diff --git a/build/linux/HGImgProc/HGImgProc.cbp b/build/linux/HGImgProc/HGImgProc.cbp
index 8282d225..58f9341b 100644
--- a/build/linux/HGImgProc/HGImgProc.cbp
+++ b/build/linux/HGImgProc/HGImgProc.cbp
@@ -505,10 +505,6 @@
 		</Compiler>
 		<Linker>
 			<Add option="-Wl,--exclude-libs,ALL" />
-			<Add option="-Wl,--wrap=log2f" />
-			<Add option="-Wl,--wrap=logf" />
-			<Add option="-Wl,--wrap=expf" />
-			<Add option="-Wl,--wrap=powf" />
 			<Add option="-z defs" />
 			<Add option="-B direct" />
 			<Add option="-static-libgcc" />
diff --git a/modules/imgproc/HGImgProc.cpp b/modules/imgproc/HGImgProc.cpp
index 97825735..bd6ee207 100644
--- a/modules/imgproc/HGImgProc.cpp
+++ b/modules/imgproc/HGImgProc.cpp
@@ -14,34 +14,6 @@
 #include "../base/HGInc.h"
 #include "../base/HGUtility.h"
 
-#if !defined(HG_CMP_MSC)
-
-extern "C" float __wrap_log2f(float f)
-{
-    asm(".symver log2f, log2f@GLIBC_2.2.5");
-    return log2f(f);
-}
-
-extern "C" float __wrap_logf(float f)
-{
-    asm(".symver logf, logf@GLIBC_2.2.5");
-    return logf(f);
-}
-
-extern "C" float __wrap_expf(float f)
-{
-    asm(".symver expf, expf@GLIBC_2.2.5");
-    return expf(f);
-}
-
-extern "C" float __wrap_powf(float f, float g)
-{
-    asm(".symver powf, powf@GLIBC_2.2.5");
-    return powf(f, g);
-}
-
-#endif
-
 HGResult HGAPI HGImgProc_ResizeImage(HGImage image, HGImage destImage, HGUInt interp)
 {
 	if (NULL == image || NULL == destImage || image == destImage)
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/allheaders.h b/third_party/leptonica/uos/aarch64/include/leptonica/allheaders.h
new file mode 100644
index 00000000..10d67806
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/allheaders.h
@@ -0,0 +1,2735 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_ALLHEADERS_H
+#define  LEPTONICA_ALLHEADERS_H
+
+
+#define LIBLEPT_MAJOR_VERSION   1
+#define LIBLEPT_MINOR_VERSION   74
+#define LIBLEPT_PATCH_VERSION   4
+
+#include "alltypes.h"
+
+#ifndef NO_PROTOS
+/*
+ *  These prototypes were autogen'd by xtractprotos, v. 1.5
+ */
+#ifdef __cplusplus
+extern "C" {
+#endif  /* __cplusplus */
+
+LEPT_DLL extern PIX * pixCleanBackgroundToWhite ( PIX *pixs, PIX *pixim, PIX *pixg, l_float32 gamma, l_int32 blackval, l_int32 whiteval );
+LEPT_DLL extern PIX * pixBackgroundNormSimple ( PIX *pixs, PIX *pixim, PIX *pixg );
+LEPT_DLL extern PIX * pixBackgroundNorm ( PIX *pixs, PIX *pixim, PIX *pixg, l_int32 sx, l_int32 sy, l_int32 thresh, l_int32 mincount, l_int32 bgval, l_int32 smoothx, l_int32 smoothy );
+LEPT_DLL extern PIX * pixBackgroundNormMorph ( PIX *pixs, PIX *pixim, l_int32 reduction, l_int32 size, l_int32 bgval );
+LEPT_DLL extern l_int32 pixBackgroundNormGrayArray ( PIX *pixs, PIX *pixim, l_int32 sx, l_int32 sy, l_int32 thresh, l_int32 mincount, l_int32 bgval, l_int32 smoothx, l_int32 smoothy, PIX **ppixd );
+LEPT_DLL extern l_int32 pixBackgroundNormRGBArrays ( PIX *pixs, PIX *pixim, PIX *pixg, l_int32 sx, l_int32 sy, l_int32 thresh, l_int32 mincount, l_int32 bgval, l_int32 smoothx, l_int32 smoothy, PIX **ppixr, PIX **ppixg, PIX **ppixb );
+LEPT_DLL extern l_int32 pixBackgroundNormGrayArrayMorph ( PIX *pixs, PIX *pixim, l_int32 reduction, l_int32 size, l_int32 bgval, PIX **ppixd );
+LEPT_DLL extern l_int32 pixBackgroundNormRGBArraysMorph ( PIX *pixs, PIX *pixim, l_int32 reduction, l_int32 size, l_int32 bgval, PIX **ppixr, PIX **ppixg, PIX **ppixb );
+LEPT_DLL extern l_int32 pixGetBackgroundGrayMap ( PIX *pixs, PIX *pixim, l_int32 sx, l_int32 sy, l_int32 thresh, l_int32 mincount, PIX **ppixd );
+LEPT_DLL extern l_int32 pixGetBackgroundRGBMap ( PIX *pixs, PIX *pixim, PIX *pixg, l_int32 sx, l_int32 sy, l_int32 thresh, l_int32 mincount, PIX **ppixmr, PIX **ppixmg, PIX **ppixmb );
+LEPT_DLL extern l_int32 pixGetBackgroundGrayMapMorph ( PIX *pixs, PIX *pixim, l_int32 reduction, l_int32 size, PIX **ppixm );
+LEPT_DLL extern l_int32 pixGetBackgroundRGBMapMorph ( PIX *pixs, PIX *pixim, l_int32 reduction, l_int32 size, PIX **ppixmr, PIX **ppixmg, PIX **ppixmb );
+LEPT_DLL extern l_int32 pixFillMapHoles ( PIX *pix, l_int32 nx, l_int32 ny, l_int32 filltype );
+LEPT_DLL extern PIX * pixExtendByReplication ( PIX *pixs, l_int32 addw, l_int32 addh );
+LEPT_DLL extern l_int32 pixSmoothConnectedRegions ( PIX *pixs, PIX *pixm, l_int32 factor );
+LEPT_DLL extern PIX * pixGetInvBackgroundMap ( PIX *pixs, l_int32 bgval, l_int32 smoothx, l_int32 smoothy );
+LEPT_DLL extern PIX * pixApplyInvBackgroundGrayMap ( PIX *pixs, PIX *pixm, l_int32 sx, l_int32 sy );
+LEPT_DLL extern PIX * pixApplyInvBackgroundRGBMap ( PIX *pixs, PIX *pixmr, PIX *pixmg, PIX *pixmb, l_int32 sx, l_int32 sy );
+LEPT_DLL extern PIX * pixApplyVariableGrayMap ( PIX *pixs, PIX *pixg, l_int32 target );
+LEPT_DLL extern PIX * pixGlobalNormRGB ( PIX *pixd, PIX *pixs, l_int32 rval, l_int32 gval, l_int32 bval, l_int32 mapval );
+LEPT_DLL extern PIX * pixGlobalNormNoSatRGB ( PIX *pixd, PIX *pixs, l_int32 rval, l_int32 gval, l_int32 bval, l_int32 factor, l_float32 rank );
+LEPT_DLL extern l_int32 pixThresholdSpreadNorm ( PIX *pixs, l_int32 filtertype, l_int32 edgethresh, l_int32 smoothx, l_int32 smoothy, l_float32 gamma, l_int32 minval, l_int32 maxval, l_int32 targetthresh, PIX **ppixth, PIX **ppixb, PIX **ppixd );
+LEPT_DLL extern PIX * pixBackgroundNormFlex ( PIX *pixs, l_int32 sx, l_int32 sy, l_int32 smoothx, l_int32 smoothy, l_int32 delta );
+LEPT_DLL extern PIX * pixContrastNorm ( PIX *pixd, PIX *pixs, l_int32 sx, l_int32 sy, l_int32 mindiff, l_int32 smoothx, l_int32 smoothy );
+LEPT_DLL extern l_int32 pixMinMaxTiles ( PIX *pixs, l_int32 sx, l_int32 sy, l_int32 mindiff, l_int32 smoothx, l_int32 smoothy, PIX **ppixmin, PIX **ppixmax );
+LEPT_DLL extern l_int32 pixSetLowContrast ( PIX *pixs1, PIX *pixs2, l_int32 mindiff );
+LEPT_DLL extern PIX * pixLinearTRCTiled ( PIX *pixd, PIX *pixs, l_int32 sx, l_int32 sy, PIX *pixmin, PIX *pixmax );
+LEPT_DLL extern PIX * pixAffineSampledPta ( PIX *pixs, PTA *ptad, PTA *ptas, l_int32 incolor );
+LEPT_DLL extern PIX * pixAffineSampled ( PIX *pixs, l_float32 *vc, l_int32 incolor );
+LEPT_DLL extern PIX * pixAffinePta ( PIX *pixs, PTA *ptad, PTA *ptas, l_int32 incolor );
+LEPT_DLL extern PIX * pixAffine ( PIX *pixs, l_float32 *vc, l_int32 incolor );
+LEPT_DLL extern PIX * pixAffinePtaColor ( PIX *pixs, PTA *ptad, PTA *ptas, l_uint32 colorval );
+LEPT_DLL extern PIX * pixAffineColor ( PIX *pixs, l_float32 *vc, l_uint32 colorval );
+LEPT_DLL extern PIX * pixAffinePtaGray ( PIX *pixs, PTA *ptad, PTA *ptas, l_uint8 grayval );
+LEPT_DLL extern PIX * pixAffineGray ( PIX *pixs, l_float32 *vc, l_uint8 grayval );
+LEPT_DLL extern PIX * pixAffinePtaWithAlpha ( PIX *pixs, PTA *ptad, PTA *ptas, PIX *pixg, l_float32 fract, l_int32 border );
+LEPT_DLL extern l_int32 getAffineXformCoeffs ( PTA *ptas, PTA *ptad, l_float32 **pvc );
+LEPT_DLL extern l_int32 affineInvertXform ( l_float32 *vc, l_float32 **pvci );
+LEPT_DLL extern l_int32 affineXformSampledPt ( l_float32 *vc, l_int32 x, l_int32 y, l_int32 *pxp, l_int32 *pyp );
+LEPT_DLL extern l_int32 affineXformPt ( l_float32 *vc, l_int32 x, l_int32 y, l_float32 *pxp, l_float32 *pyp );
+LEPT_DLL extern l_int32 linearInterpolatePixelColor ( l_uint32 *datas, l_int32 wpls, l_int32 w, l_int32 h, l_float32 x, l_float32 y, l_uint32 colorval, l_uint32 *pval );
+LEPT_DLL extern l_int32 linearInterpolatePixelGray ( l_uint32 *datas, l_int32 wpls, l_int32 w, l_int32 h, l_float32 x, l_float32 y, l_int32 grayval, l_int32 *pval );
+LEPT_DLL extern l_int32 gaussjordan ( l_float32 **a, l_float32 *b, l_int32 n );
+LEPT_DLL extern PIX * pixAffineSequential ( PIX *pixs, PTA *ptad, PTA *ptas, l_int32 bw, l_int32 bh );
+LEPT_DLL extern l_float32 * createMatrix2dTranslate ( l_float32 transx, l_float32 transy );
+LEPT_DLL extern l_float32 * createMatrix2dScale ( l_float32 scalex, l_float32 scaley );
+LEPT_DLL extern l_float32 * createMatrix2dRotate ( l_float32 xc, l_float32 yc, l_float32 angle );
+LEPT_DLL extern PTA * ptaTranslate ( PTA *ptas, l_float32 transx, l_float32 transy );
+LEPT_DLL extern PTA * ptaScale ( PTA *ptas, l_float32 scalex, l_float32 scaley );
+LEPT_DLL extern PTA * ptaRotate ( PTA *ptas, l_float32 xc, l_float32 yc, l_float32 angle );
+LEPT_DLL extern BOXA * boxaTranslate ( BOXA *boxas, l_float32 transx, l_float32 transy );
+LEPT_DLL extern BOXA * boxaScale ( BOXA *boxas, l_float32 scalex, l_float32 scaley );
+LEPT_DLL extern BOXA * boxaRotate ( BOXA *boxas, l_float32 xc, l_float32 yc, l_float32 angle );
+LEPT_DLL extern PTA * ptaAffineTransform ( PTA *ptas, l_float32 *mat );
+LEPT_DLL extern BOXA * boxaAffineTransform ( BOXA *boxas, l_float32 *mat );
+LEPT_DLL extern l_int32 l_productMatVec ( l_float32 *mat, l_float32 *vecs, l_float32 *vecd, l_int32 size );
+LEPT_DLL extern l_int32 l_productMat2 ( l_float32 *mat1, l_float32 *mat2, l_float32 *matd, l_int32 size );
+LEPT_DLL extern l_int32 l_productMat3 ( l_float32 *mat1, l_float32 *mat2, l_float32 *mat3, l_float32 *matd, l_int32 size );
+LEPT_DLL extern l_int32 l_productMat4 ( l_float32 *mat1, l_float32 *mat2, l_float32 *mat3, l_float32 *mat4, l_float32 *matd, l_int32 size );
+LEPT_DLL extern l_int32 l_getDataBit ( void *line, l_int32 n );
+LEPT_DLL extern void l_setDataBit ( void *line, l_int32 n );
+LEPT_DLL extern void l_clearDataBit ( void *line, l_int32 n );
+LEPT_DLL extern void l_setDataBitVal ( void *line, l_int32 n, l_int32 val );
+LEPT_DLL extern l_int32 l_getDataDibit ( void *line, l_int32 n );
+LEPT_DLL extern void l_setDataDibit ( void *line, l_int32 n, l_int32 val );
+LEPT_DLL extern void l_clearDataDibit ( void *line, l_int32 n );
+LEPT_DLL extern l_int32 l_getDataQbit ( void *line, l_int32 n );
+LEPT_DLL extern void l_setDataQbit ( void *line, l_int32 n, l_int32 val );
+LEPT_DLL extern void l_clearDataQbit ( void *line, l_int32 n );
+LEPT_DLL extern l_int32 l_getDataByte ( void *line, l_int32 n );
+LEPT_DLL extern void l_setDataByte ( void *line, l_int32 n, l_int32 val );
+LEPT_DLL extern l_int32 l_getDataTwoBytes ( void *line, l_int32 n );
+LEPT_DLL extern void l_setDataTwoBytes ( void *line, l_int32 n, l_int32 val );
+LEPT_DLL extern l_int32 l_getDataFourBytes ( void *line, l_int32 n );
+LEPT_DLL extern void l_setDataFourBytes ( void *line, l_int32 n, l_int32 val );
+LEPT_DLL extern char * barcodeDispatchDecoder ( char *barstr, l_int32 format, l_int32 debugflag );
+LEPT_DLL extern l_int32 barcodeFormatIsSupported ( l_int32 format );
+LEPT_DLL extern NUMA * pixFindBaselines ( PIX *pixs, PTA **ppta, PIXA *pixadb );
+LEPT_DLL extern PIX * pixDeskewLocal ( PIX *pixs, l_int32 nslices, l_int32 redsweep, l_int32 redsearch, l_float32 sweeprange, l_float32 sweepdelta, l_float32 minbsdelta );
+LEPT_DLL extern l_int32 pixGetLocalSkewTransform ( PIX *pixs, l_int32 nslices, l_int32 redsweep, l_int32 redsearch, l_float32 sweeprange, l_float32 sweepdelta, l_float32 minbsdelta, PTA **pptas, PTA **pptad );
+LEPT_DLL extern NUMA * pixGetLocalSkewAngles ( PIX *pixs, l_int32 nslices, l_int32 redsweep, l_int32 redsearch, l_float32 sweeprange, l_float32 sweepdelta, l_float32 minbsdelta, l_float32 *pa, l_float32 *pb, l_int32 debug );
+LEPT_DLL extern L_BBUFFER * bbufferCreate ( l_uint8 *indata, l_int32 nalloc );
+LEPT_DLL extern void bbufferDestroy ( L_BBUFFER **pbb );
+LEPT_DLL extern l_uint8 * bbufferDestroyAndSaveData ( L_BBUFFER **pbb, size_t *pnbytes );
+LEPT_DLL extern l_int32 bbufferRead ( L_BBUFFER *bb, l_uint8 *src, l_int32 nbytes );
+LEPT_DLL extern l_int32 bbufferReadStream ( L_BBUFFER *bb, FILE *fp, l_int32 nbytes );
+LEPT_DLL extern l_int32 bbufferExtendArray ( L_BBUFFER *bb, l_int32 nbytes );
+LEPT_DLL extern l_int32 bbufferWrite ( L_BBUFFER *bb, l_uint8 *dest, size_t nbytes, size_t *pnout );
+LEPT_DLL extern l_int32 bbufferWriteStream ( L_BBUFFER *bb, FILE *fp, size_t nbytes, size_t *pnout );
+LEPT_DLL extern PIX * pixBilateral ( PIX *pixs, l_float32 spatial_stdev, l_float32 range_stdev, l_int32 ncomps, l_int32 reduction );
+LEPT_DLL extern PIX * pixBilateralGray ( PIX *pixs, l_float32 spatial_stdev, l_float32 range_stdev, l_int32 ncomps, l_int32 reduction );
+LEPT_DLL extern PIX * pixBilateralExact ( PIX *pixs, L_KERNEL *spatial_kel, L_KERNEL *range_kel );
+LEPT_DLL extern PIX * pixBilateralGrayExact ( PIX *pixs, L_KERNEL *spatial_kel, L_KERNEL *range_kel );
+LEPT_DLL extern PIX* pixBlockBilateralExact ( PIX *pixs, l_float32 spatial_stdev, l_float32 range_stdev );
+LEPT_DLL extern L_KERNEL * makeRangeKernel ( l_float32 range_stdev );
+LEPT_DLL extern PIX * pixBilinearSampledPta ( PIX *pixs, PTA *ptad, PTA *ptas, l_int32 incolor );
+LEPT_DLL extern PIX * pixBilinearSampled ( PIX *pixs, l_float32 *vc, l_int32 incolor );
+LEPT_DLL extern PIX * pixBilinearPta ( PIX *pixs, PTA *ptad, PTA *ptas, l_int32 incolor );
+LEPT_DLL extern PIX * pixBilinear ( PIX *pixs, l_float32 *vc, l_int32 incolor );
+LEPT_DLL extern PIX * pixBilinearPtaColor ( PIX *pixs, PTA *ptad, PTA *ptas, l_uint32 colorval );
+LEPT_DLL extern PIX * pixBilinearColor ( PIX *pixs, l_float32 *vc, l_uint32 colorval );
+LEPT_DLL extern PIX * pixBilinearPtaGray ( PIX *pixs, PTA *ptad, PTA *ptas, l_uint8 grayval );
+LEPT_DLL extern PIX * pixBilinearGray ( PIX *pixs, l_float32 *vc, l_uint8 grayval );
+LEPT_DLL extern PIX * pixBilinearPtaWithAlpha ( PIX *pixs, PTA *ptad, PTA *ptas, PIX *pixg, l_float32 fract, l_int32 border );
+LEPT_DLL extern l_int32 getBilinearXformCoeffs ( PTA *ptas, PTA *ptad, l_float32 **pvc );
+LEPT_DLL extern l_int32 bilinearXformSampledPt ( l_float32 *vc, l_int32 x, l_int32 y, l_int32 *pxp, l_int32 *pyp );
+LEPT_DLL extern l_int32 bilinearXformPt ( l_float32 *vc, l_int32 x, l_int32 y, l_float32 *pxp, l_float32 *pyp );
+LEPT_DLL extern l_int32 pixOtsuAdaptiveThreshold ( PIX *pixs, l_int32 sx, l_int32 sy, l_int32 smoothx, l_int32 smoothy, l_float32 scorefract, PIX **ppixth, PIX **ppixd );
+LEPT_DLL extern PIX * pixOtsuThreshOnBackgroundNorm ( PIX *pixs, PIX *pixim, l_int32 sx, l_int32 sy, l_int32 thresh, l_int32 mincount, l_int32 bgval, l_int32 smoothx, l_int32 smoothy, l_float32 scorefract, l_int32 *pthresh );
+LEPT_DLL extern PIX * pixMaskedThreshOnBackgroundNorm ( PIX *pixs, PIX *pixim, l_int32 sx, l_int32 sy, l_int32 thresh, l_int32 mincount, l_int32 smoothx, l_int32 smoothy, l_float32 scorefract, l_int32 *pthresh );
+LEPT_DLL extern l_int32 pixSauvolaBinarizeTiled ( PIX *pixs, l_int32 whsize, l_float32 factor, l_int32 nx, l_int32 ny, PIX **ppixth, PIX **ppixd );
+LEPT_DLL extern l_int32 pixSauvolaBinarize ( PIX *pixs, l_int32 whsize, l_float32 factor, l_int32 addborder, PIX **ppixm, PIX **ppixsd, PIX **ppixth, PIX **ppixd );
+LEPT_DLL extern PIX * pixSauvolaGetThreshold ( PIX *pixm, PIX *pixms, l_float32 factor, PIX **ppixsd );
+LEPT_DLL extern PIX * pixApplyLocalThreshold ( PIX *pixs, PIX *pixth, l_int32 redfactor );
+LEPT_DLL extern l_int32 pixThresholdByConnComp ( PIX *pixs, PIX *pixm, l_int32 start, l_int32 end, l_int32 incr, l_float32 thresh48, l_float32 threshdiff, l_int32 *pglobthresh, PIX **ppixd, l_int32 debugflag );
+LEPT_DLL extern PIX * pixExpandBinaryReplicate ( PIX *pixs, l_int32 xfact, l_int32 yfact );
+LEPT_DLL extern PIX * pixExpandBinaryPower2 ( PIX *pixs, l_int32 factor );
+LEPT_DLL extern PIX * pixReduceBinary2 ( PIX *pixs, l_uint8 *intab );
+LEPT_DLL extern PIX * pixReduceRankBinaryCascade ( PIX *pixs, l_int32 level1, l_int32 level2, l_int32 level3, l_int32 level4 );
+LEPT_DLL extern PIX * pixReduceRankBinary2 ( PIX *pixs, l_int32 level, l_uint8 *intab );
+LEPT_DLL extern l_uint8 * makeSubsampleTab2x ( void );
+LEPT_DLL extern PIX * pixBlend ( PIX *pixs1, PIX *pixs2, l_int32 x, l_int32 y, l_float32 fract );
+LEPT_DLL extern PIX * pixBlendMask ( PIX *pixd, PIX *pixs1, PIX *pixs2, l_int32 x, l_int32 y, l_float32 fract, l_int32 type );
+LEPT_DLL extern PIX * pixBlendGray ( PIX *pixd, PIX *pixs1, PIX *pixs2, l_int32 x, l_int32 y, l_float32 fract, l_int32 type, l_int32 transparent, l_uint32 transpix );
+LEPT_DLL extern PIX * pixBlendGrayInverse ( PIX *pixd, PIX *pixs1, PIX *pixs2, l_int32 x, l_int32 y, l_float32 fract );
+LEPT_DLL extern PIX * pixBlendColor ( PIX *pixd, PIX *pixs1, PIX *pixs2, l_int32 x, l_int32 y, l_float32 fract, l_int32 transparent, l_uint32 transpix );
+LEPT_DLL extern PIX * pixBlendColorByChannel ( PIX *pixd, PIX *pixs1, PIX *pixs2, l_int32 x, l_int32 y, l_float32 rfract, l_float32 gfract, l_float32 bfract, l_int32 transparent, l_uint32 transpix );
+LEPT_DLL extern PIX * pixBlendGrayAdapt ( PIX *pixd, PIX *pixs1, PIX *pixs2, l_int32 x, l_int32 y, l_float32 fract, l_int32 shift );
+LEPT_DLL extern PIX * pixFadeWithGray ( PIX *pixs, PIX *pixb, l_float32 factor, l_int32 type );
+LEPT_DLL extern PIX * pixBlendHardLight ( PIX *pixd, PIX *pixs1, PIX *pixs2, l_int32 x, l_int32 y, l_float32 fract );
+LEPT_DLL extern l_int32 pixBlendCmap ( PIX *pixs, PIX *pixb, l_int32 x, l_int32 y, l_int32 sindex );
+LEPT_DLL extern PIX * pixBlendWithGrayMask ( PIX *pixs1, PIX *pixs2, PIX *pixg, l_int32 x, l_int32 y );
+LEPT_DLL extern PIX * pixBlendBackgroundToColor ( PIX *pixd, PIX *pixs, BOX *box, l_uint32 color, l_float32 gamma, l_int32 minval, l_int32 maxval );
+LEPT_DLL extern PIX * pixMultiplyByColor ( PIX *pixd, PIX *pixs, BOX *box, l_uint32 color );
+LEPT_DLL extern PIX * pixAlphaBlendUniform ( PIX *pixs, l_uint32 color );
+LEPT_DLL extern PIX * pixAddAlphaToBlend ( PIX *pixs, l_float32 fract, l_int32 invert );
+LEPT_DLL extern PIX * pixSetAlphaOverWhite ( PIX *pixs );
+LEPT_DLL extern L_BMF * bmfCreate ( const char *dir, l_int32 fontsize );
+LEPT_DLL extern void bmfDestroy ( L_BMF **pbmf );
+LEPT_DLL extern PIX * bmfGetPix ( L_BMF *bmf, char chr );
+LEPT_DLL extern l_int32 bmfGetWidth ( L_BMF *bmf, char chr, l_int32 *pw );
+LEPT_DLL extern l_int32 bmfGetBaseline ( L_BMF *bmf, char chr, l_int32 *pbaseline );
+LEPT_DLL extern PIXA * pixaGetFont ( const char *dir, l_int32 fontsize, l_int32 *pbl0, l_int32 *pbl1, l_int32 *pbl2 );
+LEPT_DLL extern l_int32 pixaSaveFont ( const char *indir, const char *outdir, l_int32 fontsize );
+LEPT_DLL extern PIX * pixReadStreamBmp ( FILE *fp );
+LEPT_DLL extern PIX * pixReadMemBmp ( const l_uint8 *cdata, size_t size );
+LEPT_DLL extern l_int32 pixWriteStreamBmp ( FILE *fp, PIX *pix );
+LEPT_DLL extern l_int32 pixWriteMemBmp ( l_uint8 **pfdata, size_t *pfsize, PIX *pixs );
+LEPT_DLL extern PIXA * l_bootnum_gen1 ( void );
+LEPT_DLL extern PIXA * l_bootnum_gen2 ( void );
+LEPT_DLL extern PIXA * l_bootnum_gen3 ( void );
+LEPT_DLL extern BOX * boxCreate ( l_int32 x, l_int32 y, l_int32 w, l_int32 h );
+LEPT_DLL extern BOX * boxCreateValid ( l_int32 x, l_int32 y, l_int32 w, l_int32 h );
+LEPT_DLL extern BOX * boxCopy ( BOX *box );
+LEPT_DLL extern BOX * boxClone ( BOX *box );
+LEPT_DLL extern void boxDestroy ( BOX **pbox );
+LEPT_DLL extern l_int32 boxGetGeometry ( BOX *box, l_int32 *px, l_int32 *py, l_int32 *pw, l_int32 *ph );
+LEPT_DLL extern l_int32 boxSetGeometry ( BOX *box, l_int32 x, l_int32 y, l_int32 w, l_int32 h );
+LEPT_DLL extern l_int32 boxGetSideLocations ( BOX *box, l_int32 *pl, l_int32 *pr, l_int32 *pt, l_int32 *pb );
+LEPT_DLL extern l_int32 boxSetSideLocations ( BOX *box, l_int32 l, l_int32 r, l_int32 t, l_int32 b );
+LEPT_DLL extern l_int32 boxGetRefcount ( BOX *box );
+LEPT_DLL extern l_int32 boxChangeRefcount ( BOX *box, l_int32 delta );
+LEPT_DLL extern l_int32 boxIsValid ( BOX *box, l_int32 *pvalid );
+LEPT_DLL extern BOXA * boxaCreate ( l_int32 n );
+LEPT_DLL extern BOXA * boxaCopy ( BOXA *boxa, l_int32 copyflag );
+LEPT_DLL extern void boxaDestroy ( BOXA **pboxa );
+LEPT_DLL extern l_int32 boxaAddBox ( BOXA *boxa, BOX *box, l_int32 copyflag );
+LEPT_DLL extern l_int32 boxaExtendArray ( BOXA *boxa );
+LEPT_DLL extern l_int32 boxaExtendArrayToSize ( BOXA *boxa, l_int32 size );
+LEPT_DLL extern l_int32 boxaGetCount ( BOXA *boxa );
+LEPT_DLL extern l_int32 boxaGetValidCount ( BOXA *boxa );
+LEPT_DLL extern BOX * boxaGetBox ( BOXA *boxa, l_int32 index, l_int32 accessflag );
+LEPT_DLL extern BOX * boxaGetValidBox ( BOXA *boxa, l_int32 index, l_int32 accessflag );
+LEPT_DLL extern NUMA * boxaFindInvalidBoxes ( BOXA *boxa );
+LEPT_DLL extern l_int32 boxaGetBoxGeometry ( BOXA *boxa, l_int32 index, l_int32 *px, l_int32 *py, l_int32 *pw, l_int32 *ph );
+LEPT_DLL extern l_int32 boxaIsFull ( BOXA *boxa, l_int32 *pfull );
+LEPT_DLL extern l_int32 boxaReplaceBox ( BOXA *boxa, l_int32 index, BOX *box );
+LEPT_DLL extern l_int32 boxaInsertBox ( BOXA *boxa, l_int32 index, BOX *box );
+LEPT_DLL extern l_int32 boxaRemoveBox ( BOXA *boxa, l_int32 index );
+LEPT_DLL extern l_int32 boxaRemoveBoxAndSave ( BOXA *boxa, l_int32 index, BOX **pbox );
+LEPT_DLL extern BOXA * boxaSaveValid ( BOXA *boxas, l_int32 copyflag );
+LEPT_DLL extern l_int32 boxaInitFull ( BOXA *boxa, BOX *box );
+LEPT_DLL extern l_int32 boxaClear ( BOXA *boxa );
+LEPT_DLL extern BOXAA * boxaaCreate ( l_int32 n );
+LEPT_DLL extern BOXAA * boxaaCopy ( BOXAA *baas, l_int32 copyflag );
+LEPT_DLL extern void boxaaDestroy ( BOXAA **pbaa );
+LEPT_DLL extern l_int32 boxaaAddBoxa ( BOXAA *baa, BOXA *ba, l_int32 copyflag );
+LEPT_DLL extern l_int32 boxaaExtendArray ( BOXAA *baa );
+LEPT_DLL extern l_int32 boxaaExtendArrayToSize ( BOXAA *baa, l_int32 size );
+LEPT_DLL extern l_int32 boxaaGetCount ( BOXAA *baa );
+LEPT_DLL extern l_int32 boxaaGetBoxCount ( BOXAA *baa );
+LEPT_DLL extern BOXA * boxaaGetBoxa ( BOXAA *baa, l_int32 index, l_int32 accessflag );
+LEPT_DLL extern BOX * boxaaGetBox ( BOXAA *baa, l_int32 iboxa, l_int32 ibox, l_int32 accessflag );
+LEPT_DLL extern l_int32 boxaaInitFull ( BOXAA *baa, BOXA *boxa );
+LEPT_DLL extern l_int32 boxaaExtendWithInit ( BOXAA *baa, l_int32 maxindex, BOXA *boxa );
+LEPT_DLL extern l_int32 boxaaReplaceBoxa ( BOXAA *baa, l_int32 index, BOXA *boxa );
+LEPT_DLL extern l_int32 boxaaInsertBoxa ( BOXAA *baa, l_int32 index, BOXA *boxa );
+LEPT_DLL extern l_int32 boxaaRemoveBoxa ( BOXAA *baa, l_int32 index );
+LEPT_DLL extern l_int32 boxaaAddBox ( BOXAA *baa, l_int32 index, BOX *box, l_int32 accessflag );
+LEPT_DLL extern BOXAA * boxaaReadFromFiles ( const char *dirname, const char *substr, l_int32 first, l_int32 nfiles );
+LEPT_DLL extern BOXAA * boxaaRead ( const char *filename );
+LEPT_DLL extern BOXAA * boxaaReadStream ( FILE *fp );
+LEPT_DLL extern BOXAA * boxaaReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 boxaaWrite ( const char *filename, BOXAA *baa );
+LEPT_DLL extern l_int32 boxaaWriteStream ( FILE *fp, BOXAA *baa );
+LEPT_DLL extern l_int32 boxaaWriteMem ( l_uint8 **pdata, size_t *psize, BOXAA *baa );
+LEPT_DLL extern BOXA * boxaRead ( const char *filename );
+LEPT_DLL extern BOXA * boxaReadStream ( FILE *fp );
+LEPT_DLL extern BOXA * boxaReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 boxaWrite ( const char *filename, BOXA *boxa );
+LEPT_DLL extern l_int32 boxaWriteStream ( FILE *fp, BOXA *boxa );
+LEPT_DLL extern l_int32 boxaWriteMem ( l_uint8 **pdata, size_t *psize, BOXA *boxa );
+LEPT_DLL extern l_int32 boxPrintStreamInfo ( FILE *fp, BOX *box );
+LEPT_DLL extern l_int32 boxContains ( BOX *box1, BOX *box2, l_int32 *presult );
+LEPT_DLL extern l_int32 boxIntersects ( BOX *box1, BOX *box2, l_int32 *presult );
+LEPT_DLL extern BOXA * boxaContainedInBox ( BOXA *boxas, BOX *box );
+LEPT_DLL extern l_int32 boxaContainedInBoxCount ( BOXA *boxa, BOX *box, l_int32 *pcount );
+LEPT_DLL extern l_int32 boxaContainedInBoxa ( BOXA *boxa1, BOXA *boxa2, l_int32 *pcontained );
+LEPT_DLL extern BOXA * boxaIntersectsBox ( BOXA *boxas, BOX *box );
+LEPT_DLL extern l_int32 boxaIntersectsBoxCount ( BOXA *boxa, BOX *box, l_int32 *pcount );
+LEPT_DLL extern BOXA * boxaClipToBox ( BOXA *boxas, BOX *box );
+LEPT_DLL extern BOXA * boxaCombineOverlaps ( BOXA *boxas, PIXA *pixadb );
+LEPT_DLL extern l_int32 boxaCombineOverlapsInPair ( BOXA *boxas1, BOXA *boxas2, BOXA **pboxad1, BOXA **pboxad2, PIXA *pixadb );
+LEPT_DLL extern BOX * boxOverlapRegion ( BOX *box1, BOX *box2 );
+LEPT_DLL extern BOX * boxBoundingRegion ( BOX *box1, BOX *box2 );
+LEPT_DLL extern l_int32 boxOverlapFraction ( BOX *box1, BOX *box2, l_float32 *pfract );
+LEPT_DLL extern l_int32 boxOverlapArea ( BOX *box1, BOX *box2, l_int32 *parea );
+LEPT_DLL extern BOXA * boxaHandleOverlaps ( BOXA *boxas, l_int32 op, l_int32 range, l_float32 min_overlap, l_float32 max_ratio, NUMA **pnamap );
+LEPT_DLL extern l_int32 boxSeparationDistance ( BOX *box1, BOX *box2, l_int32 *ph_sep, l_int32 *pv_sep );
+LEPT_DLL extern l_int32 boxCompareSize ( BOX *box1, BOX *box2, l_int32 type, l_int32 *prel );
+LEPT_DLL extern l_int32 boxContainsPt ( BOX *box, l_float32 x, l_float32 y, l_int32 *pcontains );
+LEPT_DLL extern BOX * boxaGetNearestToPt ( BOXA *boxa, l_int32 x, l_int32 y );
+LEPT_DLL extern BOX * boxaGetNearestToLine ( BOXA *boxa, l_int32 x, l_int32 y );
+LEPT_DLL extern l_int32 boxGetCenter ( BOX *box, l_float32 *pcx, l_float32 *pcy );
+LEPT_DLL extern l_int32 boxIntersectByLine ( BOX *box, l_int32 x, l_int32 y, l_float32 slope, l_int32 *px1, l_int32 *py1, l_int32 *px2, l_int32 *py2, l_int32 *pn );
+LEPT_DLL extern BOX * boxClipToRectangle ( BOX *box, l_int32 wi, l_int32 hi );
+LEPT_DLL extern l_int32 boxClipToRectangleParams ( BOX *box, l_int32 w, l_int32 h, l_int32 *pxstart, l_int32 *pystart, l_int32 *pxend, l_int32 *pyend, l_int32 *pbw, l_int32 *pbh );
+LEPT_DLL extern BOX * boxRelocateOneSide ( BOX *boxd, BOX *boxs, l_int32 loc, l_int32 sideflag );
+LEPT_DLL extern BOXA * boxaAdjustSides ( BOXA *boxas, l_int32 delleft, l_int32 delright, l_int32 deltop, l_int32 delbot );
+LEPT_DLL extern BOX * boxAdjustSides ( BOX *boxd, BOX *boxs, l_int32 delleft, l_int32 delright, l_int32 deltop, l_int32 delbot );
+LEPT_DLL extern BOXA * boxaSetSide ( BOXA *boxad, BOXA *boxas, l_int32 side, l_int32 val, l_int32 thresh );
+LEPT_DLL extern BOXA * boxaAdjustWidthToTarget ( BOXA *boxad, BOXA *boxas, l_int32 sides, l_int32 target, l_int32 thresh );
+LEPT_DLL extern BOXA * boxaAdjustHeightToTarget ( BOXA *boxad, BOXA *boxas, l_int32 sides, l_int32 target, l_int32 thresh );
+LEPT_DLL extern l_int32 boxEqual ( BOX *box1, BOX *box2, l_int32 *psame );
+LEPT_DLL extern l_int32 boxaEqual ( BOXA *boxa1, BOXA *boxa2, l_int32 maxdist, NUMA **pnaindex, l_int32 *psame );
+LEPT_DLL extern l_int32 boxSimilar ( BOX *box1, BOX *box2, l_int32 leftdiff, l_int32 rightdiff, l_int32 topdiff, l_int32 botdiff, l_int32 *psimilar );
+LEPT_DLL extern l_int32 boxaSimilar ( BOXA *boxa1, BOXA *boxa2, l_int32 leftdiff, l_int32 rightdiff, l_int32 topdiff, l_int32 botdiff, l_int32 debug, l_int32 *psimilar, NUMA **pnasim );
+LEPT_DLL extern l_int32 boxaJoin ( BOXA *boxad, BOXA *boxas, l_int32 istart, l_int32 iend );
+LEPT_DLL extern l_int32 boxaaJoin ( BOXAA *baad, BOXAA *baas, l_int32 istart, l_int32 iend );
+LEPT_DLL extern l_int32 boxaSplitEvenOdd ( BOXA *boxa, l_int32 fillflag, BOXA **pboxae, BOXA **pboxao );
+LEPT_DLL extern BOXA * boxaMergeEvenOdd ( BOXA *boxae, BOXA *boxao, l_int32 fillflag );
+LEPT_DLL extern BOXA * boxaTransform ( BOXA *boxas, l_int32 shiftx, l_int32 shifty, l_float32 scalex, l_float32 scaley );
+LEPT_DLL extern BOX * boxTransform ( BOX *box, l_int32 shiftx, l_int32 shifty, l_float32 scalex, l_float32 scaley );
+LEPT_DLL extern BOXA * boxaTransformOrdered ( BOXA *boxas, l_int32 shiftx, l_int32 shifty, l_float32 scalex, l_float32 scaley, l_int32 xcen, l_int32 ycen, l_float32 angle, l_int32 order );
+LEPT_DLL extern BOX * boxTransformOrdered ( BOX *boxs, l_int32 shiftx, l_int32 shifty, l_float32 scalex, l_float32 scaley, l_int32 xcen, l_int32 ycen, l_float32 angle, l_int32 order );
+LEPT_DLL extern BOXA * boxaRotateOrth ( BOXA *boxas, l_int32 w, l_int32 h, l_int32 rotation );
+LEPT_DLL extern BOX * boxRotateOrth ( BOX *box, l_int32 w, l_int32 h, l_int32 rotation );
+LEPT_DLL extern BOXA * boxaSort ( BOXA *boxas, l_int32 sorttype, l_int32 sortorder, NUMA **pnaindex );
+LEPT_DLL extern BOXA * boxaBinSort ( BOXA *boxas, l_int32 sorttype, l_int32 sortorder, NUMA **pnaindex );
+LEPT_DLL extern BOXA * boxaSortByIndex ( BOXA *boxas, NUMA *naindex );
+LEPT_DLL extern BOXAA * boxaSort2d ( BOXA *boxas, NUMAA **pnaad, l_int32 delta1, l_int32 delta2, l_int32 minh1 );
+LEPT_DLL extern BOXAA * boxaSort2dByIndex ( BOXA *boxas, NUMAA *naa );
+LEPT_DLL extern l_int32 boxaExtractAsNuma ( BOXA *boxa, NUMA **pnal, NUMA **pnat, NUMA **pnar, NUMA **pnab, NUMA **pnaw, NUMA **pnah, l_int32 keepinvalid );
+LEPT_DLL extern l_int32 boxaExtractAsPta ( BOXA *boxa, PTA **pptal, PTA **pptat, PTA **pptar, PTA **pptab, PTA **pptaw, PTA **pptah, l_int32 keepinvalid );
+LEPT_DLL extern l_int32 boxaGetRankVals ( BOXA *boxa, l_float32 fract, l_int32 *px, l_int32 *py, l_int32 *pw, l_int32 *ph );
+LEPT_DLL extern l_int32 boxaGetMedianVals ( BOXA *boxa, l_int32 *px, l_int32 *py, l_int32 *pw, l_int32 *ph );
+LEPT_DLL extern l_int32 boxaGetAverageSize ( BOXA *boxa, l_float32 *pw, l_float32 *ph );
+LEPT_DLL extern l_int32 boxaaGetExtent ( BOXAA *baa, l_int32 *pw, l_int32 *ph, BOX **pbox, BOXA **pboxa );
+LEPT_DLL extern BOXA * boxaaFlattenToBoxa ( BOXAA *baa, NUMA **pnaindex, l_int32 copyflag );
+LEPT_DLL extern BOXA * boxaaFlattenAligned ( BOXAA *baa, l_int32 num, BOX *fillerbox, l_int32 copyflag );
+LEPT_DLL extern BOXAA * boxaEncapsulateAligned ( BOXA *boxa, l_int32 num, l_int32 copyflag );
+LEPT_DLL extern BOXAA * boxaaTranspose ( BOXAA *baas );
+LEPT_DLL extern l_int32 boxaaAlignBox ( BOXAA *baa, BOX *box, l_int32 delta, l_int32 *pindex );
+LEPT_DLL extern PIX * pixMaskConnComp ( PIX *pixs, l_int32 connectivity, BOXA **pboxa );
+LEPT_DLL extern PIX * pixMaskBoxa ( PIX *pixd, PIX *pixs, BOXA *boxa, l_int32 op );
+LEPT_DLL extern PIX * pixPaintBoxa ( PIX *pixs, BOXA *boxa, l_uint32 val );
+LEPT_DLL extern PIX * pixSetBlackOrWhiteBoxa ( PIX *pixs, BOXA *boxa, l_int32 op );
+LEPT_DLL extern PIX * pixPaintBoxaRandom ( PIX *pixs, BOXA *boxa );
+LEPT_DLL extern PIX * pixBlendBoxaRandom ( PIX *pixs, BOXA *boxa, l_float32 fract );
+LEPT_DLL extern PIX * pixDrawBoxa ( PIX *pixs, BOXA *boxa, l_int32 width, l_uint32 val );
+LEPT_DLL extern PIX * pixDrawBoxaRandom ( PIX *pixs, BOXA *boxa, l_int32 width );
+LEPT_DLL extern PIX * boxaaDisplay ( PIX *pixs, BOXAA *baa, l_int32 linewba, l_int32 linewb, l_uint32 colorba, l_uint32 colorb, l_int32 w, l_int32 h );
+LEPT_DLL extern PIXA * pixaDisplayBoxaa ( PIXA *pixas, BOXAA *baa, l_int32 colorflag, l_int32 width );
+LEPT_DLL extern BOXA * pixSplitIntoBoxa ( PIX *pixs, l_int32 minsum, l_int32 skipdist, l_int32 delta, l_int32 maxbg, l_int32 maxcomps, l_int32 remainder );
+LEPT_DLL extern BOXA * pixSplitComponentIntoBoxa ( PIX *pix, BOX *box, l_int32 minsum, l_int32 skipdist, l_int32 delta, l_int32 maxbg, l_int32 maxcomps, l_int32 remainder );
+LEPT_DLL extern BOXA * makeMosaicStrips ( l_int32 w, l_int32 h, l_int32 direction, l_int32 size );
+LEPT_DLL extern l_int32 boxaCompareRegions ( BOXA *boxa1, BOXA *boxa2, l_int32 areathresh, l_int32 *pnsame, l_float32 *pdiffarea, l_float32 *pdiffxor, PIX **ppixdb );
+LEPT_DLL extern BOX * pixSelectLargeULComp ( PIX *pixs, l_float32 areaslop, l_int32 yslop, l_int32 connectivity );
+LEPT_DLL extern BOX * boxaSelectLargeULBox ( BOXA *boxas, l_float32 areaslop, l_int32 yslop );
+LEPT_DLL extern BOXA * boxaSelectRange ( BOXA *boxas, l_int32 first, l_int32 last, l_int32 copyflag );
+LEPT_DLL extern BOXAA * boxaaSelectRange ( BOXAA *baas, l_int32 first, l_int32 last, l_int32 copyflag );
+LEPT_DLL extern BOXA * boxaSelectBySize ( BOXA *boxas, l_int32 width, l_int32 height, l_int32 type, l_int32 relation, l_int32 *pchanged );
+LEPT_DLL extern NUMA * boxaMakeSizeIndicator ( BOXA *boxa, l_int32 width, l_int32 height, l_int32 type, l_int32 relation );
+LEPT_DLL extern BOXA * boxaSelectByArea ( BOXA *boxas, l_int32 area, l_int32 relation, l_int32 *pchanged );
+LEPT_DLL extern NUMA * boxaMakeAreaIndicator ( BOXA *boxa, l_int32 area, l_int32 relation );
+LEPT_DLL extern BOXA * boxaSelectByWHRatio ( BOXA *boxas, l_float32 ratio, l_int32 relation, l_int32 *pchanged );
+LEPT_DLL extern NUMA * boxaMakeWHRatioIndicator ( BOXA *boxa, l_float32 ratio, l_int32 relation );
+LEPT_DLL extern BOXA * boxaSelectWithIndicator ( BOXA *boxas, NUMA *na, l_int32 *pchanged );
+LEPT_DLL extern BOXA * boxaPermutePseudorandom ( BOXA *boxas );
+LEPT_DLL extern BOXA * boxaPermuteRandom ( BOXA *boxad, BOXA *boxas );
+LEPT_DLL extern l_int32 boxaSwapBoxes ( BOXA *boxa, l_int32 i, l_int32 j );
+LEPT_DLL extern PTA * boxaConvertToPta ( BOXA *boxa, l_int32 ncorners );
+LEPT_DLL extern BOXA * ptaConvertToBoxa ( PTA *pta, l_int32 ncorners );
+LEPT_DLL extern PTA * boxConvertToPta ( BOX *box, l_int32 ncorners );
+LEPT_DLL extern BOX * ptaConvertToBox ( PTA *pta );
+LEPT_DLL extern BOXA * boxaSmoothSequenceLS ( BOXA *boxas, l_float32 factor, l_int32 subflag, l_int32 maxdiff, l_int32 debug );
+LEPT_DLL extern BOXA * boxaSmoothSequenceMedian ( BOXA *boxas, l_int32 halfwin, l_int32 subflag, l_int32 maxdiff, l_int32 debug );
+LEPT_DLL extern BOXA * boxaLinearFit ( BOXA *boxas, l_float32 factor, l_int32 debug );
+LEPT_DLL extern BOXA * boxaWindowedMedian ( BOXA *boxas, l_int32 halfwin, l_int32 debug );
+LEPT_DLL extern BOXA * boxaModifyWithBoxa ( BOXA *boxas, BOXA *boxam, l_int32 subflag, l_int32 maxdiff );
+LEPT_DLL extern BOXA * boxaConstrainSize ( BOXA *boxas, l_int32 width, l_int32 widthflag, l_int32 height, l_int32 heightflag );
+LEPT_DLL extern BOXA * boxaReconcileEvenOddHeight ( BOXA *boxas, l_int32 sides, l_int32 delh, l_int32 op, l_float32 factor, l_int32 start );
+LEPT_DLL extern BOXA * boxaReconcilePairWidth ( BOXA *boxas, l_int32 delw, l_int32 op, l_float32 factor, NUMA *na );
+LEPT_DLL extern l_int32 boxaPlotSides ( BOXA *boxa, const char *plotname, NUMA **pnal, NUMA **pnat, NUMA **pnar, NUMA **pnab, PIX **ppixd );
+LEPT_DLL extern l_int32 boxaPlotSizes ( BOXA *boxa, const char *plotname, NUMA **pnaw, NUMA **pnah, PIX **ppixd );
+LEPT_DLL extern BOXA * boxaFillSequence ( BOXA *boxas, l_int32 useflag, l_int32 debug );
+LEPT_DLL extern l_int32 boxaGetExtent ( BOXA *boxa, l_int32 *pw, l_int32 *ph, BOX **pbox );
+LEPT_DLL extern l_int32 boxaGetCoverage ( BOXA *boxa, l_int32 wc, l_int32 hc, l_int32 exactflag, l_float32 *pfract );
+LEPT_DLL extern l_int32 boxaaSizeRange ( BOXAA *baa, l_int32 *pminw, l_int32 *pminh, l_int32 *pmaxw, l_int32 *pmaxh );
+LEPT_DLL extern l_int32 boxaSizeRange ( BOXA *boxa, l_int32 *pminw, l_int32 *pminh, l_int32 *pmaxw, l_int32 *pmaxh );
+LEPT_DLL extern l_int32 boxaLocationRange ( BOXA *boxa, l_int32 *pminx, l_int32 *pminy, l_int32 *pmaxx, l_int32 *pmaxy );
+LEPT_DLL extern l_int32 boxaGetSizes ( BOXA *boxa, NUMA **pnaw, NUMA **pnah );
+LEPT_DLL extern l_int32 boxaGetArea ( BOXA *boxa, l_int32 *parea );
+LEPT_DLL extern PIX * boxaDisplayTiled ( BOXA *boxas, PIXA *pixa, l_int32 maxwidth, l_int32 linewidth, l_float32 scalefactor, l_int32 background, l_int32 spacing, l_int32 border );
+LEPT_DLL extern L_BYTEA * l_byteaCreate ( size_t nbytes );
+LEPT_DLL extern L_BYTEA * l_byteaInitFromMem ( l_uint8 *data, size_t size );
+LEPT_DLL extern L_BYTEA * l_byteaInitFromFile ( const char *fname );
+LEPT_DLL extern L_BYTEA * l_byteaInitFromStream ( FILE *fp );
+LEPT_DLL extern L_BYTEA * l_byteaCopy ( L_BYTEA *bas, l_int32 copyflag );
+LEPT_DLL extern void l_byteaDestroy ( L_BYTEA **pba );
+LEPT_DLL extern size_t l_byteaGetSize ( L_BYTEA *ba );
+LEPT_DLL extern l_uint8 * l_byteaGetData ( L_BYTEA *ba, size_t *psize );
+LEPT_DLL extern l_uint8 * l_byteaCopyData ( L_BYTEA *ba, size_t *psize );
+LEPT_DLL extern l_int32 l_byteaAppendData ( L_BYTEA *ba, l_uint8 *newdata, size_t newbytes );
+LEPT_DLL extern l_int32 l_byteaAppendString ( L_BYTEA *ba, char *str );
+LEPT_DLL extern l_int32 l_byteaJoin ( L_BYTEA *ba1, L_BYTEA **pba2 );
+LEPT_DLL extern l_int32 l_byteaSplit ( L_BYTEA *ba1, size_t splitloc, L_BYTEA **pba2 );
+LEPT_DLL extern l_int32 l_byteaFindEachSequence ( L_BYTEA *ba, l_uint8 *sequence, l_int32 seqlen, L_DNA **pda );
+LEPT_DLL extern l_int32 l_byteaWrite ( const char *fname, L_BYTEA *ba, size_t startloc, size_t endloc );
+LEPT_DLL extern l_int32 l_byteaWriteStream ( FILE *fp, L_BYTEA *ba, size_t startloc, size_t endloc );
+LEPT_DLL extern CCBORDA * ccbaCreate ( PIX *pixs, l_int32 n );
+LEPT_DLL extern void ccbaDestroy ( CCBORDA **pccba );
+LEPT_DLL extern CCBORD * ccbCreate ( PIX *pixs );
+LEPT_DLL extern void ccbDestroy ( CCBORD **pccb );
+LEPT_DLL extern l_int32 ccbaAddCcb ( CCBORDA *ccba, CCBORD *ccb );
+LEPT_DLL extern l_int32 ccbaGetCount ( CCBORDA *ccba );
+LEPT_DLL extern CCBORD * ccbaGetCcb ( CCBORDA *ccba, l_int32 index );
+LEPT_DLL extern CCBORDA * pixGetAllCCBorders ( PIX *pixs );
+LEPT_DLL extern CCBORD * pixGetCCBorders ( PIX *pixs, BOX *box );
+LEPT_DLL extern PTAA * pixGetOuterBordersPtaa ( PIX *pixs );
+LEPT_DLL extern PTA * pixGetOuterBorderPta ( PIX *pixs, BOX *box );
+LEPT_DLL extern l_int32 pixGetOuterBorder ( CCBORD *ccb, PIX *pixs, BOX *box );
+LEPT_DLL extern l_int32 pixGetHoleBorder ( CCBORD *ccb, PIX *pixs, BOX *box, l_int32 xs, l_int32 ys );
+LEPT_DLL extern l_int32 findNextBorderPixel ( l_int32 w, l_int32 h, l_uint32 *data, l_int32 wpl, l_int32 px, l_int32 py, l_int32 *pqpos, l_int32 *pnpx, l_int32 *pnpy );
+LEPT_DLL extern void locateOutsideSeedPixel ( l_int32 fpx, l_int32 fpy, l_int32 spx, l_int32 spy, l_int32 *pxs, l_int32 *pys );
+LEPT_DLL extern l_int32 ccbaGenerateGlobalLocs ( CCBORDA *ccba );
+LEPT_DLL extern l_int32 ccbaGenerateStepChains ( CCBORDA *ccba );
+LEPT_DLL extern l_int32 ccbaStepChainsToPixCoords ( CCBORDA *ccba, l_int32 coordtype );
+LEPT_DLL extern l_int32 ccbaGenerateSPGlobalLocs ( CCBORDA *ccba, l_int32 ptsflag );
+LEPT_DLL extern l_int32 ccbaGenerateSinglePath ( CCBORDA *ccba );
+LEPT_DLL extern PTA * getCutPathForHole ( PIX *pix, PTA *pta, BOX *boxinner, l_int32 *pdir, l_int32 *plen );
+LEPT_DLL extern PIX * ccbaDisplayBorder ( CCBORDA *ccba );
+LEPT_DLL extern PIX * ccbaDisplaySPBorder ( CCBORDA *ccba );
+LEPT_DLL extern PIX * ccbaDisplayImage1 ( CCBORDA *ccba );
+LEPT_DLL extern PIX * ccbaDisplayImage2 ( CCBORDA *ccba );
+LEPT_DLL extern l_int32 ccbaWrite ( const char *filename, CCBORDA *ccba );
+LEPT_DLL extern l_int32 ccbaWriteStream ( FILE *fp, CCBORDA *ccba );
+LEPT_DLL extern CCBORDA * ccbaRead ( const char *filename );
+LEPT_DLL extern CCBORDA * ccbaReadStream ( FILE *fp );
+LEPT_DLL extern l_int32 ccbaWriteSVG ( const char *filename, CCBORDA *ccba );
+LEPT_DLL extern char * ccbaWriteSVGString ( const char *filename, CCBORDA *ccba );
+LEPT_DLL extern PIXA * pixaThinConnected ( PIXA *pixas, l_int32 type, l_int32 connectivity, l_int32 maxiters );
+LEPT_DLL extern PIX * pixThinConnected ( PIX *pixs, l_int32 type, l_int32 connectivity, l_int32 maxiters );
+LEPT_DLL extern PIX * pixThinConnectedBySet ( PIX *pixs, l_int32 type, SELA *sela, l_int32 maxiters );
+LEPT_DLL extern SELA * selaMakeThinSets ( l_int32 index, l_int32 debug );
+LEPT_DLL extern l_int32 jbCorrelation ( const char *dirin, l_float32 thresh, l_float32 weight, l_int32 components, const char *rootname, l_int32 firstpage, l_int32 npages, l_int32 renderflag );
+LEPT_DLL extern l_int32 jbRankHaus ( const char *dirin, l_int32 size, l_float32 rank, l_int32 components, const char *rootname, l_int32 firstpage, l_int32 npages, l_int32 renderflag );
+LEPT_DLL extern JBCLASSER * jbWordsInTextlines ( const char *dirin, l_int32 reduction, l_int32 maxwidth, l_int32 maxheight, l_float32 thresh, l_float32 weight, NUMA **pnatl, l_int32 firstpage, l_int32 npages );
+LEPT_DLL extern l_int32 pixGetWordsInTextlines ( PIX *pixs, l_int32 reduction, l_int32 minwidth, l_int32 minheight, l_int32 maxwidth, l_int32 maxheight, BOXA **pboxad, PIXA **ppixad, NUMA **pnai );
+LEPT_DLL extern l_int32 pixGetWordBoxesInTextlines ( PIX *pixs, l_int32 reduction, l_int32 minwidth, l_int32 minheight, l_int32 maxwidth, l_int32 maxheight, BOXA **pboxad, NUMA **pnai );
+LEPT_DLL extern NUMAA * boxaExtractSortedPattern ( BOXA *boxa, NUMA *na );
+LEPT_DLL extern l_int32 numaaCompareImagesByBoxes ( NUMAA *naa1, NUMAA *naa2, l_int32 nperline, l_int32 nreq, l_int32 maxshiftx, l_int32 maxshifty, l_int32 delx, l_int32 dely, l_int32 *psame, l_int32 debugflag );
+LEPT_DLL extern l_int32 pixColorContent ( PIX *pixs, l_int32 rwhite, l_int32 gwhite, l_int32 bwhite, l_int32 mingray, PIX **ppixr, PIX **ppixg, PIX **ppixb );
+LEPT_DLL extern PIX * pixColorMagnitude ( PIX *pixs, l_int32 rwhite, l_int32 gwhite, l_int32 bwhite, l_int32 type );
+LEPT_DLL extern PIX * pixMaskOverColorPixels ( PIX *pixs, l_int32 threshdiff, l_int32 mindist );
+LEPT_DLL extern PIX * pixMaskOverColorRange ( PIX *pixs, l_int32 rmin, l_int32 rmax, l_int32 gmin, l_int32 gmax, l_int32 bmin, l_int32 bmax );
+LEPT_DLL extern l_int32 pixColorFraction ( PIX *pixs, l_int32 darkthresh, l_int32 lightthresh, l_int32 diffthresh, l_int32 factor, l_float32 *ppixfract, l_float32 *pcolorfract );
+LEPT_DLL extern l_int32 pixFindColorRegions ( PIX *pixs, PIX *pixm, l_int32 factor, l_int32 lightthresh, l_int32 darkthresh, l_int32 mindiff, l_int32 colordiff, l_float32 edgefract, l_float32 *pcolorfract, PIX **pcolormask1, PIX **pcolormask2, PIXA *pixadb );
+LEPT_DLL extern l_int32 pixNumSignificantGrayColors ( PIX *pixs, l_int32 darkthresh, l_int32 lightthresh, l_float32 minfract, l_int32 factor, l_int32 *pncolors );
+LEPT_DLL extern l_int32 pixColorsForQuantization ( PIX *pixs, l_int32 thresh, l_int32 *pncolors, l_int32 *piscolor, l_int32 debug );
+LEPT_DLL extern l_int32 pixNumColors ( PIX *pixs, l_int32 factor, l_int32 *pncolors );
+LEPT_DLL extern l_int32 pixGetMostPopulatedColors ( PIX *pixs, l_int32 sigbits, l_int32 factor, l_int32 ncolors, l_uint32 **parray, PIXCMAP **pcmap );
+LEPT_DLL extern PIX * pixSimpleColorQuantize ( PIX *pixs, l_int32 sigbits, l_int32 factor, l_int32 ncolors );
+LEPT_DLL extern NUMA * pixGetRGBHistogram ( PIX *pixs, l_int32 sigbits, l_int32 factor );
+LEPT_DLL extern l_int32 makeRGBIndexTables ( l_uint32 **prtab, l_uint32 **pgtab, l_uint32 **pbtab, l_int32 sigbits );
+LEPT_DLL extern l_int32 getRGBFromIndex ( l_uint32 index, l_int32 sigbits, l_int32 *prval, l_int32 *pgval, l_int32 *pbval );
+LEPT_DLL extern l_int32 pixHasHighlightRed ( PIX *pixs, l_int32 factor, l_float32 fract, l_float32 fthresh, l_int32 *phasred, l_float32 *pratio, PIX **ppixdb );
+LEPT_DLL extern PIX * pixColorGrayRegions ( PIX *pixs, BOXA *boxa, l_int32 type, l_int32 thresh, l_int32 rval, l_int32 gval, l_int32 bval );
+LEPT_DLL extern l_int32 pixColorGray ( PIX *pixs, BOX *box, l_int32 type, l_int32 thresh, l_int32 rval, l_int32 gval, l_int32 bval );
+LEPT_DLL extern PIX * pixColorGrayMasked ( PIX *pixs, PIX *pixm, l_int32 type, l_int32 thresh, l_int32 rval, l_int32 gval, l_int32 bval );
+LEPT_DLL extern PIX * pixSnapColor ( PIX *pixd, PIX *pixs, l_uint32 srcval, l_uint32 dstval, l_int32 diff );
+LEPT_DLL extern PIX * pixSnapColorCmap ( PIX *pixd, PIX *pixs, l_uint32 srcval, l_uint32 dstval, l_int32 diff );
+LEPT_DLL extern PIX * pixLinearMapToTargetColor ( PIX *pixd, PIX *pixs, l_uint32 srcval, l_uint32 dstval );
+LEPT_DLL extern l_int32 pixelLinearMapToTargetColor ( l_uint32 scolor, l_uint32 srcmap, l_uint32 dstmap, l_uint32 *pdcolor );
+LEPT_DLL extern PIX * pixShiftByComponent ( PIX *pixd, PIX *pixs, l_uint32 srcval, l_uint32 dstval );
+LEPT_DLL extern l_int32 pixelShiftByComponent ( l_int32 rval, l_int32 gval, l_int32 bval, l_uint32 srcval, l_uint32 dstval, l_uint32 *ppixel );
+LEPT_DLL extern l_int32 pixelFractionalShift ( l_int32 rval, l_int32 gval, l_int32 bval, l_float32 fraction, l_uint32 *ppixel );
+LEPT_DLL extern PIXCMAP * pixcmapCreate ( l_int32 depth );
+LEPT_DLL extern PIXCMAP * pixcmapCreateRandom ( l_int32 depth, l_int32 hasblack, l_int32 haswhite );
+LEPT_DLL extern PIXCMAP * pixcmapCreateLinear ( l_int32 d, l_int32 nlevels );
+LEPT_DLL extern PIXCMAP * pixcmapCopy ( PIXCMAP *cmaps );
+LEPT_DLL extern void pixcmapDestroy ( PIXCMAP **pcmap );
+LEPT_DLL extern l_int32 pixcmapAddColor ( PIXCMAP *cmap, l_int32 rval, l_int32 gval, l_int32 bval );
+LEPT_DLL extern l_int32 pixcmapAddRGBA ( PIXCMAP *cmap, l_int32 rval, l_int32 gval, l_int32 bval, l_int32 aval );
+LEPT_DLL extern l_int32 pixcmapAddNewColor ( PIXCMAP *cmap, l_int32 rval, l_int32 gval, l_int32 bval, l_int32 *pindex );
+LEPT_DLL extern l_int32 pixcmapAddNearestColor ( PIXCMAP *cmap, l_int32 rval, l_int32 gval, l_int32 bval, l_int32 *pindex );
+LEPT_DLL extern l_int32 pixcmapUsableColor ( PIXCMAP *cmap, l_int32 rval, l_int32 gval, l_int32 bval, l_int32 *pusable );
+LEPT_DLL extern l_int32 pixcmapAddBlackOrWhite ( PIXCMAP *cmap, l_int32 color, l_int32 *pindex );
+LEPT_DLL extern l_int32 pixcmapSetBlackAndWhite ( PIXCMAP *cmap, l_int32 setblack, l_int32 setwhite );
+LEPT_DLL extern l_int32 pixcmapGetCount ( PIXCMAP *cmap );
+LEPT_DLL extern l_int32 pixcmapGetFreeCount ( PIXCMAP *cmap );
+LEPT_DLL extern l_int32 pixcmapGetDepth ( PIXCMAP *cmap );
+LEPT_DLL extern l_int32 pixcmapGetMinDepth ( PIXCMAP *cmap, l_int32 *pmindepth );
+LEPT_DLL extern l_int32 pixcmapClear ( PIXCMAP *cmap );
+LEPT_DLL extern l_int32 pixcmapGetColor ( PIXCMAP *cmap, l_int32 index, l_int32 *prval, l_int32 *pgval, l_int32 *pbval );
+LEPT_DLL extern l_int32 pixcmapGetColor32 ( PIXCMAP *cmap, l_int32 index, l_uint32 *pval32 );
+LEPT_DLL extern l_int32 pixcmapGetRGBA ( PIXCMAP *cmap, l_int32 index, l_int32 *prval, l_int32 *pgval, l_int32 *pbval, l_int32 *paval );
+LEPT_DLL extern l_int32 pixcmapGetRGBA32 ( PIXCMAP *cmap, l_int32 index, l_uint32 *pval32 );
+LEPT_DLL extern l_int32 pixcmapResetColor ( PIXCMAP *cmap, l_int32 index, l_int32 rval, l_int32 gval, l_int32 bval );
+LEPT_DLL extern l_int32 pixcmapSetAlpha ( PIXCMAP *cmap, l_int32 index, l_int32 aval );
+LEPT_DLL extern l_int32 pixcmapGetIndex ( PIXCMAP *cmap, l_int32 rval, l_int32 gval, l_int32 bval, l_int32 *pindex );
+LEPT_DLL extern l_int32 pixcmapHasColor ( PIXCMAP *cmap, l_int32 *pcolor );
+LEPT_DLL extern l_int32 pixcmapIsOpaque ( PIXCMAP *cmap, l_int32 *popaque );
+LEPT_DLL extern l_int32 pixcmapIsBlackAndWhite ( PIXCMAP *cmap, l_int32 *pblackwhite );
+LEPT_DLL extern l_int32 pixcmapCountGrayColors ( PIXCMAP *cmap, l_int32 *pngray );
+LEPT_DLL extern l_int32 pixcmapGetRankIntensity ( PIXCMAP *cmap, l_float32 rankval, l_int32 *pindex );
+LEPT_DLL extern l_int32 pixcmapGetNearestIndex ( PIXCMAP *cmap, l_int32 rval, l_int32 gval, l_int32 bval, l_int32 *pindex );
+LEPT_DLL extern l_int32 pixcmapGetNearestGrayIndex ( PIXCMAP *cmap, l_int32 val, l_int32 *pindex );
+LEPT_DLL extern l_int32 pixcmapGetDistanceToColor ( PIXCMAP *cmap, l_int32 index, l_int32 rval, l_int32 gval, l_int32 bval, l_int32 *pdist );
+LEPT_DLL extern l_int32 pixcmapGetRangeValues ( PIXCMAP *cmap, l_int32 select, l_int32 *pminval, l_int32 *pmaxval, l_int32 *pminindex, l_int32 *pmaxindex );
+LEPT_DLL extern PIXCMAP * pixcmapGrayToColor ( l_uint32 color );
+LEPT_DLL extern PIXCMAP * pixcmapColorToGray ( PIXCMAP *cmaps, l_float32 rwt, l_float32 gwt, l_float32 bwt );
+LEPT_DLL extern PIXCMAP * pixcmapConvertTo4 ( PIXCMAP *cmaps );
+LEPT_DLL extern PIXCMAP * pixcmapConvertTo8 ( PIXCMAP *cmaps );
+LEPT_DLL extern PIXCMAP * pixcmapRead ( const char *filename );
+LEPT_DLL extern PIXCMAP * pixcmapReadStream ( FILE *fp );
+LEPT_DLL extern PIXCMAP * pixcmapReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 pixcmapWrite ( const char *filename, PIXCMAP *cmap );
+LEPT_DLL extern l_int32 pixcmapWriteStream ( FILE *fp, PIXCMAP *cmap );
+LEPT_DLL extern l_int32 pixcmapWriteMem ( l_uint8 **pdata, size_t *psize, PIXCMAP *cmap );
+LEPT_DLL extern l_int32 pixcmapToArrays ( PIXCMAP *cmap, l_int32 **prmap, l_int32 **pgmap, l_int32 **pbmap, l_int32 **pamap );
+LEPT_DLL extern l_int32 pixcmapToRGBTable ( PIXCMAP *cmap, l_uint32 **ptab, l_int32 *pncolors );
+LEPT_DLL extern l_int32 pixcmapSerializeToMemory ( PIXCMAP *cmap, l_int32 cpc, l_int32 *pncolors, l_uint8 **pdata );
+LEPT_DLL extern PIXCMAP * pixcmapDeserializeFromMemory ( l_uint8 *data, l_int32 cpc, l_int32 ncolors );
+LEPT_DLL extern char * pixcmapConvertToHex ( l_uint8 *data, l_int32 ncolors );
+LEPT_DLL extern l_int32 pixcmapGammaTRC ( PIXCMAP *cmap, l_float32 gamma, l_int32 minval, l_int32 maxval );
+LEPT_DLL extern l_int32 pixcmapContrastTRC ( PIXCMAP *cmap, l_float32 factor );
+LEPT_DLL extern l_int32 pixcmapShiftIntensity ( PIXCMAP *cmap, l_float32 fraction );
+LEPT_DLL extern l_int32 pixcmapShiftByComponent ( PIXCMAP *cmap, l_uint32 srcval, l_uint32 dstval );
+LEPT_DLL extern PIX * pixColorMorph ( PIX *pixs, l_int32 type, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixOctreeColorQuant ( PIX *pixs, l_int32 colors, l_int32 ditherflag );
+LEPT_DLL extern PIX * pixOctreeColorQuantGeneral ( PIX *pixs, l_int32 colors, l_int32 ditherflag, l_float32 validthresh, l_float32 colorthresh );
+LEPT_DLL extern l_int32 makeRGBToIndexTables ( l_uint32 **prtab, l_uint32 **pgtab, l_uint32 **pbtab, l_int32 cqlevels );
+LEPT_DLL extern void getOctcubeIndexFromRGB ( l_int32 rval, l_int32 gval, l_int32 bval, l_uint32 *rtab, l_uint32 *gtab, l_uint32 *btab, l_uint32 *pindex );
+LEPT_DLL extern PIX * pixOctreeQuantByPopulation ( PIX *pixs, l_int32 level, l_int32 ditherflag );
+LEPT_DLL extern PIX * pixOctreeQuantNumColors ( PIX *pixs, l_int32 maxcolors, l_int32 subsample );
+LEPT_DLL extern PIX * pixOctcubeQuantMixedWithGray ( PIX *pixs, l_int32 depth, l_int32 graylevels, l_int32 delta );
+LEPT_DLL extern PIX * pixFixedOctcubeQuant256 ( PIX *pixs, l_int32 ditherflag );
+LEPT_DLL extern PIX * pixFewColorsOctcubeQuant1 ( PIX *pixs, l_int32 level );
+LEPT_DLL extern PIX * pixFewColorsOctcubeQuant2 ( PIX *pixs, l_int32 level, NUMA *na, l_int32 ncolors, l_int32 *pnerrors );
+LEPT_DLL extern PIX * pixFewColorsOctcubeQuantMixed ( PIX *pixs, l_int32 level, l_int32 darkthresh, l_int32 lightthresh, l_int32 diffthresh, l_float32 minfract, l_int32 maxspan );
+LEPT_DLL extern PIX * pixFixedOctcubeQuantGenRGB ( PIX *pixs, l_int32 level );
+LEPT_DLL extern PIX * pixQuantFromCmap ( PIX *pixs, PIXCMAP *cmap, l_int32 mindepth, l_int32 level, l_int32 metric );
+LEPT_DLL extern PIX * pixOctcubeQuantFromCmap ( PIX *pixs, PIXCMAP *cmap, l_int32 mindepth, l_int32 level, l_int32 metric );
+LEPT_DLL extern NUMA * pixOctcubeHistogram ( PIX *pixs, l_int32 level, l_int32 *pncolors );
+LEPT_DLL extern l_int32 * pixcmapToOctcubeLUT ( PIXCMAP *cmap, l_int32 level, l_int32 metric );
+LEPT_DLL extern l_int32 pixRemoveUnusedColors ( PIX *pixs );
+LEPT_DLL extern l_int32 pixNumberOccupiedOctcubes ( PIX *pix, l_int32 level, l_int32 mincount, l_float32 minfract, l_int32 *pncolors );
+LEPT_DLL extern PIX * pixMedianCutQuant ( PIX *pixs, l_int32 ditherflag );
+LEPT_DLL extern PIX * pixMedianCutQuantGeneral ( PIX *pixs, l_int32 ditherflag, l_int32 outdepth, l_int32 maxcolors, l_int32 sigbits, l_int32 maxsub, l_int32 checkbw );
+LEPT_DLL extern PIX * pixMedianCutQuantMixed ( PIX *pixs, l_int32 ncolor, l_int32 ngray, l_int32 darkthresh, l_int32 lightthresh, l_int32 diffthresh );
+LEPT_DLL extern PIX * pixFewColorsMedianCutQuantMixed ( PIX *pixs, l_int32 ncolor, l_int32 ngray, l_int32 maxncolors, l_int32 darkthresh, l_int32 lightthresh, l_int32 diffthresh );
+LEPT_DLL extern l_int32 * pixMedianCutHisto ( PIX *pixs, l_int32 sigbits, l_int32 subsample );
+LEPT_DLL extern PIX * pixColorSegment ( PIX *pixs, l_int32 maxdist, l_int32 maxcolors, l_int32 selsize, l_int32 finalcolors, l_int32 debugflag );
+LEPT_DLL extern PIX * pixColorSegmentCluster ( PIX *pixs, l_int32 maxdist, l_int32 maxcolors, l_int32 debugflag );
+LEPT_DLL extern l_int32 pixAssignToNearestColor ( PIX *pixd, PIX *pixs, PIX *pixm, l_int32 level, l_int32 *countarray );
+LEPT_DLL extern l_int32 pixColorSegmentClean ( PIX *pixs, l_int32 selsize, l_int32 *countarray );
+LEPT_DLL extern l_int32 pixColorSegmentRemoveColors ( PIX *pixd, PIX *pixs, l_int32 finalcolors );
+LEPT_DLL extern PIX * pixConvertRGBToHSV ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern PIX * pixConvertHSVToRGB ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern l_int32 convertRGBToHSV ( l_int32 rval, l_int32 gval, l_int32 bval, l_int32 *phval, l_int32 *psval, l_int32 *pvval );
+LEPT_DLL extern l_int32 convertHSVToRGB ( l_int32 hval, l_int32 sval, l_int32 vval, l_int32 *prval, l_int32 *pgval, l_int32 *pbval );
+LEPT_DLL extern l_int32 pixcmapConvertRGBToHSV ( PIXCMAP *cmap );
+LEPT_DLL extern l_int32 pixcmapConvertHSVToRGB ( PIXCMAP *cmap );
+LEPT_DLL extern PIX * pixConvertRGBToHue ( PIX *pixs );
+LEPT_DLL extern PIX * pixConvertRGBToSaturation ( PIX *pixs );
+LEPT_DLL extern PIX * pixConvertRGBToValue ( PIX *pixs );
+LEPT_DLL extern PIX * pixMakeRangeMaskHS ( PIX *pixs, l_int32 huecenter, l_int32 huehw, l_int32 satcenter, l_int32 sathw, l_int32 regionflag );
+LEPT_DLL extern PIX * pixMakeRangeMaskHV ( PIX *pixs, l_int32 huecenter, l_int32 huehw, l_int32 valcenter, l_int32 valhw, l_int32 regionflag );
+LEPT_DLL extern PIX * pixMakeRangeMaskSV ( PIX *pixs, l_int32 satcenter, l_int32 sathw, l_int32 valcenter, l_int32 valhw, l_int32 regionflag );
+LEPT_DLL extern PIX * pixMakeHistoHS ( PIX *pixs, l_int32 factor, NUMA **pnahue, NUMA **pnasat );
+LEPT_DLL extern PIX * pixMakeHistoHV ( PIX *pixs, l_int32 factor, NUMA **pnahue, NUMA **pnaval );
+LEPT_DLL extern PIX * pixMakeHistoSV ( PIX *pixs, l_int32 factor, NUMA **pnasat, NUMA **pnaval );
+LEPT_DLL extern l_int32 pixFindHistoPeaksHSV ( PIX *pixs, l_int32 type, l_int32 width, l_int32 height, l_int32 npeaks, l_float32 erasefactor, PTA **ppta, NUMA **pnatot, PIXA **ppixa );
+LEPT_DLL extern PIX * displayHSVColorRange ( l_int32 hval, l_int32 sval, l_int32 vval, l_int32 huehw, l_int32 sathw, l_int32 nsamp, l_int32 factor );
+LEPT_DLL extern PIX * pixConvertRGBToYUV ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern PIX * pixConvertYUVToRGB ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern l_int32 convertRGBToYUV ( l_int32 rval, l_int32 gval, l_int32 bval, l_int32 *pyval, l_int32 *puval, l_int32 *pvval );
+LEPT_DLL extern l_int32 convertYUVToRGB ( l_int32 yval, l_int32 uval, l_int32 vval, l_int32 *prval, l_int32 *pgval, l_int32 *pbval );
+LEPT_DLL extern l_int32 pixcmapConvertRGBToYUV ( PIXCMAP *cmap );
+LEPT_DLL extern l_int32 pixcmapConvertYUVToRGB ( PIXCMAP *cmap );
+LEPT_DLL extern FPIXA * pixConvertRGBToXYZ ( PIX *pixs );
+LEPT_DLL extern PIX * fpixaConvertXYZToRGB ( FPIXA *fpixa );
+LEPT_DLL extern l_int32 convertRGBToXYZ ( l_int32 rval, l_int32 gval, l_int32 bval, l_float32 *pfxval, l_float32 *pfyval, l_float32 *pfzval );
+LEPT_DLL extern l_int32 convertXYZToRGB ( l_float32 fxval, l_float32 fyval, l_float32 fzval, l_int32 blackout, l_int32 *prval, l_int32 *pgval, l_int32 *pbval );
+LEPT_DLL extern FPIXA * fpixaConvertXYZToLAB ( FPIXA *fpixas );
+LEPT_DLL extern FPIXA * fpixaConvertLABToXYZ ( FPIXA *fpixas );
+LEPT_DLL extern l_int32 convertXYZToLAB ( l_float32 xval, l_float32 yval, l_float32 zval, l_float32 *plval, l_float32 *paval, l_float32 *pbval );
+LEPT_DLL extern l_int32 convertLABToXYZ ( l_float32 lval, l_float32 aval, l_float32 bval, l_float32 *pxval, l_float32 *pyval, l_float32 *pzval );
+LEPT_DLL extern FPIXA * pixConvertRGBToLAB ( PIX *pixs );
+LEPT_DLL extern PIX * fpixaConvertLABToRGB ( FPIXA *fpixa );
+LEPT_DLL extern l_int32 convertRGBToLAB ( l_int32 rval, l_int32 gval, l_int32 bval, l_float32 *pflval, l_float32 *pfaval, l_float32 *pfbval );
+LEPT_DLL extern l_int32 convertLABToRGB ( l_float32 flval, l_float32 faval, l_float32 fbval, l_int32 *prval, l_int32 *pgval, l_int32 *pbval );
+LEPT_DLL extern l_int32 pixEqual ( PIX *pix1, PIX *pix2, l_int32 *psame );
+LEPT_DLL extern l_int32 pixEqualWithAlpha ( PIX *pix1, PIX *pix2, l_int32 use_alpha, l_int32 *psame );
+LEPT_DLL extern l_int32 pixEqualWithCmap ( PIX *pix1, PIX *pix2, l_int32 *psame );
+LEPT_DLL extern l_int32 cmapEqual ( PIXCMAP *cmap1, PIXCMAP *cmap2, l_int32 ncomps, l_int32 *psame );
+LEPT_DLL extern l_int32 pixUsesCmapColor ( PIX *pixs, l_int32 *pcolor );
+LEPT_DLL extern l_int32 pixCorrelationBinary ( PIX *pix1, PIX *pix2, l_float32 *pval );
+LEPT_DLL extern PIX * pixDisplayDiffBinary ( PIX *pix1, PIX *pix2 );
+LEPT_DLL extern l_int32 pixCompareBinary ( PIX *pix1, PIX *pix2, l_int32 comptype, l_float32 *pfract, PIX **ppixdiff );
+LEPT_DLL extern l_int32 pixCompareGrayOrRGB ( PIX *pix1, PIX *pix2, l_int32 comptype, l_int32 plottype, l_int32 *psame, l_float32 *pdiff, l_float32 *prmsdiff, PIX **ppixdiff );
+LEPT_DLL extern l_int32 pixCompareGray ( PIX *pix1, PIX *pix2, l_int32 comptype, l_int32 plottype, l_int32 *psame, l_float32 *pdiff, l_float32 *prmsdiff, PIX **ppixdiff );
+LEPT_DLL extern l_int32 pixCompareRGB ( PIX *pix1, PIX *pix2, l_int32 comptype, l_int32 plottype, l_int32 *psame, l_float32 *pdiff, l_float32 *prmsdiff, PIX **ppixdiff );
+LEPT_DLL extern l_int32 pixCompareTiled ( PIX *pix1, PIX *pix2, l_int32 sx, l_int32 sy, l_int32 type, PIX **ppixdiff );
+LEPT_DLL extern NUMA * pixCompareRankDifference ( PIX *pix1, PIX *pix2, l_int32 factor );
+LEPT_DLL extern l_int32 pixTestForSimilarity ( PIX *pix1, PIX *pix2, l_int32 factor, l_int32 mindiff, l_float32 maxfract, l_float32 maxave, l_int32 *psimilar, l_int32 printstats );
+LEPT_DLL extern l_int32 pixGetDifferenceStats ( PIX *pix1, PIX *pix2, l_int32 factor, l_int32 mindiff, l_float32 *pfractdiff, l_float32 *pavediff, l_int32 printstats );
+LEPT_DLL extern NUMA * pixGetDifferenceHistogram ( PIX *pix1, PIX *pix2, l_int32 factor );
+LEPT_DLL extern l_int32 pixGetPerceptualDiff ( PIX *pixs1, PIX *pixs2, l_int32 sampling, l_int32 dilation, l_int32 mindiff, l_float32 *pfract, PIX **ppixdiff1, PIX **ppixdiff2 );
+LEPT_DLL extern l_int32 pixGetPSNR ( PIX *pix1, PIX *pix2, l_int32 factor, l_float32 *ppsnr );
+LEPT_DLL extern l_int32 pixaComparePhotoRegionsByHisto ( PIXA *pixa, l_float32 minratio, l_float32 textthresh, l_int32 factor, l_int32 nx, l_int32 ny, l_float32 simthresh, NUMA **pnai, l_float32 **pscores, PIX **ppixd );
+LEPT_DLL extern l_int32 pixComparePhotoRegionsByHisto ( PIX *pix1, PIX *pix2, BOX *box1, BOX *box2, l_float32 minratio, l_int32 factor, l_int32 nx, l_int32 ny, l_float32 *pscore, l_int32 debugflag );
+LEPT_DLL extern l_int32 pixGenPhotoHistos ( PIX *pixs, BOX *box, l_int32 factor, l_float32 thresh, l_int32 nx, l_int32 ny, NUMAA **pnaa, l_int32 *pw, l_int32 *ph, l_int32 debugflag );
+LEPT_DLL extern PIX * pixPadToCenterCentroid ( PIX *pixs, l_int32 factor );
+LEPT_DLL extern l_int32 pixCentroid8 ( PIX *pixs, l_int32 factor, l_float32 *pcx, l_float32 *pcy );
+LEPT_DLL extern l_int32 pixDecideIfPhotoImage ( PIX *pix, l_int32 factor, l_int32 nx, l_int32 ny, l_float32 thresh, NUMAA **pnaa, PIXA *pixadebug );
+LEPT_DLL extern l_int32 compareTilesByHisto ( NUMAA *naa1, NUMAA *naa2, l_float32 minratio, l_int32 w1, l_int32 h1, l_int32 w2, l_int32 h2, l_float32 *pscore, PIXA *pixadebug );
+LEPT_DLL extern l_int32 pixCompareGrayByHisto ( PIX *pix1, PIX *pix2, BOX *box1, BOX *box2, l_float32 minratio, l_int32 maxgray, l_int32 factor, l_int32 nx, l_int32 ny, l_float32 *pscore, l_int32 debugflag );
+LEPT_DLL extern l_int32 pixCropAlignedToCentroid ( PIX *pix1, PIX *pix2, l_int32 factor, BOX **pbox1, BOX **pbox2 );
+LEPT_DLL extern l_uint8 * l_compressGrayHistograms ( NUMAA *naa, l_int32 w, l_int32 h, size_t *psize );
+LEPT_DLL extern NUMAA * l_uncompressGrayHistograms ( l_uint8 *bytea, size_t size, l_int32 *pw, l_int32 *ph );
+LEPT_DLL extern l_int32 pixCompareWithTranslation ( PIX *pix1, PIX *pix2, l_int32 thresh, l_int32 *pdelx, l_int32 *pdely, l_float32 *pscore, l_int32 debugflag );
+LEPT_DLL extern l_int32 pixBestCorrelation ( PIX *pix1, PIX *pix2, l_int32 area1, l_int32 area2, l_int32 etransx, l_int32 etransy, l_int32 maxshift, l_int32 *tab8, l_int32 *pdelx, l_int32 *pdely, l_float32 *pscore, l_int32 debugflag );
+LEPT_DLL extern BOXA * pixConnComp ( PIX *pixs, PIXA **ppixa, l_int32 connectivity );
+LEPT_DLL extern BOXA * pixConnCompPixa ( PIX *pixs, PIXA **ppixa, l_int32 connectivity );
+LEPT_DLL extern BOXA * pixConnCompBB ( PIX *pixs, l_int32 connectivity );
+LEPT_DLL extern l_int32 pixCountConnComp ( PIX *pixs, l_int32 connectivity, l_int32 *pcount );
+LEPT_DLL extern l_int32 nextOnPixelInRaster ( PIX *pixs, l_int32 xstart, l_int32 ystart, l_int32 *px, l_int32 *py );
+LEPT_DLL extern l_int32 nextOnPixelInRasterLow ( l_uint32 *data, l_int32 w, l_int32 h, l_int32 wpl, l_int32 xstart, l_int32 ystart, l_int32 *px, l_int32 *py );
+LEPT_DLL extern BOX * pixSeedfillBB ( PIX *pixs, L_STACK *stack, l_int32 x, l_int32 y, l_int32 connectivity );
+LEPT_DLL extern BOX * pixSeedfill4BB ( PIX *pixs, L_STACK *stack, l_int32 x, l_int32 y );
+LEPT_DLL extern BOX * pixSeedfill8BB ( PIX *pixs, L_STACK *stack, l_int32 x, l_int32 y );
+LEPT_DLL extern l_int32 pixSeedfill ( PIX *pixs, L_STACK *stack, l_int32 x, l_int32 y, l_int32 connectivity );
+LEPT_DLL extern l_int32 pixSeedfill4 ( PIX *pixs, L_STACK *stack, l_int32 x, l_int32 y );
+LEPT_DLL extern l_int32 pixSeedfill8 ( PIX *pixs, L_STACK *stack, l_int32 x, l_int32 y );
+LEPT_DLL extern l_int32 convertFilesTo1bpp ( const char *dirin, const char *substr, l_int32 upscaling, l_int32 thresh, l_int32 firstpage, l_int32 npages, const char *dirout, l_int32 outformat );
+LEPT_DLL extern PIX * pixBlockconv ( PIX *pix, l_int32 wc, l_int32 hc );
+LEPT_DLL extern PIX * pixBlockconvGray ( PIX *pixs, PIX *pixacc, l_int32 wc, l_int32 hc );
+LEPT_DLL extern PIX * pixBlockconvAccum ( PIX *pixs );
+LEPT_DLL extern PIX * pixBlockconvGrayUnnormalized ( PIX *pixs, l_int32 wc, l_int32 hc );
+LEPT_DLL extern PIX * pixBlockconvTiled ( PIX *pix, l_int32 wc, l_int32 hc, l_int32 nx, l_int32 ny );
+LEPT_DLL extern PIX * pixBlockconvGrayTile ( PIX *pixs, PIX *pixacc, l_int32 wc, l_int32 hc );
+LEPT_DLL extern l_int32 pixWindowedStats ( PIX *pixs, l_int32 wc, l_int32 hc, l_int32 hasborder, PIX **ppixm, PIX **ppixms, FPIX **pfpixv, FPIX **pfpixrv );
+LEPT_DLL extern PIX * pixWindowedMean ( PIX *pixs, l_int32 wc, l_int32 hc, l_int32 hasborder, l_int32 normflag );
+LEPT_DLL extern PIX * pixWindowedMeanSquare ( PIX *pixs, l_int32 wc, l_int32 hc, l_int32 hasborder );
+LEPT_DLL extern l_int32 pixWindowedVariance ( PIX *pixm, PIX *pixms, FPIX **pfpixv, FPIX **pfpixrv );
+LEPT_DLL extern DPIX * pixMeanSquareAccum ( PIX *pixs );
+LEPT_DLL extern PIX * pixBlockrank ( PIX *pixs, PIX *pixacc, l_int32 wc, l_int32 hc, l_float32 rank );
+LEPT_DLL extern PIX * pixBlocksum ( PIX *pixs, PIX *pixacc, l_int32 wc, l_int32 hc );
+LEPT_DLL extern PIX * pixCensusTransform ( PIX *pixs, l_int32 halfsize, PIX *pixacc );
+LEPT_DLL extern PIX * pixConvolve ( PIX *pixs, L_KERNEL *kel, l_int32 outdepth, l_int32 normflag );
+LEPT_DLL extern PIX * pixConvolveSep ( PIX *pixs, L_KERNEL *kelx, L_KERNEL *kely, l_int32 outdepth, l_int32 normflag );
+LEPT_DLL extern PIX * pixConvolveRGB ( PIX *pixs, L_KERNEL *kel );
+LEPT_DLL extern PIX * pixConvolveRGBSep ( PIX *pixs, L_KERNEL *kelx, L_KERNEL *kely );
+LEPT_DLL extern FPIX * fpixConvolve ( FPIX *fpixs, L_KERNEL *kel, l_int32 normflag );
+LEPT_DLL extern FPIX * fpixConvolveSep ( FPIX *fpixs, L_KERNEL *kelx, L_KERNEL *kely, l_int32 normflag );
+LEPT_DLL extern PIX * pixConvolveWithBias ( PIX *pixs, L_KERNEL *kel1, L_KERNEL *kel2, l_int32 force8, l_int32 *pbias );
+LEPT_DLL extern void l_setConvolveSampling ( l_int32 xfact, l_int32 yfact );
+LEPT_DLL extern PIX * pixAddGaussianNoise ( PIX *pixs, l_float32 stdev );
+LEPT_DLL extern l_float32 gaussDistribSampling (  );
+LEPT_DLL extern l_int32 pixCorrelationScore ( PIX *pix1, PIX *pix2, l_int32 area1, l_int32 area2, l_float32 delx, l_float32 dely, l_int32 maxdiffw, l_int32 maxdiffh, l_int32 *tab, l_float32 *pscore );
+LEPT_DLL extern l_int32 pixCorrelationScoreThresholded ( PIX *pix1, PIX *pix2, l_int32 area1, l_int32 area2, l_float32 delx, l_float32 dely, l_int32 maxdiffw, l_int32 maxdiffh, l_int32 *tab, l_int32 *downcount, l_float32 score_threshold );
+LEPT_DLL extern l_int32 pixCorrelationScoreSimple ( PIX *pix1, PIX *pix2, l_int32 area1, l_int32 area2, l_float32 delx, l_float32 dely, l_int32 maxdiffw, l_int32 maxdiffh, l_int32 *tab, l_float32 *pscore );
+LEPT_DLL extern l_int32 pixCorrelationScoreShifted ( PIX *pix1, PIX *pix2, l_int32 area1, l_int32 area2, l_int32 delx, l_int32 dely, l_int32 *tab, l_float32 *pscore );
+LEPT_DLL extern L_DEWARP * dewarpCreate ( PIX *pixs, l_int32 pageno );
+LEPT_DLL extern L_DEWARP * dewarpCreateRef ( l_int32 pageno, l_int32 refpage );
+LEPT_DLL extern void dewarpDestroy ( L_DEWARP **pdew );
+LEPT_DLL extern L_DEWARPA * dewarpaCreate ( l_int32 nptrs, l_int32 sampling, l_int32 redfactor, l_int32 minlines, l_int32 maxdist );
+LEPT_DLL extern L_DEWARPA * dewarpaCreateFromPixacomp ( PIXAC *pixac, l_int32 useboth, l_int32 sampling, l_int32 minlines, l_int32 maxdist );
+LEPT_DLL extern void dewarpaDestroy ( L_DEWARPA **pdewa );
+LEPT_DLL extern l_int32 dewarpaDestroyDewarp ( L_DEWARPA *dewa, l_int32 pageno );
+LEPT_DLL extern l_int32 dewarpaInsertDewarp ( L_DEWARPA *dewa, L_DEWARP *dew );
+LEPT_DLL extern L_DEWARP * dewarpaGetDewarp ( L_DEWARPA *dewa, l_int32 index );
+LEPT_DLL extern l_int32 dewarpaSetCurvatures ( L_DEWARPA *dewa, l_int32 max_linecurv, l_int32 min_diff_linecurv, l_int32 max_diff_linecurv, l_int32 max_edgecurv, l_int32 max_diff_edgecurv, l_int32 max_edgeslope );
+LEPT_DLL extern l_int32 dewarpaUseBothArrays ( L_DEWARPA *dewa, l_int32 useboth );
+LEPT_DLL extern l_int32 dewarpaSetCheckColumns ( L_DEWARPA *dewa, l_int32 check_columns );
+LEPT_DLL extern l_int32 dewarpaSetMaxDistance ( L_DEWARPA *dewa, l_int32 maxdist );
+LEPT_DLL extern L_DEWARP * dewarpRead ( const char *filename );
+LEPT_DLL extern L_DEWARP * dewarpReadStream ( FILE *fp );
+LEPT_DLL extern L_DEWARP * dewarpReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 dewarpWrite ( const char *filename, L_DEWARP *dew );
+LEPT_DLL extern l_int32 dewarpWriteStream ( FILE *fp, L_DEWARP *dew );
+LEPT_DLL extern l_int32 dewarpWriteMem ( l_uint8 **pdata, size_t *psize, L_DEWARP *dew );
+LEPT_DLL extern L_DEWARPA * dewarpaRead ( const char *filename );
+LEPT_DLL extern L_DEWARPA * dewarpaReadStream ( FILE *fp );
+LEPT_DLL extern L_DEWARPA * dewarpaReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 dewarpaWrite ( const char *filename, L_DEWARPA *dewa );
+LEPT_DLL extern l_int32 dewarpaWriteStream ( FILE *fp, L_DEWARPA *dewa );
+LEPT_DLL extern l_int32 dewarpaWriteMem ( l_uint8 **pdata, size_t *psize, L_DEWARPA *dewa );
+LEPT_DLL extern l_int32 dewarpBuildPageModel ( L_DEWARP *dew, const char *debugfile );
+LEPT_DLL extern l_int32 dewarpFindVertDisparity ( L_DEWARP *dew, PTAA *ptaa, l_int32 rotflag );
+LEPT_DLL extern l_int32 dewarpFindHorizDisparity ( L_DEWARP *dew, PTAA *ptaa );
+LEPT_DLL extern PTAA * dewarpGetTextlineCenters ( PIX *pixs, l_int32 debugflag );
+LEPT_DLL extern PTAA * dewarpRemoveShortLines ( PIX *pixs, PTAA *ptaas, l_float32 fract, l_int32 debugflag );
+LEPT_DLL extern l_int32 dewarpFindHorizSlopeDisparity ( L_DEWARP *dew, PIX *pixb, l_float32 fractthresh, l_int32 parity );
+LEPT_DLL extern l_int32 dewarpBuildLineModel ( L_DEWARP *dew, l_int32 opensize, const char *debugfile );
+LEPT_DLL extern l_int32 dewarpaModelStatus ( L_DEWARPA *dewa, l_int32 pageno, l_int32 *pvsuccess, l_int32 *phsuccess );
+LEPT_DLL extern l_int32 dewarpaApplyDisparity ( L_DEWARPA *dewa, l_int32 pageno, PIX *pixs, l_int32 grayin, l_int32 x, l_int32 y, PIX **ppixd, const char *debugfile );
+LEPT_DLL extern l_int32 dewarpaApplyDisparityBoxa ( L_DEWARPA *dewa, l_int32 pageno, PIX *pixs, BOXA *boxas, l_int32 mapdir, l_int32 x, l_int32 y, BOXA **pboxad, const char *debugfile );
+LEPT_DLL extern l_int32 dewarpMinimize ( L_DEWARP *dew );
+LEPT_DLL extern l_int32 dewarpPopulateFullRes ( L_DEWARP *dew, PIX *pix, l_int32 x, l_int32 y );
+LEPT_DLL extern l_int32 dewarpSinglePage ( PIX *pixs, l_int32 thresh, l_int32 adaptive, l_int32 useboth, l_int32 check_columns, PIX **ppixd, L_DEWARPA **pdewa, l_int32 debug );
+LEPT_DLL extern l_int32 dewarpSinglePageInit ( PIX *pixs, l_int32 thresh, l_int32 adaptive, l_int32 useboth, l_int32 check_columns, PIX **ppixb, L_DEWARPA **pdewa );
+LEPT_DLL extern l_int32 dewarpSinglePageRun ( PIX *pixs, PIX *pixb, L_DEWARPA *dewa, PIX **ppixd, l_int32 debug );
+LEPT_DLL extern l_int32 dewarpaListPages ( L_DEWARPA *dewa );
+LEPT_DLL extern l_int32 dewarpaSetValidModels ( L_DEWARPA *dewa, l_int32 notests, l_int32 debug );
+LEPT_DLL extern l_int32 dewarpaInsertRefModels ( L_DEWARPA *dewa, l_int32 notests, l_int32 debug );
+LEPT_DLL extern l_int32 dewarpaStripRefModels ( L_DEWARPA *dewa );
+LEPT_DLL extern l_int32 dewarpaRestoreModels ( L_DEWARPA *dewa );
+LEPT_DLL extern l_int32 dewarpaInfo ( FILE *fp, L_DEWARPA *dewa );
+LEPT_DLL extern l_int32 dewarpaModelStats ( L_DEWARPA *dewa, l_int32 *pnnone, l_int32 *pnvsuccess, l_int32 *pnvvalid, l_int32 *pnhsuccess, l_int32 *pnhvalid, l_int32 *pnref );
+LEPT_DLL extern l_int32 dewarpaShowArrays ( L_DEWARPA *dewa, l_float32 scalefact, l_int32 first, l_int32 last );
+LEPT_DLL extern l_int32 dewarpDebug ( L_DEWARP *dew, const char *subdirs, l_int32 index );
+LEPT_DLL extern l_int32 dewarpShowResults ( L_DEWARPA *dewa, SARRAY *sa, BOXA *boxa, l_int32 firstpage, l_int32 lastpage, const char *pdfout );
+LEPT_DLL extern L_DNA * l_dnaCreate ( l_int32 n );
+LEPT_DLL extern L_DNA * l_dnaCreateFromIArray ( l_int32 *iarray, l_int32 size );
+LEPT_DLL extern L_DNA * l_dnaCreateFromDArray ( l_float64 *darray, l_int32 size, l_int32 copyflag );
+LEPT_DLL extern L_DNA * l_dnaMakeSequence ( l_float64 startval, l_float64 increment, l_int32 size );
+LEPT_DLL extern void l_dnaDestroy ( L_DNA **pda );
+LEPT_DLL extern L_DNA * l_dnaCopy ( L_DNA *da );
+LEPT_DLL extern L_DNA * l_dnaClone ( L_DNA *da );
+LEPT_DLL extern l_int32 l_dnaEmpty ( L_DNA *da );
+LEPT_DLL extern l_int32 l_dnaAddNumber ( L_DNA *da, l_float64 val );
+LEPT_DLL extern l_int32 l_dnaInsertNumber ( L_DNA *da, l_int32 index, l_float64 val );
+LEPT_DLL extern l_int32 l_dnaRemoveNumber ( L_DNA *da, l_int32 index );
+LEPT_DLL extern l_int32 l_dnaReplaceNumber ( L_DNA *da, l_int32 index, l_float64 val );
+LEPT_DLL extern l_int32 l_dnaGetCount ( L_DNA *da );
+LEPT_DLL extern l_int32 l_dnaSetCount ( L_DNA *da, l_int32 newcount );
+LEPT_DLL extern l_int32 l_dnaGetDValue ( L_DNA *da, l_int32 index, l_float64 *pval );
+LEPT_DLL extern l_int32 l_dnaGetIValue ( L_DNA *da, l_int32 index, l_int32 *pival );
+LEPT_DLL extern l_int32 l_dnaSetValue ( L_DNA *da, l_int32 index, l_float64 val );
+LEPT_DLL extern l_int32 l_dnaShiftValue ( L_DNA *da, l_int32 index, l_float64 diff );
+LEPT_DLL extern l_int32 * l_dnaGetIArray ( L_DNA *da );
+LEPT_DLL extern l_float64 * l_dnaGetDArray ( L_DNA *da, l_int32 copyflag );
+LEPT_DLL extern l_int32 l_dnaGetRefcount ( L_DNA *da );
+LEPT_DLL extern l_int32 l_dnaChangeRefcount ( L_DNA *da, l_int32 delta );
+LEPT_DLL extern l_int32 l_dnaGetParameters ( L_DNA *da, l_float64 *pstartx, l_float64 *pdelx );
+LEPT_DLL extern l_int32 l_dnaSetParameters ( L_DNA *da, l_float64 startx, l_float64 delx );
+LEPT_DLL extern l_int32 l_dnaCopyParameters ( L_DNA *dad, L_DNA *das );
+LEPT_DLL extern L_DNA * l_dnaRead ( const char *filename );
+LEPT_DLL extern L_DNA * l_dnaReadStream ( FILE *fp );
+LEPT_DLL extern l_int32 l_dnaWrite ( const char *filename, L_DNA *da );
+LEPT_DLL extern l_int32 l_dnaWriteStream ( FILE *fp, L_DNA *da );
+LEPT_DLL extern L_DNAA * l_dnaaCreate ( l_int32 n );
+LEPT_DLL extern L_DNAA * l_dnaaCreateFull ( l_int32 nptr, l_int32 n );
+LEPT_DLL extern l_int32 l_dnaaTruncate ( L_DNAA *daa );
+LEPT_DLL extern void l_dnaaDestroy ( L_DNAA **pdaa );
+LEPT_DLL extern l_int32 l_dnaaAddDna ( L_DNAA *daa, L_DNA *da, l_int32 copyflag );
+LEPT_DLL extern l_int32 l_dnaaGetCount ( L_DNAA *daa );
+LEPT_DLL extern l_int32 l_dnaaGetDnaCount ( L_DNAA *daa, l_int32 index );
+LEPT_DLL extern l_int32 l_dnaaGetNumberCount ( L_DNAA *daa );
+LEPT_DLL extern L_DNA * l_dnaaGetDna ( L_DNAA *daa, l_int32 index, l_int32 accessflag );
+LEPT_DLL extern l_int32 l_dnaaReplaceDna ( L_DNAA *daa, l_int32 index, L_DNA *da );
+LEPT_DLL extern l_int32 l_dnaaGetValue ( L_DNAA *daa, l_int32 i, l_int32 j, l_float64 *pval );
+LEPT_DLL extern l_int32 l_dnaaAddNumber ( L_DNAA *daa, l_int32 index, l_float64 val );
+LEPT_DLL extern L_DNAA * l_dnaaRead ( const char *filename );
+LEPT_DLL extern L_DNAA * l_dnaaReadStream ( FILE *fp );
+LEPT_DLL extern l_int32 l_dnaaWrite ( const char *filename, L_DNAA *daa );
+LEPT_DLL extern l_int32 l_dnaaWriteStream ( FILE *fp, L_DNAA *daa );
+LEPT_DLL extern l_int32 l_dnaJoin ( L_DNA *dad, L_DNA *das, l_int32 istart, l_int32 iend );
+LEPT_DLL extern L_DNA * l_dnaaFlattenToDna ( L_DNAA *daa );
+LEPT_DLL extern NUMA * l_dnaConvertToNuma ( L_DNA *da );
+LEPT_DLL extern L_DNA * numaConvertToDna ( NUMA *na );
+LEPT_DLL extern L_DNA * l_dnaUnionByAset ( L_DNA *da1, L_DNA *da2 );
+LEPT_DLL extern L_DNA * l_dnaRemoveDupsByAset ( L_DNA *das );
+LEPT_DLL extern L_DNA * l_dnaIntersectionByAset ( L_DNA *da1, L_DNA *da2 );
+LEPT_DLL extern L_ASET * l_asetCreateFromDna ( L_DNA *da );
+LEPT_DLL extern L_DNA * l_dnaDiffAdjValues ( L_DNA *das );
+LEPT_DLL extern L_DNAHASH * l_dnaHashCreate ( l_int32 nbuckets, l_int32 initsize );
+LEPT_DLL extern void l_dnaHashDestroy ( L_DNAHASH **pdahash );
+LEPT_DLL extern l_int32 l_dnaHashGetCount ( L_DNAHASH *dahash );
+LEPT_DLL extern l_int32 l_dnaHashGetTotalCount ( L_DNAHASH *dahash );
+LEPT_DLL extern L_DNA * l_dnaHashGetDna ( L_DNAHASH *dahash, l_uint64 key, l_int32 copyflag );
+LEPT_DLL extern l_int32 l_dnaHashAdd ( L_DNAHASH *dahash, l_uint64 key, l_float64 value );
+LEPT_DLL extern L_DNAHASH * l_dnaHashCreateFromDna ( L_DNA *da );
+LEPT_DLL extern l_int32 l_dnaRemoveDupsByHash ( L_DNA *das, L_DNA **pdad, L_DNAHASH **pdahash );
+LEPT_DLL extern l_int32 l_dnaMakeHistoByHash ( L_DNA *das, L_DNAHASH **pdahash, L_DNA **pdav, L_DNA **pdac );
+LEPT_DLL extern L_DNA * l_dnaIntersectionByHash ( L_DNA *da1, L_DNA *da2 );
+LEPT_DLL extern l_int32 l_dnaFindValByHash ( L_DNA *da, L_DNAHASH *dahash, l_float64 val, l_int32 *pindex );
+LEPT_DLL extern PIX * pixMorphDwa_2 ( PIX *pixd, PIX *pixs, l_int32 operation, char *selname );
+LEPT_DLL extern PIX * pixFMorphopGen_2 ( PIX *pixd, PIX *pixs, l_int32 operation, char *selname );
+LEPT_DLL extern l_int32 fmorphopgen_low_2 ( l_uint32 *datad, l_int32 w, l_int32 h, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_int32 index );
+LEPT_DLL extern PIX * pixSobelEdgeFilter ( PIX *pixs, l_int32 orientflag );
+LEPT_DLL extern PIX * pixTwoSidedEdgeFilter ( PIX *pixs, l_int32 orientflag );
+LEPT_DLL extern l_int32 pixMeasureEdgeSmoothness ( PIX *pixs, l_int32 side, l_int32 minjump, l_int32 minreversal, l_float32 *pjpl, l_float32 *pjspl, l_float32 *prpl, const char *debugfile );
+LEPT_DLL extern NUMA * pixGetEdgeProfile ( PIX *pixs, l_int32 side, const char *debugfile );
+LEPT_DLL extern l_int32 pixGetLastOffPixelInRun ( PIX *pixs, l_int32 x, l_int32 y, l_int32 direction, l_int32 *ploc );
+LEPT_DLL extern l_int32 pixGetLastOnPixelInRun ( PIX *pixs, l_int32 x, l_int32 y, l_int32 direction, l_int32 *ploc );
+LEPT_DLL extern char * encodeBase64 ( l_uint8 *inarray, l_int32 insize, l_int32 *poutsize );
+LEPT_DLL extern l_uint8 * decodeBase64 ( const char *inarray, l_int32 insize, l_int32 *poutsize );
+LEPT_DLL extern char * encodeAscii85 ( l_uint8 *inarray, l_int32 insize, l_int32 *poutsize );
+LEPT_DLL extern l_uint8 * decodeAscii85 ( char *inarray, l_int32 insize, l_int32 *poutsize );
+LEPT_DLL extern char * reformatPacked64 ( char *inarray, l_int32 insize, l_int32 leadspace, l_int32 linechars, l_int32 addquotes, l_int32 *poutsize );
+LEPT_DLL extern PIX * pixGammaTRC ( PIX *pixd, PIX *pixs, l_float32 gamma, l_int32 minval, l_int32 maxval );
+LEPT_DLL extern PIX * pixGammaTRCMasked ( PIX *pixd, PIX *pixs, PIX *pixm, l_float32 gamma, l_int32 minval, l_int32 maxval );
+LEPT_DLL extern PIX * pixGammaTRCWithAlpha ( PIX *pixd, PIX *pixs, l_float32 gamma, l_int32 minval, l_int32 maxval );
+LEPT_DLL extern NUMA * numaGammaTRC ( l_float32 gamma, l_int32 minval, l_int32 maxval );
+LEPT_DLL extern PIX * pixContrastTRC ( PIX *pixd, PIX *pixs, l_float32 factor );
+LEPT_DLL extern PIX * pixContrastTRCMasked ( PIX *pixd, PIX *pixs, PIX *pixm, l_float32 factor );
+LEPT_DLL extern NUMA * numaContrastTRC ( l_float32 factor );
+LEPT_DLL extern PIX * pixEqualizeTRC ( PIX *pixd, PIX *pixs, l_float32 fract, l_int32 factor );
+LEPT_DLL extern NUMA * numaEqualizeTRC ( PIX *pix, l_float32 fract, l_int32 factor );
+LEPT_DLL extern l_int32 pixTRCMap ( PIX *pixs, PIX *pixm, NUMA *na );
+LEPT_DLL extern PIX * pixUnsharpMasking ( PIX *pixs, l_int32 halfwidth, l_float32 fract );
+LEPT_DLL extern PIX * pixUnsharpMaskingGray ( PIX *pixs, l_int32 halfwidth, l_float32 fract );
+LEPT_DLL extern PIX * pixUnsharpMaskingFast ( PIX *pixs, l_int32 halfwidth, l_float32 fract, l_int32 direction );
+LEPT_DLL extern PIX * pixUnsharpMaskingGrayFast ( PIX *pixs, l_int32 halfwidth, l_float32 fract, l_int32 direction );
+LEPT_DLL extern PIX * pixUnsharpMaskingGray1D ( PIX *pixs, l_int32 halfwidth, l_float32 fract, l_int32 direction );
+LEPT_DLL extern PIX * pixUnsharpMaskingGray2D ( PIX *pixs, l_int32 halfwidth, l_float32 fract );
+LEPT_DLL extern PIX * pixModifyHue ( PIX *pixd, PIX *pixs, l_float32 fract );
+LEPT_DLL extern PIX * pixModifySaturation ( PIX *pixd, PIX *pixs, l_float32 fract );
+LEPT_DLL extern l_int32 pixMeasureSaturation ( PIX *pixs, l_int32 factor, l_float32 *psat );
+LEPT_DLL extern PIX * pixModifyBrightness ( PIX *pixd, PIX *pixs, l_float32 fract );
+LEPT_DLL extern PIX * pixColorShiftRGB ( PIX *pixs, l_float32 rfract, l_float32 gfract, l_float32 bfract );
+LEPT_DLL extern PIX * pixMultConstantColor ( PIX *pixs, l_float32 rfact, l_float32 gfact, l_float32 bfact );
+LEPT_DLL extern PIX * pixMultMatrixColor ( PIX *pixs, L_KERNEL *kel );
+LEPT_DLL extern PIX * pixHalfEdgeByBandpass ( PIX *pixs, l_int32 sm1h, l_int32 sm1v, l_int32 sm2h, l_int32 sm2v );
+LEPT_DLL extern l_int32 fhmtautogen ( SELA *sela, l_int32 fileindex, const char *filename );
+LEPT_DLL extern l_int32 fhmtautogen1 ( SELA *sela, l_int32 fileindex, const char *filename );
+LEPT_DLL extern l_int32 fhmtautogen2 ( SELA *sela, l_int32 fileindex, const char *filename );
+LEPT_DLL extern PIX * pixHMTDwa_1 ( PIX *pixd, PIX *pixs, const char *selname );
+LEPT_DLL extern PIX * pixFHMTGen_1 ( PIX *pixd, PIX *pixs, const char *selname );
+LEPT_DLL extern l_int32 fhmtgen_low_1 ( l_uint32 *datad, l_int32 w, l_int32 h, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_int32 index );
+LEPT_DLL extern l_int32 pixItalicWords ( PIX *pixs, BOXA *boxaw, PIX *pixw, BOXA **pboxa, l_int32 debugflag );
+LEPT_DLL extern l_int32 pixOrientDetect ( PIX *pixs, l_float32 *pupconf, l_float32 *pleftconf, l_int32 mincount, l_int32 debug );
+LEPT_DLL extern l_int32 makeOrientDecision ( l_float32 upconf, l_float32 leftconf, l_float32 minupconf, l_float32 minratio, l_int32 *porient, l_int32 debug );
+LEPT_DLL extern l_int32 pixUpDownDetect ( PIX *pixs, l_float32 *pconf, l_int32 mincount, l_int32 debug );
+LEPT_DLL extern l_int32 pixUpDownDetectGeneral ( PIX *pixs, l_float32 *pconf, l_int32 mincount, l_int32 npixels, l_int32 debug );
+LEPT_DLL extern l_int32 pixOrientDetectDwa ( PIX *pixs, l_float32 *pupconf, l_float32 *pleftconf, l_int32 mincount, l_int32 debug );
+LEPT_DLL extern l_int32 pixUpDownDetectDwa ( PIX *pixs, l_float32 *pconf, l_int32 mincount, l_int32 debug );
+LEPT_DLL extern l_int32 pixUpDownDetectGeneralDwa ( PIX *pixs, l_float32 *pconf, l_int32 mincount, l_int32 npixels, l_int32 debug );
+LEPT_DLL extern l_int32 pixMirrorDetect ( PIX *pixs, l_float32 *pconf, l_int32 mincount, l_int32 debug );
+LEPT_DLL extern l_int32 pixMirrorDetectDwa ( PIX *pixs, l_float32 *pconf, l_int32 mincount, l_int32 debug );
+LEPT_DLL extern PIX * pixFlipFHMTGen ( PIX *pixd, PIX *pixs, char *selname );
+LEPT_DLL extern l_int32 fmorphautogen ( SELA *sela, l_int32 fileindex, const char *filename );
+LEPT_DLL extern l_int32 fmorphautogen1 ( SELA *sela, l_int32 fileindex, const char *filename );
+LEPT_DLL extern l_int32 fmorphautogen2 ( SELA *sela, l_int32 fileindex, const char *filename );
+LEPT_DLL extern PIX * pixMorphDwa_1 ( PIX *pixd, PIX *pixs, l_int32 operation, char *selname );
+LEPT_DLL extern PIX * pixFMorphopGen_1 ( PIX *pixd, PIX *pixs, l_int32 operation, char *selname );
+LEPT_DLL extern l_int32 fmorphopgen_low_1 ( l_uint32 *datad, l_int32 w, l_int32 h, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_int32 index );
+LEPT_DLL extern FPIX * fpixCreate ( l_int32 width, l_int32 height );
+LEPT_DLL extern FPIX * fpixCreateTemplate ( FPIX *fpixs );
+LEPT_DLL extern FPIX * fpixClone ( FPIX *fpix );
+LEPT_DLL extern FPIX * fpixCopy ( FPIX *fpixd, FPIX *fpixs );
+LEPT_DLL extern l_int32 fpixResizeImageData ( FPIX *fpixd, FPIX *fpixs );
+LEPT_DLL extern void fpixDestroy ( FPIX **pfpix );
+LEPT_DLL extern l_int32 fpixGetDimensions ( FPIX *fpix, l_int32 *pw, l_int32 *ph );
+LEPT_DLL extern l_int32 fpixSetDimensions ( FPIX *fpix, l_int32 w, l_int32 h );
+LEPT_DLL extern l_int32 fpixGetWpl ( FPIX *fpix );
+LEPT_DLL extern l_int32 fpixSetWpl ( FPIX *fpix, l_int32 wpl );
+LEPT_DLL extern l_int32 fpixGetRefcount ( FPIX *fpix );
+LEPT_DLL extern l_int32 fpixChangeRefcount ( FPIX *fpix, l_int32 delta );
+LEPT_DLL extern l_int32 fpixGetResolution ( FPIX *fpix, l_int32 *pxres, l_int32 *pyres );
+LEPT_DLL extern l_int32 fpixSetResolution ( FPIX *fpix, l_int32 xres, l_int32 yres );
+LEPT_DLL extern l_int32 fpixCopyResolution ( FPIX *fpixd, FPIX *fpixs );
+LEPT_DLL extern l_float32 * fpixGetData ( FPIX *fpix );
+LEPT_DLL extern l_int32 fpixSetData ( FPIX *fpix, l_float32 *data );
+LEPT_DLL extern l_int32 fpixGetPixel ( FPIX *fpix, l_int32 x, l_int32 y, l_float32 *pval );
+LEPT_DLL extern l_int32 fpixSetPixel ( FPIX *fpix, l_int32 x, l_int32 y, l_float32 val );
+LEPT_DLL extern FPIXA * fpixaCreate ( l_int32 n );
+LEPT_DLL extern FPIXA * fpixaCopy ( FPIXA *fpixa, l_int32 copyflag );
+LEPT_DLL extern void fpixaDestroy ( FPIXA **pfpixa );
+LEPT_DLL extern l_int32 fpixaAddFPix ( FPIXA *fpixa, FPIX *fpix, l_int32 copyflag );
+LEPT_DLL extern l_int32 fpixaGetCount ( FPIXA *fpixa );
+LEPT_DLL extern l_int32 fpixaChangeRefcount ( FPIXA *fpixa, l_int32 delta );
+LEPT_DLL extern FPIX * fpixaGetFPix ( FPIXA *fpixa, l_int32 index, l_int32 accesstype );
+LEPT_DLL extern l_int32 fpixaGetFPixDimensions ( FPIXA *fpixa, l_int32 index, l_int32 *pw, l_int32 *ph );
+LEPT_DLL extern l_float32 * fpixaGetData ( FPIXA *fpixa, l_int32 index );
+LEPT_DLL extern l_int32 fpixaGetPixel ( FPIXA *fpixa, l_int32 index, l_int32 x, l_int32 y, l_float32 *pval );
+LEPT_DLL extern l_int32 fpixaSetPixel ( FPIXA *fpixa, l_int32 index, l_int32 x, l_int32 y, l_float32 val );
+LEPT_DLL extern DPIX * dpixCreate ( l_int32 width, l_int32 height );
+LEPT_DLL extern DPIX * dpixCreateTemplate ( DPIX *dpixs );
+LEPT_DLL extern DPIX * dpixClone ( DPIX *dpix );
+LEPT_DLL extern DPIX * dpixCopy ( DPIX *dpixd, DPIX *dpixs );
+LEPT_DLL extern l_int32 dpixResizeImageData ( DPIX *dpixd, DPIX *dpixs );
+LEPT_DLL extern void dpixDestroy ( DPIX **pdpix );
+LEPT_DLL extern l_int32 dpixGetDimensions ( DPIX *dpix, l_int32 *pw, l_int32 *ph );
+LEPT_DLL extern l_int32 dpixSetDimensions ( DPIX *dpix, l_int32 w, l_int32 h );
+LEPT_DLL extern l_int32 dpixGetWpl ( DPIX *dpix );
+LEPT_DLL extern l_int32 dpixSetWpl ( DPIX *dpix, l_int32 wpl );
+LEPT_DLL extern l_int32 dpixGetRefcount ( DPIX *dpix );
+LEPT_DLL extern l_int32 dpixChangeRefcount ( DPIX *dpix, l_int32 delta );
+LEPT_DLL extern l_int32 dpixGetResolution ( DPIX *dpix, l_int32 *pxres, l_int32 *pyres );
+LEPT_DLL extern l_int32 dpixSetResolution ( DPIX *dpix, l_int32 xres, l_int32 yres );
+LEPT_DLL extern l_int32 dpixCopyResolution ( DPIX *dpixd, DPIX *dpixs );
+LEPT_DLL extern l_float64 * dpixGetData ( DPIX *dpix );
+LEPT_DLL extern l_int32 dpixSetData ( DPIX *dpix, l_float64 *data );
+LEPT_DLL extern l_int32 dpixGetPixel ( DPIX *dpix, l_int32 x, l_int32 y, l_float64 *pval );
+LEPT_DLL extern l_int32 dpixSetPixel ( DPIX *dpix, l_int32 x, l_int32 y, l_float64 val );
+LEPT_DLL extern FPIX * fpixRead ( const char *filename );
+LEPT_DLL extern FPIX * fpixReadStream ( FILE *fp );
+LEPT_DLL extern FPIX * fpixReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 fpixWrite ( const char *filename, FPIX *fpix );
+LEPT_DLL extern l_int32 fpixWriteStream ( FILE *fp, FPIX *fpix );
+LEPT_DLL extern l_int32 fpixWriteMem ( l_uint8 **pdata, size_t *psize, FPIX *fpix );
+LEPT_DLL extern FPIX * fpixEndianByteSwap ( FPIX *fpixd, FPIX *fpixs );
+LEPT_DLL extern DPIX * dpixRead ( const char *filename );
+LEPT_DLL extern DPIX * dpixReadStream ( FILE *fp );
+LEPT_DLL extern DPIX * dpixReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 dpixWrite ( const char *filename, DPIX *dpix );
+LEPT_DLL extern l_int32 dpixWriteStream ( FILE *fp, DPIX *dpix );
+LEPT_DLL extern l_int32 dpixWriteMem ( l_uint8 **pdata, size_t *psize, DPIX *dpix );
+LEPT_DLL extern DPIX * dpixEndianByteSwap ( DPIX *dpixd, DPIX *dpixs );
+LEPT_DLL extern l_int32 fpixPrintStream ( FILE *fp, FPIX *fpix, l_int32 factor );
+LEPT_DLL extern FPIX * pixConvertToFPix ( PIX *pixs, l_int32 ncomps );
+LEPT_DLL extern DPIX * pixConvertToDPix ( PIX *pixs, l_int32 ncomps );
+LEPT_DLL extern PIX * fpixConvertToPix ( FPIX *fpixs, l_int32 outdepth, l_int32 negvals, l_int32 errorflag );
+LEPT_DLL extern PIX * fpixDisplayMaxDynamicRange ( FPIX *fpixs );
+LEPT_DLL extern DPIX * fpixConvertToDPix ( FPIX *fpix );
+LEPT_DLL extern PIX * dpixConvertToPix ( DPIX *dpixs, l_int32 outdepth, l_int32 negvals, l_int32 errorflag );
+LEPT_DLL extern FPIX * dpixConvertToFPix ( DPIX *dpix );
+LEPT_DLL extern l_int32 fpixGetMin ( FPIX *fpix, l_float32 *pminval, l_int32 *pxminloc, l_int32 *pyminloc );
+LEPT_DLL extern l_int32 fpixGetMax ( FPIX *fpix, l_float32 *pmaxval, l_int32 *pxmaxloc, l_int32 *pymaxloc );
+LEPT_DLL extern l_int32 dpixGetMin ( DPIX *dpix, l_float64 *pminval, l_int32 *pxminloc, l_int32 *pyminloc );
+LEPT_DLL extern l_int32 dpixGetMax ( DPIX *dpix, l_float64 *pmaxval, l_int32 *pxmaxloc, l_int32 *pymaxloc );
+LEPT_DLL extern FPIX * fpixScaleByInteger ( FPIX *fpixs, l_int32 factor );
+LEPT_DLL extern DPIX * dpixScaleByInteger ( DPIX *dpixs, l_int32 factor );
+LEPT_DLL extern FPIX * fpixLinearCombination ( FPIX *fpixd, FPIX *fpixs1, FPIX *fpixs2, l_float32 a, l_float32 b );
+LEPT_DLL extern l_int32 fpixAddMultConstant ( FPIX *fpix, l_float32 addc, l_float32 multc );
+LEPT_DLL extern DPIX * dpixLinearCombination ( DPIX *dpixd, DPIX *dpixs1, DPIX *dpixs2, l_float32 a, l_float32 b );
+LEPT_DLL extern l_int32 dpixAddMultConstant ( DPIX *dpix, l_float64 addc, l_float64 multc );
+LEPT_DLL extern l_int32 fpixSetAllArbitrary ( FPIX *fpix, l_float32 inval );
+LEPT_DLL extern l_int32 dpixSetAllArbitrary ( DPIX *dpix, l_float64 inval );
+LEPT_DLL extern FPIX * fpixAddBorder ( FPIX *fpixs, l_int32 left, l_int32 right, l_int32 top, l_int32 bot );
+LEPT_DLL extern FPIX * fpixRemoveBorder ( FPIX *fpixs, l_int32 left, l_int32 right, l_int32 top, l_int32 bot );
+LEPT_DLL extern FPIX * fpixAddMirroredBorder ( FPIX *fpixs, l_int32 left, l_int32 right, l_int32 top, l_int32 bot );
+LEPT_DLL extern FPIX * fpixAddContinuedBorder ( FPIX *fpixs, l_int32 left, l_int32 right, l_int32 top, l_int32 bot );
+LEPT_DLL extern FPIX * fpixAddSlopeBorder ( FPIX *fpixs, l_int32 left, l_int32 right, l_int32 top, l_int32 bot );
+LEPT_DLL extern l_int32 fpixRasterop ( FPIX *fpixd, l_int32 dx, l_int32 dy, l_int32 dw, l_int32 dh, FPIX *fpixs, l_int32 sx, l_int32 sy );
+LEPT_DLL extern FPIX * fpixRotateOrth ( FPIX *fpixs, l_int32 quads );
+LEPT_DLL extern FPIX * fpixRotate180 ( FPIX *fpixd, FPIX *fpixs );
+LEPT_DLL extern FPIX * fpixRotate90 ( FPIX *fpixs, l_int32 direction );
+LEPT_DLL extern FPIX * fpixFlipLR ( FPIX *fpixd, FPIX *fpixs );
+LEPT_DLL extern FPIX * fpixFlipTB ( FPIX *fpixd, FPIX *fpixs );
+LEPT_DLL extern FPIX * fpixAffinePta ( FPIX *fpixs, PTA *ptad, PTA *ptas, l_int32 border, l_float32 inval );
+LEPT_DLL extern FPIX * fpixAffine ( FPIX *fpixs, l_float32 *vc, l_float32 inval );
+LEPT_DLL extern FPIX * fpixProjectivePta ( FPIX *fpixs, PTA *ptad, PTA *ptas, l_int32 border, l_float32 inval );
+LEPT_DLL extern FPIX * fpixProjective ( FPIX *fpixs, l_float32 *vc, l_float32 inval );
+LEPT_DLL extern l_int32 linearInterpolatePixelFloat ( l_float32 *datas, l_int32 w, l_int32 h, l_float32 x, l_float32 y, l_float32 inval, l_float32 *pval );
+LEPT_DLL extern PIX * fpixThresholdToPix ( FPIX *fpix, l_float32 thresh );
+LEPT_DLL extern FPIX * pixComponentFunction ( PIX *pix, l_float32 rnum, l_float32 gnum, l_float32 bnum, l_float32 rdenom, l_float32 gdenom, l_float32 bdenom );
+LEPT_DLL extern PIX * pixReadStreamGif ( FILE *fp );
+LEPT_DLL extern l_int32 pixWriteStreamGif ( FILE *fp, PIX *pix );
+LEPT_DLL extern PIX * pixReadMemGif ( const l_uint8 *cdata, size_t size );
+LEPT_DLL extern l_int32 pixWriteMemGif ( l_uint8 **pdata, size_t *psize, PIX *pix );
+LEPT_DLL extern GPLOT * gplotCreate ( const char *rootname, l_int32 outformat, const char *title, const char *xlabel, const char *ylabel );
+LEPT_DLL extern void gplotDestroy ( GPLOT **pgplot );
+LEPT_DLL extern l_int32 gplotAddPlot ( GPLOT *gplot, NUMA *nax, NUMA *nay, l_int32 plotstyle, const char *plottitle );
+LEPT_DLL extern l_int32 gplotSetScaling ( GPLOT *gplot, l_int32 scaling );
+LEPT_DLL extern l_int32 gplotMakeOutput ( GPLOT *gplot );
+LEPT_DLL extern l_int32 gplotGenCommandFile ( GPLOT *gplot );
+LEPT_DLL extern l_int32 gplotGenDataFiles ( GPLOT *gplot );
+LEPT_DLL extern l_int32 gplotSimple1 ( NUMA *na, l_int32 outformat, const char *outroot, const char *title );
+LEPT_DLL extern l_int32 gplotSimple2 ( NUMA *na1, NUMA *na2, l_int32 outformat, const char *outroot, const char *title );
+LEPT_DLL extern l_int32 gplotSimpleN ( NUMAA *naa, l_int32 outformat, const char *outroot, const char *title );
+LEPT_DLL extern l_int32 gplotSimpleXY1 ( NUMA *nax, NUMA *nay, l_int32 plotstyle, l_int32 outformat, const char *outroot, const char *title );
+LEPT_DLL extern l_int32 gplotSimpleXY2 ( NUMA *nax, NUMA *nay1, NUMA *nay2, l_int32 plotstyle, l_int32 outformat, const char *outroot, const char *title );
+LEPT_DLL extern l_int32 gplotSimpleXYN ( NUMA *nax, NUMAA *naay, l_int32 plotstyle, l_int32 outformat, const char *outroot, const char *title );
+LEPT_DLL extern GPLOT * gplotRead ( const char *filename );
+LEPT_DLL extern l_int32 gplotWrite ( const char *filename, GPLOT *gplot );
+LEPT_DLL extern PTA * generatePtaLine ( l_int32 x1, l_int32 y1, l_int32 x2, l_int32 y2 );
+LEPT_DLL extern PTA * generatePtaWideLine ( l_int32 x1, l_int32 y1, l_int32 x2, l_int32 y2, l_int32 width );
+LEPT_DLL extern PTA * generatePtaBox ( BOX *box, l_int32 width );
+LEPT_DLL extern PTA * generatePtaBoxa ( BOXA *boxa, l_int32 width, l_int32 removedups );
+LEPT_DLL extern PTA * generatePtaHashBox ( BOX *box, l_int32 spacing, l_int32 width, l_int32 orient, l_int32 outline );
+LEPT_DLL extern PTA * generatePtaHashBoxa ( BOXA *boxa, l_int32 spacing, l_int32 width, l_int32 orient, l_int32 outline, l_int32 removedups );
+LEPT_DLL extern PTAA * generatePtaaBoxa ( BOXA *boxa );
+LEPT_DLL extern PTAA * generatePtaaHashBoxa ( BOXA *boxa, l_int32 spacing, l_int32 width, l_int32 orient, l_int32 outline );
+LEPT_DLL extern PTA * generatePtaPolyline ( PTA *ptas, l_int32 width, l_int32 closeflag, l_int32 removedups );
+LEPT_DLL extern PTA * generatePtaGrid ( l_int32 w, l_int32 h, l_int32 nx, l_int32 ny, l_int32 width );
+LEPT_DLL extern PTA * convertPtaLineTo4cc ( PTA *ptas );
+LEPT_DLL extern PTA * generatePtaFilledCircle ( l_int32 radius );
+LEPT_DLL extern PTA * generatePtaFilledSquare ( l_int32 side );
+LEPT_DLL extern PTA * generatePtaLineFromPt ( l_int32 x, l_int32 y, l_float64 length, l_float64 radang );
+LEPT_DLL extern l_int32 locatePtRadially ( l_int32 xr, l_int32 yr, l_float64 dist, l_float64 radang, l_float64 *px, l_float64 *py );
+LEPT_DLL extern l_int32 pixRenderPlotFromNuma ( PIX **ppix, NUMA *na, l_int32 plotloc, l_int32 linewidth, l_int32 max, l_uint32 color );
+LEPT_DLL extern PTA * makePlotPtaFromNuma ( NUMA *na, l_int32 size, l_int32 plotloc, l_int32 linewidth, l_int32 max );
+LEPT_DLL extern l_int32 pixRenderPlotFromNumaGen ( PIX **ppix, NUMA *na, l_int32 orient, l_int32 linewidth, l_int32 refpos, l_int32 max, l_int32 drawref, l_uint32 color );
+LEPT_DLL extern PTA * makePlotPtaFromNumaGen ( NUMA *na, l_int32 orient, l_int32 linewidth, l_int32 refpos, l_int32 max, l_int32 drawref );
+LEPT_DLL extern l_int32 pixRenderPta ( PIX *pix, PTA *pta, l_int32 op );
+LEPT_DLL extern l_int32 pixRenderPtaArb ( PIX *pix, PTA *pta, l_uint8 rval, l_uint8 gval, l_uint8 bval );
+LEPT_DLL extern l_int32 pixRenderPtaBlend ( PIX *pix, PTA *pta, l_uint8 rval, l_uint8 gval, l_uint8 bval, l_float32 fract );
+LEPT_DLL extern l_int32 pixRenderLine ( PIX *pix, l_int32 x1, l_int32 y1, l_int32 x2, l_int32 y2, l_int32 width, l_int32 op );
+LEPT_DLL extern l_int32 pixRenderLineArb ( PIX *pix, l_int32 x1, l_int32 y1, l_int32 x2, l_int32 y2, l_int32 width, l_uint8 rval, l_uint8 gval, l_uint8 bval );
+LEPT_DLL extern l_int32 pixRenderLineBlend ( PIX *pix, l_int32 x1, l_int32 y1, l_int32 x2, l_int32 y2, l_int32 width, l_uint8 rval, l_uint8 gval, l_uint8 bval, l_float32 fract );
+LEPT_DLL extern l_int32 pixRenderBox ( PIX *pix, BOX *box, l_int32 width, l_int32 op );
+LEPT_DLL extern l_int32 pixRenderBoxArb ( PIX *pix, BOX *box, l_int32 width, l_uint8 rval, l_uint8 gval, l_uint8 bval );
+LEPT_DLL extern l_int32 pixRenderBoxBlend ( PIX *pix, BOX *box, l_int32 width, l_uint8 rval, l_uint8 gval, l_uint8 bval, l_float32 fract );
+LEPT_DLL extern l_int32 pixRenderBoxa ( PIX *pix, BOXA *boxa, l_int32 width, l_int32 op );
+LEPT_DLL extern l_int32 pixRenderBoxaArb ( PIX *pix, BOXA *boxa, l_int32 width, l_uint8 rval, l_uint8 gval, l_uint8 bval );
+LEPT_DLL extern l_int32 pixRenderBoxaBlend ( PIX *pix, BOXA *boxa, l_int32 width, l_uint8 rval, l_uint8 gval, l_uint8 bval, l_float32 fract, l_int32 removedups );
+LEPT_DLL extern l_int32 pixRenderHashBox ( PIX *pix, BOX *box, l_int32 spacing, l_int32 width, l_int32 orient, l_int32 outline, l_int32 op );
+LEPT_DLL extern l_int32 pixRenderHashBoxArb ( PIX *pix, BOX *box, l_int32 spacing, l_int32 width, l_int32 orient, l_int32 outline, l_int32 rval, l_int32 gval, l_int32 bval );
+LEPT_DLL extern l_int32 pixRenderHashBoxBlend ( PIX *pix, BOX *box, l_int32 spacing, l_int32 width, l_int32 orient, l_int32 outline, l_int32 rval, l_int32 gval, l_int32 bval, l_float32 fract );
+LEPT_DLL extern l_int32 pixRenderHashMaskArb ( PIX *pix, PIX *pixm, l_int32 x, l_int32 y, l_int32 spacing, l_int32 width, l_int32 orient, l_int32 outline, l_int32 rval, l_int32 gval, l_int32 bval );
+LEPT_DLL extern l_int32 pixRenderHashBoxa ( PIX *pix, BOXA *boxa, l_int32 spacing, l_int32 width, l_int32 orient, l_int32 outline, l_int32 op );
+LEPT_DLL extern l_int32 pixRenderHashBoxaArb ( PIX *pix, BOXA *boxa, l_int32 spacing, l_int32 width, l_int32 orient, l_int32 outline, l_int32 rval, l_int32 gval, l_int32 bval );
+LEPT_DLL extern l_int32 pixRenderHashBoxaBlend ( PIX *pix, BOXA *boxa, l_int32 spacing, l_int32 width, l_int32 orient, l_int32 outline, l_int32 rval, l_int32 gval, l_int32 bval, l_float32 fract );
+LEPT_DLL extern l_int32 pixRenderPolyline ( PIX *pix, PTA *ptas, l_int32 width, l_int32 op, l_int32 closeflag );
+LEPT_DLL extern l_int32 pixRenderPolylineArb ( PIX *pix, PTA *ptas, l_int32 width, l_uint8 rval, l_uint8 gval, l_uint8 bval, l_int32 closeflag );
+LEPT_DLL extern l_int32 pixRenderPolylineBlend ( PIX *pix, PTA *ptas, l_int32 width, l_uint8 rval, l_uint8 gval, l_uint8 bval, l_float32 fract, l_int32 closeflag, l_int32 removedups );
+LEPT_DLL extern l_int32 pixRenderGridArb ( PIX *pix, l_int32 nx, l_int32 ny, l_int32 width, l_uint8 rval, l_uint8 gval, l_uint8 bval );
+LEPT_DLL extern PIX * pixRenderRandomCmapPtaa ( PIX *pix, PTAA *ptaa, l_int32 polyflag, l_int32 width, l_int32 closeflag );
+LEPT_DLL extern PIX * pixRenderPolygon ( PTA *ptas, l_int32 width, l_int32 *pxmin, l_int32 *pymin );
+LEPT_DLL extern PIX * pixFillPolygon ( PIX *pixs, PTA *pta, l_int32 xmin, l_int32 ymin );
+LEPT_DLL extern PIX * pixRenderContours ( PIX *pixs, l_int32 startval, l_int32 incr, l_int32 outdepth );
+LEPT_DLL extern PIX * fpixAutoRenderContours ( FPIX *fpix, l_int32 ncontours );
+LEPT_DLL extern PIX * fpixRenderContours ( FPIX *fpixs, l_float32 incr, l_float32 proxim );
+LEPT_DLL extern PTA * pixGeneratePtaBoundary ( PIX *pixs, l_int32 width );
+LEPT_DLL extern PIX * pixErodeGray ( PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixDilateGray ( PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixOpenGray ( PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixCloseGray ( PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixErodeGray3 ( PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixDilateGray3 ( PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixOpenGray3 ( PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixCloseGray3 ( PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixDitherToBinary ( PIX *pixs );
+LEPT_DLL extern PIX * pixDitherToBinarySpec ( PIX *pixs, l_int32 lowerclip, l_int32 upperclip );
+LEPT_DLL extern PIX * pixThresholdToBinary ( PIX *pixs, l_int32 thresh );
+LEPT_DLL extern PIX * pixVarThresholdToBinary ( PIX *pixs, PIX *pixg );
+LEPT_DLL extern PIX * pixAdaptThresholdToBinary ( PIX *pixs, PIX *pixm, l_float32 gamma );
+LEPT_DLL extern PIX * pixAdaptThresholdToBinaryGen ( PIX *pixs, PIX *pixm, l_float32 gamma, l_int32 blackval, l_int32 whiteval, l_int32 thresh );
+LEPT_DLL extern PIX * pixGenerateMaskByValue ( PIX *pixs, l_int32 val, l_int32 usecmap );
+LEPT_DLL extern PIX * pixGenerateMaskByBand ( PIX *pixs, l_int32 lower, l_int32 upper, l_int32 inband, l_int32 usecmap );
+LEPT_DLL extern PIX * pixDitherTo2bpp ( PIX *pixs, l_int32 cmapflag );
+LEPT_DLL extern PIX * pixDitherTo2bppSpec ( PIX *pixs, l_int32 lowerclip, l_int32 upperclip, l_int32 cmapflag );
+LEPT_DLL extern PIX * pixThresholdTo2bpp ( PIX *pixs, l_int32 nlevels, l_int32 cmapflag );
+LEPT_DLL extern PIX * pixThresholdTo4bpp ( PIX *pixs, l_int32 nlevels, l_int32 cmapflag );
+LEPT_DLL extern PIX * pixThresholdOn8bpp ( PIX *pixs, l_int32 nlevels, l_int32 cmapflag );
+LEPT_DLL extern PIX * pixThresholdGrayArb ( PIX *pixs, const char *edgevals, l_int32 outdepth, l_int32 use_average, l_int32 setblack, l_int32 setwhite );
+LEPT_DLL extern l_int32 * makeGrayQuantIndexTable ( l_int32 nlevels );
+LEPT_DLL extern l_int32 * makeGrayQuantTargetTable ( l_int32 nlevels, l_int32 depth );
+LEPT_DLL extern l_int32 makeGrayQuantTableArb ( NUMA *na, l_int32 outdepth, l_int32 **ptab, PIXCMAP **pcmap );
+LEPT_DLL extern l_int32 makeGrayQuantColormapArb ( PIX *pixs, l_int32 *tab, l_int32 outdepth, PIXCMAP **pcmap );
+LEPT_DLL extern PIX * pixGenerateMaskByBand32 ( PIX *pixs, l_uint32 refval, l_int32 delm, l_int32 delp, l_float32 fractm, l_float32 fractp );
+LEPT_DLL extern PIX * pixGenerateMaskByDiscr32 ( PIX *pixs, l_uint32 refval1, l_uint32 refval2, l_int32 distflag );
+LEPT_DLL extern PIX * pixGrayQuantFromHisto ( PIX *pixd, PIX *pixs, PIX *pixm, l_float32 minfract, l_int32 maxsize );
+LEPT_DLL extern PIX * pixGrayQuantFromCmap ( PIX *pixs, PIXCMAP *cmap, l_int32 mindepth );
+LEPT_DLL extern void ditherToBinaryLow ( l_uint32 *datad, l_int32 w, l_int32 h, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_uint32 *bufs1, l_uint32 *bufs2, l_int32 lowerclip, l_int32 upperclip );
+LEPT_DLL extern void ditherToBinaryLineLow ( l_uint32 *lined, l_int32 w, l_uint32 *bufs1, l_uint32 *bufs2, l_int32 lowerclip, l_int32 upperclip, l_int32 lastlineflag );
+LEPT_DLL extern void thresholdToBinaryLow ( l_uint32 *datad, l_int32 w, l_int32 h, l_int32 wpld, l_uint32 *datas, l_int32 d, l_int32 wpls, l_int32 thresh );
+LEPT_DLL extern void thresholdToBinaryLineLow ( l_uint32 *lined, l_int32 w, l_uint32 *lines, l_int32 d, l_int32 thresh );
+LEPT_DLL extern void ditherTo2bppLow ( l_uint32 *datad, l_int32 w, l_int32 h, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_uint32 *bufs1, l_uint32 *bufs2, l_int32 *tabval, l_int32 *tab38, l_int32 *tab14 );
+LEPT_DLL extern void ditherTo2bppLineLow ( l_uint32 *lined, l_int32 w, l_uint32 *bufs1, l_uint32 *bufs2, l_int32 *tabval, l_int32 *tab38, l_int32 *tab14, l_int32 lastlineflag );
+LEPT_DLL extern l_int32 make8To2DitherTables ( l_int32 **ptabval, l_int32 **ptab38, l_int32 **ptab14, l_int32 cliptoblack, l_int32 cliptowhite );
+LEPT_DLL extern void thresholdTo2bppLow ( l_uint32 *datad, l_int32 h, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_int32 *tab );
+LEPT_DLL extern void thresholdTo4bppLow ( l_uint32 *datad, l_int32 h, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_int32 *tab );
+LEPT_DLL extern L_HEAP * lheapCreate ( l_int32 nalloc, l_int32 direction );
+LEPT_DLL extern void lheapDestroy ( L_HEAP **plh, l_int32 freeflag );
+LEPT_DLL extern l_int32 lheapAdd ( L_HEAP *lh, void *item );
+LEPT_DLL extern void * lheapRemove ( L_HEAP *lh );
+LEPT_DLL extern l_int32 lheapGetCount ( L_HEAP *lh );
+LEPT_DLL extern l_int32 lheapSwapUp ( L_HEAP *lh, l_int32 index );
+LEPT_DLL extern l_int32 lheapSwapDown ( L_HEAP *lh );
+LEPT_DLL extern l_int32 lheapSort ( L_HEAP *lh );
+LEPT_DLL extern l_int32 lheapSortStrictOrder ( L_HEAP *lh );
+LEPT_DLL extern l_int32 lheapPrint ( FILE *fp, L_HEAP *lh );
+LEPT_DLL extern JBCLASSER * jbRankHausInit ( l_int32 components, l_int32 maxwidth, l_int32 maxheight, l_int32 size, l_float32 rank );
+LEPT_DLL extern JBCLASSER * jbCorrelationInit ( l_int32 components, l_int32 maxwidth, l_int32 maxheight, l_float32 thresh, l_float32 weightfactor );
+LEPT_DLL extern JBCLASSER * jbCorrelationInitWithoutComponents ( l_int32 components, l_int32 maxwidth, l_int32 maxheight, l_float32 thresh, l_float32 weightfactor );
+LEPT_DLL extern l_int32 jbAddPages ( JBCLASSER *classer, SARRAY *safiles );
+LEPT_DLL extern l_int32 jbAddPage ( JBCLASSER *classer, PIX *pixs );
+LEPT_DLL extern l_int32 jbAddPageComponents ( JBCLASSER *classer, PIX *pixs, BOXA *boxas, PIXA *pixas );
+LEPT_DLL extern l_int32 jbClassifyRankHaus ( JBCLASSER *classer, BOXA *boxa, PIXA *pixas );
+LEPT_DLL extern l_int32 pixHaustest ( PIX *pix1, PIX *pix2, PIX *pix3, PIX *pix4, l_float32 delx, l_float32 dely, l_int32 maxdiffw, l_int32 maxdiffh );
+LEPT_DLL extern l_int32 pixRankHaustest ( PIX *pix1, PIX *pix2, PIX *pix3, PIX *pix4, l_float32 delx, l_float32 dely, l_int32 maxdiffw, l_int32 maxdiffh, l_int32 area1, l_int32 area3, l_float32 rank, l_int32 *tab8 );
+LEPT_DLL extern l_int32 jbClassifyCorrelation ( JBCLASSER *classer, BOXA *boxa, PIXA *pixas );
+LEPT_DLL extern l_int32 jbGetComponents ( PIX *pixs, l_int32 components, l_int32 maxwidth, l_int32 maxheight, BOXA **pboxad, PIXA **ppixad );
+LEPT_DLL extern l_int32 pixWordMaskByDilation ( PIX *pixs, l_int32 maxdil, PIX **ppixm, l_int32 *psize );
+LEPT_DLL extern l_int32 pixWordBoxesByDilation ( PIX *pixs, l_int32 maxdil, l_int32 minwidth, l_int32 minheight, l_int32 maxwidth, l_int32 maxheight, BOXA **pboxa, l_int32 *psize );
+LEPT_DLL extern PIXA * jbAccumulateComposites ( PIXAA *pixaa, NUMA **pna, PTA **pptat );
+LEPT_DLL extern PIXA * jbTemplatesFromComposites ( PIXA *pixac, NUMA *na );
+LEPT_DLL extern JBCLASSER * jbClasserCreate ( l_int32 method, l_int32 components );
+LEPT_DLL extern void jbClasserDestroy ( JBCLASSER **pclasser );
+LEPT_DLL extern JBDATA * jbDataSave ( JBCLASSER *classer );
+LEPT_DLL extern void jbDataDestroy ( JBDATA **pdata );
+LEPT_DLL extern l_int32 jbDataWrite ( const char *rootout, JBDATA *jbdata );
+LEPT_DLL extern JBDATA * jbDataRead ( const char *rootname );
+LEPT_DLL extern PIXA * jbDataRender ( JBDATA *data, l_int32 debugflag );
+LEPT_DLL extern l_int32 jbGetULCorners ( JBCLASSER *classer, PIX *pixs, BOXA *boxa );
+LEPT_DLL extern l_int32 jbGetLLCorners ( JBCLASSER *classer );
+LEPT_DLL extern l_int32 readHeaderJp2k ( const char *filename, l_int32 *pw, l_int32 *ph, l_int32 *pbps, l_int32 *pspp );
+LEPT_DLL extern l_int32 freadHeaderJp2k ( FILE *fp, l_int32 *pw, l_int32 *ph, l_int32 *pbps, l_int32 *pspp );
+LEPT_DLL extern l_int32 readHeaderMemJp2k ( const l_uint8 *data, size_t size, l_int32 *pw, l_int32 *ph, l_int32 *pbps, l_int32 *pspp );
+LEPT_DLL extern l_int32 fgetJp2kResolution ( FILE *fp, l_int32 *pxres, l_int32 *pyres );
+LEPT_DLL extern PIX * pixReadJp2k ( const char *filename, l_uint32 reduction, BOX *box, l_int32 hint, l_int32 debug );
+LEPT_DLL extern PIX * pixReadStreamJp2k ( FILE *fp, l_uint32 reduction, BOX *box, l_int32 hint, l_int32 debug );
+LEPT_DLL extern l_int32 pixWriteJp2k ( const char *filename, PIX *pix, l_int32 quality, l_int32 nlevels, l_int32 hint, l_int32 debug );
+LEPT_DLL extern l_int32 pixWriteStreamJp2k ( FILE *fp, PIX *pix, l_int32 quality, l_int32 nlevels, l_int32 hint, l_int32 debug );
+LEPT_DLL extern PIX * pixReadMemJp2k ( const l_uint8 *data, size_t size, l_uint32 reduction, BOX *box, l_int32 hint, l_int32 debug );
+LEPT_DLL extern l_int32 pixWriteMemJp2k ( l_uint8 **pdata, size_t *psize, PIX *pix, l_int32 quality, l_int32 nlevels, l_int32 hint, l_int32 debug );
+LEPT_DLL extern PIX * pixReadJpeg ( const char *filename, l_int32 cmapflag, l_int32 reduction, l_int32 *pnwarn, l_int32 hint );
+LEPT_DLL extern PIX * pixReadStreamJpeg ( FILE *fp, l_int32 cmapflag, l_int32 reduction, l_int32 *pnwarn, l_int32 hint );
+LEPT_DLL extern l_int32 readHeaderJpeg ( const char *filename, l_int32 *pw, l_int32 *ph, l_int32 *pspp, l_int32 *pycck, l_int32 *pcmyk );
+LEPT_DLL extern l_int32 freadHeaderJpeg ( FILE *fp, l_int32 *pw, l_int32 *ph, l_int32 *pspp, l_int32 *pycck, l_int32 *pcmyk );
+LEPT_DLL extern l_int32 fgetJpegResolution ( FILE *fp, l_int32 *pxres, l_int32 *pyres );
+LEPT_DLL extern l_int32 fgetJpegComment ( FILE *fp, l_uint8 **pcomment );
+LEPT_DLL extern l_int32 pixWriteJpeg ( const char *filename, PIX *pix, l_int32 quality, l_int32 progressive );
+LEPT_DLL extern l_int32 pixWriteStreamJpeg ( FILE *fp, PIX *pixs, l_int32 quality, l_int32 progressive );
+LEPT_DLL extern PIX * pixReadMemJpeg ( const l_uint8 *data, size_t size, l_int32 cmflag, l_int32 reduction, l_int32 *pnwarn, l_int32 hint );
+LEPT_DLL extern l_int32 readHeaderMemJpeg ( const l_uint8 *data, size_t size, l_int32 *pw, l_int32 *ph, l_int32 *pspp, l_int32 *pycck, l_int32 *pcmyk );
+LEPT_DLL extern l_int32 pixWriteMemJpeg ( l_uint8 **pdata, size_t *psize, PIX *pix, l_int32 quality, l_int32 progressive );
+LEPT_DLL extern l_int32 pixSetChromaSampling ( PIX *pix, l_int32 sampling );
+LEPT_DLL extern L_KERNEL * kernelCreate ( l_int32 height, l_int32 width );
+LEPT_DLL extern void kernelDestroy ( L_KERNEL **pkel );
+LEPT_DLL extern L_KERNEL * kernelCopy ( L_KERNEL *kels );
+LEPT_DLL extern l_int32 kernelGetElement ( L_KERNEL *kel, l_int32 row, l_int32 col, l_float32 *pval );
+LEPT_DLL extern l_int32 kernelSetElement ( L_KERNEL *kel, l_int32 row, l_int32 col, l_float32 val );
+LEPT_DLL extern l_int32 kernelGetParameters ( L_KERNEL *kel, l_int32 *psy, l_int32 *psx, l_int32 *pcy, l_int32 *pcx );
+LEPT_DLL extern l_int32 kernelSetOrigin ( L_KERNEL *kel, l_int32 cy, l_int32 cx );
+LEPT_DLL extern l_int32 kernelGetSum ( L_KERNEL *kel, l_float32 *psum );
+LEPT_DLL extern l_int32 kernelGetMinMax ( L_KERNEL *kel, l_float32 *pmin, l_float32 *pmax );
+LEPT_DLL extern L_KERNEL * kernelNormalize ( L_KERNEL *kels, l_float32 normsum );
+LEPT_DLL extern L_KERNEL * kernelInvert ( L_KERNEL *kels );
+LEPT_DLL extern l_float32 ** create2dFloatArray ( l_int32 sy, l_int32 sx );
+LEPT_DLL extern L_KERNEL * kernelRead ( const char *fname );
+LEPT_DLL extern L_KERNEL * kernelReadStream ( FILE *fp );
+LEPT_DLL extern l_int32 kernelWrite ( const char *fname, L_KERNEL *kel );
+LEPT_DLL extern l_int32 kernelWriteStream ( FILE *fp, L_KERNEL *kel );
+LEPT_DLL extern L_KERNEL * kernelCreateFromString ( l_int32 h, l_int32 w, l_int32 cy, l_int32 cx, const char *kdata );
+LEPT_DLL extern L_KERNEL * kernelCreateFromFile ( const char *filename );
+LEPT_DLL extern L_KERNEL * kernelCreateFromPix ( PIX *pix, l_int32 cy, l_int32 cx );
+LEPT_DLL extern PIX * kernelDisplayInPix ( L_KERNEL *kel, l_int32 size, l_int32 gthick );
+LEPT_DLL extern NUMA * parseStringForNumbers ( const char *str, const char *seps );
+LEPT_DLL extern L_KERNEL * makeFlatKernel ( l_int32 height, l_int32 width, l_int32 cy, l_int32 cx );
+LEPT_DLL extern L_KERNEL * makeGaussianKernel ( l_int32 halfheight, l_int32 halfwidth, l_float32 stdev, l_float32 max );
+LEPT_DLL extern l_int32 makeGaussianKernelSep ( l_int32 halfheight, l_int32 halfwidth, l_float32 stdev, l_float32 max, L_KERNEL **pkelx, L_KERNEL **pkely );
+LEPT_DLL extern L_KERNEL * makeDoGKernel ( l_int32 halfheight, l_int32 halfwidth, l_float32 stdev, l_float32 ratio );
+LEPT_DLL extern char * getImagelibVersions (  );
+LEPT_DLL extern void listDestroy ( DLLIST **phead );
+LEPT_DLL extern l_int32 listAddToHead ( DLLIST **phead, void *data );
+LEPT_DLL extern l_int32 listAddToTail ( DLLIST **phead, DLLIST **ptail, void *data );
+LEPT_DLL extern l_int32 listInsertBefore ( DLLIST **phead, DLLIST *elem, void *data );
+LEPT_DLL extern l_int32 listInsertAfter ( DLLIST **phead, DLLIST *elem, void *data );
+LEPT_DLL extern void * listRemoveElement ( DLLIST **phead, DLLIST *elem );
+LEPT_DLL extern void * listRemoveFromHead ( DLLIST **phead );
+LEPT_DLL extern void * listRemoveFromTail ( DLLIST **phead, DLLIST **ptail );
+LEPT_DLL extern DLLIST * listFindElement ( DLLIST *head, void *data );
+LEPT_DLL extern DLLIST * listFindTail ( DLLIST *head );
+LEPT_DLL extern l_int32 listGetCount ( DLLIST *head );
+LEPT_DLL extern l_int32 listReverse ( DLLIST **phead );
+LEPT_DLL extern l_int32 listJoin ( DLLIST **phead1, DLLIST **phead2 );
+LEPT_DLL extern L_AMAP * l_amapCreate ( l_int32 keytype );
+LEPT_DLL extern RB_TYPE * l_amapFind ( L_AMAP *m, RB_TYPE key );
+LEPT_DLL extern void l_amapInsert ( L_AMAP *m, RB_TYPE key, RB_TYPE value );
+LEPT_DLL extern void l_amapDelete ( L_AMAP *m, RB_TYPE key );
+LEPT_DLL extern void l_amapDestroy ( L_AMAP **pm );
+LEPT_DLL extern L_AMAP_NODE * l_amapGetFirst ( L_AMAP *m );
+LEPT_DLL extern L_AMAP_NODE * l_amapGetNext ( L_AMAP_NODE *n );
+LEPT_DLL extern L_AMAP_NODE * l_amapGetLast ( L_AMAP *m );
+LEPT_DLL extern L_AMAP_NODE * l_amapGetPrev ( L_AMAP_NODE *n );
+LEPT_DLL extern l_int32 l_amapSize ( L_AMAP *m );
+LEPT_DLL extern L_ASET * l_asetCreate ( l_int32 keytype );
+LEPT_DLL extern RB_TYPE * l_asetFind ( L_ASET *s, RB_TYPE key );
+LEPT_DLL extern void l_asetInsert ( L_ASET *s, RB_TYPE key );
+LEPT_DLL extern void l_asetDelete ( L_ASET *s, RB_TYPE key );
+LEPT_DLL extern void l_asetDestroy ( L_ASET **ps );
+LEPT_DLL extern L_ASET_NODE * l_asetGetFirst ( L_ASET *s );
+LEPT_DLL extern L_ASET_NODE * l_asetGetNext ( L_ASET_NODE *n );
+LEPT_DLL extern L_ASET_NODE * l_asetGetLast ( L_ASET *s );
+LEPT_DLL extern L_ASET_NODE * l_asetGetPrev ( L_ASET_NODE *n );
+LEPT_DLL extern l_int32 l_asetSize ( L_ASET *s );
+LEPT_DLL extern PIX * generateBinaryMaze ( l_int32 w, l_int32 h, l_int32 xi, l_int32 yi, l_float32 wallps, l_float32 ranis );
+LEPT_DLL extern PTA * pixSearchBinaryMaze ( PIX *pixs, l_int32 xi, l_int32 yi, l_int32 xf, l_int32 yf, PIX **ppixd );
+LEPT_DLL extern PTA * pixSearchGrayMaze ( PIX *pixs, l_int32 xi, l_int32 yi, l_int32 xf, l_int32 yf, PIX **ppixd );
+LEPT_DLL extern PIX * pixDilate ( PIX *pixd, PIX *pixs, SEL *sel );
+LEPT_DLL extern PIX * pixErode ( PIX *pixd, PIX *pixs, SEL *sel );
+LEPT_DLL extern PIX * pixHMT ( PIX *pixd, PIX *pixs, SEL *sel );
+LEPT_DLL extern PIX * pixOpen ( PIX *pixd, PIX *pixs, SEL *sel );
+LEPT_DLL extern PIX * pixClose ( PIX *pixd, PIX *pixs, SEL *sel );
+LEPT_DLL extern PIX * pixCloseSafe ( PIX *pixd, PIX *pixs, SEL *sel );
+LEPT_DLL extern PIX * pixOpenGeneralized ( PIX *pixd, PIX *pixs, SEL *sel );
+LEPT_DLL extern PIX * pixCloseGeneralized ( PIX *pixd, PIX *pixs, SEL *sel );
+LEPT_DLL extern PIX * pixDilateBrick ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixErodeBrick ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixOpenBrick ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixCloseBrick ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixCloseSafeBrick ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern l_int32 selectComposableSels ( l_int32 size, l_int32 direction, SEL **psel1, SEL **psel2 );
+LEPT_DLL extern l_int32 selectComposableSizes ( l_int32 size, l_int32 *pfactor1, l_int32 *pfactor2 );
+LEPT_DLL extern PIX * pixDilateCompBrick ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixErodeCompBrick ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixOpenCompBrick ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixCloseCompBrick ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixCloseSafeCompBrick ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern void resetMorphBoundaryCondition ( l_int32 bc );
+LEPT_DLL extern l_uint32 getMorphBorderPixelColor ( l_int32 type, l_int32 depth );
+LEPT_DLL extern PIX * pixExtractBoundary ( PIX *pixs, l_int32 type );
+LEPT_DLL extern PIX * pixMorphSequenceMasked ( PIX *pixs, PIX *pixm, const char *sequence, l_int32 dispsep );
+LEPT_DLL extern PIX * pixMorphSequenceByComponent ( PIX *pixs, const char *sequence, l_int32 connectivity, l_int32 minw, l_int32 minh, BOXA **pboxa );
+LEPT_DLL extern PIXA * pixaMorphSequenceByComponent ( PIXA *pixas, const char *sequence, l_int32 minw, l_int32 minh );
+LEPT_DLL extern PIX * pixMorphSequenceByRegion ( PIX *pixs, PIX *pixm, const char *sequence, l_int32 connectivity, l_int32 minw, l_int32 minh, BOXA **pboxa );
+LEPT_DLL extern PIXA * pixaMorphSequenceByRegion ( PIX *pixs, PIXA *pixam, const char *sequence, l_int32 minw, l_int32 minh );
+LEPT_DLL extern PIX * pixUnionOfMorphOps ( PIX *pixs, SELA *sela, l_int32 type );
+LEPT_DLL extern PIX * pixIntersectionOfMorphOps ( PIX *pixs, SELA *sela, l_int32 type );
+LEPT_DLL extern PIX * pixSelectiveConnCompFill ( PIX *pixs, l_int32 connectivity, l_int32 minw, l_int32 minh );
+LEPT_DLL extern l_int32 pixRemoveMatchedPattern ( PIX *pixs, PIX *pixp, PIX *pixe, l_int32 x0, l_int32 y0, l_int32 dsize );
+LEPT_DLL extern PIX * pixDisplayMatchedPattern ( PIX *pixs, PIX *pixp, PIX *pixe, l_int32 x0, l_int32 y0, l_uint32 color, l_float32 scale, l_int32 nlevels );
+LEPT_DLL extern PIXA * pixaExtendByMorph ( PIXA *pixas, l_int32 type, l_int32 niters, SEL *sel, l_int32 include );
+LEPT_DLL extern PIXA * pixaExtendByScaling ( PIXA *pixas, NUMA *nasc, l_int32 type, l_int32 include );
+LEPT_DLL extern PIX * pixSeedfillMorph ( PIX *pixs, PIX *pixm, l_int32 maxiters, l_int32 connectivity );
+LEPT_DLL extern NUMA * pixRunHistogramMorph ( PIX *pixs, l_int32 runtype, l_int32 direction, l_int32 maxsize );
+LEPT_DLL extern PIX * pixTophat ( PIX *pixs, l_int32 hsize, l_int32 vsize, l_int32 type );
+LEPT_DLL extern PIX * pixHDome ( PIX *pixs, l_int32 height, l_int32 connectivity );
+LEPT_DLL extern PIX * pixFastTophat ( PIX *pixs, l_int32 xsize, l_int32 ysize, l_int32 type );
+LEPT_DLL extern PIX * pixMorphGradient ( PIX *pixs, l_int32 hsize, l_int32 vsize, l_int32 smoothing );
+LEPT_DLL extern PTA * pixaCentroids ( PIXA *pixa );
+LEPT_DLL extern l_int32 pixCentroid ( PIX *pix, l_int32 *centtab, l_int32 *sumtab, l_float32 *pxave, l_float32 *pyave );
+LEPT_DLL extern PIX * pixDilateBrickDwa ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixErodeBrickDwa ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixOpenBrickDwa ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixCloseBrickDwa ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixDilateCompBrickDwa ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixErodeCompBrickDwa ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixOpenCompBrickDwa ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixCloseCompBrickDwa ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixDilateCompBrickExtendDwa ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixErodeCompBrickExtendDwa ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixOpenCompBrickExtendDwa ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern PIX * pixCloseCompBrickExtendDwa ( PIX *pixd, PIX *pixs, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern l_int32 getExtendedCompositeParameters ( l_int32 size, l_int32 *pn, l_int32 *pextra, l_int32 *pactualsize );
+LEPT_DLL extern PIX * pixMorphSequence ( PIX *pixs, const char *sequence, l_int32 dispsep );
+LEPT_DLL extern PIX * pixMorphCompSequence ( PIX *pixs, const char *sequence, l_int32 dispsep );
+LEPT_DLL extern PIX * pixMorphSequenceDwa ( PIX *pixs, const char *sequence, l_int32 dispsep );
+LEPT_DLL extern PIX * pixMorphCompSequenceDwa ( PIX *pixs, const char *sequence, l_int32 dispsep );
+LEPT_DLL extern l_int32 morphSequenceVerify ( SARRAY *sa );
+LEPT_DLL extern PIX * pixGrayMorphSequence ( PIX *pixs, const char *sequence, l_int32 dispsep, l_int32 dispy );
+LEPT_DLL extern PIX * pixColorMorphSequence ( PIX *pixs, const char *sequence, l_int32 dispsep, l_int32 dispy );
+LEPT_DLL extern NUMA * numaCreate ( l_int32 n );
+LEPT_DLL extern NUMA * numaCreateFromIArray ( l_int32 *iarray, l_int32 size );
+LEPT_DLL extern NUMA * numaCreateFromFArray ( l_float32 *farray, l_int32 size, l_int32 copyflag );
+LEPT_DLL extern NUMA * numaCreateFromString ( const char *str );
+LEPT_DLL extern void numaDestroy ( NUMA **pna );
+LEPT_DLL extern NUMA * numaCopy ( NUMA *na );
+LEPT_DLL extern NUMA * numaClone ( NUMA *na );
+LEPT_DLL extern l_int32 numaEmpty ( NUMA *na );
+LEPT_DLL extern l_int32 numaAddNumber ( NUMA *na, l_float32 val );
+LEPT_DLL extern l_int32 numaInsertNumber ( NUMA *na, l_int32 index, l_float32 val );
+LEPT_DLL extern l_int32 numaRemoveNumber ( NUMA *na, l_int32 index );
+LEPT_DLL extern l_int32 numaReplaceNumber ( NUMA *na, l_int32 index, l_float32 val );
+LEPT_DLL extern l_int32 numaGetCount ( NUMA *na );
+LEPT_DLL extern l_int32 numaSetCount ( NUMA *na, l_int32 newcount );
+LEPT_DLL extern l_int32 numaGetFValue ( NUMA *na, l_int32 index, l_float32 *pval );
+LEPT_DLL extern l_int32 numaGetIValue ( NUMA *na, l_int32 index, l_int32 *pival );
+LEPT_DLL extern l_int32 numaSetValue ( NUMA *na, l_int32 index, l_float32 val );
+LEPT_DLL extern l_int32 numaShiftValue ( NUMA *na, l_int32 index, l_float32 diff );
+LEPT_DLL extern l_int32 * numaGetIArray ( NUMA *na );
+LEPT_DLL extern l_float32 * numaGetFArray ( NUMA *na, l_int32 copyflag );
+LEPT_DLL extern l_int32 numaGetRefcount ( NUMA *na );
+LEPT_DLL extern l_int32 numaChangeRefcount ( NUMA *na, l_int32 delta );
+LEPT_DLL extern l_int32 numaGetParameters ( NUMA *na, l_float32 *pstartx, l_float32 *pdelx );
+LEPT_DLL extern l_int32 numaSetParameters ( NUMA *na, l_float32 startx, l_float32 delx );
+LEPT_DLL extern l_int32 numaCopyParameters ( NUMA *nad, NUMA *nas );
+LEPT_DLL extern SARRAY * numaConvertToSarray ( NUMA *na, l_int32 size1, l_int32 size2, l_int32 addzeros, l_int32 type );
+LEPT_DLL extern NUMA * numaRead ( const char *filename );
+LEPT_DLL extern NUMA * numaReadStream ( FILE *fp );
+LEPT_DLL extern NUMA * numaReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 numaWrite ( const char *filename, NUMA *na );
+LEPT_DLL extern l_int32 numaWriteStream ( FILE *fp, NUMA *na );
+LEPT_DLL extern l_int32 numaWriteMem ( l_uint8 **pdata, size_t *psize, NUMA *na );
+LEPT_DLL extern NUMAA * numaaCreate ( l_int32 n );
+LEPT_DLL extern NUMAA * numaaCreateFull ( l_int32 nptr, l_int32 n );
+LEPT_DLL extern l_int32 numaaTruncate ( NUMAA *naa );
+LEPT_DLL extern void numaaDestroy ( NUMAA **pnaa );
+LEPT_DLL extern l_int32 numaaAddNuma ( NUMAA *naa, NUMA *na, l_int32 copyflag );
+LEPT_DLL extern l_int32 numaaGetCount ( NUMAA *naa );
+LEPT_DLL extern l_int32 numaaGetNumaCount ( NUMAA *naa, l_int32 index );
+LEPT_DLL extern l_int32 numaaGetNumberCount ( NUMAA *naa );
+LEPT_DLL extern NUMA ** numaaGetPtrArray ( NUMAA *naa );
+LEPT_DLL extern NUMA * numaaGetNuma ( NUMAA *naa, l_int32 index, l_int32 accessflag );
+LEPT_DLL extern l_int32 numaaReplaceNuma ( NUMAA *naa, l_int32 index, NUMA *na );
+LEPT_DLL extern l_int32 numaaGetValue ( NUMAA *naa, l_int32 i, l_int32 j, l_float32 *pfval, l_int32 *pival );
+LEPT_DLL extern l_int32 numaaAddNumber ( NUMAA *naa, l_int32 index, l_float32 val );
+LEPT_DLL extern NUMAA * numaaRead ( const char *filename );
+LEPT_DLL extern NUMAA * numaaReadStream ( FILE *fp );
+LEPT_DLL extern NUMAA * numaaReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 numaaWrite ( const char *filename, NUMAA *naa );
+LEPT_DLL extern l_int32 numaaWriteStream ( FILE *fp, NUMAA *naa );
+LEPT_DLL extern l_int32 numaaWriteMem ( l_uint8 **pdata, size_t *psize, NUMAA *naa );
+LEPT_DLL extern NUMA * numaArithOp ( NUMA *nad, NUMA *na1, NUMA *na2, l_int32 op );
+LEPT_DLL extern NUMA * numaLogicalOp ( NUMA *nad, NUMA *na1, NUMA *na2, l_int32 op );
+LEPT_DLL extern NUMA * numaInvert ( NUMA *nad, NUMA *nas );
+LEPT_DLL extern l_int32 numaSimilar ( NUMA *na1, NUMA *na2, l_float32 maxdiff, l_int32 *psimilar );
+LEPT_DLL extern l_int32 numaAddToNumber ( NUMA *na, l_int32 index, l_float32 val );
+LEPT_DLL extern l_int32 numaGetMin ( NUMA *na, l_float32 *pminval, l_int32 *piminloc );
+LEPT_DLL extern l_int32 numaGetMax ( NUMA *na, l_float32 *pmaxval, l_int32 *pimaxloc );
+LEPT_DLL extern l_int32 numaGetSum ( NUMA *na, l_float32 *psum );
+LEPT_DLL extern NUMA * numaGetPartialSums ( NUMA *na );
+LEPT_DLL extern l_int32 numaGetSumOnInterval ( NUMA *na, l_int32 first, l_int32 last, l_float32 *psum );
+LEPT_DLL extern l_int32 numaHasOnlyIntegers ( NUMA *na, l_int32 maxsamples, l_int32 *pallints );
+LEPT_DLL extern NUMA * numaSubsample ( NUMA *nas, l_int32 subfactor );
+LEPT_DLL extern NUMA * numaMakeDelta ( NUMA *nas );
+LEPT_DLL extern NUMA * numaMakeSequence ( l_float32 startval, l_float32 increment, l_int32 size );
+LEPT_DLL extern NUMA * numaMakeConstant ( l_float32 val, l_int32 size );
+LEPT_DLL extern NUMA * numaMakeAbsValue ( NUMA *nad, NUMA *nas );
+LEPT_DLL extern NUMA * numaAddBorder ( NUMA *nas, l_int32 left, l_int32 right, l_float32 val );
+LEPT_DLL extern NUMA * numaAddSpecifiedBorder ( NUMA *nas, l_int32 left, l_int32 right, l_int32 type );
+LEPT_DLL extern NUMA * numaRemoveBorder ( NUMA *nas, l_int32 left, l_int32 right );
+LEPT_DLL extern l_int32 numaCountNonzeroRuns ( NUMA *na, l_int32 *pcount );
+LEPT_DLL extern l_int32 numaGetNonzeroRange ( NUMA *na, l_float32 eps, l_int32 *pfirst, l_int32 *plast );
+LEPT_DLL extern l_int32 numaGetCountRelativeToZero ( NUMA *na, l_int32 type, l_int32 *pcount );
+LEPT_DLL extern NUMA * numaClipToInterval ( NUMA *nas, l_int32 first, l_int32 last );
+LEPT_DLL extern NUMA * numaMakeThresholdIndicator ( NUMA *nas, l_float32 thresh, l_int32 type );
+LEPT_DLL extern NUMA * numaUniformSampling ( NUMA *nas, l_int32 nsamp );
+LEPT_DLL extern NUMA * numaReverse ( NUMA *nad, NUMA *nas );
+LEPT_DLL extern NUMA * numaLowPassIntervals ( NUMA *nas, l_float32 thresh, l_float32 maxn );
+LEPT_DLL extern NUMA * numaThresholdEdges ( NUMA *nas, l_float32 thresh1, l_float32 thresh2, l_float32 maxn );
+LEPT_DLL extern l_int32 numaGetSpanValues ( NUMA *na, l_int32 span, l_int32 *pstart, l_int32 *pend );
+LEPT_DLL extern l_int32 numaGetEdgeValues ( NUMA *na, l_int32 edge, l_int32 *pstart, l_int32 *pend, l_int32 *psign );
+LEPT_DLL extern l_int32 numaInterpolateEqxVal ( l_float32 startx, l_float32 deltax, NUMA *nay, l_int32 type, l_float32 xval, l_float32 *pyval );
+LEPT_DLL extern l_int32 numaInterpolateArbxVal ( NUMA *nax, NUMA *nay, l_int32 type, l_float32 xval, l_float32 *pyval );
+LEPT_DLL extern l_int32 numaInterpolateEqxInterval ( l_float32 startx, l_float32 deltax, NUMA *nasy, l_int32 type, l_float32 x0, l_float32 x1, l_int32 npts, NUMA **pnax, NUMA **pnay );
+LEPT_DLL extern l_int32 numaInterpolateArbxInterval ( NUMA *nax, NUMA *nay, l_int32 type, l_float32 x0, l_float32 x1, l_int32 npts, NUMA **pnadx, NUMA **pnady );
+LEPT_DLL extern l_int32 numaFitMax ( NUMA *na, l_float32 *pmaxval, NUMA *naloc, l_float32 *pmaxloc );
+LEPT_DLL extern l_int32 numaDifferentiateInterval ( NUMA *nax, NUMA *nay, l_float32 x0, l_float32 x1, l_int32 npts, NUMA **pnadx, NUMA **pnady );
+LEPT_DLL extern l_int32 numaIntegrateInterval ( NUMA *nax, NUMA *nay, l_float32 x0, l_float32 x1, l_int32 npts, l_float32 *psum );
+LEPT_DLL extern l_int32 numaSortGeneral ( NUMA *na, NUMA **pnasort, NUMA **pnaindex, NUMA **pnainvert, l_int32 sortorder, l_int32 sorttype );
+LEPT_DLL extern NUMA * numaSortAutoSelect ( NUMA *nas, l_int32 sortorder );
+LEPT_DLL extern NUMA * numaSortIndexAutoSelect ( NUMA *nas, l_int32 sortorder );
+LEPT_DLL extern l_int32 numaChooseSortType ( NUMA *nas );
+LEPT_DLL extern NUMA * numaSort ( NUMA *naout, NUMA *nain, l_int32 sortorder );
+LEPT_DLL extern NUMA * numaBinSort ( NUMA *nas, l_int32 sortorder );
+LEPT_DLL extern NUMA * numaGetSortIndex ( NUMA *na, l_int32 sortorder );
+LEPT_DLL extern NUMA * numaGetBinSortIndex ( NUMA *nas, l_int32 sortorder );
+LEPT_DLL extern NUMA * numaSortByIndex ( NUMA *nas, NUMA *naindex );
+LEPT_DLL extern l_int32 numaIsSorted ( NUMA *nas, l_int32 sortorder, l_int32 *psorted );
+LEPT_DLL extern l_int32 numaSortPair ( NUMA *nax, NUMA *nay, l_int32 sortorder, NUMA **pnasx, NUMA **pnasy );
+LEPT_DLL extern NUMA * numaInvertMap ( NUMA *nas );
+LEPT_DLL extern NUMA * numaPseudorandomSequence ( l_int32 size, l_int32 seed );
+LEPT_DLL extern NUMA * numaRandomPermutation ( NUMA *nas, l_int32 seed );
+LEPT_DLL extern l_int32 numaGetRankValue ( NUMA *na, l_float32 fract, NUMA *nasort, l_int32 usebins, l_float32 *pval );
+LEPT_DLL extern l_int32 numaGetMedian ( NUMA *na, l_float32 *pval );
+LEPT_DLL extern l_int32 numaGetBinnedMedian ( NUMA *na, l_int32 *pval );
+LEPT_DLL extern l_int32 numaGetMode ( NUMA *na, l_float32 *pval, l_int32 *pcount );
+LEPT_DLL extern l_int32 numaGetMedianVariation ( NUMA *na, l_float32 *pmedval, l_float32 *pmedvar );
+LEPT_DLL extern l_int32 numaJoin ( NUMA *nad, NUMA *nas, l_int32 istart, l_int32 iend );
+LEPT_DLL extern l_int32 numaaJoin ( NUMAA *naad, NUMAA *naas, l_int32 istart, l_int32 iend );
+LEPT_DLL extern NUMA * numaaFlattenToNuma ( NUMAA *naa );
+LEPT_DLL extern NUMA * numaErode ( NUMA *nas, l_int32 size );
+LEPT_DLL extern NUMA * numaDilate ( NUMA *nas, l_int32 size );
+LEPT_DLL extern NUMA * numaOpen ( NUMA *nas, l_int32 size );
+LEPT_DLL extern NUMA * numaClose ( NUMA *nas, l_int32 size );
+LEPT_DLL extern NUMA * numaTransform ( NUMA *nas, l_float32 shift, l_float32 scale );
+LEPT_DLL extern l_int32 numaSimpleStats ( NUMA *na, l_int32 first, l_int32 last, l_float32 *pmean, l_float32 *pvar, l_float32 *prvar );
+LEPT_DLL extern l_int32 numaWindowedStats ( NUMA *nas, l_int32 wc, NUMA **pnam, NUMA **pnams, NUMA **pnav, NUMA **pnarv );
+LEPT_DLL extern NUMA * numaWindowedMean ( NUMA *nas, l_int32 wc );
+LEPT_DLL extern NUMA * numaWindowedMeanSquare ( NUMA *nas, l_int32 wc );
+LEPT_DLL extern l_int32 numaWindowedVariance ( NUMA *nam, NUMA *nams, NUMA **pnav, NUMA **pnarv );
+LEPT_DLL extern NUMA * numaWindowedMedian ( NUMA *nas, l_int32 halfwin );
+LEPT_DLL extern NUMA * numaConvertToInt ( NUMA *nas );
+LEPT_DLL extern NUMA * numaMakeHistogram ( NUMA *na, l_int32 maxbins, l_int32 *pbinsize, l_int32 *pbinstart );
+LEPT_DLL extern NUMA * numaMakeHistogramAuto ( NUMA *na, l_int32 maxbins );
+LEPT_DLL extern NUMA * numaMakeHistogramClipped ( NUMA *na, l_float32 binsize, l_float32 maxsize );
+LEPT_DLL extern NUMA * numaRebinHistogram ( NUMA *nas, l_int32 newsize );
+LEPT_DLL extern NUMA * numaNormalizeHistogram ( NUMA *nas, l_float32 tsum );
+LEPT_DLL extern l_int32 numaGetStatsUsingHistogram ( NUMA *na, l_int32 maxbins, l_float32 *pmin, l_float32 *pmax, l_float32 *pmean, l_float32 *pvariance, l_float32 *pmedian, l_float32 rank, l_float32 *prval, NUMA **phisto );
+LEPT_DLL extern l_int32 numaGetHistogramStats ( NUMA *nahisto, l_float32 startx, l_float32 deltax, l_float32 *pxmean, l_float32 *pxmedian, l_float32 *pxmode, l_float32 *pxvariance );
+LEPT_DLL extern l_int32 numaGetHistogramStatsOnInterval ( NUMA *nahisto, l_float32 startx, l_float32 deltax, l_int32 ifirst, l_int32 ilast, l_float32 *pxmean, l_float32 *pxmedian, l_float32 *pxmode, l_float32 *pxvariance );
+LEPT_DLL extern l_int32 numaMakeRankFromHistogram ( l_float32 startx, l_float32 deltax, NUMA *nasy, l_int32 npts, NUMA **pnax, NUMA **pnay );
+LEPT_DLL extern l_int32 numaHistogramGetRankFromVal ( NUMA *na, l_float32 rval, l_float32 *prank );
+LEPT_DLL extern l_int32 numaHistogramGetValFromRank ( NUMA *na, l_float32 rank, l_float32 *prval );
+LEPT_DLL extern l_int32 numaDiscretizeRankAndIntensity ( NUMA *na, l_int32 nbins, NUMA **pnarbin, NUMA **pnam, NUMA **pnar, NUMA **pnabb );
+LEPT_DLL extern l_int32 numaGetRankBinValues ( NUMA *na, l_int32 nbins, NUMA **pnarbin, NUMA **pnam );
+LEPT_DLL extern l_int32 numaSplitDistribution ( NUMA *na, l_float32 scorefract, l_int32 *psplitindex, l_float32 *pave1, l_float32 *pave2, l_float32 *pnum1, l_float32 *pnum2, NUMA **pnascore );
+LEPT_DLL extern l_int32 grayHistogramsToEMD ( NUMAA *naa1, NUMAA *naa2, NUMA **pnad );
+LEPT_DLL extern l_int32 numaEarthMoverDistance ( NUMA *na1, NUMA *na2, l_float32 *pdist );
+LEPT_DLL extern l_int32 grayInterHistogramStats ( NUMAA *naa, l_int32 wc, NUMA **pnam, NUMA **pnams, NUMA **pnav, NUMA **pnarv );
+LEPT_DLL extern NUMA * numaFindPeaks ( NUMA *nas, l_int32 nmax, l_float32 fract1, l_float32 fract2 );
+LEPT_DLL extern NUMA * numaFindExtrema ( NUMA *nas, l_float32 delta, NUMA **pnav );
+LEPT_DLL extern l_int32 numaCountReversals ( NUMA *nas, l_float32 minreversal, l_int32 *pnr, l_float32 *pnrpl );
+LEPT_DLL extern l_int32 numaSelectCrossingThreshold ( NUMA *nax, NUMA *nay, l_float32 estthresh, l_float32 *pbestthresh );
+LEPT_DLL extern NUMA * numaCrossingsByThreshold ( NUMA *nax, NUMA *nay, l_float32 thresh );
+LEPT_DLL extern NUMA * numaCrossingsByPeaks ( NUMA *nax, NUMA *nay, l_float32 delta );
+LEPT_DLL extern l_int32 numaEvalBestHaarParameters ( NUMA *nas, l_float32 relweight, l_int32 nwidth, l_int32 nshift, l_float32 minwidth, l_float32 maxwidth, l_float32 *pbestwidth, l_float32 *pbestshift, l_float32 *pbestscore );
+LEPT_DLL extern l_int32 numaEvalHaarSum ( NUMA *nas, l_float32 width, l_float32 shift, l_float32 relweight, l_float32 *pscore );
+LEPT_DLL extern NUMA * genConstrainedNumaInRange ( l_int32 first, l_int32 last, l_int32 nmax, l_int32 use_pairs );
+LEPT_DLL extern l_int32 pixGetRegionsBinary ( PIX *pixs, PIX **ppixhm, PIX **ppixtm, PIX **ppixtb, PIXA *pixadb );
+LEPT_DLL extern PIX * pixGenHalftoneMask ( PIX *pixs, PIX **ppixtext, l_int32 *phtfound, l_int32 debug );
+LEPT_DLL extern PIX * pixGenerateHalftoneMask ( PIX *pixs, PIX **ppixtext, l_int32 *phtfound, PIXA *pixadb );
+LEPT_DLL extern PIX * pixGenTextlineMask ( PIX *pixs, PIX **ppixvws, l_int32 *ptlfound, PIXA *pixadb );
+LEPT_DLL extern PIX * pixGenTextblockMask ( PIX *pixs, PIX *pixvws, PIXA *pixadb );
+LEPT_DLL extern BOX * pixFindPageForeground ( PIX *pixs, l_int32 threshold, l_int32 mindist, l_int32 erasedist, l_int32 pagenum, l_int32 showmorph, l_int32 display, const char *pdfdir );
+LEPT_DLL extern l_int32 pixSplitIntoCharacters ( PIX *pixs, l_int32 minw, l_int32 minh, BOXA **pboxa, PIXA **ppixa, PIX **ppixdebug );
+LEPT_DLL extern BOXA * pixSplitComponentWithProfile ( PIX *pixs, l_int32 delta, l_int32 mindel, PIX **ppixdebug );
+LEPT_DLL extern PIXA * pixExtractTextlines ( PIX *pixs, l_int32 maxw, l_int32 maxh, l_int32 minw, l_int32 minh, l_int32 adjw, l_int32 adjh, PIXA *pixadb );
+LEPT_DLL extern PIXA * pixExtractRawTextlines ( PIX *pixs, l_int32 maxw, l_int32 maxh, l_int32 adjw, l_int32 adjh, PIXA *pixadb );
+LEPT_DLL extern l_int32 pixCountTextColumns ( PIX *pixs, l_float32 deltafract, l_float32 peakfract, l_float32 clipfract, l_int32 *pncols, PIXA *pixadb );
+LEPT_DLL extern l_int32 pixDecideIfText ( PIX *pixs, BOX *box, l_int32 *pistext, PIXA *pixadb );
+LEPT_DLL extern l_int32 pixFindThreshFgExtent ( PIX *pixs, l_int32 thresh, l_int32 *ptop, l_int32 *pbot );
+LEPT_DLL extern l_int32 pixDecideIfTable ( PIX *pixs, BOX *box, l_int32 *pistable, PIXA *pixadb );
+LEPT_DLL extern PIX * pixPrepare1bpp ( PIX *pixs, BOX *box, l_float32 cropfract, l_int32 outres );
+LEPT_DLL extern l_int32 pixEstimateBackground ( PIX *pixs, l_int32 darkthresh, l_float32 edgecrop, l_int32 *pbg );
+LEPT_DLL extern l_int32 pixFindLargeRectangles ( PIX *pixs, l_int32 polarity, l_int32 nrect, BOXA **pboxa, PIX **ppixdb );
+LEPT_DLL extern l_int32 pixFindLargestRectangle ( PIX *pixs, l_int32 polarity, BOX **pbox, PIX **ppixdb );
+LEPT_DLL extern l_int32 pixSetSelectCmap ( PIX *pixs, BOX *box, l_int32 sindex, l_int32 rval, l_int32 gval, l_int32 bval );
+LEPT_DLL extern l_int32 pixColorGrayRegionsCmap ( PIX *pixs, BOXA *boxa, l_int32 type, l_int32 rval, l_int32 gval, l_int32 bval );
+LEPT_DLL extern l_int32 pixColorGrayCmap ( PIX *pixs, BOX *box, l_int32 type, l_int32 rval, l_int32 gval, l_int32 bval );
+LEPT_DLL extern l_int32 pixColorGrayMaskedCmap ( PIX *pixs, PIX *pixm, l_int32 type, l_int32 rval, l_int32 gval, l_int32 bval );
+LEPT_DLL extern l_int32 addColorizedGrayToCmap ( PIXCMAP *cmap, l_int32 type, l_int32 rval, l_int32 gval, l_int32 bval, NUMA **pna );
+LEPT_DLL extern l_int32 pixSetSelectMaskedCmap ( PIX *pixs, PIX *pixm, l_int32 x, l_int32 y, l_int32 sindex, l_int32 rval, l_int32 gval, l_int32 bval );
+LEPT_DLL extern l_int32 pixSetMaskedCmap ( PIX *pixs, PIX *pixm, l_int32 x, l_int32 y, l_int32 rval, l_int32 gval, l_int32 bval );
+LEPT_DLL extern char * parseForProtos ( const char *filein, const char *prestring );
+LEPT_DLL extern BOXA * boxaGetWhiteblocks ( BOXA *boxas, BOX *box, l_int32 sortflag, l_int32 maxboxes, l_float32 maxoverlap, l_int32 maxperim, l_float32 fract, l_int32 maxpops );
+LEPT_DLL extern BOXA * boxaPruneSortedOnOverlap ( BOXA *boxas, l_float32 maxoverlap );
+LEPT_DLL extern l_int32 convertFilesToPdf ( const char *dirname, const char *substr, l_int32 res, l_float32 scalefactor, l_int32 type, l_int32 quality, const char *title, const char *fileout );
+LEPT_DLL extern l_int32 saConvertFilesToPdf ( SARRAY *sa, l_int32 res, l_float32 scalefactor, l_int32 type, l_int32 quality, const char *title, const char *fileout );
+LEPT_DLL extern l_int32 saConvertFilesToPdfData ( SARRAY *sa, l_int32 res, l_float32 scalefactor, l_int32 type, l_int32 quality, const char *title, l_uint8 **pdata, size_t *pnbytes );
+LEPT_DLL extern l_int32 selectDefaultPdfEncoding ( PIX *pix, l_int32 *ptype );
+LEPT_DLL extern l_int32 convertUnscaledFilesToPdf ( const char *dirname, const char *substr, const char *title, const char *fileout );
+LEPT_DLL extern l_int32 saConvertUnscaledFilesToPdf ( SARRAY *sa, const char *title, const char *fileout );
+LEPT_DLL extern l_int32 saConvertUnscaledFilesToPdfData ( SARRAY *sa, const char *title, l_uint8 **pdata, size_t *pnbytes );
+LEPT_DLL extern l_int32 convertUnscaledToPdfData ( const char *fname, const char *title, l_uint8 **pdata, size_t *pnbytes );
+LEPT_DLL extern l_int32 pixaConvertToPdf ( PIXA *pixa, l_int32 res, l_float32 scalefactor, l_int32 type, l_int32 quality, const char *title, const char *fileout );
+LEPT_DLL extern l_int32 pixaConvertToPdfData ( PIXA *pixa, l_int32 res, l_float32 scalefactor, l_int32 type, l_int32 quality, const char *title, l_uint8 **pdata, size_t *pnbytes );
+LEPT_DLL extern l_int32 convertToPdf ( const char *filein, l_int32 type, l_int32 quality, const char *fileout, l_int32 x, l_int32 y, l_int32 res, const char *title, L_PDF_DATA **plpd, l_int32 position );
+LEPT_DLL extern l_int32 convertImageDataToPdf ( l_uint8 *imdata, size_t size, l_int32 type, l_int32 quality, const char *fileout, l_int32 x, l_int32 y, l_int32 res, const char *title, L_PDF_DATA **plpd, l_int32 position );
+LEPT_DLL extern l_int32 convertToPdfData ( const char *filein, l_int32 type, l_int32 quality, l_uint8 **pdata, size_t *pnbytes, l_int32 x, l_int32 y, l_int32 res, const char *title, L_PDF_DATA **plpd, l_int32 position );
+LEPT_DLL extern l_int32 convertImageDataToPdfData ( l_uint8 *imdata, size_t size, l_int32 type, l_int32 quality, l_uint8 **pdata, size_t *pnbytes, l_int32 x, l_int32 y, l_int32 res, const char *title, L_PDF_DATA **plpd, l_int32 position );
+LEPT_DLL extern l_int32 pixConvertToPdf ( PIX *pix, l_int32 type, l_int32 quality, const char *fileout, l_int32 x, l_int32 y, l_int32 res, const char *title, L_PDF_DATA **plpd, l_int32 position );
+LEPT_DLL extern l_int32 pixWriteStreamPdf ( FILE *fp, PIX *pix, l_int32 res, const char *title );
+LEPT_DLL extern l_int32 pixWriteMemPdf ( l_uint8 **pdata, size_t *pnbytes, PIX *pix, l_int32 res, const char *title );
+LEPT_DLL extern l_int32 convertSegmentedFilesToPdf ( const char *dirname, const char *substr, l_int32 res, l_int32 type, l_int32 thresh, BOXAA *baa, l_int32 quality, l_float32 scalefactor, const char *title, const char *fileout );
+LEPT_DLL extern BOXAA * convertNumberedMasksToBoxaa ( const char *dirname, const char *substr, l_int32 numpre, l_int32 numpost );
+LEPT_DLL extern l_int32 convertToPdfSegmented ( const char *filein, l_int32 res, l_int32 type, l_int32 thresh, BOXA *boxa, l_int32 quality, l_float32 scalefactor, const char *title, const char *fileout );
+LEPT_DLL extern l_int32 pixConvertToPdfSegmented ( PIX *pixs, l_int32 res, l_int32 type, l_int32 thresh, BOXA *boxa, l_int32 quality, l_float32 scalefactor, const char *title, const char *fileout );
+LEPT_DLL extern l_int32 convertToPdfDataSegmented ( const char *filein, l_int32 res, l_int32 type, l_int32 thresh, BOXA *boxa, l_int32 quality, l_float32 scalefactor, const char *title, l_uint8 **pdata, size_t *pnbytes );
+LEPT_DLL extern l_int32 pixConvertToPdfDataSegmented ( PIX *pixs, l_int32 res, l_int32 type, l_int32 thresh, BOXA *boxa, l_int32 quality, l_float32 scalefactor, const char *title, l_uint8 **pdata, size_t *pnbytes );
+LEPT_DLL extern l_int32 concatenatePdf ( const char *dirname, const char *substr, const char *fileout );
+LEPT_DLL extern l_int32 saConcatenatePdf ( SARRAY *sa, const char *fileout );
+LEPT_DLL extern l_int32 ptraConcatenatePdf ( L_PTRA *pa, const char *fileout );
+LEPT_DLL extern l_int32 concatenatePdfToData ( const char *dirname, const char *substr, l_uint8 **pdata, size_t *pnbytes );
+LEPT_DLL extern l_int32 saConcatenatePdfToData ( SARRAY *sa, l_uint8 **pdata, size_t *pnbytes );
+LEPT_DLL extern l_int32 pixConvertToPdfData ( PIX *pix, l_int32 type, l_int32 quality, l_uint8 **pdata, size_t *pnbytes, l_int32 x, l_int32 y, l_int32 res, const char *title, L_PDF_DATA **plpd, l_int32 position );
+LEPT_DLL extern l_int32 ptraConcatenatePdfToData ( L_PTRA *pa_data, SARRAY *sa, l_uint8 **pdata, size_t *pnbytes );
+LEPT_DLL extern l_int32 convertTiffMultipageToPdf ( const char *filein, const char *fileout );
+LEPT_DLL extern l_int32 l_generateCIDataForPdf ( const char *fname, PIX *pix, l_int32 quality, L_COMP_DATA **pcid );
+LEPT_DLL extern L_COMP_DATA * l_generateFlateDataPdf ( const char *fname, PIX *pixs );
+LEPT_DLL extern L_COMP_DATA * l_generateJpegData ( const char *fname, l_int32 ascii85flag );
+LEPT_DLL extern l_int32 l_generateCIData ( const char *fname, l_int32 type, l_int32 quality, l_int32 ascii85, L_COMP_DATA **pcid );
+LEPT_DLL extern l_int32 pixGenerateCIData ( PIX *pixs, l_int32 type, l_int32 quality, l_int32 ascii85, L_COMP_DATA **pcid );
+LEPT_DLL extern L_COMP_DATA * l_generateFlateData ( const char *fname, l_int32 ascii85flag );
+LEPT_DLL extern L_COMP_DATA * l_generateG4Data ( const char *fname, l_int32 ascii85flag );
+LEPT_DLL extern l_int32 cidConvertToPdfData ( L_COMP_DATA *cid, const char *title, l_uint8 **pdata, size_t *pnbytes );
+LEPT_DLL extern void l_CIDataDestroy ( L_COMP_DATA **pcid );
+LEPT_DLL extern void l_pdfSetG4ImageMask ( l_int32 flag );
+LEPT_DLL extern void l_pdfSetDateAndVersion ( l_int32 flag );
+LEPT_DLL extern void setPixMemoryManager ( alloc_fn allocator, dealloc_fn deallocator );
+LEPT_DLL extern PIX * pixCreate ( l_int32 width, l_int32 height, l_int32 depth );
+LEPT_DLL extern PIX * pixCreateNoInit ( l_int32 width, l_int32 height, l_int32 depth );
+LEPT_DLL extern PIX * pixCreateTemplate ( PIX *pixs );
+LEPT_DLL extern PIX * pixCreateTemplateNoInit ( PIX *pixs );
+LEPT_DLL extern PIX * pixCreateHeader ( l_int32 width, l_int32 height, l_int32 depth );
+LEPT_DLL extern PIX * pixClone ( PIX *pixs );
+LEPT_DLL extern void pixDestroy ( PIX **ppix );
+LEPT_DLL extern PIX * pixCopy ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern l_int32 pixResizeImageData ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern l_int32 pixCopyColormap ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern l_int32 pixSizesEqual ( PIX *pix1, PIX *pix2 );
+LEPT_DLL extern l_int32 pixTransferAllData ( PIX *pixd, PIX **ppixs, l_int32 copytext, l_int32 copyformat );
+LEPT_DLL extern l_int32 pixSwapAndDestroy ( PIX **ppixd, PIX **ppixs );
+LEPT_DLL extern l_int32 pixGetWidth ( PIX *pix );
+LEPT_DLL extern l_int32 pixSetWidth ( PIX *pix, l_int32 width );
+LEPT_DLL extern l_int32 pixGetHeight ( PIX *pix );
+LEPT_DLL extern l_int32 pixSetHeight ( PIX *pix, l_int32 height );
+LEPT_DLL extern l_int32 pixGetDepth ( PIX *pix );
+LEPT_DLL extern l_int32 pixSetDepth ( PIX *pix, l_int32 depth );
+LEPT_DLL extern l_int32 pixGetDimensions ( PIX *pix, l_int32 *pw, l_int32 *ph, l_int32 *pd );
+LEPT_DLL extern l_int32 pixSetDimensions ( PIX *pix, l_int32 w, l_int32 h, l_int32 d );
+LEPT_DLL extern l_int32 pixCopyDimensions ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern l_int32 pixGetSpp ( PIX *pix );
+LEPT_DLL extern l_int32 pixSetSpp ( PIX *pix, l_int32 spp );
+LEPT_DLL extern l_int32 pixCopySpp ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern l_int32 pixGetWpl ( PIX *pix );
+LEPT_DLL extern l_int32 pixSetWpl ( PIX *pix, l_int32 wpl );
+LEPT_DLL extern l_int32 pixGetRefcount ( PIX *pix );
+LEPT_DLL extern l_int32 pixChangeRefcount ( PIX *pix, l_int32 delta );
+LEPT_DLL extern l_int32 pixGetXRes ( PIX *pix );
+LEPT_DLL extern l_int32 pixSetXRes ( PIX *pix, l_int32 res );
+LEPT_DLL extern l_int32 pixGetYRes ( PIX *pix );
+LEPT_DLL extern l_int32 pixSetYRes ( PIX *pix, l_int32 res );
+LEPT_DLL extern l_int32 pixGetResolution ( PIX *pix, l_int32 *pxres, l_int32 *pyres );
+LEPT_DLL extern l_int32 pixSetResolution ( PIX *pix, l_int32 xres, l_int32 yres );
+LEPT_DLL extern l_int32 pixCopyResolution ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern l_int32 pixScaleResolution ( PIX *pix, l_float32 xscale, l_float32 yscale );
+LEPT_DLL extern l_int32 pixGetInputFormat ( PIX *pix );
+LEPT_DLL extern l_int32 pixSetInputFormat ( PIX *pix, l_int32 informat );
+LEPT_DLL extern l_int32 pixCopyInputFormat ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern l_int32 pixSetSpecial ( PIX *pix, l_int32 special );
+LEPT_DLL extern char * pixGetText ( PIX *pix );
+LEPT_DLL extern l_int32 pixSetText ( PIX *pix, const char *textstring );
+LEPT_DLL extern l_int32 pixAddText ( PIX *pix, const char *textstring );
+LEPT_DLL extern l_int32 pixCopyText ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern PIXCMAP * pixGetColormap ( PIX *pix );
+LEPT_DLL extern l_int32 pixSetColormap ( PIX *pix, PIXCMAP *colormap );
+LEPT_DLL extern l_int32 pixDestroyColormap ( PIX *pix );
+LEPT_DLL extern l_uint32 * pixGetData ( PIX *pix );
+LEPT_DLL extern l_int32 pixSetData ( PIX *pix, l_uint32 *data );
+LEPT_DLL extern l_uint32 * pixExtractData ( PIX *pixs );
+LEPT_DLL extern l_int32 pixFreeData ( PIX *pix );
+LEPT_DLL extern void ** pixGetLinePtrs ( PIX *pix, l_int32 *psize );
+LEPT_DLL extern l_int32 pixPrintStreamInfo ( FILE *fp, PIX *pix, const char *text );
+LEPT_DLL extern l_int32 pixGetPixel ( PIX *pix, l_int32 x, l_int32 y, l_uint32 *pval );
+LEPT_DLL extern l_int32 pixSetPixel ( PIX *pix, l_int32 x, l_int32 y, l_uint32 val );
+LEPT_DLL extern l_int32 pixGetRGBPixel ( PIX *pix, l_int32 x, l_int32 y, l_int32 *prval, l_int32 *pgval, l_int32 *pbval );
+LEPT_DLL extern l_int32 pixSetRGBPixel ( PIX *pix, l_int32 x, l_int32 y, l_int32 rval, l_int32 gval, l_int32 bval );
+LEPT_DLL extern l_int32 pixGetRandomPixel ( PIX *pix, l_uint32 *pval, l_int32 *px, l_int32 *py );
+LEPT_DLL extern l_int32 pixClearPixel ( PIX *pix, l_int32 x, l_int32 y );
+LEPT_DLL extern l_int32 pixFlipPixel ( PIX *pix, l_int32 x, l_int32 y );
+LEPT_DLL extern void setPixelLow ( l_uint32 *line, l_int32 x, l_int32 depth, l_uint32 val );
+LEPT_DLL extern l_int32 pixGetBlackOrWhiteVal ( PIX *pixs, l_int32 op, l_uint32 *pval );
+LEPT_DLL extern l_int32 pixClearAll ( PIX *pix );
+LEPT_DLL extern l_int32 pixSetAll ( PIX *pix );
+LEPT_DLL extern l_int32 pixSetAllGray ( PIX *pix, l_int32 grayval );
+LEPT_DLL extern l_int32 pixSetAllArbitrary ( PIX *pix, l_uint32 val );
+LEPT_DLL extern l_int32 pixSetBlackOrWhite ( PIX *pixs, l_int32 op );
+LEPT_DLL extern l_int32 pixSetComponentArbitrary ( PIX *pix, l_int32 comp, l_int32 val );
+LEPT_DLL extern l_int32 pixClearInRect ( PIX *pix, BOX *box );
+LEPT_DLL extern l_int32 pixSetInRect ( PIX *pix, BOX *box );
+LEPT_DLL extern l_int32 pixSetInRectArbitrary ( PIX *pix, BOX *box, l_uint32 val );
+LEPT_DLL extern l_int32 pixBlendInRect ( PIX *pixs, BOX *box, l_uint32 val, l_float32 fract );
+LEPT_DLL extern l_int32 pixSetPadBits ( PIX *pix, l_int32 val );
+LEPT_DLL extern l_int32 pixSetPadBitsBand ( PIX *pix, l_int32 by, l_int32 bh, l_int32 val );
+LEPT_DLL extern l_int32 pixSetOrClearBorder ( PIX *pixs, l_int32 left, l_int32 right, l_int32 top, l_int32 bot, l_int32 op );
+LEPT_DLL extern l_int32 pixSetBorderVal ( PIX *pixs, l_int32 left, l_int32 right, l_int32 top, l_int32 bot, l_uint32 val );
+LEPT_DLL extern l_int32 pixSetBorderRingVal ( PIX *pixs, l_int32 dist, l_uint32 val );
+LEPT_DLL extern l_int32 pixSetMirroredBorder ( PIX *pixs, l_int32 left, l_int32 right, l_int32 top, l_int32 bot );
+LEPT_DLL extern PIX * pixCopyBorder ( PIX *pixd, PIX *pixs, l_int32 left, l_int32 right, l_int32 top, l_int32 bot );
+LEPT_DLL extern PIX * pixAddBorder ( PIX *pixs, l_int32 npix, l_uint32 val );
+LEPT_DLL extern PIX * pixAddBlackOrWhiteBorder ( PIX *pixs, l_int32 left, l_int32 right, l_int32 top, l_int32 bot, l_int32 op );
+LEPT_DLL extern PIX * pixAddBorderGeneral ( PIX *pixs, l_int32 left, l_int32 right, l_int32 top, l_int32 bot, l_uint32 val );
+LEPT_DLL extern PIX * pixRemoveBorder ( PIX *pixs, l_int32 npix );
+LEPT_DLL extern PIX * pixRemoveBorderGeneral ( PIX *pixs, l_int32 left, l_int32 right, l_int32 top, l_int32 bot );
+LEPT_DLL extern PIX * pixRemoveBorderToSize ( PIX *pixs, l_int32 wd, l_int32 hd );
+LEPT_DLL extern PIX * pixAddMirroredBorder ( PIX *pixs, l_int32 left, l_int32 right, l_int32 top, l_int32 bot );
+LEPT_DLL extern PIX * pixAddRepeatedBorder ( PIX *pixs, l_int32 left, l_int32 right, l_int32 top, l_int32 bot );
+LEPT_DLL extern PIX * pixAddMixedBorder ( PIX *pixs, l_int32 left, l_int32 right, l_int32 top, l_int32 bot );
+LEPT_DLL extern PIX * pixAddContinuedBorder ( PIX *pixs, l_int32 left, l_int32 right, l_int32 top, l_int32 bot );
+LEPT_DLL extern l_int32 pixShiftAndTransferAlpha ( PIX *pixd, PIX *pixs, l_float32 shiftx, l_float32 shifty );
+LEPT_DLL extern PIX * pixDisplayLayersRGBA ( PIX *pixs, l_uint32 val, l_int32 maxw );
+LEPT_DLL extern PIX * pixCreateRGBImage ( PIX *pixr, PIX *pixg, PIX *pixb );
+LEPT_DLL extern PIX * pixGetRGBComponent ( PIX *pixs, l_int32 comp );
+LEPT_DLL extern l_int32 pixSetRGBComponent ( PIX *pixd, PIX *pixs, l_int32 comp );
+LEPT_DLL extern PIX * pixGetRGBComponentCmap ( PIX *pixs, l_int32 comp );
+LEPT_DLL extern l_int32 pixCopyRGBComponent ( PIX *pixd, PIX *pixs, l_int32 comp );
+LEPT_DLL extern l_int32 composeRGBPixel ( l_int32 rval, l_int32 gval, l_int32 bval, l_uint32 *ppixel );
+LEPT_DLL extern l_int32 composeRGBAPixel ( l_int32 rval, l_int32 gval, l_int32 bval, l_int32 aval, l_uint32 *ppixel );
+LEPT_DLL extern void extractRGBValues ( l_uint32 pixel, l_int32 *prval, l_int32 *pgval, l_int32 *pbval );
+LEPT_DLL extern void extractRGBAValues ( l_uint32 pixel, l_int32 *prval, l_int32 *pgval, l_int32 *pbval, l_int32 *paval );
+LEPT_DLL extern l_int32 extractMinMaxComponent ( l_uint32 pixel, l_int32 type );
+LEPT_DLL extern l_int32 pixGetRGBLine ( PIX *pixs, l_int32 row, l_uint8 *bufr, l_uint8 *bufg, l_uint8 *bufb );
+LEPT_DLL extern PIX * pixEndianByteSwapNew ( PIX *pixs );
+LEPT_DLL extern l_int32 pixEndianByteSwap ( PIX *pixs );
+LEPT_DLL extern l_int32 lineEndianByteSwap ( l_uint32 *datad, l_uint32 *datas, l_int32 wpl );
+LEPT_DLL extern PIX * pixEndianTwoByteSwapNew ( PIX *pixs );
+LEPT_DLL extern l_int32 pixEndianTwoByteSwap ( PIX *pixs );
+LEPT_DLL extern l_int32 pixGetRasterData ( PIX *pixs, l_uint8 **pdata, size_t *pnbytes );
+LEPT_DLL extern l_int32 pixAlphaIsOpaque ( PIX *pix, l_int32 *popaque );
+LEPT_DLL extern l_uint8 ** pixSetupByteProcessing ( PIX *pix, l_int32 *pw, l_int32 *ph );
+LEPT_DLL extern l_int32 pixCleanupByteProcessing ( PIX *pix, l_uint8 **lineptrs );
+LEPT_DLL extern void l_setAlphaMaskBorder ( l_float32 val1, l_float32 val2 );
+LEPT_DLL extern l_int32 pixSetMasked ( PIX *pixd, PIX *pixm, l_uint32 val );
+LEPT_DLL extern l_int32 pixSetMaskedGeneral ( PIX *pixd, PIX *pixm, l_uint32 val, l_int32 x, l_int32 y );
+LEPT_DLL extern l_int32 pixCombineMasked ( PIX *pixd, PIX *pixs, PIX *pixm );
+LEPT_DLL extern l_int32 pixCombineMaskedGeneral ( PIX *pixd, PIX *pixs, PIX *pixm, l_int32 x, l_int32 y );
+LEPT_DLL extern l_int32 pixPaintThroughMask ( PIX *pixd, PIX *pixm, l_int32 x, l_int32 y, l_uint32 val );
+LEPT_DLL extern l_int32 pixPaintSelfThroughMask ( PIX *pixd, PIX *pixm, l_int32 x, l_int32 y, l_int32 searchdir, l_int32 mindist, l_int32 tilesize, l_int32 ntiles, l_int32 distblend );
+LEPT_DLL extern PIX * pixMakeMaskFromVal ( PIX *pixs, l_int32 val );
+LEPT_DLL extern PIX * pixMakeMaskFromLUT ( PIX *pixs, l_int32 *tab );
+LEPT_DLL extern PIX * pixMakeArbMaskFromRGB ( PIX *pixs, l_float32 rc, l_float32 gc, l_float32 bc, l_float32 thresh );
+LEPT_DLL extern PIX * pixSetUnderTransparency ( PIX *pixs, l_uint32 val, l_int32 debug );
+LEPT_DLL extern PIX * pixMakeAlphaFromMask ( PIX *pixs, l_int32 dist, BOX **pbox );
+LEPT_DLL extern l_int32 pixGetColorNearMaskBoundary ( PIX *pixs, PIX *pixm, BOX *box, l_int32 dist, l_uint32 *pval, l_int32 debug );
+LEPT_DLL extern PIX * pixInvert ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern PIX * pixOr ( PIX *pixd, PIX *pixs1, PIX *pixs2 );
+LEPT_DLL extern PIX * pixAnd ( PIX *pixd, PIX *pixs1, PIX *pixs2 );
+LEPT_DLL extern PIX * pixXor ( PIX *pixd, PIX *pixs1, PIX *pixs2 );
+LEPT_DLL extern PIX * pixSubtract ( PIX *pixd, PIX *pixs1, PIX *pixs2 );
+LEPT_DLL extern l_int32 pixZero ( PIX *pix, l_int32 *pempty );
+LEPT_DLL extern l_int32 pixForegroundFraction ( PIX *pix, l_float32 *pfract );
+LEPT_DLL extern NUMA * pixaCountPixels ( PIXA *pixa );
+LEPT_DLL extern l_int32 pixCountPixels ( PIX *pix, l_int32 *pcount, l_int32 *tab8 );
+LEPT_DLL extern NUMA * pixCountByRow ( PIX *pix, BOX *box );
+LEPT_DLL extern NUMA * pixCountByColumn ( PIX *pix, BOX *box );
+LEPT_DLL extern NUMA * pixCountPixelsByRow ( PIX *pix, l_int32 *tab8 );
+LEPT_DLL extern NUMA * pixCountPixelsByColumn ( PIX *pix );
+LEPT_DLL extern l_int32 pixCountPixelsInRow ( PIX *pix, l_int32 row, l_int32 *pcount, l_int32 *tab8 );
+LEPT_DLL extern NUMA * pixGetMomentByColumn ( PIX *pix, l_int32 order );
+LEPT_DLL extern l_int32 pixThresholdPixelSum ( PIX *pix, l_int32 thresh, l_int32 *pabove, l_int32 *tab8 );
+LEPT_DLL extern l_int32 * makePixelSumTab8 ( void );
+LEPT_DLL extern l_int32 * makePixelCentroidTab8 ( void );
+LEPT_DLL extern NUMA * pixAverageByRow ( PIX *pix, BOX *box, l_int32 type );
+LEPT_DLL extern NUMA * pixAverageByColumn ( PIX *pix, BOX *box, l_int32 type );
+LEPT_DLL extern l_int32 pixAverageInRect ( PIX *pix, BOX *box, l_float32 *pave );
+LEPT_DLL extern NUMA * pixVarianceByRow ( PIX *pix, BOX *box );
+LEPT_DLL extern NUMA * pixVarianceByColumn ( PIX *pix, BOX *box );
+LEPT_DLL extern l_int32 pixVarianceInRect ( PIX *pix, BOX *box, l_float32 *prootvar );
+LEPT_DLL extern NUMA * pixAbsDiffByRow ( PIX *pix, BOX *box );
+LEPT_DLL extern NUMA * pixAbsDiffByColumn ( PIX *pix, BOX *box );
+LEPT_DLL extern l_int32 pixAbsDiffInRect ( PIX *pix, BOX *box, l_int32 dir, l_float32 *pabsdiff );
+LEPT_DLL extern l_int32 pixAbsDiffOnLine ( PIX *pix, l_int32 x1, l_int32 y1, l_int32 x2, l_int32 y2, l_float32 *pabsdiff );
+LEPT_DLL extern l_int32 pixCountArbInRect ( PIX *pixs, BOX *box, l_int32 val, l_int32 factor, l_int32 *pcount );
+LEPT_DLL extern PIX * pixMirroredTiling ( PIX *pixs, l_int32 w, l_int32 h );
+LEPT_DLL extern l_int32 pixFindRepCloseTile ( PIX *pixs, BOX *box, l_int32 searchdir, l_int32 mindist, l_int32 tsize, l_int32 ntiles, BOX **pboxtile, l_int32 debug );
+LEPT_DLL extern NUMA * pixGetGrayHistogram ( PIX *pixs, l_int32 factor );
+LEPT_DLL extern NUMA * pixGetGrayHistogramMasked ( PIX *pixs, PIX *pixm, l_int32 x, l_int32 y, l_int32 factor );
+LEPT_DLL extern NUMA * pixGetGrayHistogramInRect ( PIX *pixs, BOX *box, l_int32 factor );
+LEPT_DLL extern NUMAA * pixGetGrayHistogramTiled ( PIX *pixs, l_int32 factor, l_int32 nx, l_int32 ny );
+LEPT_DLL extern l_int32 pixGetColorHistogram ( PIX *pixs, l_int32 factor, NUMA **pnar, NUMA **pnag, NUMA **pnab );
+LEPT_DLL extern l_int32 pixGetColorHistogramMasked ( PIX *pixs, PIX *pixm, l_int32 x, l_int32 y, l_int32 factor, NUMA **pnar, NUMA **pnag, NUMA **pnab );
+LEPT_DLL extern NUMA * pixGetCmapHistogram ( PIX *pixs, l_int32 factor );
+LEPT_DLL extern NUMA * pixGetCmapHistogramMasked ( PIX *pixs, PIX *pixm, l_int32 x, l_int32 y, l_int32 factor );
+LEPT_DLL extern NUMA * pixGetCmapHistogramInRect ( PIX *pixs, BOX *box, l_int32 factor );
+LEPT_DLL extern l_int32 pixCountRGBColors ( PIX *pixs );
+LEPT_DLL extern L_AMAP * pixGetColorAmapHistogram ( PIX *pixs, l_int32 factor );
+LEPT_DLL extern l_int32 amapGetCountForColor ( L_AMAP *amap, l_uint32 val );
+LEPT_DLL extern l_int32 pixGetRankValue ( PIX *pixs, l_int32 factor, l_float32 rank, l_uint32 *pvalue );
+LEPT_DLL extern l_int32 pixGetRankValueMaskedRGB ( PIX *pixs, PIX *pixm, l_int32 x, l_int32 y, l_int32 factor, l_float32 rank, l_float32 *prval, l_float32 *pgval, l_float32 *pbval );
+LEPT_DLL extern l_int32 pixGetRankValueMasked ( PIX *pixs, PIX *pixm, l_int32 x, l_int32 y, l_int32 factor, l_float32 rank, l_float32 *pval, NUMA **pna );
+LEPT_DLL extern l_int32 pixGetAverageValue ( PIX *pixs, l_int32 factor, l_int32 type, l_uint32 *pvalue );
+LEPT_DLL extern l_int32 pixGetAverageMaskedRGB ( PIX *pixs, PIX *pixm, l_int32 x, l_int32 y, l_int32 factor, l_int32 type, l_float32 *prval, l_float32 *pgval, l_float32 *pbval );
+LEPT_DLL extern l_int32 pixGetAverageMasked ( PIX *pixs, PIX *pixm, l_int32 x, l_int32 y, l_int32 factor, l_int32 type, l_float32 *pval );
+LEPT_DLL extern l_int32 pixGetAverageTiledRGB ( PIX *pixs, l_int32 sx, l_int32 sy, l_int32 type, PIX **ppixr, PIX **ppixg, PIX **ppixb );
+LEPT_DLL extern PIX * pixGetAverageTiled ( PIX *pixs, l_int32 sx, l_int32 sy, l_int32 type );
+LEPT_DLL extern l_int32 pixRowStats ( PIX *pixs, BOX *box, NUMA **pnamean, NUMA **pnamedian, NUMA **pnamode, NUMA **pnamodecount, NUMA **pnavar, NUMA **pnarootvar );
+LEPT_DLL extern l_int32 pixColumnStats ( PIX *pixs, BOX *box, NUMA **pnamean, NUMA **pnamedian, NUMA **pnamode, NUMA **pnamodecount, NUMA **pnavar, NUMA **pnarootvar );
+LEPT_DLL extern l_int32 pixGetRangeValues ( PIX *pixs, l_int32 factor, l_int32 color, l_int32 *pminval, l_int32 *pmaxval );
+LEPT_DLL extern l_int32 pixGetExtremeValue ( PIX *pixs, l_int32 factor, l_int32 type, l_int32 *prval, l_int32 *pgval, l_int32 *pbval, l_int32 *pgrayval );
+LEPT_DLL extern l_int32 pixGetMaxValueInRect ( PIX *pixs, BOX *box, l_uint32 *pmaxval, l_int32 *pxmax, l_int32 *pymax );
+LEPT_DLL extern l_int32 pixGetBinnedComponentRange ( PIX *pixs, l_int32 nbins, l_int32 factor, l_int32 color, l_int32 *pminval, l_int32 *pmaxval, l_uint32 **pcarray, l_int32 fontsize );
+LEPT_DLL extern l_int32 pixGetRankColorArray ( PIX *pixs, l_int32 nbins, l_int32 type, l_int32 factor, l_uint32 **pcarray, l_int32 debugflag, l_int32 fontsize );
+LEPT_DLL extern l_int32 pixGetBinnedColor ( PIX *pixs, PIX *pixg, l_int32 factor, l_int32 nbins, NUMA *nalut, l_uint32 **pcarray, l_int32 debugflag );
+LEPT_DLL extern PIX * pixDisplayColorArray ( l_uint32 *carray, l_int32 ncolors, l_int32 side, l_int32 ncols, l_int32 fontsize );
+LEPT_DLL extern PIX * pixRankBinByStrip ( PIX *pixs, l_int32 direction, l_int32 size, l_int32 nbins, l_int32 type );
+LEPT_DLL extern PIX * pixaGetAlignedStats ( PIXA *pixa, l_int32 type, l_int32 nbins, l_int32 thresh );
+LEPT_DLL extern l_int32 pixaExtractColumnFromEachPix ( PIXA *pixa, l_int32 col, PIX *pixd );
+LEPT_DLL extern l_int32 pixGetRowStats ( PIX *pixs, l_int32 type, l_int32 nbins, l_int32 thresh, l_float32 *colvect );
+LEPT_DLL extern l_int32 pixGetColumnStats ( PIX *pixs, l_int32 type, l_int32 nbins, l_int32 thresh, l_float32 *rowvect );
+LEPT_DLL extern l_int32 pixSetPixelColumn ( PIX *pix, l_int32 col, l_float32 *colvect );
+LEPT_DLL extern l_int32 pixThresholdForFgBg ( PIX *pixs, l_int32 factor, l_int32 thresh, l_int32 *pfgval, l_int32 *pbgval );
+LEPT_DLL extern l_int32 pixSplitDistributionFgBg ( PIX *pixs, l_float32 scorefract, l_int32 factor, l_int32 *pthresh, l_int32 *pfgval, l_int32 *pbgval, PIX **ppixdb );
+LEPT_DLL extern l_int32 pixaFindDimensions ( PIXA *pixa, NUMA **pnaw, NUMA **pnah );
+LEPT_DLL extern l_int32 pixFindAreaPerimRatio ( PIX *pixs, l_int32 *tab, l_float32 *pfract );
+LEPT_DLL extern NUMA * pixaFindPerimToAreaRatio ( PIXA *pixa );
+LEPT_DLL extern l_int32 pixFindPerimToAreaRatio ( PIX *pixs, l_int32 *tab, l_float32 *pfract );
+LEPT_DLL extern NUMA * pixaFindPerimSizeRatio ( PIXA *pixa );
+LEPT_DLL extern l_int32 pixFindPerimSizeRatio ( PIX *pixs, l_int32 *tab, l_float32 *pratio );
+LEPT_DLL extern NUMA * pixaFindAreaFraction ( PIXA *pixa );
+LEPT_DLL extern l_int32 pixFindAreaFraction ( PIX *pixs, l_int32 *tab, l_float32 *pfract );
+LEPT_DLL extern NUMA * pixaFindAreaFractionMasked ( PIXA *pixa, PIX *pixm, l_int32 debug );
+LEPT_DLL extern l_int32 pixFindAreaFractionMasked ( PIX *pixs, BOX *box, PIX *pixm, l_int32 *tab, l_float32 *pfract );
+LEPT_DLL extern NUMA * pixaFindWidthHeightRatio ( PIXA *pixa );
+LEPT_DLL extern NUMA * pixaFindWidthHeightProduct ( PIXA *pixa );
+LEPT_DLL extern l_int32 pixFindOverlapFraction ( PIX *pixs1, PIX *pixs2, l_int32 x2, l_int32 y2, l_int32 *tab, l_float32 *pratio, l_int32 *pnoverlap );
+LEPT_DLL extern BOXA * pixFindRectangleComps ( PIX *pixs, l_int32 dist, l_int32 minw, l_int32 minh );
+LEPT_DLL extern l_int32 pixConformsToRectangle ( PIX *pixs, BOX *box, l_int32 dist, l_int32 *pconforms );
+LEPT_DLL extern PIXA * pixClipRectangles ( PIX *pixs, BOXA *boxa );
+LEPT_DLL extern PIX * pixClipRectangle ( PIX *pixs, BOX *box, BOX **pboxc );
+LEPT_DLL extern PIX * pixClipMasked ( PIX *pixs, PIX *pixm, l_int32 x, l_int32 y, l_uint32 outval );
+LEPT_DLL extern l_int32 pixCropToMatch ( PIX *pixs1, PIX *pixs2, PIX **ppixd1, PIX **ppixd2 );
+LEPT_DLL extern PIX * pixCropToSize ( PIX *pixs, l_int32 w, l_int32 h );
+LEPT_DLL extern PIX * pixResizeToMatch ( PIX *pixs, PIX *pixt, l_int32 w, l_int32 h );
+LEPT_DLL extern PIX * pixMakeFrameMask ( l_int32 w, l_int32 h, l_float32 hf1, l_float32 hf2, l_float32 vf1, l_float32 vf2 );
+LEPT_DLL extern l_int32 pixFractionFgInMask ( PIX *pix1, PIX *pix2, l_float32 *pfract );
+LEPT_DLL extern l_int32 pixClipToForeground ( PIX *pixs, PIX **ppixd, BOX **pbox );
+LEPT_DLL extern l_int32 pixTestClipToForeground ( PIX *pixs, l_int32 *pcanclip );
+LEPT_DLL extern l_int32 pixClipBoxToForeground ( PIX *pixs, BOX *boxs, PIX **ppixd, BOX **pboxd );
+LEPT_DLL extern l_int32 pixScanForForeground ( PIX *pixs, BOX *box, l_int32 scanflag, l_int32 *ploc );
+LEPT_DLL extern l_int32 pixClipBoxToEdges ( PIX *pixs, BOX *boxs, l_int32 lowthresh, l_int32 highthresh, l_int32 maxwidth, l_int32 factor, PIX **ppixd, BOX **pboxd );
+LEPT_DLL extern l_int32 pixScanForEdge ( PIX *pixs, BOX *box, l_int32 lowthresh, l_int32 highthresh, l_int32 maxwidth, l_int32 factor, l_int32 scanflag, l_int32 *ploc );
+LEPT_DLL extern NUMA * pixExtractOnLine ( PIX *pixs, l_int32 x1, l_int32 y1, l_int32 x2, l_int32 y2, l_int32 factor );
+LEPT_DLL extern l_float32 pixAverageOnLine ( PIX *pixs, l_int32 x1, l_int32 y1, l_int32 x2, l_int32 y2, l_int32 factor );
+LEPT_DLL extern NUMA * pixAverageIntensityProfile ( PIX *pixs, l_float32 fract, l_int32 dir, l_int32 first, l_int32 last, l_int32 factor1, l_int32 factor2 );
+LEPT_DLL extern NUMA * pixReversalProfile ( PIX *pixs, l_float32 fract, l_int32 dir, l_int32 first, l_int32 last, l_int32 minreversal, l_int32 factor1, l_int32 factor2 );
+LEPT_DLL extern l_int32 pixWindowedVarianceOnLine ( PIX *pixs, l_int32 dir, l_int32 loc, l_int32 c1, l_int32 c2, l_int32 size, NUMA **pnad );
+LEPT_DLL extern l_int32 pixMinMaxNearLine ( PIX *pixs, l_int32 x1, l_int32 y1, l_int32 x2, l_int32 y2, l_int32 dist, l_int32 direction, NUMA **pnamin, NUMA **pnamax, l_float32 *pminave, l_float32 *pmaxave );
+LEPT_DLL extern PIX * pixRankRowTransform ( PIX *pixs );
+LEPT_DLL extern PIX * pixRankColumnTransform ( PIX *pixs );
+LEPT_DLL extern PIXA * pixaCreate ( l_int32 n );
+LEPT_DLL extern PIXA * pixaCreateFromPix ( PIX *pixs, l_int32 n, l_int32 cellw, l_int32 cellh );
+LEPT_DLL extern PIXA * pixaCreateFromBoxa ( PIX *pixs, BOXA *boxa, l_int32 *pcropwarn );
+LEPT_DLL extern PIXA * pixaSplitPix ( PIX *pixs, l_int32 nx, l_int32 ny, l_int32 borderwidth, l_uint32 bordercolor );
+LEPT_DLL extern void pixaDestroy ( PIXA **ppixa );
+LEPT_DLL extern PIXA * pixaCopy ( PIXA *pixa, l_int32 copyflag );
+LEPT_DLL extern l_int32 pixaAddPix ( PIXA *pixa, PIX *pix, l_int32 copyflag );
+LEPT_DLL extern l_int32 pixaAddBox ( PIXA *pixa, BOX *box, l_int32 copyflag );
+LEPT_DLL extern l_int32 pixaExtendArrayToSize ( PIXA *pixa, l_int32 size );
+LEPT_DLL extern l_int32 pixaGetCount ( PIXA *pixa );
+LEPT_DLL extern l_int32 pixaChangeRefcount ( PIXA *pixa, l_int32 delta );
+LEPT_DLL extern PIX * pixaGetPix ( PIXA *pixa, l_int32 index, l_int32 accesstype );
+LEPT_DLL extern l_int32 pixaGetPixDimensions ( PIXA *pixa, l_int32 index, l_int32 *pw, l_int32 *ph, l_int32 *pd );
+LEPT_DLL extern BOXA * pixaGetBoxa ( PIXA *pixa, l_int32 accesstype );
+LEPT_DLL extern l_int32 pixaGetBoxaCount ( PIXA *pixa );
+LEPT_DLL extern BOX * pixaGetBox ( PIXA *pixa, l_int32 index, l_int32 accesstype );
+LEPT_DLL extern l_int32 pixaGetBoxGeometry ( PIXA *pixa, l_int32 index, l_int32 *px, l_int32 *py, l_int32 *pw, l_int32 *ph );
+LEPT_DLL extern l_int32 pixaSetBoxa ( PIXA *pixa, BOXA *boxa, l_int32 accesstype );
+LEPT_DLL extern PIX ** pixaGetPixArray ( PIXA *pixa );
+LEPT_DLL extern l_int32 pixaVerifyDepth ( PIXA *pixa, l_int32 *pmaxdepth );
+LEPT_DLL extern l_int32 pixaIsFull ( PIXA *pixa, l_int32 *pfullpa, l_int32 *pfullba );
+LEPT_DLL extern l_int32 pixaCountText ( PIXA *pixa, l_int32 *pntext );
+LEPT_DLL extern l_int32 pixaSetText ( PIXA *pixa, SARRAY *sa );
+LEPT_DLL extern void *** pixaGetLinePtrs ( PIXA *pixa, l_int32 *psize );
+LEPT_DLL extern l_int32 pixaWriteStreamInfo ( FILE *fp, PIXA *pixa );
+LEPT_DLL extern l_int32 pixaReplacePix ( PIXA *pixa, l_int32 index, PIX *pix, BOX *box );
+LEPT_DLL extern l_int32 pixaInsertPix ( PIXA *pixa, l_int32 index, PIX *pixs, BOX *box );
+LEPT_DLL extern l_int32 pixaRemovePix ( PIXA *pixa, l_int32 index );
+LEPT_DLL extern l_int32 pixaRemovePixAndSave ( PIXA *pixa, l_int32 index, PIX **ppix, BOX **pbox );
+LEPT_DLL extern l_int32 pixaInitFull ( PIXA *pixa, PIX *pix, BOX *box );
+LEPT_DLL extern l_int32 pixaClear ( PIXA *pixa );
+LEPT_DLL extern l_int32 pixaJoin ( PIXA *pixad, PIXA *pixas, l_int32 istart, l_int32 iend );
+LEPT_DLL extern PIXA * pixaInterleave ( PIXA *pixa1, PIXA *pixa2, l_int32 copyflag );
+LEPT_DLL extern l_int32 pixaaJoin ( PIXAA *paad, PIXAA *paas, l_int32 istart, l_int32 iend );
+LEPT_DLL extern PIXAA * pixaaCreate ( l_int32 n );
+LEPT_DLL extern PIXAA * pixaaCreateFromPixa ( PIXA *pixa, l_int32 n, l_int32 type, l_int32 copyflag );
+LEPT_DLL extern void pixaaDestroy ( PIXAA **ppaa );
+LEPT_DLL extern l_int32 pixaaAddPixa ( PIXAA *paa, PIXA *pixa, l_int32 copyflag );
+LEPT_DLL extern l_int32 pixaaExtendArray ( PIXAA *paa );
+LEPT_DLL extern l_int32 pixaaAddPix ( PIXAA *paa, l_int32 index, PIX *pix, BOX *box, l_int32 copyflag );
+LEPT_DLL extern l_int32 pixaaAddBox ( PIXAA *paa, BOX *box, l_int32 copyflag );
+LEPT_DLL extern l_int32 pixaaGetCount ( PIXAA *paa, NUMA **pna );
+LEPT_DLL extern PIXA * pixaaGetPixa ( PIXAA *paa, l_int32 index, l_int32 accesstype );
+LEPT_DLL extern BOXA * pixaaGetBoxa ( PIXAA *paa, l_int32 accesstype );
+LEPT_DLL extern PIX * pixaaGetPix ( PIXAA *paa, l_int32 index, l_int32 ipix, l_int32 accessflag );
+LEPT_DLL extern l_int32 pixaaVerifyDepth ( PIXAA *paa, l_int32 *pmaxdepth );
+LEPT_DLL extern l_int32 pixaaIsFull ( PIXAA *paa, l_int32 *pfull );
+LEPT_DLL extern l_int32 pixaaInitFull ( PIXAA *paa, PIXA *pixa );
+LEPT_DLL extern l_int32 pixaaReplacePixa ( PIXAA *paa, l_int32 index, PIXA *pixa );
+LEPT_DLL extern l_int32 pixaaClear ( PIXAA *paa );
+LEPT_DLL extern l_int32 pixaaTruncate ( PIXAA *paa );
+LEPT_DLL extern PIXA * pixaRead ( const char *filename );
+LEPT_DLL extern PIXA * pixaReadStream ( FILE *fp );
+LEPT_DLL extern PIXA * pixaReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 pixaWrite ( const char *filename, PIXA *pixa );
+LEPT_DLL extern l_int32 pixaWriteStream ( FILE *fp, PIXA *pixa );
+LEPT_DLL extern l_int32 pixaWriteMem ( l_uint8 **pdata, size_t *psize, PIXA *pixa );
+LEPT_DLL extern PIXA * pixaReadBoth ( const char *filename );
+LEPT_DLL extern PIXAA * pixaaReadFromFiles ( const char *dirname, const char *substr, l_int32 first, l_int32 nfiles );
+LEPT_DLL extern PIXAA * pixaaRead ( const char *filename );
+LEPT_DLL extern PIXAA * pixaaReadStream ( FILE *fp );
+LEPT_DLL extern PIXAA * pixaaReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 pixaaWrite ( const char *filename, PIXAA *paa );
+LEPT_DLL extern l_int32 pixaaWriteStream ( FILE *fp, PIXAA *paa );
+LEPT_DLL extern l_int32 pixaaWriteMem ( l_uint8 **pdata, size_t *psize, PIXAA *paa );
+LEPT_DLL extern PIXACC * pixaccCreate ( l_int32 w, l_int32 h, l_int32 negflag );
+LEPT_DLL extern PIXACC * pixaccCreateFromPix ( PIX *pix, l_int32 negflag );
+LEPT_DLL extern void pixaccDestroy ( PIXACC **ppixacc );
+LEPT_DLL extern PIX * pixaccFinal ( PIXACC *pixacc, l_int32 outdepth );
+LEPT_DLL extern PIX * pixaccGetPix ( PIXACC *pixacc );
+LEPT_DLL extern l_int32 pixaccGetOffset ( PIXACC *pixacc );
+LEPT_DLL extern l_int32 pixaccAdd ( PIXACC *pixacc, PIX *pix );
+LEPT_DLL extern l_int32 pixaccSubtract ( PIXACC *pixacc, PIX *pix );
+LEPT_DLL extern l_int32 pixaccMultConst ( PIXACC *pixacc, l_float32 factor );
+LEPT_DLL extern l_int32 pixaccMultConstAccumulate ( PIXACC *pixacc, PIX *pix, l_float32 factor );
+LEPT_DLL extern PIX * pixSelectBySize ( PIX *pixs, l_int32 width, l_int32 height, l_int32 connectivity, l_int32 type, l_int32 relation, l_int32 *pchanged );
+LEPT_DLL extern PIXA * pixaSelectBySize ( PIXA *pixas, l_int32 width, l_int32 height, l_int32 type, l_int32 relation, l_int32 *pchanged );
+LEPT_DLL extern NUMA * pixaMakeSizeIndicator ( PIXA *pixa, l_int32 width, l_int32 height, l_int32 type, l_int32 relation );
+LEPT_DLL extern PIX * pixSelectByPerimToAreaRatio ( PIX *pixs, l_float32 thresh, l_int32 connectivity, l_int32 type, l_int32 *pchanged );
+LEPT_DLL extern PIXA * pixaSelectByPerimToAreaRatio ( PIXA *pixas, l_float32 thresh, l_int32 type, l_int32 *pchanged );
+LEPT_DLL extern PIX * pixSelectByPerimSizeRatio ( PIX *pixs, l_float32 thresh, l_int32 connectivity, l_int32 type, l_int32 *pchanged );
+LEPT_DLL extern PIXA * pixaSelectByPerimSizeRatio ( PIXA *pixas, l_float32 thresh, l_int32 type, l_int32 *pchanged );
+LEPT_DLL extern PIX * pixSelectByAreaFraction ( PIX *pixs, l_float32 thresh, l_int32 connectivity, l_int32 type, l_int32 *pchanged );
+LEPT_DLL extern PIXA * pixaSelectByAreaFraction ( PIXA *pixas, l_float32 thresh, l_int32 type, l_int32 *pchanged );
+LEPT_DLL extern PIX * pixSelectByWidthHeightRatio ( PIX *pixs, l_float32 thresh, l_int32 connectivity, l_int32 type, l_int32 *pchanged );
+LEPT_DLL extern PIXA * pixaSelectByWidthHeightRatio ( PIXA *pixas, l_float32 thresh, l_int32 type, l_int32 *pchanged );
+LEPT_DLL extern PIXA * pixaSelectByNumConnComp ( PIXA *pixas, l_int32 nmin, l_int32 nmax, l_int32 connectivity, l_int32 *pchanged );
+LEPT_DLL extern PIXA * pixaSelectWithIndicator ( PIXA *pixas, NUMA *na, l_int32 *pchanged );
+LEPT_DLL extern l_int32 pixRemoveWithIndicator ( PIX *pixs, PIXA *pixa, NUMA *na );
+LEPT_DLL extern l_int32 pixAddWithIndicator ( PIX *pixs, PIXA *pixa, NUMA *na );
+LEPT_DLL extern PIXA * pixaSelectWithString ( PIXA *pixas, const char *str, l_int32 *perror );
+LEPT_DLL extern PIX * pixaRenderComponent ( PIX *pixs, PIXA *pixa, l_int32 index );
+LEPT_DLL extern PIXA * pixaSort ( PIXA *pixas, l_int32 sorttype, l_int32 sortorder, NUMA **pnaindex, l_int32 copyflag );
+LEPT_DLL extern PIXA * pixaBinSort ( PIXA *pixas, l_int32 sorttype, l_int32 sortorder, NUMA **pnaindex, l_int32 copyflag );
+LEPT_DLL extern PIXA * pixaSortByIndex ( PIXA *pixas, NUMA *naindex, l_int32 copyflag );
+LEPT_DLL extern PIXAA * pixaSort2dByIndex ( PIXA *pixas, NUMAA *naa, l_int32 copyflag );
+LEPT_DLL extern PIXA * pixaSelectRange ( PIXA *pixas, l_int32 first, l_int32 last, l_int32 copyflag );
+LEPT_DLL extern PIXAA * pixaaSelectRange ( PIXAA *paas, l_int32 first, l_int32 last, l_int32 copyflag );
+LEPT_DLL extern PIXAA * pixaaScaleToSize ( PIXAA *paas, l_int32 wd, l_int32 hd );
+LEPT_DLL extern PIXAA * pixaaScaleToSizeVar ( PIXAA *paas, NUMA *nawd, NUMA *nahd );
+LEPT_DLL extern PIXA * pixaScaleToSize ( PIXA *pixas, l_int32 wd, l_int32 hd );
+LEPT_DLL extern PIXA * pixaScaleToSizeRel ( PIXA *pixas, l_int32 delw, l_int32 delh );
+LEPT_DLL extern PIXA * pixaScale ( PIXA *pixas, l_float32 scalex, l_float32 scaley );
+LEPT_DLL extern PIXA * pixaAddBorderGeneral ( PIXA *pixad, PIXA *pixas, l_int32 left, l_int32 right, l_int32 top, l_int32 bot, l_uint32 val );
+LEPT_DLL extern PIXA * pixaaFlattenToPixa ( PIXAA *paa, NUMA **pnaindex, l_int32 copyflag );
+LEPT_DLL extern l_int32 pixaaSizeRange ( PIXAA *paa, l_int32 *pminw, l_int32 *pminh, l_int32 *pmaxw, l_int32 *pmaxh );
+LEPT_DLL extern l_int32 pixaSizeRange ( PIXA *pixa, l_int32 *pminw, l_int32 *pminh, l_int32 *pmaxw, l_int32 *pmaxh );
+LEPT_DLL extern PIXA * pixaClipToPix ( PIXA *pixas, PIX *pixs );
+LEPT_DLL extern l_int32 pixaClipToForeground ( PIXA *pixas, PIXA **ppixad, BOXA **pboxa );
+LEPT_DLL extern l_int32 pixaGetRenderingDepth ( PIXA *pixa, l_int32 *pdepth );
+LEPT_DLL extern l_int32 pixaHasColor ( PIXA *pixa, l_int32 *phascolor );
+LEPT_DLL extern l_int32 pixaAnyColormaps ( PIXA *pixa, l_int32 *phascmap );
+LEPT_DLL extern l_int32 pixaGetDepthInfo ( PIXA *pixa, l_int32 *pmaxdepth, l_int32 *psame );
+LEPT_DLL extern PIXA * pixaConvertToSameDepth ( PIXA *pixas );
+LEPT_DLL extern l_int32 pixaEqual ( PIXA *pixa1, PIXA *pixa2, l_int32 maxdist, NUMA **pnaindex, l_int32 *psame );
+LEPT_DLL extern PIXA * pixaRotateOrth ( PIXA *pixas, l_int32 rotation );
+LEPT_DLL extern l_int32 pixaSetFullSizeBoxa ( PIXA *pixa );
+LEPT_DLL extern PIX * pixaDisplay ( PIXA *pixa, l_int32 w, l_int32 h );
+LEPT_DLL extern PIX * pixaDisplayOnColor ( PIXA *pixa, l_int32 w, l_int32 h, l_uint32 bgcolor );
+LEPT_DLL extern PIX * pixaDisplayRandomCmap ( PIXA *pixa, l_int32 w, l_int32 h );
+LEPT_DLL extern PIX * pixaDisplayLinearly ( PIXA *pixas, l_int32 direction, l_float32 scalefactor, l_int32 background, l_int32 spacing, l_int32 border, BOXA **pboxa );
+LEPT_DLL extern PIX * pixaDisplayOnLattice ( PIXA *pixa, l_int32 cellw, l_int32 cellh, l_int32 *pncols, BOXA **pboxa );
+LEPT_DLL extern PIX * pixaDisplayUnsplit ( PIXA *pixa, l_int32 nx, l_int32 ny, l_int32 borderwidth, l_uint32 bordercolor );
+LEPT_DLL extern PIX * pixaDisplayTiled ( PIXA *pixa, l_int32 maxwidth, l_int32 background, l_int32 spacing );
+LEPT_DLL extern PIX * pixaDisplayTiledInRows ( PIXA *pixa, l_int32 outdepth, l_int32 maxwidth, l_float32 scalefactor, l_int32 background, l_int32 spacing, l_int32 border );
+LEPT_DLL extern PIX * pixaDisplayTiledInColumns ( PIXA *pixas, l_int32 nx, l_float32 scalefactor, l_int32 spacing, l_int32 border );
+LEPT_DLL extern PIX * pixaDisplayTiledAndScaled ( PIXA *pixa, l_int32 outdepth, l_int32 tilewidth, l_int32 ncols, l_int32 background, l_int32 spacing, l_int32 border );
+LEPT_DLL extern PIX * pixaDisplayTiledWithText ( PIXA *pixa, l_int32 maxwidth, l_float32 scalefactor, l_int32 spacing, l_int32 border, l_int32 fontsize, l_uint32 textcolor );
+LEPT_DLL extern PIX * pixaDisplayTiledByIndex ( PIXA *pixa, NUMA *na, l_int32 width, l_int32 spacing, l_int32 border, l_int32 fontsize, l_uint32 textcolor );
+LEPT_DLL extern PIX * pixaaDisplay ( PIXAA *paa, l_int32 w, l_int32 h );
+LEPT_DLL extern PIX * pixaaDisplayByPixa ( PIXAA *paa, l_int32 xspace, l_int32 yspace, l_int32 maxw );
+LEPT_DLL extern PIXA * pixaaDisplayTiledAndScaled ( PIXAA *paa, l_int32 outdepth, l_int32 tilewidth, l_int32 ncols, l_int32 background, l_int32 spacing, l_int32 border );
+LEPT_DLL extern PIXA * pixaConvertTo1 ( PIXA *pixas, l_int32 thresh );
+LEPT_DLL extern PIXA * pixaConvertTo8 ( PIXA *pixas, l_int32 cmapflag );
+LEPT_DLL extern PIXA * pixaConvertTo8Color ( PIXA *pixas, l_int32 dither );
+LEPT_DLL extern PIXA * pixaConvertTo32 ( PIXA *pixas );
+LEPT_DLL extern PIXA * pixaConstrainedSelect ( PIXA *pixas, l_int32 first, l_int32 last, l_int32 nmax, l_int32 use_pairs, l_int32 copyflag );
+LEPT_DLL extern l_int32 pixaSelectToPdf ( PIXA *pixas, l_int32 first, l_int32 last, l_int32 res, l_float32 scalefactor, l_int32 type, l_int32 quality, l_uint32 color, l_int32 fontsize, const char *fileout );
+LEPT_DLL extern PIXA * pixaDisplayMultiTiled ( PIXA *pixas, l_int32 nx, l_int32 ny, l_int32 maxw, l_int32 maxh, l_float32 scalefactor, l_int32 spacing, l_int32 border );
+LEPT_DLL extern l_int32 pixaSplitIntoFiles ( PIXA *pixas, l_int32 nsplit, l_float32 scale, l_int32 outwidth, l_int32 write_pixa, l_int32 write_pix, l_int32 write_pdf );
+LEPT_DLL extern l_int32 convertToNUpFiles ( const char *dir, const char *substr, l_int32 nx, l_int32 ny, l_int32 tw, l_int32 spacing, l_int32 border, l_int32 fontsize, const char *outdir );
+LEPT_DLL extern PIXA * convertToNUpPixa ( const char *dir, const char *substr, l_int32 nx, l_int32 ny, l_int32 tw, l_int32 spacing, l_int32 border, l_int32 fontsize );
+LEPT_DLL extern PIXA * pixaConvertToNUpPixa ( PIXA *pixas, SARRAY *sa, l_int32 nx, l_int32 ny, l_int32 tw, l_int32 spacing, l_int32 border, l_int32 fontsize );
+LEPT_DLL extern l_int32 pixaCompareInPdf ( PIXA *pixa1, PIXA *pixa2, l_int32 nx, l_int32 ny, l_int32 tw, l_int32 spacing, l_int32 border, l_int32 fontsize, const char *fileout );
+LEPT_DLL extern l_int32 pmsCreate ( size_t minsize, size_t smallest, NUMA *numalloc, const char *logfile );
+LEPT_DLL extern void pmsDestroy (  );
+LEPT_DLL extern void * pmsCustomAlloc ( size_t nbytes );
+LEPT_DLL extern void pmsCustomDealloc ( void *data );
+LEPT_DLL extern void * pmsGetAlloc ( size_t nbytes );
+LEPT_DLL extern l_int32 pmsGetLevelForAlloc ( size_t nbytes, l_int32 *plevel );
+LEPT_DLL extern l_int32 pmsGetLevelForDealloc ( void *data, l_int32 *plevel );
+LEPT_DLL extern void pmsLogInfo (  );
+LEPT_DLL extern l_int32 pixAddConstantGray ( PIX *pixs, l_int32 val );
+LEPT_DLL extern l_int32 pixMultConstantGray ( PIX *pixs, l_float32 val );
+LEPT_DLL extern PIX * pixAddGray ( PIX *pixd, PIX *pixs1, PIX *pixs2 );
+LEPT_DLL extern PIX * pixSubtractGray ( PIX *pixd, PIX *pixs1, PIX *pixs2 );
+LEPT_DLL extern PIX * pixThresholdToValue ( PIX *pixd, PIX *pixs, l_int32 threshval, l_int32 setval );
+LEPT_DLL extern PIX * pixInitAccumulate ( l_int32 w, l_int32 h, l_uint32 offset );
+LEPT_DLL extern PIX * pixFinalAccumulate ( PIX *pixs, l_uint32 offset, l_int32 depth );
+LEPT_DLL extern PIX * pixFinalAccumulateThreshold ( PIX *pixs, l_uint32 offset, l_uint32 threshold );
+LEPT_DLL extern l_int32 pixAccumulate ( PIX *pixd, PIX *pixs, l_int32 op );
+LEPT_DLL extern l_int32 pixMultConstAccumulate ( PIX *pixs, l_float32 factor, l_uint32 offset );
+LEPT_DLL extern PIX * pixAbsDifference ( PIX *pixs1, PIX *pixs2 );
+LEPT_DLL extern PIX * pixAddRGB ( PIX *pixs1, PIX *pixs2 );
+LEPT_DLL extern PIX * pixMinOrMax ( PIX *pixd, PIX *pixs1, PIX *pixs2, l_int32 type );
+LEPT_DLL extern PIX * pixMaxDynamicRange ( PIX *pixs, l_int32 type );
+LEPT_DLL extern PIX * pixMaxDynamicRangeRGB ( PIX *pixs, l_int32 type );
+LEPT_DLL extern l_uint32 linearScaleRGBVal ( l_uint32 sval, l_float32 factor );
+LEPT_DLL extern l_uint32 logScaleRGBVal ( l_uint32 sval, l_float32 *tab, l_float32 factor );
+LEPT_DLL extern l_float32 * makeLogBase2Tab ( void );
+LEPT_DLL extern l_float32 getLogBase2 ( l_int32 val, l_float32 *logtab );
+LEPT_DLL extern PIXC * pixcompCreateFromPix ( PIX *pix, l_int32 comptype );
+LEPT_DLL extern PIXC * pixcompCreateFromString ( l_uint8 *data, size_t size, l_int32 copyflag );
+LEPT_DLL extern PIXC * pixcompCreateFromFile ( const char *filename, l_int32 comptype );
+LEPT_DLL extern void pixcompDestroy ( PIXC **ppixc );
+LEPT_DLL extern PIXC * pixcompCopy ( PIXC *pixcs );
+LEPT_DLL extern l_int32 pixcompGetDimensions ( PIXC *pixc, l_int32 *pw, l_int32 *ph, l_int32 *pd );
+LEPT_DLL extern l_int32 pixcompDetermineFormat ( l_int32 comptype, l_int32 d, l_int32 cmapflag, l_int32 *pformat );
+LEPT_DLL extern PIX * pixCreateFromPixcomp ( PIXC *pixc );
+LEPT_DLL extern PIXAC * pixacompCreate ( l_int32 n );
+LEPT_DLL extern PIXAC * pixacompCreateWithInit ( l_int32 n, l_int32 offset, PIX *pix, l_int32 comptype );
+LEPT_DLL extern PIXAC * pixacompCreateFromPixa ( PIXA *pixa, l_int32 comptype, l_int32 accesstype );
+LEPT_DLL extern PIXAC * pixacompCreateFromFiles ( const char *dirname, const char *substr, l_int32 comptype );
+LEPT_DLL extern PIXAC * pixacompCreateFromSA ( SARRAY *sa, l_int32 comptype );
+LEPT_DLL extern void pixacompDestroy ( PIXAC **ppixac );
+LEPT_DLL extern l_int32 pixacompAddPix ( PIXAC *pixac, PIX *pix, l_int32 comptype );
+LEPT_DLL extern l_int32 pixacompAddPixcomp ( PIXAC *pixac, PIXC *pixc, l_int32 copyflag );
+LEPT_DLL extern l_int32 pixacompReplacePix ( PIXAC *pixac, l_int32 index, PIX *pix, l_int32 comptype );
+LEPT_DLL extern l_int32 pixacompReplacePixcomp ( PIXAC *pixac, l_int32 index, PIXC *pixc );
+LEPT_DLL extern l_int32 pixacompAddBox ( PIXAC *pixac, BOX *box, l_int32 copyflag );
+LEPT_DLL extern l_int32 pixacompGetCount ( PIXAC *pixac );
+LEPT_DLL extern PIXC * pixacompGetPixcomp ( PIXAC *pixac, l_int32 index, l_int32 copyflag );
+LEPT_DLL extern PIX * pixacompGetPix ( PIXAC *pixac, l_int32 index );
+LEPT_DLL extern l_int32 pixacompGetPixDimensions ( PIXAC *pixac, l_int32 index, l_int32 *pw, l_int32 *ph, l_int32 *pd );
+LEPT_DLL extern BOXA * pixacompGetBoxa ( PIXAC *pixac, l_int32 accesstype );
+LEPT_DLL extern l_int32 pixacompGetBoxaCount ( PIXAC *pixac );
+LEPT_DLL extern BOX * pixacompGetBox ( PIXAC *pixac, l_int32 index, l_int32 accesstype );
+LEPT_DLL extern l_int32 pixacompGetBoxGeometry ( PIXAC *pixac, l_int32 index, l_int32 *px, l_int32 *py, l_int32 *pw, l_int32 *ph );
+LEPT_DLL extern l_int32 pixacompGetOffset ( PIXAC *pixac );
+LEPT_DLL extern l_int32 pixacompSetOffset ( PIXAC *pixac, l_int32 offset );
+LEPT_DLL extern PIXA * pixaCreateFromPixacomp ( PIXAC *pixac, l_int32 accesstype );
+LEPT_DLL extern l_int32 pixacompJoin ( PIXAC *pixacd, PIXAC *pixacs, l_int32 istart, l_int32 iend );
+LEPT_DLL extern PIXAC * pixacompInterleave ( PIXAC *pixac1, PIXAC *pixac2 );
+LEPT_DLL extern PIXAC * pixacompRead ( const char *filename );
+LEPT_DLL extern PIXAC * pixacompReadStream ( FILE *fp );
+LEPT_DLL extern PIXAC * pixacompReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 pixacompWrite ( const char *filename, PIXAC *pixac );
+LEPT_DLL extern l_int32 pixacompWriteStream ( FILE *fp, PIXAC *pixac );
+LEPT_DLL extern l_int32 pixacompWriteMem ( l_uint8 **pdata, size_t *psize, PIXAC *pixac );
+LEPT_DLL extern l_int32 pixacompConvertToPdf ( PIXAC *pixac, l_int32 res, l_float32 scalefactor, l_int32 type, l_int32 quality, const char *title, const char *fileout );
+LEPT_DLL extern l_int32 pixacompConvertToPdfData ( PIXAC *pixac, l_int32 res, l_float32 scalefactor, l_int32 type, l_int32 quality, const char *title, l_uint8 **pdata, size_t *pnbytes );
+LEPT_DLL extern l_int32 pixacompWriteStreamInfo ( FILE *fp, PIXAC *pixac, const char *text );
+LEPT_DLL extern l_int32 pixcompWriteStreamInfo ( FILE *fp, PIXC *pixc, const char *text );
+LEPT_DLL extern PIX * pixacompDisplayTiledAndScaled ( PIXAC *pixac, l_int32 outdepth, l_int32 tilewidth, l_int32 ncols, l_int32 background, l_int32 spacing, l_int32 border );
+LEPT_DLL extern PIX * pixThreshold8 ( PIX *pixs, l_int32 d, l_int32 nlevels, l_int32 cmapflag );
+LEPT_DLL extern PIX * pixRemoveColormapGeneral ( PIX *pixs, l_int32 type, l_int32 ifnocmap );
+LEPT_DLL extern PIX * pixRemoveColormap ( PIX *pixs, l_int32 type );
+LEPT_DLL extern l_int32 pixAddGrayColormap8 ( PIX *pixs );
+LEPT_DLL extern PIX * pixAddMinimalGrayColormap8 ( PIX *pixs );
+LEPT_DLL extern PIX * pixConvertRGBToLuminance ( PIX *pixs );
+LEPT_DLL extern PIX * pixConvertRGBToGray ( PIX *pixs, l_float32 rwt, l_float32 gwt, l_float32 bwt );
+LEPT_DLL extern PIX * pixConvertRGBToGrayFast ( PIX *pixs );
+LEPT_DLL extern PIX * pixConvertRGBToGrayMinMax ( PIX *pixs, l_int32 type );
+LEPT_DLL extern PIX * pixConvertRGBToGraySatBoost ( PIX *pixs, l_int32 refval );
+LEPT_DLL extern PIX * pixConvertRGBToGrayArb ( PIX *pixs, l_float32 rc, l_float32 gc, l_float32 bc );
+LEPT_DLL extern PIX * pixConvertRGBToBinaryArb ( PIX *pixs, l_float32 rc, l_float32 gc, l_float32 bc, l_int32 thresh, l_int32 relation );
+LEPT_DLL extern PIX * pixConvertGrayToColormap ( PIX *pixs );
+LEPT_DLL extern PIX * pixConvertGrayToColormap8 ( PIX *pixs, l_int32 mindepth );
+LEPT_DLL extern PIX * pixColorizeGray ( PIX *pixs, l_uint32 color, l_int32 cmapflag );
+LEPT_DLL extern PIX * pixConvertRGBToColormap ( PIX *pixs, l_int32 ditherflag );
+LEPT_DLL extern PIX * pixConvertCmapTo1 ( PIX *pixs );
+LEPT_DLL extern l_int32 pixQuantizeIfFewColors ( PIX *pixs, l_int32 maxcolors, l_int32 mingraycolors, l_int32 octlevel, PIX **ppixd );
+LEPT_DLL extern PIX * pixConvert16To8 ( PIX *pixs, l_int32 type );
+LEPT_DLL extern PIX * pixConvertGrayToFalseColor ( PIX *pixs, l_float32 gamma );
+LEPT_DLL extern PIX * pixUnpackBinary ( PIX *pixs, l_int32 depth, l_int32 invert );
+LEPT_DLL extern PIX * pixConvert1To16 ( PIX *pixd, PIX *pixs, l_uint16 val0, l_uint16 val1 );
+LEPT_DLL extern PIX * pixConvert1To32 ( PIX *pixd, PIX *pixs, l_uint32 val0, l_uint32 val1 );
+LEPT_DLL extern PIX * pixConvert1To2Cmap ( PIX *pixs );
+LEPT_DLL extern PIX * pixConvert1To2 ( PIX *pixd, PIX *pixs, l_int32 val0, l_int32 val1 );
+LEPT_DLL extern PIX * pixConvert1To4Cmap ( PIX *pixs );
+LEPT_DLL extern PIX * pixConvert1To4 ( PIX *pixd, PIX *pixs, l_int32 val0, l_int32 val1 );
+LEPT_DLL extern PIX * pixConvert1To8Cmap ( PIX *pixs );
+LEPT_DLL extern PIX * pixConvert1To8 ( PIX *pixd, PIX *pixs, l_uint8 val0, l_uint8 val1 );
+LEPT_DLL extern PIX * pixConvert2To8 ( PIX *pixs, l_uint8 val0, l_uint8 val1, l_uint8 val2, l_uint8 val3, l_int32 cmapflag );
+LEPT_DLL extern PIX * pixConvert4To8 ( PIX *pixs, l_int32 cmapflag );
+LEPT_DLL extern PIX * pixConvert8To16 ( PIX *pixs, l_int32 leftshift );
+LEPT_DLL extern PIX * pixConvertTo1 ( PIX *pixs, l_int32 threshold );
+LEPT_DLL extern PIX * pixConvertTo1BySampling ( PIX *pixs, l_int32 factor, l_int32 threshold );
+LEPT_DLL extern PIX * pixConvertTo8 ( PIX *pixs, l_int32 cmapflag );
+LEPT_DLL extern PIX * pixConvertTo8BySampling ( PIX *pixs, l_int32 factor, l_int32 cmapflag );
+LEPT_DLL extern PIX * pixConvertTo8Color ( PIX *pixs, l_int32 dither );
+LEPT_DLL extern PIX * pixConvertTo16 ( PIX *pixs );
+LEPT_DLL extern PIX * pixConvertTo32 ( PIX *pixs );
+LEPT_DLL extern PIX * pixConvertTo32BySampling ( PIX *pixs, l_int32 factor );
+LEPT_DLL extern PIX * pixConvert8To32 ( PIX *pixs );
+LEPT_DLL extern PIX * pixConvertTo8Or32 ( PIX *pixs, l_int32 copyflag, l_int32 warnflag );
+LEPT_DLL extern PIX * pixConvert24To32 ( PIX *pixs );
+LEPT_DLL extern PIX * pixConvert32To24 ( PIX *pixs );
+LEPT_DLL extern PIX * pixConvert32To16 ( PIX *pixs, l_int32 type );
+LEPT_DLL extern PIX * pixConvert32To8 ( PIX *pixs, l_int32 type16, l_int32 type8 );
+LEPT_DLL extern PIX * pixRemoveAlpha ( PIX *pixs );
+LEPT_DLL extern PIX * pixAddAlphaTo1bpp ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern PIX * pixConvertLossless ( PIX *pixs, l_int32 d );
+LEPT_DLL extern PIX * pixConvertForPSWrap ( PIX *pixs );
+LEPT_DLL extern PIX * pixConvertToSubpixelRGB ( PIX *pixs, l_float32 scalex, l_float32 scaley, l_int32 order );
+LEPT_DLL extern PIX * pixConvertGrayToSubpixelRGB ( PIX *pixs, l_float32 scalex, l_float32 scaley, l_int32 order );
+LEPT_DLL extern PIX * pixConvertColorToSubpixelRGB ( PIX *pixs, l_float32 scalex, l_float32 scaley, l_int32 order );
+LEPT_DLL extern void l_setNeutralBoostVal ( l_int32 val );
+LEPT_DLL extern PIX * pixConnCompTransform ( PIX *pixs, l_int32 connect, l_int32 depth );
+LEPT_DLL extern PIX * pixConnCompAreaTransform ( PIX *pixs, l_int32 connect );
+LEPT_DLL extern l_int32 pixConnCompIncrInit ( PIX *pixs, l_int32 conn, PIX **ppixd, PTAA **pptaa, l_int32 *pncc );
+LEPT_DLL extern l_int32 pixConnCompIncrAdd ( PIX *pixs, PTAA *ptaa, l_int32 *pncc, l_float32 x, l_float32 y, l_int32 debug );
+LEPT_DLL extern l_int32 pixGetSortedNeighborValues ( PIX *pixs, l_int32 x, l_int32 y, l_int32 conn, l_int32 **pneigh, l_int32 *pnvals );
+LEPT_DLL extern PIX * pixLocToColorTransform ( PIX *pixs );
+LEPT_DLL extern PIXTILING * pixTilingCreate ( PIX *pixs, l_int32 nx, l_int32 ny, l_int32 w, l_int32 h, l_int32 xoverlap, l_int32 yoverlap );
+LEPT_DLL extern void pixTilingDestroy ( PIXTILING **ppt );
+LEPT_DLL extern l_int32 pixTilingGetCount ( PIXTILING *pt, l_int32 *pnx, l_int32 *pny );
+LEPT_DLL extern l_int32 pixTilingGetSize ( PIXTILING *pt, l_int32 *pw, l_int32 *ph );
+LEPT_DLL extern PIX * pixTilingGetTile ( PIXTILING *pt, l_int32 i, l_int32 j );
+LEPT_DLL extern l_int32 pixTilingNoStripOnPaint ( PIXTILING *pt );
+LEPT_DLL extern l_int32 pixTilingPaintTile ( PIX *pixd, l_int32 i, l_int32 j, PIX *pixs, PIXTILING *pt );
+LEPT_DLL extern PIX * pixReadStreamPng ( FILE *fp );
+LEPT_DLL extern l_int32 readHeaderPng ( const char *filename, l_int32 *pw, l_int32 *ph, l_int32 *pbps, l_int32 *pspp, l_int32 *piscmap );
+LEPT_DLL extern l_int32 freadHeaderPng ( FILE *fp, l_int32 *pw, l_int32 *ph, l_int32 *pbps, l_int32 *pspp, l_int32 *piscmap );
+LEPT_DLL extern l_int32 readHeaderMemPng ( const l_uint8 *data, size_t size, l_int32 *pw, l_int32 *ph, l_int32 *pbps, l_int32 *pspp, l_int32 *piscmap );
+LEPT_DLL extern l_int32 fgetPngResolution ( FILE *fp, l_int32 *pxres, l_int32 *pyres );
+LEPT_DLL extern l_int32 isPngInterlaced ( const char *filename, l_int32 *pinterlaced );
+LEPT_DLL extern l_int32 fgetPngColormapInfo ( FILE *fp, PIXCMAP **pcmap, l_int32 *ptransparency );
+LEPT_DLL extern l_int32 pixWritePng ( const char *filename, PIX *pix, l_float32 gamma );
+LEPT_DLL extern l_int32 pixWriteStreamPng ( FILE *fp, PIX *pix, l_float32 gamma );
+LEPT_DLL extern l_int32 pixSetZlibCompression ( PIX *pix, l_int32 compval );
+LEPT_DLL extern void l_pngSetReadStrip16To8 ( l_int32 flag );
+LEPT_DLL extern PIX * pixReadMemPng ( const l_uint8 *filedata, size_t filesize );
+LEPT_DLL extern l_int32 pixWriteMemPng ( l_uint8 **pfiledata, size_t *pfilesize, PIX *pix, l_float32 gamma );
+LEPT_DLL extern PIX * pixReadStreamPnm ( FILE *fp );
+LEPT_DLL extern l_int32 readHeaderPnm ( const char *filename, l_int32 *pw, l_int32 *ph, l_int32 *pd, l_int32 *ptype, l_int32 *pbps, l_int32 *pspp );
+LEPT_DLL extern l_int32 freadHeaderPnm ( FILE *fp, l_int32 *pw, l_int32 *ph, l_int32 *pd, l_int32 *ptype, l_int32 *pbps, l_int32 *pspp );
+LEPT_DLL extern l_int32 pixWriteStreamPnm ( FILE *fp, PIX *pix );
+LEPT_DLL extern l_int32 pixWriteStreamAsciiPnm ( FILE *fp, PIX *pix );
+LEPT_DLL extern l_int32 pixWriteStreamPam ( FILE *fp, PIX *pix );
+LEPT_DLL extern PIX * pixReadMemPnm ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 readHeaderMemPnm ( const l_uint8 *data, size_t size, l_int32 *pw, l_int32 *ph, l_int32 *pd, l_int32 *ptype, l_int32 *pbps, l_int32 *pspp );
+LEPT_DLL extern l_int32 pixWriteMemPnm ( l_uint8 **pdata, size_t *psize, PIX *pix );
+LEPT_DLL extern l_int32 pixWriteMemPam ( l_uint8 **pdata, size_t *psize, PIX *pix );
+LEPT_DLL extern PIX * pixProjectiveSampledPta ( PIX *pixs, PTA *ptad, PTA *ptas, l_int32 incolor );
+LEPT_DLL extern PIX * pixProjectiveSampled ( PIX *pixs, l_float32 *vc, l_int32 incolor );
+LEPT_DLL extern PIX * pixProjectivePta ( PIX *pixs, PTA *ptad, PTA *ptas, l_int32 incolor );
+LEPT_DLL extern PIX * pixProjective ( PIX *pixs, l_float32 *vc, l_int32 incolor );
+LEPT_DLL extern PIX * pixProjectivePtaColor ( PIX *pixs, PTA *ptad, PTA *ptas, l_uint32 colorval );
+LEPT_DLL extern PIX * pixProjectiveColor ( PIX *pixs, l_float32 *vc, l_uint32 colorval );
+LEPT_DLL extern PIX * pixProjectivePtaGray ( PIX *pixs, PTA *ptad, PTA *ptas, l_uint8 grayval );
+LEPT_DLL extern PIX * pixProjectiveGray ( PIX *pixs, l_float32 *vc, l_uint8 grayval );
+LEPT_DLL extern PIX * pixProjectivePtaWithAlpha ( PIX *pixs, PTA *ptad, PTA *ptas, PIX *pixg, l_float32 fract, l_int32 border );
+LEPT_DLL extern l_int32 getProjectiveXformCoeffs ( PTA *ptas, PTA *ptad, l_float32 **pvc );
+LEPT_DLL extern l_int32 projectiveXformSampledPt ( l_float32 *vc, l_int32 x, l_int32 y, l_int32 *pxp, l_int32 *pyp );
+LEPT_DLL extern l_int32 projectiveXformPt ( l_float32 *vc, l_int32 x, l_int32 y, l_float32 *pxp, l_float32 *pyp );
+LEPT_DLL extern l_int32 convertFilesToPS ( const char *dirin, const char *substr, l_int32 res, const char *fileout );
+LEPT_DLL extern l_int32 sarrayConvertFilesToPS ( SARRAY *sa, l_int32 res, const char *fileout );
+LEPT_DLL extern l_int32 convertFilesFittedToPS ( const char *dirin, const char *substr, l_float32 xpts, l_float32 ypts, const char *fileout );
+LEPT_DLL extern l_int32 sarrayConvertFilesFittedToPS ( SARRAY *sa, l_float32 xpts, l_float32 ypts, const char *fileout );
+LEPT_DLL extern l_int32 writeImageCompressedToPSFile ( const char *filein, const char *fileout, l_int32 res, l_int32 *pfirstfile, l_int32 *pindex );
+LEPT_DLL extern l_int32 convertSegmentedPagesToPS ( const char *pagedir, const char *pagestr, l_int32 page_numpre, const char *maskdir, const char *maskstr, l_int32 mask_numpre, l_int32 numpost, l_int32 maxnum, l_float32 textscale, l_float32 imagescale, l_int32 threshold, const char *fileout );
+LEPT_DLL extern l_int32 pixWriteSegmentedPageToPS ( PIX *pixs, PIX *pixm, l_float32 textscale, l_float32 imagescale, l_int32 threshold, l_int32 pageno, const char *fileout );
+LEPT_DLL extern l_int32 pixWriteMixedToPS ( PIX *pixb, PIX *pixc, l_float32 scale, l_int32 pageno, const char *fileout );
+LEPT_DLL extern l_int32 convertToPSEmbed ( const char *filein, const char *fileout, l_int32 level );
+LEPT_DLL extern l_int32 pixaWriteCompressedToPS ( PIXA *pixa, const char *fileout, l_int32 res, l_int32 level );
+LEPT_DLL extern l_int32 pixWritePSEmbed ( const char *filein, const char *fileout );
+LEPT_DLL extern l_int32 pixWriteStreamPS ( FILE *fp, PIX *pix, BOX *box, l_int32 res, l_float32 scale );
+LEPT_DLL extern char * pixWriteStringPS ( PIX *pixs, BOX *box, l_int32 res, l_float32 scale );
+LEPT_DLL extern char * generateUncompressedPS ( char *hexdata, l_int32 w, l_int32 h, l_int32 d, l_int32 psbpl, l_int32 bps, l_float32 xpt, l_float32 ypt, l_float32 wpt, l_float32 hpt, l_int32 boxflag );
+LEPT_DLL extern void getScaledParametersPS ( BOX *box, l_int32 wpix, l_int32 hpix, l_int32 res, l_float32 scale, l_float32 *pxpt, l_float32 *pypt, l_float32 *pwpt, l_float32 *phpt );
+LEPT_DLL extern void convertByteToHexAscii ( l_uint8 byteval, char *pnib1, char *pnib2 );
+LEPT_DLL extern l_int32 convertJpegToPSEmbed ( const char *filein, const char *fileout );
+LEPT_DLL extern l_int32 convertJpegToPS ( const char *filein, const char *fileout, const char *operation, l_int32 x, l_int32 y, l_int32 res, l_float32 scale, l_int32 pageno, l_int32 endpage );
+LEPT_DLL extern l_int32 convertJpegToPSString ( const char *filein, char **poutstr, l_int32 *pnbytes, l_int32 x, l_int32 y, l_int32 res, l_float32 scale, l_int32 pageno, l_int32 endpage );
+LEPT_DLL extern char * generateJpegPS ( const char *filein, L_COMP_DATA *cid, l_float32 xpt, l_float32 ypt, l_float32 wpt, l_float32 hpt, l_int32 pageno, l_int32 endpage );
+LEPT_DLL extern l_int32 convertG4ToPSEmbed ( const char *filein, const char *fileout );
+LEPT_DLL extern l_int32 convertG4ToPS ( const char *filein, const char *fileout, const char *operation, l_int32 x, l_int32 y, l_int32 res, l_float32 scale, l_int32 pageno, l_int32 maskflag, l_int32 endpage );
+LEPT_DLL extern l_int32 convertG4ToPSString ( const char *filein, char **poutstr, l_int32 *pnbytes, l_int32 x, l_int32 y, l_int32 res, l_float32 scale, l_int32 pageno, l_int32 maskflag, l_int32 endpage );
+LEPT_DLL extern char * generateG4PS ( const char *filein, L_COMP_DATA *cid, l_float32 xpt, l_float32 ypt, l_float32 wpt, l_float32 hpt, l_int32 maskflag, l_int32 pageno, l_int32 endpage );
+LEPT_DLL extern l_int32 convertTiffMultipageToPS ( const char *filein, const char *fileout, l_float32 fillfract );
+LEPT_DLL extern l_int32 convertFlateToPSEmbed ( const char *filein, const char *fileout );
+LEPT_DLL extern l_int32 convertFlateToPS ( const char *filein, const char *fileout, const char *operation, l_int32 x, l_int32 y, l_int32 res, l_float32 scale, l_int32 pageno, l_int32 endpage );
+LEPT_DLL extern l_int32 convertFlateToPSString ( const char *filein, char **poutstr, l_int32 *pnbytes, l_int32 x, l_int32 y, l_int32 res, l_float32 scale, l_int32 pageno, l_int32 endpage );
+LEPT_DLL extern char * generateFlatePS ( const char *filein, L_COMP_DATA *cid, l_float32 xpt, l_float32 ypt, l_float32 wpt, l_float32 hpt, l_int32 pageno, l_int32 endpage );
+LEPT_DLL extern l_int32 pixWriteMemPS ( l_uint8 **pdata, size_t *psize, PIX *pix, BOX *box, l_int32 res, l_float32 scale );
+LEPT_DLL extern l_int32 getResLetterPage ( l_int32 w, l_int32 h, l_float32 fillfract );
+LEPT_DLL extern l_int32 getResA4Page ( l_int32 w, l_int32 h, l_float32 fillfract );
+LEPT_DLL extern void l_psWriteBoundingBox ( l_int32 flag );
+LEPT_DLL extern PTA * ptaCreate ( l_int32 n );
+LEPT_DLL extern PTA * ptaCreateFromNuma ( NUMA *nax, NUMA *nay );
+LEPT_DLL extern void ptaDestroy ( PTA **ppta );
+LEPT_DLL extern PTA * ptaCopy ( PTA *pta );
+LEPT_DLL extern PTA * ptaCopyRange ( PTA *ptas, l_int32 istart, l_int32 iend );
+LEPT_DLL extern PTA * ptaClone ( PTA *pta );
+LEPT_DLL extern l_int32 ptaEmpty ( PTA *pta );
+LEPT_DLL extern l_int32 ptaAddPt ( PTA *pta, l_float32 x, l_float32 y );
+LEPT_DLL extern l_int32 ptaInsertPt ( PTA *pta, l_int32 index, l_int32 x, l_int32 y );
+LEPT_DLL extern l_int32 ptaRemovePt ( PTA *pta, l_int32 index );
+LEPT_DLL extern l_int32 ptaGetRefcount ( PTA *pta );
+LEPT_DLL extern l_int32 ptaChangeRefcount ( PTA *pta, l_int32 delta );
+LEPT_DLL extern l_int32 ptaGetCount ( PTA *pta );
+LEPT_DLL extern l_int32 ptaGetPt ( PTA *pta, l_int32 index, l_float32 *px, l_float32 *py );
+LEPT_DLL extern l_int32 ptaGetIPt ( PTA *pta, l_int32 index, l_int32 *px, l_int32 *py );
+LEPT_DLL extern l_int32 ptaSetPt ( PTA *pta, l_int32 index, l_float32 x, l_float32 y );
+LEPT_DLL extern l_int32 ptaGetArrays ( PTA *pta, NUMA **pnax, NUMA **pnay );
+LEPT_DLL extern PTA * ptaRead ( const char *filename );
+LEPT_DLL extern PTA * ptaReadStream ( FILE *fp );
+LEPT_DLL extern PTA * ptaReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 ptaWrite ( const char *filename, PTA *pta, l_int32 type );
+LEPT_DLL extern l_int32 ptaWriteStream ( FILE *fp, PTA *pta, l_int32 type );
+LEPT_DLL extern l_int32 ptaWriteMem ( l_uint8 **pdata, size_t *psize, PTA *pta, l_int32 type );
+LEPT_DLL extern PTAA * ptaaCreate ( l_int32 n );
+LEPT_DLL extern void ptaaDestroy ( PTAA **pptaa );
+LEPT_DLL extern l_int32 ptaaAddPta ( PTAA *ptaa, PTA *pta, l_int32 copyflag );
+LEPT_DLL extern l_int32 ptaaGetCount ( PTAA *ptaa );
+LEPT_DLL extern PTA * ptaaGetPta ( PTAA *ptaa, l_int32 index, l_int32 accessflag );
+LEPT_DLL extern l_int32 ptaaGetPt ( PTAA *ptaa, l_int32 ipta, l_int32 jpt, l_float32 *px, l_float32 *py );
+LEPT_DLL extern l_int32 ptaaInitFull ( PTAA *ptaa, PTA *pta );
+LEPT_DLL extern l_int32 ptaaReplacePta ( PTAA *ptaa, l_int32 index, PTA *pta );
+LEPT_DLL extern l_int32 ptaaAddPt ( PTAA *ptaa, l_int32 ipta, l_float32 x, l_float32 y );
+LEPT_DLL extern l_int32 ptaaTruncate ( PTAA *ptaa );
+LEPT_DLL extern PTAA * ptaaRead ( const char *filename );
+LEPT_DLL extern PTAA * ptaaReadStream ( FILE *fp );
+LEPT_DLL extern PTAA * ptaaReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 ptaaWrite ( const char *filename, PTAA *ptaa, l_int32 type );
+LEPT_DLL extern l_int32 ptaaWriteStream ( FILE *fp, PTAA *ptaa, l_int32 type );
+LEPT_DLL extern l_int32 ptaaWriteMem ( l_uint8 **pdata, size_t *psize, PTAA *ptaa, l_int32 type );
+LEPT_DLL extern PTA * ptaSubsample ( PTA *ptas, l_int32 subfactor );
+LEPT_DLL extern l_int32 ptaJoin ( PTA *ptad, PTA *ptas, l_int32 istart, l_int32 iend );
+LEPT_DLL extern l_int32 ptaaJoin ( PTAA *ptaad, PTAA *ptaas, l_int32 istart, l_int32 iend );
+LEPT_DLL extern PTA * ptaReverse ( PTA *ptas, l_int32 type );
+LEPT_DLL extern PTA * ptaTranspose ( PTA *ptas );
+LEPT_DLL extern PTA * ptaCyclicPerm ( PTA *ptas, l_int32 xs, l_int32 ys );
+LEPT_DLL extern PTA * ptaSelectRange ( PTA *ptas, l_int32 first, l_int32 last );
+LEPT_DLL extern BOX * ptaGetBoundingRegion ( PTA *pta );
+LEPT_DLL extern l_int32 ptaGetRange ( PTA *pta, l_float32 *pminx, l_float32 *pmaxx, l_float32 *pminy, l_float32 *pmaxy );
+LEPT_DLL extern PTA * ptaGetInsideBox ( PTA *ptas, BOX *box );
+LEPT_DLL extern PTA * pixFindCornerPixels ( PIX *pixs );
+LEPT_DLL extern l_int32 ptaContainsPt ( PTA *pta, l_int32 x, l_int32 y );
+LEPT_DLL extern l_int32 ptaTestIntersection ( PTA *pta1, PTA *pta2 );
+LEPT_DLL extern PTA * ptaTransform ( PTA *ptas, l_int32 shiftx, l_int32 shifty, l_float32 scalex, l_float32 scaley );
+LEPT_DLL extern l_int32 ptaPtInsidePolygon ( PTA *pta, l_float32 x, l_float32 y, l_int32 *pinside );
+LEPT_DLL extern l_float32 l_angleBetweenVectors ( l_float32 x1, l_float32 y1, l_float32 x2, l_float32 y2 );
+LEPT_DLL extern l_int32 ptaGetMinMax ( PTA *pta, l_float32 *pxmin, l_float32 *pymin, l_float32 *pxmax, l_float32 *pymax );
+LEPT_DLL extern PTA * ptaSelectByValue ( PTA *ptas, l_float32 xth, l_float32 yth, l_int32 type, l_int32 relation );
+LEPT_DLL extern PTA * ptaCropToMask ( PTA *ptas, PIX *pixm );
+LEPT_DLL extern l_int32 ptaGetLinearLSF ( PTA *pta, l_float32 *pa, l_float32 *pb, NUMA **pnafit );
+LEPT_DLL extern l_int32 ptaGetQuadraticLSF ( PTA *pta, l_float32 *pa, l_float32 *pb, l_float32 *pc, NUMA **pnafit );
+LEPT_DLL extern l_int32 ptaGetCubicLSF ( PTA *pta, l_float32 *pa, l_float32 *pb, l_float32 *pc, l_float32 *pd, NUMA **pnafit );
+LEPT_DLL extern l_int32 ptaGetQuarticLSF ( PTA *pta, l_float32 *pa, l_float32 *pb, l_float32 *pc, l_float32 *pd, l_float32 *pe, NUMA **pnafit );
+LEPT_DLL extern l_int32 ptaNoisyLinearLSF ( PTA *pta, l_float32 factor, PTA **pptad, l_float32 *pa, l_float32 *pb, l_float32 *pmederr, NUMA **pnafit );
+LEPT_DLL extern l_int32 ptaNoisyQuadraticLSF ( PTA *pta, l_float32 factor, PTA **pptad, l_float32 *pa, l_float32 *pb, l_float32 *pc, l_float32 *pmederr, NUMA **pnafit );
+LEPT_DLL extern l_int32 applyLinearFit ( l_float32 a, l_float32 b, l_float32 x, l_float32 *py );
+LEPT_DLL extern l_int32 applyQuadraticFit ( l_float32 a, l_float32 b, l_float32 c, l_float32 x, l_float32 *py );
+LEPT_DLL extern l_int32 applyCubicFit ( l_float32 a, l_float32 b, l_float32 c, l_float32 d, l_float32 x, l_float32 *py );
+LEPT_DLL extern l_int32 applyQuarticFit ( l_float32 a, l_float32 b, l_float32 c, l_float32 d, l_float32 e, l_float32 x, l_float32 *py );
+LEPT_DLL extern l_int32 pixPlotAlongPta ( PIX *pixs, PTA *pta, l_int32 outformat, const char *title );
+LEPT_DLL extern PTA * ptaGetPixelsFromPix ( PIX *pixs, BOX *box );
+LEPT_DLL extern PIX * pixGenerateFromPta ( PTA *pta, l_int32 w, l_int32 h );
+LEPT_DLL extern PTA * ptaGetBoundaryPixels ( PIX *pixs, l_int32 type );
+LEPT_DLL extern PTAA * ptaaGetBoundaryPixels ( PIX *pixs, l_int32 type, l_int32 connectivity, BOXA **pboxa, PIXA **ppixa );
+LEPT_DLL extern PTAA * ptaaIndexLabeledPixels ( PIX *pixs, l_int32 *pncc );
+LEPT_DLL extern PTA * ptaGetNeighborPixLocs ( PIX *pixs, l_int32 x, l_int32 y, l_int32 conn );
+LEPT_DLL extern PTA * numaConvertToPta1 ( NUMA *na );
+LEPT_DLL extern PTA * numaConvertToPta2 ( NUMA *nax, NUMA *nay );
+LEPT_DLL extern l_int32 ptaConvertToNuma ( PTA *pta, NUMA **pnax, NUMA **pnay );
+LEPT_DLL extern PIX * pixDisplayPta ( PIX *pixd, PIX *pixs, PTA *pta );
+LEPT_DLL extern PIX * pixDisplayPtaaPattern ( PIX *pixd, PIX *pixs, PTAA *ptaa, PIX *pixp, l_int32 cx, l_int32 cy );
+LEPT_DLL extern PIX * pixDisplayPtaPattern ( PIX *pixd, PIX *pixs, PTA *pta, PIX *pixp, l_int32 cx, l_int32 cy, l_uint32 color );
+LEPT_DLL extern PTA * ptaReplicatePattern ( PTA *ptas, PIX *pixp, PTA *ptap, l_int32 cx, l_int32 cy, l_int32 w, l_int32 h );
+LEPT_DLL extern PIX * pixDisplayPtaa ( PIX *pixs, PTAA *ptaa );
+LEPT_DLL extern PTA * ptaSort ( PTA *ptas, l_int32 sorttype, l_int32 sortorder, NUMA **pnaindex );
+LEPT_DLL extern l_int32 ptaGetSortIndex ( PTA *ptas, l_int32 sorttype, l_int32 sortorder, NUMA **pnaindex );
+LEPT_DLL extern PTA * ptaSortByIndex ( PTA *ptas, NUMA *naindex );
+LEPT_DLL extern PTAA * ptaaSortByIndex ( PTAA *ptaas, NUMA *naindex );
+LEPT_DLL extern l_int32 ptaGetRankValue ( PTA *pta, l_float32 fract, PTA *ptasort, l_int32 sorttype, l_float32 *pval );
+LEPT_DLL extern PTA * ptaUnionByAset ( PTA *pta1, PTA *pta2 );
+LEPT_DLL extern PTA * ptaRemoveDupsByAset ( PTA *ptas );
+LEPT_DLL extern PTA * ptaIntersectionByAset ( PTA *pta1, PTA *pta2 );
+LEPT_DLL extern L_ASET * l_asetCreateFromPta ( PTA *pta );
+LEPT_DLL extern PTA * ptaUnionByHash ( PTA *pta1, PTA *pta2 );
+LEPT_DLL extern l_int32 ptaRemoveDupsByHash ( PTA *ptas, PTA **pptad, L_DNAHASH **pdahash );
+LEPT_DLL extern PTA * ptaIntersectionByHash ( PTA *pta1, PTA *pta2 );
+LEPT_DLL extern l_int32 ptaFindPtByHash ( PTA *pta, L_DNAHASH *dahash, l_int32 x, l_int32 y, l_int32 *pindex );
+LEPT_DLL extern L_DNAHASH * l_dnaHashCreateFromPta ( PTA *pta );
+LEPT_DLL extern L_PTRA * ptraCreate ( l_int32 n );
+LEPT_DLL extern void ptraDestroy ( L_PTRA **ppa, l_int32 freeflag, l_int32 warnflag );
+LEPT_DLL extern l_int32 ptraAdd ( L_PTRA *pa, void *item );
+LEPT_DLL extern l_int32 ptraInsert ( L_PTRA *pa, l_int32 index, void *item, l_int32 shiftflag );
+LEPT_DLL extern void * ptraRemove ( L_PTRA *pa, l_int32 index, l_int32 flag );
+LEPT_DLL extern void * ptraRemoveLast ( L_PTRA *pa );
+LEPT_DLL extern void * ptraReplace ( L_PTRA *pa, l_int32 index, void *item, l_int32 freeflag );
+LEPT_DLL extern l_int32 ptraSwap ( L_PTRA *pa, l_int32 index1, l_int32 index2 );
+LEPT_DLL extern l_int32 ptraCompactArray ( L_PTRA *pa );
+LEPT_DLL extern l_int32 ptraReverse ( L_PTRA *pa );
+LEPT_DLL extern l_int32 ptraJoin ( L_PTRA *pa1, L_PTRA *pa2 );
+LEPT_DLL extern l_int32 ptraGetMaxIndex ( L_PTRA *pa, l_int32 *pmaxindex );
+LEPT_DLL extern l_int32 ptraGetActualCount ( L_PTRA *pa, l_int32 *pcount );
+LEPT_DLL extern void * ptraGetPtrToItem ( L_PTRA *pa, l_int32 index );
+LEPT_DLL extern L_PTRAA * ptraaCreate ( l_int32 n );
+LEPT_DLL extern void ptraaDestroy ( L_PTRAA **ppaa, l_int32 freeflag, l_int32 warnflag );
+LEPT_DLL extern l_int32 ptraaGetSize ( L_PTRAA *paa, l_int32 *psize );
+LEPT_DLL extern l_int32 ptraaInsertPtra ( L_PTRAA *paa, l_int32 index, L_PTRA *pa );
+LEPT_DLL extern L_PTRA * ptraaGetPtra ( L_PTRAA *paa, l_int32 index, l_int32 accessflag );
+LEPT_DLL extern L_PTRA * ptraaFlattenToPtra ( L_PTRAA *paa );
+LEPT_DLL extern l_int32 pixQuadtreeMean ( PIX *pixs, l_int32 nlevels, PIX *pix_ma, FPIXA **pfpixa );
+LEPT_DLL extern l_int32 pixQuadtreeVariance ( PIX *pixs, l_int32 nlevels, PIX *pix_ma, DPIX *dpix_msa, FPIXA **pfpixa_v, FPIXA **pfpixa_rv );
+LEPT_DLL extern l_int32 pixMeanInRectangle ( PIX *pixs, BOX *box, PIX *pixma, l_float32 *pval );
+LEPT_DLL extern l_int32 pixVarianceInRectangle ( PIX *pixs, BOX *box, PIX *pix_ma, DPIX *dpix_msa, l_float32 *pvar, l_float32 *prvar );
+LEPT_DLL extern BOXAA * boxaaQuadtreeRegions ( l_int32 w, l_int32 h, l_int32 nlevels );
+LEPT_DLL extern l_int32 quadtreeGetParent ( FPIXA *fpixa, l_int32 level, l_int32 x, l_int32 y, l_float32 *pval );
+LEPT_DLL extern l_int32 quadtreeGetChildren ( FPIXA *fpixa, l_int32 level, l_int32 x, l_int32 y, l_float32 *pval00, l_float32 *pval10, l_float32 *pval01, l_float32 *pval11 );
+LEPT_DLL extern l_int32 quadtreeMaxLevels ( l_int32 w, l_int32 h );
+LEPT_DLL extern PIX * fpixaDisplayQuadtree ( FPIXA *fpixa, l_int32 factor, l_int32 fontsize );
+LEPT_DLL extern L_QUEUE * lqueueCreate ( l_int32 nalloc );
+LEPT_DLL extern void lqueueDestroy ( L_QUEUE **plq, l_int32 freeflag );
+LEPT_DLL extern l_int32 lqueueAdd ( L_QUEUE *lq, void *item );
+LEPT_DLL extern void * lqueueRemove ( L_QUEUE *lq );
+LEPT_DLL extern l_int32 lqueueGetCount ( L_QUEUE *lq );
+LEPT_DLL extern l_int32 lqueuePrint ( FILE *fp, L_QUEUE *lq );
+LEPT_DLL extern PIX * pixRankFilter ( PIX *pixs, l_int32 wf, l_int32 hf, l_float32 rank );
+LEPT_DLL extern PIX * pixRankFilterRGB ( PIX *pixs, l_int32 wf, l_int32 hf, l_float32 rank );
+LEPT_DLL extern PIX * pixRankFilterGray ( PIX *pixs, l_int32 wf, l_int32 hf, l_float32 rank );
+LEPT_DLL extern PIX * pixMedianFilter ( PIX *pixs, l_int32 wf, l_int32 hf );
+LEPT_DLL extern PIX * pixRankFilterWithScaling ( PIX *pixs, l_int32 wf, l_int32 hf, l_float32 rank, l_float32 scalefactor );
+LEPT_DLL extern L_RBTREE * l_rbtreeCreate ( l_int32 keytype );
+LEPT_DLL extern RB_TYPE * l_rbtreeLookup ( L_RBTREE *t, RB_TYPE key );
+LEPT_DLL extern void l_rbtreeInsert ( L_RBTREE *t, RB_TYPE key, RB_TYPE value );
+LEPT_DLL extern void l_rbtreeDelete ( L_RBTREE *t, RB_TYPE key );
+LEPT_DLL extern void l_rbtreeDestroy ( L_RBTREE **pt );
+LEPT_DLL extern L_RBTREE_NODE * l_rbtreeGetFirst ( L_RBTREE *t );
+LEPT_DLL extern L_RBTREE_NODE * l_rbtreeGetNext ( L_RBTREE_NODE *n );
+LEPT_DLL extern L_RBTREE_NODE * l_rbtreeGetLast ( L_RBTREE *t );
+LEPT_DLL extern L_RBTREE_NODE * l_rbtreeGetPrev ( L_RBTREE_NODE *n );
+LEPT_DLL extern l_int32 l_rbtreeGetCount ( L_RBTREE *t );
+LEPT_DLL extern void l_rbtreePrint ( FILE *fp, L_RBTREE *t );
+LEPT_DLL extern SARRAY * pixProcessBarcodes ( PIX *pixs, l_int32 format, l_int32 method, SARRAY **psaw, l_int32 debugflag );
+LEPT_DLL extern PIXA * pixExtractBarcodes ( PIX *pixs, l_int32 debugflag );
+LEPT_DLL extern SARRAY * pixReadBarcodes ( PIXA *pixa, l_int32 format, l_int32 method, SARRAY **psaw, l_int32 debugflag );
+LEPT_DLL extern NUMA * pixReadBarcodeWidths ( PIX *pixs, l_int32 method, l_int32 debugflag );
+LEPT_DLL extern BOXA * pixLocateBarcodes ( PIX *pixs, l_int32 thresh, PIX **ppixb, PIX **ppixm );
+LEPT_DLL extern PIX * pixDeskewBarcode ( PIX *pixs, PIX *pixb, BOX *box, l_int32 margin, l_int32 threshold, l_float32 *pangle, l_float32 *pconf );
+LEPT_DLL extern NUMA * pixExtractBarcodeWidths1 ( PIX *pixs, l_float32 thresh, l_float32 binfract, NUMA **pnaehist, NUMA **pnaohist, l_int32 debugflag );
+LEPT_DLL extern NUMA * pixExtractBarcodeWidths2 ( PIX *pixs, l_float32 thresh, l_float32 *pwidth, NUMA **pnac, l_int32 debugflag );
+LEPT_DLL extern NUMA * pixExtractBarcodeCrossings ( PIX *pixs, l_float32 thresh, l_int32 debugflag );
+LEPT_DLL extern NUMA * numaQuantizeCrossingsByWidth ( NUMA *nas, l_float32 binfract, NUMA **pnaehist, NUMA **pnaohist, l_int32 debugflag );
+LEPT_DLL extern NUMA * numaQuantizeCrossingsByWindow ( NUMA *nas, l_float32 ratio, l_float32 *pwidth, l_float32 *pfirstloc, NUMA **pnac, l_int32 debugflag );
+LEPT_DLL extern PIXA * pixaReadFiles ( const char *dirname, const char *substr );
+LEPT_DLL extern PIXA * pixaReadFilesSA ( SARRAY *sa );
+LEPT_DLL extern PIX * pixRead ( const char *filename );
+LEPT_DLL extern PIX * pixReadWithHint ( const char *filename, l_int32 hint );
+LEPT_DLL extern PIX * pixReadIndexed ( SARRAY *sa, l_int32 index );
+LEPT_DLL extern PIX * pixReadStream ( FILE *fp, l_int32 hint );
+LEPT_DLL extern l_int32 pixReadHeader ( const char *filename, l_int32 *pformat, l_int32 *pw, l_int32 *ph, l_int32 *pbps, l_int32 *pspp, l_int32 *piscmap );
+LEPT_DLL extern l_int32 findFileFormat ( const char *filename, l_int32 *pformat );
+LEPT_DLL extern l_int32 findFileFormatStream ( FILE *fp, l_int32 *pformat );
+LEPT_DLL extern l_int32 findFileFormatBuffer ( const l_uint8 *buf, l_int32 *pformat );
+LEPT_DLL extern l_int32 fileFormatIsTiff ( FILE *fp );
+LEPT_DLL extern PIX * pixReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 pixReadHeaderMem ( const l_uint8 *data, size_t size, l_int32 *pformat, l_int32 *pw, l_int32 *ph, l_int32 *pbps, l_int32 *pspp, l_int32 *piscmap );
+LEPT_DLL extern l_int32 writeImageFileInfo ( const char *filename, FILE *fpout, l_int32 headeronly );
+LEPT_DLL extern l_int32 ioFormatTest ( const char *filename );
+LEPT_DLL extern L_RECOG * recogCreateFromRecog ( L_RECOG *recs, l_int32 scalew, l_int32 scaleh, l_int32 linew, l_int32 threshold, l_int32 maxyshift );
+LEPT_DLL extern L_RECOG * recogCreateFromPixa ( PIXA *pixa, l_int32 scalew, l_int32 scaleh, l_int32 linew, l_int32 threshold, l_int32 maxyshift );
+LEPT_DLL extern L_RECOG * recogCreateFromPixaNoFinish ( PIXA *pixa, l_int32 scalew, l_int32 scaleh, l_int32 linew, l_int32 threshold, l_int32 maxyshift );
+LEPT_DLL extern L_RECOG * recogCreate ( l_int32 scalew, l_int32 scaleh, l_int32 linew, l_int32 threshold, l_int32 maxyshift );
+LEPT_DLL extern void recogDestroy ( L_RECOG **precog );
+LEPT_DLL extern l_int32 recogGetCount ( L_RECOG *recog );
+LEPT_DLL extern l_int32 recogSetParams ( L_RECOG *recog, l_int32 type, l_int32 min_nopad, l_float32 max_wh_ratio, l_float32 max_ht_ratio );
+LEPT_DLL extern l_int32 recogGetClassIndex ( L_RECOG *recog, l_int32 val, char *text, l_int32 *pindex );
+LEPT_DLL extern l_int32 recogStringToIndex ( L_RECOG *recog, char *text, l_int32 *pindex );
+LEPT_DLL extern l_int32 recogGetClassString ( L_RECOG *recog, l_int32 index, char **pcharstr );
+LEPT_DLL extern l_int32 l_convertCharstrToInt ( const char *str, l_int32 *pval );
+LEPT_DLL extern L_RECOG * recogRead ( const char *filename );
+LEPT_DLL extern L_RECOG * recogReadStream ( FILE *fp );
+LEPT_DLL extern L_RECOG * recogReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 recogWrite ( const char *filename, L_RECOG *recog );
+LEPT_DLL extern l_int32 recogWriteStream ( FILE *fp, L_RECOG *recog );
+LEPT_DLL extern l_int32 recogWriteMem ( l_uint8 **pdata, size_t *psize, L_RECOG *recog );
+LEPT_DLL extern PIXA * recogExtractPixa ( L_RECOG *recog );
+LEPT_DLL extern BOXA * recogDecode ( L_RECOG *recog, PIX *pixs, l_int32 nlevels, PIX **ppixdb );
+LEPT_DLL extern l_int32 recogCreateDid ( L_RECOG *recog, PIX *pixs );
+LEPT_DLL extern l_int32 recogDestroyDid ( L_RECOG *recog );
+LEPT_DLL extern l_int32 recogDidExists ( L_RECOG *recog );
+LEPT_DLL extern L_RDID * recogGetDid ( L_RECOG *recog );
+LEPT_DLL extern l_int32 recogSetChannelParams ( L_RECOG *recog, l_int32 nlevels );
+LEPT_DLL extern l_int32 recogIdentifyMultiple ( L_RECOG *recog, PIX *pixs, l_int32 minh, l_int32 skipsplit, BOXA **pboxa, PIXA **ppixa, PIX **ppixdb, l_int32 debugsplit );
+LEPT_DLL extern l_int32 recogSplitIntoCharacters ( L_RECOG *recog, PIX *pixs, l_int32 minh, l_int32 skipsplit, BOXA **pboxa, PIXA **ppixa, l_int32 debug );
+LEPT_DLL extern l_int32 recogCorrelationBestRow ( L_RECOG *recog, PIX *pixs, BOXA **pboxa, NUMA **pnascore, NUMA **pnaindex, SARRAY **psachar, l_int32 debug );
+LEPT_DLL extern l_int32 recogCorrelationBestChar ( L_RECOG *recog, PIX *pixs, BOX **pbox, l_float32 *pscore, l_int32 *pindex, char **pcharstr, PIX **ppixdb );
+LEPT_DLL extern l_int32 recogIdentifyPixa ( L_RECOG *recog, PIXA *pixa, PIX **ppixdb );
+LEPT_DLL extern l_int32 recogIdentifyPix ( L_RECOG *recog, PIX *pixs, PIX **ppixdb );
+LEPT_DLL extern l_int32 recogSkipIdentify ( L_RECOG *recog );
+LEPT_DLL extern void rchaDestroy ( L_RCHA **prcha );
+LEPT_DLL extern void rchDestroy ( L_RCH **prch );
+LEPT_DLL extern l_int32 rchaExtract ( L_RCHA *rcha, NUMA **pnaindex, NUMA **pnascore, SARRAY **psatext, NUMA **pnasample, NUMA **pnaxloc, NUMA **pnayloc, NUMA **pnawidth );
+LEPT_DLL extern l_int32 rchExtract ( L_RCH *rch, l_int32 *pindex, l_float32 *pscore, char **ptext, l_int32 *psample, l_int32 *pxloc, l_int32 *pyloc, l_int32 *pwidth );
+LEPT_DLL extern PIX * recogProcessToIdentify ( L_RECOG *recog, PIX *pixs, l_int32 pad );
+LEPT_DLL extern SARRAY * recogExtractNumbers ( L_RECOG *recog, BOXA *boxas, l_float32 scorethresh, l_int32 spacethresh, BOXAA **pbaa, NUMAA **pnaa );
+LEPT_DLL extern PIXA * showExtractNumbers ( PIX *pixs, SARRAY *sa, BOXAA *baa, NUMAA *naa, PIX **ppixdb );
+LEPT_DLL extern l_int32 recogTrainLabeled ( L_RECOG *recog, PIX *pixs, BOX *box, char *text, l_int32 debug );
+LEPT_DLL extern l_int32 recogProcessLabeled ( L_RECOG *recog, PIX *pixs, BOX *box, char *text, PIX **ppix );
+LEPT_DLL extern l_int32 recogAddSample ( L_RECOG *recog, PIX *pix, l_int32 debug );
+LEPT_DLL extern PIX * recogModifyTemplate ( L_RECOG *recog, PIX *pixs );
+LEPT_DLL extern l_int32 recogAverageSamples ( L_RECOG **precog, l_int32 debug );
+LEPT_DLL extern l_int32 pixaAccumulateSamples ( PIXA *pixa, PTA *pta, PIX **ppixd, l_float32 *px, l_float32 *py );
+LEPT_DLL extern l_int32 recogTrainingFinished ( L_RECOG **precog, l_int32 modifyflag, l_int32 minsize, l_float32 minfract );
+LEPT_DLL extern PIXA * recogFilterPixaBySize ( PIXA *pixas, l_int32 setsize, l_int32 maxkeep, l_float32 max_ht_ratio, NUMA **pna );
+LEPT_DLL extern PIXAA * recogSortPixaByClass ( PIXA *pixa, l_int32 setsize );
+LEPT_DLL extern l_int32 recogRemoveOutliers1 ( L_RECOG **precog, l_float32 minscore, l_int32 mintarget, l_int32 minsize, PIX **ppixsave, PIX **ppixrem );
+LEPT_DLL extern PIXA * pixaRemoveOutliers1 ( PIXA *pixas, l_float32 minscore, l_int32 mintarget, l_int32 minsize, PIX **ppixsave, PIX **ppixrem );
+LEPT_DLL extern l_int32 recogRemoveOutliers2 ( L_RECOG **precog, l_float32 minscore, l_int32 minsize, PIX **ppixsave, PIX **ppixrem );
+LEPT_DLL extern PIXA * pixaRemoveOutliers2 ( PIXA *pixas, l_float32 minscore, l_int32 minsize, PIX **ppixsave, PIX **ppixrem );
+LEPT_DLL extern PIXA * recogTrainFromBoot ( L_RECOG *recogboot, PIXA *pixas, l_float32 minscore, l_int32 threshold, l_int32 debug );
+LEPT_DLL extern l_int32 recogPadDigitTrainingSet ( L_RECOG **precog, l_int32 scaleh, l_int32 linew );
+LEPT_DLL extern l_int32 recogIsPaddingNeeded ( L_RECOG *recog, SARRAY **psa );
+LEPT_DLL extern PIXA * recogAddDigitPadTemplates ( L_RECOG *recog, SARRAY *sa );
+LEPT_DLL extern L_RECOG * recogMakeBootDigitRecog ( l_int32 scaleh, l_int32 linew, l_int32 maxyshift, l_int32 debug );
+LEPT_DLL extern PIXA * recogMakeBootDigitTemplates ( l_int32 debug );
+LEPT_DLL extern l_int32 recogShowContent ( FILE *fp, L_RECOG *recog, l_int32 index, l_int32 display );
+LEPT_DLL extern l_int32 recogDebugAverages ( L_RECOG **precog, l_int32 debug );
+LEPT_DLL extern l_int32 recogShowAverageTemplates ( L_RECOG *recog );
+LEPT_DLL extern l_int32 recogShowMatchesInRange ( L_RECOG *recog, PIXA *pixa, l_float32 minscore, l_float32 maxscore, l_int32 display );
+LEPT_DLL extern PIX * recogShowMatch ( L_RECOG *recog, PIX *pix1, PIX *pix2, BOX *box, l_int32 index, l_float32 score );
+LEPT_DLL extern l_int32 regTestSetup ( l_int32 argc, char **argv, L_REGPARAMS **prp );
+LEPT_DLL extern l_int32 regTestCleanup ( L_REGPARAMS *rp );
+LEPT_DLL extern l_int32 regTestCompareValues ( L_REGPARAMS *rp, l_float32 val1, l_float32 val2, l_float32 delta );
+LEPT_DLL extern l_int32 regTestCompareStrings ( L_REGPARAMS *rp, l_uint8 *string1, size_t bytes1, l_uint8 *string2, size_t bytes2 );
+LEPT_DLL extern l_int32 regTestComparePix ( L_REGPARAMS *rp, PIX *pix1, PIX *pix2 );
+LEPT_DLL extern l_int32 regTestCompareSimilarPix ( L_REGPARAMS *rp, PIX *pix1, PIX *pix2, l_int32 mindiff, l_float32 maxfract, l_int32 printstats );
+LEPT_DLL extern l_int32 regTestCheckFile ( L_REGPARAMS *rp, const char *localname );
+LEPT_DLL extern l_int32 regTestCompareFiles ( L_REGPARAMS *rp, l_int32 index1, l_int32 index2 );
+LEPT_DLL extern l_int32 regTestWritePixAndCheck ( L_REGPARAMS *rp, PIX *pix, l_int32 format );
+LEPT_DLL extern char * regTestGenLocalFilename ( L_REGPARAMS *rp, l_int32 index, l_int32 format );
+LEPT_DLL extern l_int32 pixRasterop ( PIX *pixd, l_int32 dx, l_int32 dy, l_int32 dw, l_int32 dh, l_int32 op, PIX *pixs, l_int32 sx, l_int32 sy );
+LEPT_DLL extern l_int32 pixRasteropVip ( PIX *pixd, l_int32 bx, l_int32 bw, l_int32 vshift, l_int32 incolor );
+LEPT_DLL extern l_int32 pixRasteropHip ( PIX *pixd, l_int32 by, l_int32 bh, l_int32 hshift, l_int32 incolor );
+LEPT_DLL extern PIX * pixTranslate ( PIX *pixd, PIX *pixs, l_int32 hshift, l_int32 vshift, l_int32 incolor );
+LEPT_DLL extern l_int32 pixRasteropIP ( PIX *pixd, l_int32 hshift, l_int32 vshift, l_int32 incolor );
+LEPT_DLL extern l_int32 pixRasteropFullImage ( PIX *pixd, PIX *pixs, l_int32 op );
+LEPT_DLL extern void rasteropVipLow ( l_uint32 *data, l_int32 pixw, l_int32 pixh, l_int32 depth, l_int32 wpl, l_int32 x, l_int32 w, l_int32 shift );
+LEPT_DLL extern void rasteropHipLow ( l_uint32 *data, l_int32 pixh, l_int32 depth, l_int32 wpl, l_int32 y, l_int32 h, l_int32 shift );
+LEPT_DLL extern void shiftDataHorizontalLow ( l_uint32 *datad, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_int32 shift );
+LEPT_DLL extern void rasteropUniLow ( l_uint32 *datad, l_int32 dpixw, l_int32 dpixh, l_int32 depth, l_int32 dwpl, l_int32 dx, l_int32 dy, l_int32 dw, l_int32 dh, l_int32 op );
+LEPT_DLL extern void rasteropLow ( l_uint32 *datad, l_int32 dpixw, l_int32 dpixh, l_int32 depth, l_int32 dwpl, l_int32 dx, l_int32 dy, l_int32 dw, l_int32 dh, l_int32 op, l_uint32 *datas, l_int32 spixw, l_int32 spixh, l_int32 swpl, l_int32 sx, l_int32 sy );
+LEPT_DLL extern PIX * pixRotate ( PIX *pixs, l_float32 angle, l_int32 type, l_int32 incolor, l_int32 width, l_int32 height );
+LEPT_DLL extern PIX * pixEmbedForRotation ( PIX *pixs, l_float32 angle, l_int32 incolor, l_int32 width, l_int32 height );
+LEPT_DLL extern PIX * pixRotateBySampling ( PIX *pixs, l_int32 xcen, l_int32 ycen, l_float32 angle, l_int32 incolor );
+LEPT_DLL extern PIX * pixRotateBinaryNice ( PIX *pixs, l_float32 angle, l_int32 incolor );
+LEPT_DLL extern PIX * pixRotateWithAlpha ( PIX *pixs, l_float32 angle, PIX *pixg, l_float32 fract );
+LEPT_DLL extern PIX * pixRotateAM ( PIX *pixs, l_float32 angle, l_int32 incolor );
+LEPT_DLL extern PIX * pixRotateAMColor ( PIX *pixs, l_float32 angle, l_uint32 colorval );
+LEPT_DLL extern PIX * pixRotateAMGray ( PIX *pixs, l_float32 angle, l_uint8 grayval );
+LEPT_DLL extern PIX * pixRotateAMCorner ( PIX *pixs, l_float32 angle, l_int32 incolor );
+LEPT_DLL extern PIX * pixRotateAMColorCorner ( PIX *pixs, l_float32 angle, l_uint32 fillval );
+LEPT_DLL extern PIX * pixRotateAMGrayCorner ( PIX *pixs, l_float32 angle, l_uint8 grayval );
+LEPT_DLL extern PIX * pixRotateAMColorFast ( PIX *pixs, l_float32 angle, l_uint32 colorval );
+LEPT_DLL extern void rotateAMColorLow ( l_uint32 *datad, l_int32 w, l_int32 h, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_float32 angle, l_uint32 colorval );
+LEPT_DLL extern void rotateAMGrayLow ( l_uint32 *datad, l_int32 w, l_int32 h, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_float32 angle, l_uint8 grayval );
+LEPT_DLL extern void rotateAMColorCornerLow ( l_uint32 *datad, l_int32 w, l_int32 h, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_float32 angle, l_uint32 colorval );
+LEPT_DLL extern void rotateAMGrayCornerLow ( l_uint32 *datad, l_int32 w, l_int32 h, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_float32 angle, l_uint8 grayval );
+LEPT_DLL extern void rotateAMColorFastLow ( l_uint32 *datad, l_int32 w, l_int32 h, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_float32 angle, l_uint32 colorval );
+LEPT_DLL extern PIX * pixRotateOrth ( PIX *pixs, l_int32 quads );
+LEPT_DLL extern PIX * pixRotate180 ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern PIX * pixRotate90 ( PIX *pixs, l_int32 direction );
+LEPT_DLL extern PIX * pixFlipLR ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern PIX * pixFlipTB ( PIX *pixd, PIX *pixs );
+LEPT_DLL extern PIX * pixRotateShear ( PIX *pixs, l_int32 xcen, l_int32 ycen, l_float32 angle, l_int32 incolor );
+LEPT_DLL extern PIX * pixRotate2Shear ( PIX *pixs, l_int32 xcen, l_int32 ycen, l_float32 angle, l_int32 incolor );
+LEPT_DLL extern PIX * pixRotate3Shear ( PIX *pixs, l_int32 xcen, l_int32 ycen, l_float32 angle, l_int32 incolor );
+LEPT_DLL extern l_int32 pixRotateShearIP ( PIX *pixs, l_int32 xcen, l_int32 ycen, l_float32 angle, l_int32 incolor );
+LEPT_DLL extern PIX * pixRotateShearCenter ( PIX *pixs, l_float32 angle, l_int32 incolor );
+LEPT_DLL extern l_int32 pixRotateShearCenterIP ( PIX *pixs, l_float32 angle, l_int32 incolor );
+LEPT_DLL extern PIX * pixStrokeWidthTransform ( PIX *pixs, l_int32 color, l_int32 depth, l_int32 nangles );
+LEPT_DLL extern PIX * pixRunlengthTransform ( PIX *pixs, l_int32 color, l_int32 direction, l_int32 depth );
+LEPT_DLL extern l_int32 pixFindHorizontalRuns ( PIX *pix, l_int32 y, l_int32 *xstart, l_int32 *xend, l_int32 *pn );
+LEPT_DLL extern l_int32 pixFindVerticalRuns ( PIX *pix, l_int32 x, l_int32 *ystart, l_int32 *yend, l_int32 *pn );
+LEPT_DLL extern NUMA * pixFindMaxRuns ( PIX *pix, l_int32 direction, NUMA **pnastart );
+LEPT_DLL extern l_int32 pixFindMaxHorizontalRunOnLine ( PIX *pix, l_int32 y, l_int32 *pxstart, l_int32 *psize );
+LEPT_DLL extern l_int32 pixFindMaxVerticalRunOnLine ( PIX *pix, l_int32 x, l_int32 *pystart, l_int32 *psize );
+LEPT_DLL extern l_int32 runlengthMembershipOnLine ( l_int32 *buffer, l_int32 size, l_int32 depth, l_int32 *start, l_int32 *end, l_int32 n );
+LEPT_DLL extern l_int32 * makeMSBitLocTab ( l_int32 bitval );
+LEPT_DLL extern SARRAY * sarrayCreate ( l_int32 n );
+LEPT_DLL extern SARRAY * sarrayCreateInitialized ( l_int32 n, char *initstr );
+LEPT_DLL extern SARRAY * sarrayCreateWordsFromString ( const char *string );
+LEPT_DLL extern SARRAY * sarrayCreateLinesFromString ( const char *string, l_int32 blankflag );
+LEPT_DLL extern void sarrayDestroy ( SARRAY **psa );
+LEPT_DLL extern SARRAY * sarrayCopy ( SARRAY *sa );
+LEPT_DLL extern SARRAY * sarrayClone ( SARRAY *sa );
+LEPT_DLL extern l_int32 sarrayAddString ( SARRAY *sa, char *string, l_int32 copyflag );
+LEPT_DLL extern char * sarrayRemoveString ( SARRAY *sa, l_int32 index );
+LEPT_DLL extern l_int32 sarrayReplaceString ( SARRAY *sa, l_int32 index, char *newstr, l_int32 copyflag );
+LEPT_DLL extern l_int32 sarrayClear ( SARRAY *sa );
+LEPT_DLL extern l_int32 sarrayGetCount ( SARRAY *sa );
+LEPT_DLL extern char ** sarrayGetArray ( SARRAY *sa, l_int32 *pnalloc, l_int32 *pn );
+LEPT_DLL extern char * sarrayGetString ( SARRAY *sa, l_int32 index, l_int32 copyflag );
+LEPT_DLL extern l_int32 sarrayGetRefcount ( SARRAY *sa );
+LEPT_DLL extern l_int32 sarrayChangeRefcount ( SARRAY *sa, l_int32 delta );
+LEPT_DLL extern char * sarrayToString ( SARRAY *sa, l_int32 addnlflag );
+LEPT_DLL extern char * sarrayToStringRange ( SARRAY *sa, l_int32 first, l_int32 nstrings, l_int32 addnlflag );
+LEPT_DLL extern l_int32 sarrayJoin ( SARRAY *sa1, SARRAY *sa2 );
+LEPT_DLL extern l_int32 sarrayAppendRange ( SARRAY *sa1, SARRAY *sa2, l_int32 start, l_int32 end );
+LEPT_DLL extern l_int32 sarrayPadToSameSize ( SARRAY *sa1, SARRAY *sa2, char *padstring );
+LEPT_DLL extern SARRAY * sarrayConvertWordsToLines ( SARRAY *sa, l_int32 linesize );
+LEPT_DLL extern l_int32 sarraySplitString ( SARRAY *sa, const char *str, const char *separators );
+LEPT_DLL extern SARRAY * sarraySelectBySubstring ( SARRAY *sain, const char *substr );
+LEPT_DLL extern SARRAY * sarraySelectByRange ( SARRAY *sain, l_int32 first, l_int32 last );
+LEPT_DLL extern l_int32 sarrayParseRange ( SARRAY *sa, l_int32 start, l_int32 *pactualstart, l_int32 *pend, l_int32 *pnewstart, const char *substr, l_int32 loc );
+LEPT_DLL extern SARRAY * sarrayRead ( const char *filename );
+LEPT_DLL extern SARRAY * sarrayReadStream ( FILE *fp );
+LEPT_DLL extern SARRAY * sarrayReadMem ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 sarrayWrite ( const char *filename, SARRAY *sa );
+LEPT_DLL extern l_int32 sarrayWriteStream ( FILE *fp, SARRAY *sa );
+LEPT_DLL extern l_int32 sarrayWriteMem ( l_uint8 **pdata, size_t *psize, SARRAY *sa );
+LEPT_DLL extern l_int32 sarrayAppend ( const char *filename, SARRAY *sa );
+LEPT_DLL extern SARRAY * getNumberedPathnamesInDirectory ( const char *dirname, const char *substr, l_int32 numpre, l_int32 numpost, l_int32 maxnum );
+LEPT_DLL extern SARRAY * getSortedPathnamesInDirectory ( const char *dirname, const char *substr, l_int32 first, l_int32 nfiles );
+LEPT_DLL extern SARRAY * convertSortedToNumberedPathnames ( SARRAY *sa, l_int32 numpre, l_int32 numpost, l_int32 maxnum );
+LEPT_DLL extern SARRAY * getFilenamesInDirectory ( const char *dirname );
+LEPT_DLL extern SARRAY * sarraySort ( SARRAY *saout, SARRAY *sain, l_int32 sortorder );
+LEPT_DLL extern SARRAY * sarraySortByIndex ( SARRAY *sain, NUMA *naindex );
+LEPT_DLL extern l_int32 stringCompareLexical ( const char *str1, const char *str2 );
+LEPT_DLL extern SARRAY * sarrayUnionByAset ( SARRAY *sa1, SARRAY *sa2 );
+LEPT_DLL extern SARRAY * sarrayRemoveDupsByAset ( SARRAY *sas );
+LEPT_DLL extern SARRAY * sarrayIntersectionByAset ( SARRAY *sa1, SARRAY *sa2 );
+LEPT_DLL extern L_ASET * l_asetCreateFromSarray ( SARRAY *sa );
+LEPT_DLL extern l_int32 sarrayRemoveDupsByHash ( SARRAY *sas, SARRAY **psad, L_DNAHASH **pdahash );
+LEPT_DLL extern SARRAY * sarrayIntersectionByHash ( SARRAY *sa1, SARRAY *sa2 );
+LEPT_DLL extern l_int32 sarrayFindStringByHash ( SARRAY *sa, L_DNAHASH *dahash, const char *str, l_int32 *pindex );
+LEPT_DLL extern L_DNAHASH * l_dnaHashCreateFromSarray ( SARRAY *sa );
+LEPT_DLL extern SARRAY * sarrayGenerateIntegers ( l_int32 n );
+LEPT_DLL extern PIX * pixScale ( PIX *pixs, l_float32 scalex, l_float32 scaley );
+LEPT_DLL extern PIX * pixScaleToSizeRel ( PIX *pixs, l_int32 delw, l_int32 delh );
+LEPT_DLL extern PIX * pixScaleToSize ( PIX *pixs, l_int32 wd, l_int32 hd );
+LEPT_DLL extern PIX * pixScaleGeneral ( PIX *pixs, l_float32 scalex, l_float32 scaley, l_float32 sharpfract, l_int32 sharpwidth );
+LEPT_DLL extern PIX * pixScaleLI ( PIX *pixs, l_float32 scalex, l_float32 scaley );
+LEPT_DLL extern PIX * pixScaleColorLI ( PIX *pixs, l_float32 scalex, l_float32 scaley );
+LEPT_DLL extern PIX * pixScaleColor2xLI ( PIX *pixs );
+LEPT_DLL extern PIX * pixScaleColor4xLI ( PIX *pixs );
+LEPT_DLL extern PIX * pixScaleGrayLI ( PIX *pixs, l_float32 scalex, l_float32 scaley );
+LEPT_DLL extern PIX * pixScaleGray2xLI ( PIX *pixs );
+LEPT_DLL extern PIX * pixScaleGray4xLI ( PIX *pixs );
+LEPT_DLL extern PIX * pixScaleBySampling ( PIX *pixs, l_float32 scalex, l_float32 scaley );
+LEPT_DLL extern PIX * pixScaleBySamplingToSize ( PIX *pixs, l_int32 wd, l_int32 hd );
+LEPT_DLL extern PIX * pixScaleByIntSampling ( PIX *pixs, l_int32 factor );
+LEPT_DLL extern PIX * pixScaleRGBToGrayFast ( PIX *pixs, l_int32 factor, l_int32 color );
+LEPT_DLL extern PIX * pixScaleRGBToBinaryFast ( PIX *pixs, l_int32 factor, l_int32 thresh );
+LEPT_DLL extern PIX * pixScaleGrayToBinaryFast ( PIX *pixs, l_int32 factor, l_int32 thresh );
+LEPT_DLL extern PIX * pixScaleSmooth ( PIX *pix, l_float32 scalex, l_float32 scaley );
+LEPT_DLL extern PIX * pixScaleRGBToGray2 ( PIX *pixs, l_float32 rwt, l_float32 gwt, l_float32 bwt );
+LEPT_DLL extern PIX * pixScaleAreaMap ( PIX *pix, l_float32 scalex, l_float32 scaley );
+LEPT_DLL extern PIX * pixScaleAreaMap2 ( PIX *pix );
+LEPT_DLL extern PIX * pixScaleBinary ( PIX *pixs, l_float32 scalex, l_float32 scaley );
+LEPT_DLL extern PIX * pixScaleToGray ( PIX *pixs, l_float32 scalefactor );
+LEPT_DLL extern PIX * pixScaleToGrayFast ( PIX *pixs, l_float32 scalefactor );
+LEPT_DLL extern PIX * pixScaleToGray2 ( PIX *pixs );
+LEPT_DLL extern PIX * pixScaleToGray3 ( PIX *pixs );
+LEPT_DLL extern PIX * pixScaleToGray4 ( PIX *pixs );
+LEPT_DLL extern PIX * pixScaleToGray6 ( PIX *pixs );
+LEPT_DLL extern PIX * pixScaleToGray8 ( PIX *pixs );
+LEPT_DLL extern PIX * pixScaleToGray16 ( PIX *pixs );
+LEPT_DLL extern PIX * pixScaleToGrayMipmap ( PIX *pixs, l_float32 scalefactor );
+LEPT_DLL extern PIX * pixScaleMipmap ( PIX *pixs1, PIX *pixs2, l_float32 scale );
+LEPT_DLL extern PIX * pixExpandReplicate ( PIX *pixs, l_int32 factor );
+LEPT_DLL extern PIX * pixScaleGray2xLIThresh ( PIX *pixs, l_int32 thresh );
+LEPT_DLL extern PIX * pixScaleGray2xLIDither ( PIX *pixs );
+LEPT_DLL extern PIX * pixScaleGray4xLIThresh ( PIX *pixs, l_int32 thresh );
+LEPT_DLL extern PIX * pixScaleGray4xLIDither ( PIX *pixs );
+LEPT_DLL extern PIX * pixScaleGrayMinMax ( PIX *pixs, l_int32 xfact, l_int32 yfact, l_int32 type );
+LEPT_DLL extern PIX * pixScaleGrayMinMax2 ( PIX *pixs, l_int32 type );
+LEPT_DLL extern PIX * pixScaleGrayRankCascade ( PIX *pixs, l_int32 level1, l_int32 level2, l_int32 level3, l_int32 level4 );
+LEPT_DLL extern PIX * pixScaleGrayRank2 ( PIX *pixs, l_int32 rank );
+LEPT_DLL extern l_int32 pixScaleAndTransferAlpha ( PIX *pixd, PIX *pixs, l_float32 scalex, l_float32 scaley );
+LEPT_DLL extern PIX * pixScaleWithAlpha ( PIX *pixs, l_float32 scalex, l_float32 scaley, PIX *pixg, l_float32 fract );
+LEPT_DLL extern void scaleColorLILow ( l_uint32 *datad, l_int32 wd, l_int32 hd, l_int32 wpld, l_uint32 *datas, l_int32 ws, l_int32 hs, l_int32 wpls );
+LEPT_DLL extern void scaleGrayLILow ( l_uint32 *datad, l_int32 wd, l_int32 hd, l_int32 wpld, l_uint32 *datas, l_int32 ws, l_int32 hs, l_int32 wpls );
+LEPT_DLL extern void scaleColor2xLILow ( l_uint32 *datad, l_int32 wpld, l_uint32 *datas, l_int32 ws, l_int32 hs, l_int32 wpls );
+LEPT_DLL extern void scaleColor2xLILineLow ( l_uint32 *lined, l_int32 wpld, l_uint32 *lines, l_int32 ws, l_int32 wpls, l_int32 lastlineflag );
+LEPT_DLL extern void scaleGray2xLILow ( l_uint32 *datad, l_int32 wpld, l_uint32 *datas, l_int32 ws, l_int32 hs, l_int32 wpls );
+LEPT_DLL extern void scaleGray2xLILineLow ( l_uint32 *lined, l_int32 wpld, l_uint32 *lines, l_int32 ws, l_int32 wpls, l_int32 lastlineflag );
+LEPT_DLL extern void scaleGray4xLILow ( l_uint32 *datad, l_int32 wpld, l_uint32 *datas, l_int32 ws, l_int32 hs, l_int32 wpls );
+LEPT_DLL extern void scaleGray4xLILineLow ( l_uint32 *lined, l_int32 wpld, l_uint32 *lines, l_int32 ws, l_int32 wpls, l_int32 lastlineflag );
+LEPT_DLL extern l_int32 scaleBySamplingLow ( l_uint32 *datad, l_int32 wd, l_int32 hd, l_int32 wpld, l_uint32 *datas, l_int32 ws, l_int32 hs, l_int32 d, l_int32 wpls );
+LEPT_DLL extern l_int32 scaleSmoothLow ( l_uint32 *datad, l_int32 wd, l_int32 hd, l_int32 wpld, l_uint32 *datas, l_int32 ws, l_int32 hs, l_int32 d, l_int32 wpls, l_int32 size );
+LEPT_DLL extern void scaleRGBToGray2Low ( l_uint32 *datad, l_int32 wd, l_int32 hd, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_float32 rwt, l_float32 gwt, l_float32 bwt );
+LEPT_DLL extern void scaleColorAreaMapLow ( l_uint32 *datad, l_int32 wd, l_int32 hd, l_int32 wpld, l_uint32 *datas, l_int32 ws, l_int32 hs, l_int32 wpls );
+LEPT_DLL extern void scaleGrayAreaMapLow ( l_uint32 *datad, l_int32 wd, l_int32 hd, l_int32 wpld, l_uint32 *datas, l_int32 ws, l_int32 hs, l_int32 wpls );
+LEPT_DLL extern void scaleAreaMapLow2 ( l_uint32 *datad, l_int32 wd, l_int32 hd, l_int32 wpld, l_uint32 *datas, l_int32 d, l_int32 wpls );
+LEPT_DLL extern l_int32 scaleBinaryLow ( l_uint32 *datad, l_int32 wd, l_int32 hd, l_int32 wpld, l_uint32 *datas, l_int32 ws, l_int32 hs, l_int32 wpls );
+LEPT_DLL extern void scaleToGray2Low ( l_uint32 *datad, l_int32 wd, l_int32 hd, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_uint32 *sumtab, l_uint8 *valtab );
+LEPT_DLL extern l_uint32 * makeSumTabSG2 ( void );
+LEPT_DLL extern l_uint8 * makeValTabSG2 ( void );
+LEPT_DLL extern void scaleToGray3Low ( l_uint32 *datad, l_int32 wd, l_int32 hd, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_uint32 *sumtab, l_uint8 *valtab );
+LEPT_DLL extern l_uint32 * makeSumTabSG3 ( void );
+LEPT_DLL extern l_uint8 * makeValTabSG3 ( void );
+LEPT_DLL extern void scaleToGray4Low ( l_uint32 *datad, l_int32 wd, l_int32 hd, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_uint32 *sumtab, l_uint8 *valtab );
+LEPT_DLL extern l_uint32 * makeSumTabSG4 ( void );
+LEPT_DLL extern l_uint8 * makeValTabSG4 ( void );
+LEPT_DLL extern void scaleToGray6Low ( l_uint32 *datad, l_int32 wd, l_int32 hd, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_int32 *tab8, l_uint8 *valtab );
+LEPT_DLL extern l_uint8 * makeValTabSG6 ( void );
+LEPT_DLL extern void scaleToGray8Low ( l_uint32 *datad, l_int32 wd, l_int32 hd, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_int32 *tab8, l_uint8 *valtab );
+LEPT_DLL extern l_uint8 * makeValTabSG8 ( void );
+LEPT_DLL extern void scaleToGray16Low ( l_uint32 *datad, l_int32 wd, l_int32 hd, l_int32 wpld, l_uint32 *datas, l_int32 wpls, l_int32 *tab8 );
+LEPT_DLL extern l_int32 scaleMipmapLow ( l_uint32 *datad, l_int32 wd, l_int32 hd, l_int32 wpld, l_uint32 *datas1, l_int32 wpls1, l_uint32 *datas2, l_int32 wpls2, l_float32 red );
+LEPT_DLL extern PIX * pixSeedfillBinary ( PIX *pixd, PIX *pixs, PIX *pixm, l_int32 connectivity );
+LEPT_DLL extern PIX * pixSeedfillBinaryRestricted ( PIX *pixd, PIX *pixs, PIX *pixm, l_int32 connectivity, l_int32 xmax, l_int32 ymax );
+LEPT_DLL extern PIX * pixHolesByFilling ( PIX *pixs, l_int32 connectivity );
+LEPT_DLL extern PIX * pixFillClosedBorders ( PIX *pixs, l_int32 connectivity );
+LEPT_DLL extern PIX * pixExtractBorderConnComps ( PIX *pixs, l_int32 connectivity );
+LEPT_DLL extern PIX * pixRemoveBorderConnComps ( PIX *pixs, l_int32 connectivity );
+LEPT_DLL extern PIX * pixFillBgFromBorder ( PIX *pixs, l_int32 connectivity );
+LEPT_DLL extern PIX * pixFillHolesToBoundingRect ( PIX *pixs, l_int32 minsize, l_float32 maxhfract, l_float32 minfgfract );
+LEPT_DLL extern l_int32 pixSeedfillGray ( PIX *pixs, PIX *pixm, l_int32 connectivity );
+LEPT_DLL extern l_int32 pixSeedfillGrayInv ( PIX *pixs, PIX *pixm, l_int32 connectivity );
+LEPT_DLL extern l_int32 pixSeedfillGraySimple ( PIX *pixs, PIX *pixm, l_int32 connectivity );
+LEPT_DLL extern l_int32 pixSeedfillGrayInvSimple ( PIX *pixs, PIX *pixm, l_int32 connectivity );
+LEPT_DLL extern PIX * pixSeedfillGrayBasin ( PIX *pixb, PIX *pixm, l_int32 delta, l_int32 connectivity );
+LEPT_DLL extern PIX * pixDistanceFunction ( PIX *pixs, l_int32 connectivity, l_int32 outdepth, l_int32 boundcond );
+LEPT_DLL extern PIX * pixSeedspread ( PIX *pixs, l_int32 connectivity );
+LEPT_DLL extern l_int32 pixLocalExtrema ( PIX *pixs, l_int32 maxmin, l_int32 minmax, PIX **ppixmin, PIX **ppixmax );
+LEPT_DLL extern l_int32 pixSelectedLocalExtrema ( PIX *pixs, l_int32 mindist, PIX **ppixmin, PIX **ppixmax );
+LEPT_DLL extern PIX * pixFindEqualValues ( PIX *pixs1, PIX *pixs2 );
+LEPT_DLL extern l_int32 pixSelectMinInConnComp ( PIX *pixs, PIX *pixm, PTA **ppta, NUMA **pnav );
+LEPT_DLL extern PIX * pixRemoveSeededComponents ( PIX *pixd, PIX *pixs, PIX *pixm, l_int32 connectivity, l_int32 bordersize );
+LEPT_DLL extern void seedfillBinaryLow ( l_uint32 *datas, l_int32 hs, l_int32 wpls, l_uint32 *datam, l_int32 hm, l_int32 wplm, l_int32 connectivity );
+LEPT_DLL extern void seedfillGrayLow ( l_uint32 *datas, l_int32 w, l_int32 h, l_int32 wpls, l_uint32 *datam, l_int32 wplm, l_int32 connectivity );
+LEPT_DLL extern void seedfillGrayInvLow ( l_uint32 *datas, l_int32 w, l_int32 h, l_int32 wpls, l_uint32 *datam, l_int32 wplm, l_int32 connectivity );
+LEPT_DLL extern void seedfillGrayLowSimple ( l_uint32 *datas, l_int32 w, l_int32 h, l_int32 wpls, l_uint32 *datam, l_int32 wplm, l_int32 connectivity );
+LEPT_DLL extern void seedfillGrayInvLowSimple ( l_uint32 *datas, l_int32 w, l_int32 h, l_int32 wpls, l_uint32 *datam, l_int32 wplm, l_int32 connectivity );
+LEPT_DLL extern void distanceFunctionLow ( l_uint32 *datad, l_int32 w, l_int32 h, l_int32 d, l_int32 wpld, l_int32 connectivity );
+LEPT_DLL extern void seedspreadLow ( l_uint32 *datad, l_int32 w, l_int32 h, l_int32 wpld, l_uint32 *datat, l_int32 wplt, l_int32 connectivity );
+LEPT_DLL extern SELA * selaCreate ( l_int32 n );
+LEPT_DLL extern void selaDestroy ( SELA **psela );
+LEPT_DLL extern SEL * selCreate ( l_int32 height, l_int32 width, const char *name );
+LEPT_DLL extern void selDestroy ( SEL **psel );
+LEPT_DLL extern SEL * selCopy ( SEL *sel );
+LEPT_DLL extern SEL * selCreateBrick ( l_int32 h, l_int32 w, l_int32 cy, l_int32 cx, l_int32 type );
+LEPT_DLL extern SEL * selCreateComb ( l_int32 factor1, l_int32 factor2, l_int32 direction );
+LEPT_DLL extern l_int32 ** create2dIntArray ( l_int32 sy, l_int32 sx );
+LEPT_DLL extern l_int32 selaAddSel ( SELA *sela, SEL *sel, const char *selname, l_int32 copyflag );
+LEPT_DLL extern l_int32 selaGetCount ( SELA *sela );
+LEPT_DLL extern SEL * selaGetSel ( SELA *sela, l_int32 i );
+LEPT_DLL extern char * selGetName ( SEL *sel );
+LEPT_DLL extern l_int32 selSetName ( SEL *sel, const char *name );
+LEPT_DLL extern l_int32 selaFindSelByName ( SELA *sela, const char *name, l_int32 *pindex, SEL **psel );
+LEPT_DLL extern l_int32 selGetElement ( SEL *sel, l_int32 row, l_int32 col, l_int32 *ptype );
+LEPT_DLL extern l_int32 selSetElement ( SEL *sel, l_int32 row, l_int32 col, l_int32 type );
+LEPT_DLL extern l_int32 selGetParameters ( SEL *sel, l_int32 *psy, l_int32 *psx, l_int32 *pcy, l_int32 *pcx );
+LEPT_DLL extern l_int32 selSetOrigin ( SEL *sel, l_int32 cy, l_int32 cx );
+LEPT_DLL extern l_int32 selGetTypeAtOrigin ( SEL *sel, l_int32 *ptype );
+LEPT_DLL extern char * selaGetBrickName ( SELA *sela, l_int32 hsize, l_int32 vsize );
+LEPT_DLL extern char * selaGetCombName ( SELA *sela, l_int32 size, l_int32 direction );
+LEPT_DLL extern l_int32 getCompositeParameters ( l_int32 size, l_int32 *psize1, l_int32 *psize2, char **pnameh1, char **pnameh2, char **pnamev1, char **pnamev2 );
+LEPT_DLL extern SARRAY * selaGetSelnames ( SELA *sela );
+LEPT_DLL extern l_int32 selFindMaxTranslations ( SEL *sel, l_int32 *pxp, l_int32 *pyp, l_int32 *pxn, l_int32 *pyn );
+LEPT_DLL extern SEL * selRotateOrth ( SEL *sel, l_int32 quads );
+LEPT_DLL extern SELA * selaRead ( const char *fname );
+LEPT_DLL extern SELA * selaReadStream ( FILE *fp );
+LEPT_DLL extern SEL * selRead ( const char *fname );
+LEPT_DLL extern SEL * selReadStream ( FILE *fp );
+LEPT_DLL extern l_int32 selaWrite ( const char *fname, SELA *sela );
+LEPT_DLL extern l_int32 selaWriteStream ( FILE *fp, SELA *sela );
+LEPT_DLL extern l_int32 selWrite ( const char *fname, SEL *sel );
+LEPT_DLL extern l_int32 selWriteStream ( FILE *fp, SEL *sel );
+LEPT_DLL extern SEL * selCreateFromString ( const char *text, l_int32 h, l_int32 w, const char *name );
+LEPT_DLL extern char * selPrintToString ( SEL *sel );
+LEPT_DLL extern SELA * selaCreateFromFile ( const char *filename );
+LEPT_DLL extern SEL * selCreateFromPta ( PTA *pta, l_int32 cy, l_int32 cx, const char *name );
+LEPT_DLL extern SEL * selCreateFromPix ( PIX *pix, l_int32 cy, l_int32 cx, const char *name );
+LEPT_DLL extern SEL * selReadFromColorImage ( const char *pathname );
+LEPT_DLL extern SEL * selCreateFromColorPix ( PIX *pixs, char *selname );
+LEPT_DLL extern PIX * selDisplayInPix ( SEL *sel, l_int32 size, l_int32 gthick );
+LEPT_DLL extern PIX * selaDisplayInPix ( SELA *sela, l_int32 size, l_int32 gthick, l_int32 spacing, l_int32 ncols );
+LEPT_DLL extern SELA * selaAddBasic ( SELA *sela );
+LEPT_DLL extern SELA * selaAddHitMiss ( SELA *sela );
+LEPT_DLL extern SELA * selaAddDwaLinear ( SELA *sela );
+LEPT_DLL extern SELA * selaAddDwaCombs ( SELA *sela );
+LEPT_DLL extern SELA * selaAddCrossJunctions ( SELA *sela, l_float32 hlsize, l_float32 mdist, l_int32 norient, l_int32 debugflag );
+LEPT_DLL extern SELA * selaAddTJunctions ( SELA *sela, l_float32 hlsize, l_float32 mdist, l_int32 norient, l_int32 debugflag );
+LEPT_DLL extern SELA * sela4ccThin ( SELA *sela );
+LEPT_DLL extern SELA * sela8ccThin ( SELA *sela );
+LEPT_DLL extern SELA * sela4and8ccThin ( SELA *sela );
+LEPT_DLL extern SEL * pixGenerateSelWithRuns ( PIX *pixs, l_int32 nhlines, l_int32 nvlines, l_int32 distance, l_int32 minlength, l_int32 toppix, l_int32 botpix, l_int32 leftpix, l_int32 rightpix, PIX **ppixe );
+LEPT_DLL extern SEL * pixGenerateSelRandom ( PIX *pixs, l_float32 hitfract, l_float32 missfract, l_int32 distance, l_int32 toppix, l_int32 botpix, l_int32 leftpix, l_int32 rightpix, PIX **ppixe );
+LEPT_DLL extern SEL * pixGenerateSelBoundary ( PIX *pixs, l_int32 hitdist, l_int32 missdist, l_int32 hitskip, l_int32 missskip, l_int32 topflag, l_int32 botflag, l_int32 leftflag, l_int32 rightflag, PIX **ppixe );
+LEPT_DLL extern NUMA * pixGetRunCentersOnLine ( PIX *pixs, l_int32 x, l_int32 y, l_int32 minlength );
+LEPT_DLL extern NUMA * pixGetRunsOnLine ( PIX *pixs, l_int32 x1, l_int32 y1, l_int32 x2, l_int32 y2 );
+LEPT_DLL extern PTA * pixSubsampleBoundaryPixels ( PIX *pixs, l_int32 skip );
+LEPT_DLL extern l_int32 adjacentOnPixelInRaster ( PIX *pixs, l_int32 x, l_int32 y, l_int32 *pxa, l_int32 *pya );
+LEPT_DLL extern PIX * pixDisplayHitMissSel ( PIX *pixs, SEL *sel, l_int32 scalefactor, l_uint32 hitcolor, l_uint32 misscolor );
+LEPT_DLL extern PIX * pixHShear ( PIX *pixd, PIX *pixs, l_int32 yloc, l_float32 radang, l_int32 incolor );
+LEPT_DLL extern PIX * pixVShear ( PIX *pixd, PIX *pixs, l_int32 xloc, l_float32 radang, l_int32 incolor );
+LEPT_DLL extern PIX * pixHShearCorner ( PIX *pixd, PIX *pixs, l_float32 radang, l_int32 incolor );
+LEPT_DLL extern PIX * pixVShearCorner ( PIX *pixd, PIX *pixs, l_float32 radang, l_int32 incolor );
+LEPT_DLL extern PIX * pixHShearCenter ( PIX *pixd, PIX *pixs, l_float32 radang, l_int32 incolor );
+LEPT_DLL extern PIX * pixVShearCenter ( PIX *pixd, PIX *pixs, l_float32 radang, l_int32 incolor );
+LEPT_DLL extern l_int32 pixHShearIP ( PIX *pixs, l_int32 yloc, l_float32 radang, l_int32 incolor );
+LEPT_DLL extern l_int32 pixVShearIP ( PIX *pixs, l_int32 xloc, l_float32 radang, l_int32 incolor );
+LEPT_DLL extern PIX * pixHShearLI ( PIX *pixs, l_int32 yloc, l_float32 radang, l_int32 incolor );
+LEPT_DLL extern PIX * pixVShearLI ( PIX *pixs, l_int32 xloc, l_float32 radang, l_int32 incolor );
+LEPT_DLL extern PIX * pixDeskewBoth ( PIX *pixs, l_int32 redsearch );
+LEPT_DLL extern PIX * pixDeskew ( PIX *pixs, l_int32 redsearch );
+LEPT_DLL extern PIX * pixFindSkewAndDeskew ( PIX *pixs, l_int32 redsearch, l_float32 *pangle, l_float32 *pconf );
+LEPT_DLL extern PIX * pixDeskewGeneral ( PIX *pixs, l_int32 redsweep, l_float32 sweeprange, l_float32 sweepdelta, l_int32 redsearch, l_int32 thresh, l_float32 *pangle, l_float32 *pconf );
+LEPT_DLL extern l_int32 pixFindSkew ( PIX *pixs, l_float32 *pangle, l_float32 *pconf );
+LEPT_DLL extern l_int32 pixFindSkewSweep ( PIX *pixs, l_float32 *pangle, l_int32 reduction, l_float32 sweeprange, l_float32 sweepdelta );
+LEPT_DLL extern l_int32 pixFindSkewSweepAndSearch ( PIX *pixs, l_float32 *pangle, l_float32 *pconf, l_int32 redsweep, l_int32 redsearch, l_float32 sweeprange, l_float32 sweepdelta, l_float32 minbsdelta );
+LEPT_DLL extern l_int32 pixFindSkewSweepAndSearchScore ( PIX *pixs, l_float32 *pangle, l_float32 *pconf, l_float32 *pendscore, l_int32 redsweep, l_int32 redsearch, l_float32 sweepcenter, l_float32 sweeprange, l_float32 sweepdelta, l_float32 minbsdelta );
+LEPT_DLL extern l_int32 pixFindSkewSweepAndSearchScorePivot ( PIX *pixs, l_float32 *pangle, l_float32 *pconf, l_float32 *pendscore, l_int32 redsweep, l_int32 redsearch, l_float32 sweepcenter, l_float32 sweeprange, l_float32 sweepdelta, l_float32 minbsdelta, l_int32 pivot );
+LEPT_DLL extern l_int32 pixFindSkewOrthogonalRange ( PIX *pixs, l_float32 *pangle, l_float32 *pconf, l_int32 redsweep, l_int32 redsearch, l_float32 sweeprange, l_float32 sweepdelta, l_float32 minbsdelta, l_float32 confprior );
+LEPT_DLL extern l_int32 pixFindDifferentialSquareSum ( PIX *pixs, l_float32 *psum );
+LEPT_DLL extern l_int32 pixFindNormalizedSquareSum ( PIX *pixs, l_float32 *phratio, l_float32 *pvratio, l_float32 *pfract );
+LEPT_DLL extern PIX * pixReadStreamSpix ( FILE *fp );
+LEPT_DLL extern l_int32 readHeaderSpix ( const char *filename, l_int32 *pwidth, l_int32 *pheight, l_int32 *pbps, l_int32 *pspp, l_int32 *piscmap );
+LEPT_DLL extern l_int32 freadHeaderSpix ( FILE *fp, l_int32 *pwidth, l_int32 *pheight, l_int32 *pbps, l_int32 *pspp, l_int32 *piscmap );
+LEPT_DLL extern l_int32 sreadHeaderSpix ( const l_uint32 *data, l_int32 *pwidth, l_int32 *pheight, l_int32 *pbps, l_int32 *pspp, l_int32 *piscmap );
+LEPT_DLL extern l_int32 pixWriteStreamSpix ( FILE *fp, PIX *pix );
+LEPT_DLL extern PIX * pixReadMemSpix ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 pixWriteMemSpix ( l_uint8 **pdata, size_t *psize, PIX *pix );
+LEPT_DLL extern l_int32 pixSerializeToMemory ( PIX *pixs, l_uint32 **pdata, size_t *pnbytes );
+LEPT_DLL extern PIX * pixDeserializeFromMemory ( const l_uint32 *data, size_t nbytes );
+LEPT_DLL extern L_STACK * lstackCreate ( l_int32 nalloc );
+LEPT_DLL extern void lstackDestroy ( L_STACK **plstack, l_int32 freeflag );
+LEPT_DLL extern l_int32 lstackAdd ( L_STACK *lstack, void *item );
+LEPT_DLL extern void * lstackRemove ( L_STACK *lstack );
+LEPT_DLL extern l_int32 lstackGetCount ( L_STACK *lstack );
+LEPT_DLL extern l_int32 lstackPrint ( FILE *fp, L_STACK *lstack );
+LEPT_DLL extern L_STRCODE * strcodeCreate ( l_int32 fileno );
+LEPT_DLL extern l_int32 strcodeCreateFromFile ( const char *filein, l_int32 fileno, const char *outdir );
+LEPT_DLL extern l_int32 strcodeGenerate ( L_STRCODE *strcode, const char *filein, const char *type );
+LEPT_DLL extern l_int32 strcodeFinalize ( L_STRCODE **pstrcode, const char *outdir );
+LEPT_DLL extern l_int32 l_getStructStrFromFile ( const char *filename, l_int32 field, char **pstr );
+LEPT_DLL extern l_int32 pixFindStrokeLength ( PIX *pixs, l_int32 *tab8, l_int32 *plength );
+LEPT_DLL extern l_int32 pixFindStrokeWidth ( PIX *pixs, l_float32 thresh, l_int32 *tab8, l_float32 *pwidth, NUMA **pnahisto );
+LEPT_DLL extern NUMA * pixaFindStrokeWidth ( PIXA *pixa, l_float32 thresh, l_int32 *tab8, l_int32 debug );
+LEPT_DLL extern PIXA * pixaModifyStrokeWidth ( PIXA *pixas, l_float32 targetw );
+LEPT_DLL extern PIX * pixModifyStrokeWidth ( PIX *pixs, l_float32 width, l_float32 targetw );
+LEPT_DLL extern PIXA * pixaSetStrokeWidth ( PIXA *pixas, l_int32 width, l_int32 thinfirst, l_int32 connectivity );
+LEPT_DLL extern PIX * pixSetStrokeWidth ( PIX *pixs, l_int32 width, l_int32 thinfirst, l_int32 connectivity );
+LEPT_DLL extern l_int32 * sudokuReadFile ( const char *filename );
+LEPT_DLL extern l_int32 * sudokuReadString ( const char *str );
+LEPT_DLL extern L_SUDOKU * sudokuCreate ( l_int32 *array );
+LEPT_DLL extern void sudokuDestroy ( L_SUDOKU **psud );
+LEPT_DLL extern l_int32 sudokuSolve ( L_SUDOKU *sud );
+LEPT_DLL extern l_int32 sudokuTestUniqueness ( l_int32 *array, l_int32 *punique );
+LEPT_DLL extern L_SUDOKU * sudokuGenerate ( l_int32 *array, l_int32 seed, l_int32 minelems, l_int32 maxtries );
+LEPT_DLL extern l_int32 sudokuOutput ( L_SUDOKU *sud, l_int32 arraytype );
+LEPT_DLL extern PIX * pixAddSingleTextblock ( PIX *pixs, L_BMF *bmf, const char *textstr, l_uint32 val, l_int32 location, l_int32 *poverflow );
+LEPT_DLL extern PIX * pixAddTextlines ( PIX *pixs, L_BMF *bmf, const char *textstr, l_uint32 val, l_int32 location );
+LEPT_DLL extern l_int32 pixSetTextblock ( PIX *pixs, L_BMF *bmf, const char *textstr, l_uint32 val, l_int32 x0, l_int32 y0, l_int32 wtext, l_int32 firstindent, l_int32 *poverflow );
+LEPT_DLL extern l_int32 pixSetTextline ( PIX *pixs, L_BMF *bmf, const char *textstr, l_uint32 val, l_int32 x0, l_int32 y0, l_int32 *pwidth, l_int32 *poverflow );
+LEPT_DLL extern PIXA * pixaAddTextNumber ( PIXA *pixas, L_BMF *bmf, NUMA *na, l_uint32 val, l_int32 location );
+LEPT_DLL extern PIXA * pixaAddTextlines ( PIXA *pixas, L_BMF *bmf, SARRAY *sa, l_uint32 val, l_int32 location );
+LEPT_DLL extern l_int32 pixaAddPixWithText ( PIXA *pixa, PIX *pixs, l_int32 reduction, L_BMF *bmf, const char *textstr, l_uint32 val, l_int32 location );
+LEPT_DLL extern SARRAY * bmfGetLineStrings ( L_BMF *bmf, const char *textstr, l_int32 maxw, l_int32 firstindent, l_int32 *ph );
+LEPT_DLL extern NUMA * bmfGetWordWidths ( L_BMF *bmf, const char *textstr, SARRAY *sa );
+LEPT_DLL extern l_int32 bmfGetStringWidth ( L_BMF *bmf, const char *textstr, l_int32 *pw );
+LEPT_DLL extern SARRAY * splitStringToParagraphs ( char *textstr, l_int32 splitflag );
+LEPT_DLL extern PIX * pixReadTiff ( const char *filename, l_int32 n );
+LEPT_DLL extern PIX * pixReadStreamTiff ( FILE *fp, l_int32 n );
+LEPT_DLL extern l_int32 pixWriteTiff ( const char *filename, PIX *pix, l_int32 comptype, const char *modestr );
+LEPT_DLL extern l_int32 pixWriteTiffCustom ( const char *filename, PIX *pix, l_int32 comptype, const char *modestr, NUMA *natags, SARRAY *savals, SARRAY *satypes, NUMA *nasizes );
+LEPT_DLL extern l_int32 pixWriteStreamTiff ( FILE *fp, PIX *pix, l_int32 comptype );
+LEPT_DLL extern l_int32 pixWriteStreamTiffWA ( FILE *fp, PIX *pix, l_int32 comptype, const char *modestr );
+LEPT_DLL extern PIX * pixReadFromMultipageTiff ( const char *fname, size_t *poffset );
+LEPT_DLL extern PIXA * pixaReadMultipageTiff ( const char *filename );
+LEPT_DLL extern l_int32 pixaWriteMultipageTiff ( const char *fname, PIXA *pixa );
+LEPT_DLL extern l_int32 writeMultipageTiff ( const char *dirin, const char *substr, const char *fileout );
+LEPT_DLL extern l_int32 writeMultipageTiffSA ( SARRAY *sa, const char *fileout );
+LEPT_DLL extern l_int32 fprintTiffInfo ( FILE *fpout, const char *tiffile );
+LEPT_DLL extern l_int32 tiffGetCount ( FILE *fp, l_int32 *pn );
+LEPT_DLL extern l_int32 getTiffResolution ( FILE *fp, l_int32 *pxres, l_int32 *pyres );
+LEPT_DLL extern l_int32 readHeaderTiff ( const char *filename, l_int32 n, l_int32 *pwidth, l_int32 *pheight, l_int32 *pbps, l_int32 *pspp, l_int32 *pres, l_int32 *pcmap, l_int32 *pformat );
+LEPT_DLL extern l_int32 freadHeaderTiff ( FILE *fp, l_int32 n, l_int32 *pwidth, l_int32 *pheight, l_int32 *pbps, l_int32 *pspp, l_int32 *pres, l_int32 *pcmap, l_int32 *pformat );
+LEPT_DLL extern l_int32 readHeaderMemTiff ( const l_uint8 *cdata, size_t size, l_int32 n, l_int32 *pwidth, l_int32 *pheight, l_int32 *pbps, l_int32 *pspp, l_int32 *pres, l_int32 *pcmap, l_int32 *pformat );
+LEPT_DLL extern l_int32 findTiffCompression ( FILE *fp, l_int32 *pcomptype );
+LEPT_DLL extern l_int32 extractG4DataFromFile ( const char *filein, l_uint8 **pdata, size_t *pnbytes, l_int32 *pw, l_int32 *ph, l_int32 *pminisblack );
+LEPT_DLL extern PIX * pixReadMemTiff ( const l_uint8 *cdata, size_t size, l_int32 n );
+LEPT_DLL extern PIX * pixReadMemFromMultipageTiff ( const l_uint8 *cdata, size_t size, size_t *poffset );
+LEPT_DLL extern PIXA * pixaReadMemMultipageTiff ( const l_uint8 *data, size_t size );
+LEPT_DLL extern l_int32 pixaWriteMemMultipageTiff ( l_uint8 **pdata, size_t *psize, PIXA *pixa );
+LEPT_DLL extern l_int32 pixWriteMemTiff ( l_uint8 **pdata, size_t *psize, PIX *pix, l_int32 comptype );
+LEPT_DLL extern l_int32 pixWriteMemTiffCustom ( l_uint8 **pdata, size_t *psize, PIX *pix, l_int32 comptype, NUMA *natags, SARRAY *savals, SARRAY *satypes, NUMA *nasizes );
+LEPT_DLL extern l_int32 setMsgSeverity ( l_int32 newsev );
+LEPT_DLL extern l_int32 returnErrorInt ( const char *msg, const char *procname, l_int32 ival );
+LEPT_DLL extern l_float32 returnErrorFloat ( const char *msg, const char *procname, l_float32 fval );
+LEPT_DLL extern void * returnErrorPtr ( const char *msg, const char *procname, void *pval );
+LEPT_DLL extern l_int32 filesAreIdentical ( const char *fname1, const char *fname2, l_int32 *psame );
+LEPT_DLL extern l_uint16 convertOnLittleEnd16 ( l_uint16 shortin );
+LEPT_DLL extern l_uint16 convertOnBigEnd16 ( l_uint16 shortin );
+LEPT_DLL extern l_uint32 convertOnLittleEnd32 ( l_uint32 wordin );
+LEPT_DLL extern l_uint32 convertOnBigEnd32 ( l_uint32 wordin );
+LEPT_DLL extern l_int32 fileCorruptByDeletion ( const char *filein, l_float32 loc, l_float32 size, const char *fileout );
+LEPT_DLL extern l_int32 fileCorruptByMutation ( const char *filein, l_float32 loc, l_float32 size, const char *fileout );
+LEPT_DLL extern l_int32 genRandomIntegerInRange ( l_int32 range, l_int32 seed, l_int32 *pval );
+LEPT_DLL extern l_int32 lept_roundftoi ( l_float32 fval );
+LEPT_DLL extern l_int32 l_hashStringToUint64 ( const char *str, l_uint64 *phash );
+LEPT_DLL extern l_int32 l_hashPtToUint64 ( l_int32 x, l_int32 y, l_uint64 *phash );
+LEPT_DLL extern l_int32 l_hashFloat64ToUint64 ( l_int32 nbuckets, l_float64 val, l_uint64 *phash );
+LEPT_DLL extern l_int32 findNextLargerPrime ( l_int32 start, l_uint32 *pprime );
+LEPT_DLL extern l_int32 lept_isPrime ( l_uint64 n, l_int32 *pis_prime, l_uint32 *pfactor );
+LEPT_DLL extern l_uint32 convertBinaryToGrayCode ( l_uint32 val );
+LEPT_DLL extern l_uint32 convertGrayCodeToBinary ( l_uint32 val );
+LEPT_DLL extern char * getLeptonicaVersion (  );
+LEPT_DLL extern void startTimer ( void );
+LEPT_DLL extern l_float32 stopTimer ( void );
+LEPT_DLL extern L_TIMER startTimerNested ( void );
+LEPT_DLL extern l_float32 stopTimerNested ( L_TIMER rusage_start );
+LEPT_DLL extern void l_getCurrentTime ( l_int32 *sec, l_int32 *usec );
+LEPT_DLL extern L_WALLTIMER * startWallTimer ( void );
+LEPT_DLL extern l_float32 stopWallTimer ( L_WALLTIMER **ptimer );
+LEPT_DLL extern char * l_getFormattedDate (  );
+LEPT_DLL extern char * stringNew ( const char *src );
+LEPT_DLL extern l_int32 stringCopy ( char *dest, const char *src, l_int32 n );
+LEPT_DLL extern l_int32 stringReplace ( char **pdest, const char *src );
+LEPT_DLL extern l_int32 stringLength ( const char *src, size_t size );
+LEPT_DLL extern l_int32 stringCat ( char *dest, size_t size, const char *src );
+LEPT_DLL extern char * stringConcatNew ( const char *first, ... );
+LEPT_DLL extern char * stringJoin ( const char *src1, const char *src2 );
+LEPT_DLL extern l_int32 stringJoinIP ( char **psrc1, const char *src2 );
+LEPT_DLL extern char * stringReverse ( const char *src );
+LEPT_DLL extern char * strtokSafe ( char *cstr, const char *seps, char **psaveptr );
+LEPT_DLL extern l_int32 stringSplitOnToken ( char *cstr, const char *seps, char **phead, char **ptail );
+LEPT_DLL extern char * stringRemoveChars ( const char *src, const char *remchars );
+LEPT_DLL extern l_int32 stringFindSubstr ( const char *src, const char *sub, l_int32 *ploc );
+LEPT_DLL extern char * stringReplaceSubstr ( const char *src, const char *sub1, const char *sub2, l_int32 *pfound, l_int32 *ploc );
+LEPT_DLL extern char * stringReplaceEachSubstr ( const char *src, const char *sub1, const char *sub2, l_int32 *pcount );
+LEPT_DLL extern L_DNA * arrayFindEachSequence ( const l_uint8 *data, size_t datalen, const l_uint8 *sequence, size_t seqlen );
+LEPT_DLL extern l_int32 arrayFindSequence ( const l_uint8 *data, size_t datalen, const l_uint8 *sequence, size_t seqlen, l_int32 *poffset, l_int32 *pfound );
+LEPT_DLL extern void * reallocNew ( void **pindata, l_int32 oldsize, l_int32 newsize );
+LEPT_DLL extern l_uint8 * l_binaryRead ( const char *filename, size_t *pnbytes );
+LEPT_DLL extern l_uint8 * l_binaryReadStream ( FILE *fp, size_t *pnbytes );
+LEPT_DLL extern l_uint8 * l_binaryReadSelect ( const char *filename, size_t start, size_t nbytes, size_t *pnread );
+LEPT_DLL extern l_uint8 * l_binaryReadSelectStream ( FILE *fp, size_t start, size_t nbytes, size_t *pnread );
+LEPT_DLL extern l_int32 l_binaryWrite ( const char *filename, const char *operation, void *data, size_t nbytes );
+LEPT_DLL extern size_t nbytesInFile ( const char *filename );
+LEPT_DLL extern size_t fnbytesInFile ( FILE *fp );
+LEPT_DLL extern l_uint8 * l_binaryCopy ( l_uint8 *datas, size_t size );
+LEPT_DLL extern l_int32 fileCopy ( const char *srcfile, const char *newfile );
+LEPT_DLL extern l_int32 fileConcatenate ( const char *srcfile, const char *destfile );
+LEPT_DLL extern l_int32 fileAppendString ( const char *filename, const char *str );
+LEPT_DLL extern FILE * fopenReadStream ( const char *filename );
+LEPT_DLL extern FILE * fopenWriteStream ( const char *filename, const char *modestring );
+LEPT_DLL extern FILE * fopenReadFromMemory ( const l_uint8 *data, size_t size );
+LEPT_DLL extern FILE * fopenWriteWinTempfile (  );
+LEPT_DLL extern FILE * lept_fopen ( const char *filename, const char *mode );
+LEPT_DLL extern l_int32 lept_fclose ( FILE *fp );
+LEPT_DLL extern void * lept_calloc ( size_t nmemb, size_t size );
+LEPT_DLL extern void lept_free ( void *ptr );
+LEPT_DLL extern l_int32 lept_mkdir ( const char *subdir );
+LEPT_DLL extern l_int32 lept_rmdir ( const char *subdir );
+LEPT_DLL extern void lept_direxists ( const char *dir, l_int32 *pexists );
+LEPT_DLL extern l_int32 lept_rm_match ( const char *subdir, const char *substr );
+LEPT_DLL extern l_int32 lept_rm ( const char *subdir, const char *tail );
+LEPT_DLL extern l_int32 lept_rmfile ( const char *filepath );
+LEPT_DLL extern l_int32 lept_mv ( const char *srcfile, const char *newdir, const char *newtail, char **pnewpath );
+LEPT_DLL extern l_int32 lept_cp ( const char *srcfile, const char *newdir, const char *newtail, char **pnewpath );
+LEPT_DLL extern l_int32 splitPathAtDirectory ( const char *pathname, char **pdir, char **ptail );
+LEPT_DLL extern l_int32 splitPathAtExtension ( const char *pathname, char **pbasename, char **pextension );
+LEPT_DLL extern char * pathJoin ( const char *dir, const char *fname );
+LEPT_DLL extern char * appendSubdirs ( const char *basedir, const char *subdirs );
+LEPT_DLL extern l_int32 convertSepCharsInPath ( char *path, l_int32 type );
+LEPT_DLL extern char * genPathname ( const char *dir, const char *fname );
+LEPT_DLL extern l_int32 makeTempDirname ( char *result, size_t nbytes, const char *subdir );
+LEPT_DLL extern l_int32 modifyTrailingSlash ( char *path, size_t nbytes, l_int32 flag );
+LEPT_DLL extern char * l_makeTempFilename (  );
+LEPT_DLL extern l_int32 extractNumberFromFilename ( const char *fname, l_int32 numpre, l_int32 numpost );
+LEPT_DLL extern PIX * pixSimpleCaptcha ( PIX *pixs, l_int32 border, l_int32 nterms, l_uint32 seed, l_uint32 color, l_int32 cmapflag );
+LEPT_DLL extern PIX * pixRandomHarmonicWarp ( PIX *pixs, l_float32 xmag, l_float32 ymag, l_float32 xfreq, l_float32 yfreq, l_int32 nx, l_int32 ny, l_uint32 seed, l_int32 grayval );
+LEPT_DLL extern PIX * pixWarpStereoscopic ( PIX *pixs, l_int32 zbend, l_int32 zshiftt, l_int32 zshiftb, l_int32 ybendt, l_int32 ybendb, l_int32 redleft );
+LEPT_DLL extern PIX * pixStretchHorizontal ( PIX *pixs, l_int32 dir, l_int32 type, l_int32 hmax, l_int32 operation, l_int32 incolor );
+LEPT_DLL extern PIX * pixStretchHorizontalSampled ( PIX *pixs, l_int32 dir, l_int32 type, l_int32 hmax, l_int32 incolor );
+LEPT_DLL extern PIX * pixStretchHorizontalLI ( PIX *pixs, l_int32 dir, l_int32 type, l_int32 hmax, l_int32 incolor );
+LEPT_DLL extern PIX * pixQuadraticVShear ( PIX *pixs, l_int32 dir, l_int32 vmaxt, l_int32 vmaxb, l_int32 operation, l_int32 incolor );
+LEPT_DLL extern PIX * pixQuadraticVShearSampled ( PIX *pixs, l_int32 dir, l_int32 vmaxt, l_int32 vmaxb, l_int32 incolor );
+LEPT_DLL extern PIX * pixQuadraticVShearLI ( PIX *pixs, l_int32 dir, l_int32 vmaxt, l_int32 vmaxb, l_int32 incolor );
+LEPT_DLL extern PIX * pixStereoFromPair ( PIX *pix1, PIX *pix2, l_float32 rwt, l_float32 gwt, l_float32 bwt );
+LEPT_DLL extern L_WSHED * wshedCreate ( PIX *pixs, PIX *pixm, l_int32 mindepth, l_int32 debugflag );
+LEPT_DLL extern void wshedDestroy ( L_WSHED **pwshed );
+LEPT_DLL extern l_int32 wshedApply ( L_WSHED *wshed );
+LEPT_DLL extern l_int32 wshedBasins ( L_WSHED *wshed, PIXA **ppixa, NUMA **pnalevels );
+LEPT_DLL extern PIX * wshedRenderFill ( L_WSHED *wshed );
+LEPT_DLL extern PIX * wshedRenderColors ( L_WSHED *wshed );
+LEPT_DLL extern PIX * pixReadStreamWebP ( FILE *fp );
+LEPT_DLL extern PIX * pixReadMemWebP ( const l_uint8 *filedata, size_t filesize );
+LEPT_DLL extern l_int32 readHeaderWebP ( const char *filename, l_int32 *pw, l_int32 *ph, l_int32 *pspp );
+LEPT_DLL extern l_int32 readHeaderMemWebP ( const l_uint8 *data, size_t size, l_int32 *pw, l_int32 *ph, l_int32 *pspp );
+LEPT_DLL extern l_int32 pixWriteWebP ( const char *filename, PIX *pixs, l_int32 quality, l_int32 lossless );
+LEPT_DLL extern l_int32 pixWriteStreamWebP ( FILE *fp, PIX *pixs, l_int32 quality, l_int32 lossless );
+LEPT_DLL extern l_int32 pixWriteMemWebP ( l_uint8 **pencdata, size_t *pencsize, PIX *pixs, l_int32 quality, l_int32 lossless );
+LEPT_DLL extern l_int32 pixaWriteFiles ( const char *rootname, PIXA *pixa, l_int32 format );
+LEPT_DLL extern l_int32 pixWrite ( const char *fname, PIX *pix, l_int32 format );
+LEPT_DLL extern l_int32 pixWriteAutoFormat ( const char *filename, PIX *pix );
+LEPT_DLL extern l_int32 pixWriteStream ( FILE *fp, PIX *pix, l_int32 format );
+LEPT_DLL extern l_int32 pixWriteImpliedFormat ( const char *filename, PIX *pix, l_int32 quality, l_int32 progressive );
+LEPT_DLL extern l_int32 pixChooseOutputFormat ( PIX *pix );
+LEPT_DLL extern l_int32 getImpliedFileFormat ( const char *filename );
+LEPT_DLL extern l_int32 pixGetAutoFormat ( PIX *pix, l_int32 *pformat );
+LEPT_DLL extern const char * getFormatExtension ( l_int32 format );
+LEPT_DLL extern l_int32 pixWriteMem ( l_uint8 **pdata, size_t *psize, PIX *pix, l_int32 format );
+LEPT_DLL extern l_int32 l_fileDisplay ( const char *fname, l_int32 x, l_int32 y, l_float32 scale );
+LEPT_DLL extern l_int32 pixDisplay ( PIX *pixs, l_int32 x, l_int32 y );
+LEPT_DLL extern l_int32 pixDisplayWithTitle ( PIX *pixs, l_int32 x, l_int32 y, const char *title, l_int32 dispflag );
+LEPT_DLL extern l_int32 pixSaveTiled ( PIX *pixs, PIXA *pixa, l_float32 scalefactor, l_int32 newrow, l_int32 space, l_int32 dp );
+LEPT_DLL extern l_int32 pixSaveTiledOutline ( PIX *pixs, PIXA *pixa, l_float32 scalefactor, l_int32 newrow, l_int32 space, l_int32 linewidth, l_int32 dp );
+LEPT_DLL extern l_int32 pixSaveTiledWithText ( PIX *pixs, PIXA *pixa, l_int32 outwidth, l_int32 newrow, l_int32 space, l_int32 linewidth, L_BMF *bmf, const char *textstr, l_uint32 val, l_int32 location );
+LEPT_DLL extern void l_chooseDisplayProg ( l_int32 selection );
+LEPT_DLL extern l_int32 pixDisplayWrite ( PIX *pixs, l_int32 reduction );
+LEPT_DLL extern l_int32 pixDisplayWriteFormat ( PIX *pixs, l_int32 reduction, l_int32 format );
+LEPT_DLL extern l_int32 pixDisplayMultiple ( l_int32 res, l_float32 scalefactor, const char *fileout );
+LEPT_DLL extern l_uint8 * zlibCompress ( l_uint8 *datain, size_t nin, size_t *pnout );
+LEPT_DLL extern l_uint8 * zlibUncompress ( l_uint8 *datain, size_t nin, size_t *pnout );
+
+#ifdef __cplusplus
+}
+#endif  /* __cplusplus */
+#endif /* NO_PROTOS */
+
+
+#endif /* LEPTONICA_ALLHEADERS_H */
+
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/alltypes.h b/third_party/leptonica/uos/aarch64/include/leptonica/alltypes.h
new file mode 100644
index 00000000..a84c0bfa
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/alltypes.h
@@ -0,0 +1,66 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_ALLTYPES_H
+#define  LEPTONICA_ALLTYPES_H
+
+    /* Standard */
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+
+    /* General and configuration defs */
+#include "endianness.h"
+#include "environ.h"
+
+    /* Generic and non-image-specific containers */
+#include "array.h"
+#include "bbuffer.h"
+#include "heap.h"
+#include "list.h"
+#include "ptra.h"
+#include "queue.h"
+#include "rbtree.h"
+#include "stack.h"
+
+    /* Imaging */
+#include "arrayaccess.h"
+#include "bmf.h"
+#include "ccbord.h"
+#include "dewarp.h"
+#include "gplot.h"
+#include "imageio.h"
+#include "jbclass.h"
+#include "morph.h"
+#include "pix.h"
+#include "recog.h"
+#include "regutils.h"
+#include "stringcode.h"
+#include "sudoku.h"
+#include "watershed.h"
+
+
+#endif /* LEPTONICA_ALLTYPES_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/array.h b/third_party/leptonica/uos/aarch64/include/leptonica/array.h
new file mode 100644
index 00000000..fa5074fd
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/array.h
@@ -0,0 +1,159 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_ARRAY_H
+#define  LEPTONICA_ARRAY_H
+
+/*!
+ * \file array.h
+ *
+ * <pre>
+ *  Contains the following structs:
+ *      struct Numa
+ *      struct Numaa
+ *      struct L_Dna
+ *      struct L_Dnaa
+ *      struct L_DnaHash
+ *      struct Sarray
+ *      struct L_Bytea
+ *
+ *  Contains definitions for:
+ *      Numa interpolation flags
+ *      Numa and FPix border flags
+ *      Numa data type conversion to string
+ * </pre>
+ */
+
+
+/*------------------------------------------------------------------------*
+ *                             Array Structs                              *
+ *------------------------------------------------------------------------*/
+
+/*! Numa version for serialization */
+#define  NUMA_VERSION_NUMBER     1
+
+    /*! Number array: an array of floats */
+struct Numa
+{
+    l_int32          nalloc;    /*!< size of allocated number array      */
+    l_int32          n;         /*!< number of numbers saved             */
+    l_int32          refcount;  /*!< reference count (1 if no clones)    */
+    l_float32        startx;    /*!< x value assigned to array[0]        */
+    l_float32        delx;      /*!< change in x value as i --> i + 1    */
+    l_float32       *array;     /*!< number array                        */
+};
+typedef struct Numa  NUMA;
+
+    /*! Array of number arrays */
+struct Numaa
+{
+    l_int32          nalloc;    /*!< size of allocated ptr array          */
+    l_int32          n;         /*!< number of Numa saved                 */
+    struct Numa    **numa;      /*!< array of Numa                        */
+};
+typedef struct Numaa  NUMAA;
+
+/*! Dna version for serialization */
+#define  DNA_VERSION_NUMBER     1
+
+    /*! Double number array: an array of doubles */
+struct L_Dna
+{
+    l_int32          nalloc;    /*!< size of allocated number array      */
+    l_int32          n;         /*!< number of numbers saved             */
+    l_int32          refcount;  /*!< reference count (1 if no clones)    */
+    l_float64        startx;    /*!< x value assigned to array[0]        */
+    l_float64        delx;      /*!< change in x value as i --> i + 1    */
+    l_float64       *array;     /*!< number array                        */
+};
+typedef struct L_Dna  L_DNA;
+
+    /*! Array of double number arrays */
+struct L_Dnaa
+{
+    l_int32          nalloc;    /*!< size of allocated ptr array          */
+    l_int32          n;         /*!< number of L_Dna saved                */
+    struct L_Dna   **dna;       /*!< array of L_Dna                       */
+};
+typedef struct L_Dnaa  L_DNAA;
+
+    /*! A hash table of Dnas */
+struct L_DnaHash
+{
+    l_int32          nbuckets;
+    l_int32          initsize;   /*!< initial size of each dna that is made  */
+    struct L_Dna   **dna;        /*!< array of L_Dna                       */
+};
+typedef struct L_DnaHash L_DNAHASH;
+
+/*! Sarray version for serialization */
+#define  SARRAY_VERSION_NUMBER     1
+
+    /*! String array: an array of C strings */
+struct Sarray
+{
+    l_int32          nalloc;    /*!< size of allocated ptr array         */
+    l_int32          n;         /*!< number of strings allocated         */
+    l_int32          refcount;  /*!< reference count (1 if no clones)    */
+    char           **array;     /*!< string array                        */
+};
+typedef struct Sarray SARRAY;
+
+    /*! Byte array (analogous to C++ "string") */
+struct L_Bytea
+{
+    size_t           nalloc;    /*!< number of bytes allocated in data array  */
+    size_t           size;      /*!< number of bytes presently used           */
+    l_int32          refcount;  /*!< reference count (1 if no clones)         */
+    l_uint8         *data;      /*!< data array                               */
+};
+typedef struct L_Bytea L_BYTEA;
+
+
+/*------------------------------------------------------------------------*
+ *                              Array flags                               *
+ *------------------------------------------------------------------------*/
+    /*! Flags for interpolation in Numa */
+enum {
+    L_LINEAR_INTERP = 1,        /*!< linear     */
+    L_QUADRATIC_INTERP = 2      /*!< quadratic  */
+};
+
+    /*! Flags for added borders in Numa and Fpix */
+enum {
+    L_CONTINUED_BORDER = 1,    /*!< extended with same value                  */
+    L_SLOPE_BORDER = 2,        /*!< extended with constant normal derivative  */
+    L_MIRRORED_BORDER = 3      /*!< mirrored                                  */
+};
+
+    /*! Flags for data type converted from Numa */
+enum {
+    L_INTEGER_VALUE = 1,        /*!< convert to integer  */
+    L_FLOAT_VALUE = 2           /*!< convert to float    */
+};
+
+
+#endif  /* LEPTONICA_ARRAY_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/arrayaccess.h b/third_party/leptonica/uos/aarch64/include/leptonica/arrayaccess.h
new file mode 100644
index 00000000..87861264
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/arrayaccess.h
@@ -0,0 +1,264 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_ARRAY_ACCESS_H
+#define  LEPTONICA_ARRAY_ACCESS_H
+
+/*!
+ * \file arrayaccess.h
+ *
+ * <pre>
+ *  1, 2, 4, 8, 16 and 32 bit data access within an array of 32-bit words
+ *
+ *  This is used primarily to access 1, 2, 4, 8, 16 and 32 bit pixels
+ *  in a line of image data, represented as an array of 32-bit words.
+ *
+ *     pdata:  pointer to first 32-bit word in the array
+ *     n:      index of the pixel in the array
+ *
+ *  Function calls for these accessors are defined in arrayaccess.c.
+ *
+ *  However, for efficiency we use the inline macros for all accesses.
+ *  Even though the 2 and 4 bit set* accessors are more complicated,
+ *  they are about 10% faster than the function calls.
+ *
+ *  The 32 bit access is just a cast and ptr arithmetic.  We include
+ *  it so that the input ptr can be void*.
+ *
+ *  At the end of this file is code for invoking the function calls
+ *  instead of inlining.
+ *
+ *  The macro SET_DATA_BIT_VAL(pdata, n, val) is a bit slower than
+ *      if (val == 0)
+ *          CLEAR_DATA_BIT(pdata, n);
+ *      else
+ *          SET_DATA_BIT(pdata, n);
+ *
+ *  Some compilers complain when the SET macros are surrounded by
+ *  parentheses, because parens require an evaluation and it is not
+ *  defined for SET macros.  If SET_DATA_QBIT were defined as a
+ *  compound macro, in analogy to l_setDataQbit(), it requires
+ *  surrounding bracces:
+ *     #define  SET_DATA_QBIT(pdata, n, val) \
+ *        {l_uint32 *_TEMP_WORD_PTR_; \
+ *         _TEMP_WORD_PTR_ = (l_uint32 *)(pdata) + ((n) >> 3); \
+ *         *_TEMP_WORD_PTR_ &= ~(0xf0000000 >> (4 * ((n) & 7))); \
+ *         *_TEMP_WORD_PTR_ |= (((val) & 15) << (28 - 4 * ((n) & 7)));}
+ *  but if used in an if/else
+ *      if (x)
+ *         SET_DATA_QBIT(...);
+ *      else
+ *         ...
+ *  the compiler sees
+ *      if (x)
+ *         {......};
+ *      else
+ *         ...
+ *  The semicolon comes after the brace and will not compile.
+ *  This can be fixed in the call by either omitting the semicolon
+ *  or requiring another set of braces around SET_DATA_QBIT(), but
+ *  both these options break compatibility with current code, and
+ *  require special attention by anyone using the macros.
+ *
+ *  There are (at least) two ways to fix this in the macro definitions,
+ *  suggested by Dave Bryan.
+ *  (1) Surround the braces in the macro above with
+ *         do {....} while(0)
+ *      Then the semicolon just terminates the expression.
+ *  (2) Reduce the blocks to a single expression; e.g,
+ *         *((l_uint32 *)(pdata) + ((n) >> 3)) = \
+ *           *((l_uint32 *)(pdata) + ((n) >> 3)) \
+ *           & ~(0xf0000000 >> (4 * ((n) & 7))) \
+ *           | (((val) & 15) << (28 - 4 * ((n) & 7)))
+ *      This appears to cause redundant computation, but the compiler
+ *      should evaluate the common subexpression only once.
+ *  All these methods have the same performance, giving about 300M
+ *  SET_DATA_QBIT operations per second on a fast 64 bit system.
+ *  Using the function calls instead of the macros results in about 250M
+ *  SET_DATA_QBIT operations per second, a performance hit of nearly 20%.
+ * </pre>
+ */
+
+#define  USE_INLINE_ACCESSORS    1
+
+#if USE_INLINE_ACCESSORS
+
+    /*=============================================================*/
+    /*                Faster: use in line accessors                */
+    /*=============================================================*/
+
+    /*--------------------------------------------------*
+     *                     1 bit access                 *
+     *--------------------------------------------------*/
+/*! 1 bit access - get */
+#define  GET_DATA_BIT(pdata, n) \
+    ((*((l_uint32 *)(pdata) + ((n) >> 5)) >> (31 - ((n) & 31))) & 1)
+
+/*! 1 bit access - set */
+#define  SET_DATA_BIT(pdata, n) \
+    *((l_uint32 *)(pdata) + ((n) >> 5)) |= (0x80000000 >> ((n) & 31))
+
+/*! 1 bit access - clear */
+#define  CLEAR_DATA_BIT(pdata, n) \
+    *((l_uint32 *)(pdata) + ((n) >> 5)) &= ~(0x80000000 >> ((n) & 31))
+
+/*! 1 bit access - set value (0 or 1) */
+#define  SET_DATA_BIT_VAL(pdata, n, val) \
+     *((l_uint32 *)(pdata) + ((n) >> 5)) = \
+        ((*((l_uint32 *)(pdata) + ((n) >> 5)) \
+        & (~(0x80000000 >> ((n) & 31)))) \
+        | ((val) << (31 - ((n) & 31))))
+
+    /*--------------------------------------------------*
+     *                     2 bit access                 *
+     *--------------------------------------------------*/
+/*! 2 bit access - get */
+#define  GET_DATA_DIBIT(pdata, n) \
+    ((*((l_uint32 *)(pdata) + ((n) >> 4)) >> (2 * (15 - ((n) & 15)))) & 3)
+
+/*! 2 bit access - set value (0 ... 3) */
+#define  SET_DATA_DIBIT(pdata, n, val) \
+     *((l_uint32 *)(pdata) + ((n) >> 4)) = \
+        ((*((l_uint32 *)(pdata) + ((n) >> 4)) \
+        & (~(0xc0000000 >> (2 * ((n) & 15))))) \
+        | (((val) & 3) << (30 - 2 * ((n) & 15))))
+
+/*! 2 bit access - clear */
+#define  CLEAR_DATA_DIBIT(pdata, n) \
+    *((l_uint32 *)(pdata) + ((n) >> 4)) &= ~(0xc0000000 >> (2 * ((n) & 15)))
+
+
+    /*--------------------------------------------------*
+     *                     4 bit access                 *
+     *--------------------------------------------------*/
+/*! 4 bit access - get */
+#define  GET_DATA_QBIT(pdata, n) \
+     ((*((l_uint32 *)(pdata) + ((n) >> 3)) >> (4 * (7 - ((n) & 7)))) & 0xf)
+
+/*! 4 bit access - set value (0 ... 15) */
+#define  SET_DATA_QBIT(pdata, n, val) \
+     *((l_uint32 *)(pdata) + ((n) >> 3)) = \
+        ((*((l_uint32 *)(pdata) + ((n) >> 3)) \
+        & (~(0xf0000000 >> (4 * ((n) & 7))))) \
+        | (((val) & 15) << (28 - 4 * ((n) & 7))))
+
+/*! 4 bit access - clear */
+#define  CLEAR_DATA_QBIT(pdata, n) \
+    *((l_uint32 *)(pdata) + ((n) >> 3)) &= ~(0xf0000000 >> (4 * ((n) & 7)))
+
+
+    /*--------------------------------------------------*
+     *                     8 bit access                 *
+     *--------------------------------------------------*/
+#ifdef  L_BIG_ENDIAN
+/*! 8 bit access - get */
+#define  GET_DATA_BYTE(pdata, n) \
+             (*((l_uint8 *)(pdata) + (n)))
+#else  /* L_LITTLE_ENDIAN */
+/*! 8 bit access - get */
+#define  GET_DATA_BYTE(pdata, n) \
+             (*(l_uint8 *)((l_uintptr_t)((l_uint8 *)(pdata) + (n)) ^ 3))
+#endif  /* L_BIG_ENDIAN */
+
+#ifdef  L_BIG_ENDIAN
+/*! 8 bit access - set value (0 ... 255) */
+#define  SET_DATA_BYTE(pdata, n, val) \
+             *((l_uint8 *)(pdata) + (n)) = (val)
+#else  /* L_LITTLE_ENDIAN */
+/*! 8 bit access - set value (0 ... 255) */
+#define  SET_DATA_BYTE(pdata, n, val) \
+             *(l_uint8 *)((l_uintptr_t)((l_uint8 *)(pdata) + (n)) ^ 3) = (val)
+#endif  /* L_BIG_ENDIAN */
+
+
+    /*--------------------------------------------------*
+     *                    16 bit access                 *
+     *--------------------------------------------------*/
+#ifdef  L_BIG_ENDIAN
+/*! 16 bit access - get */
+#define  GET_DATA_TWO_BYTES(pdata, n) \
+             (*((l_uint16 *)(pdata) + (n)))
+#else  /* L_LITTLE_ENDIAN */
+/*! 16 bit access - get */
+#define  GET_DATA_TWO_BYTES(pdata, n) \
+             (*(l_uint16 *)((l_uintptr_t)((l_uint16 *)(pdata) + (n)) ^ 2))
+#endif  /* L_BIG_ENDIAN */
+
+#ifdef  L_BIG_ENDIAN
+/*! 16 bit access - set value (0 ... 65535) */
+#define  SET_DATA_TWO_BYTES(pdata, n, val) \
+             *((l_uint16 *)(pdata) + (n)) = (val)
+#else  /* L_LITTLE_ENDIAN */
+/*! 16 bit access - set value (0 ... 65535) */
+#define  SET_DATA_TWO_BYTES(pdata, n, val) \
+             *(l_uint16 *)((l_uintptr_t)((l_uint16 *)(pdata) + (n)) ^ 2) = (val)
+#endif  /* L_BIG_ENDIAN */
+
+
+    /*--------------------------------------------------*
+     *                    32 bit access                 *
+     *--------------------------------------------------*/
+/*! 32 bit access - get */
+#define  GET_DATA_FOUR_BYTES(pdata, n) \
+             (*((l_uint32 *)(pdata) + (n)))
+
+/*! 32 bit access - set (0 ... 4294967295) */
+#define  SET_DATA_FOUR_BYTES(pdata, n, val) \
+             *((l_uint32 *)(pdata) + (n)) = (val)
+
+
+#else
+
+    /*=============================================================*/
+    /*         Slower: use function calls for all accessors        */
+    /*=============================================================*/
+
+#define  GET_DATA_BIT(pdata, n)               l_getDataBit(pdata, n)
+#define  SET_DATA_BIT(pdata, n)               l_setDataBit(pdata, n)
+#define  CLEAR_DATA_BIT(pdata, n)             l_clearDataBit(pdata, n)
+#define  SET_DATA_BIT_VAL(pdata, n, val)      l_setDataBitVal(pdata, n, val)
+
+#define  GET_DATA_DIBIT(pdata, n)             l_getDataDibit(pdata, n)
+#define  SET_DATA_DIBIT(pdata, n, val)        l_setDataDibit(pdata, n, val)
+#define  CLEAR_DATA_DIBIT(pdata, n)           l_clearDataDibit(pdata, n)
+
+#define  GET_DATA_QBIT(pdata, n)              l_getDataQbit(pdata, n)
+#define  SET_DATA_QBIT(pdata, n, val)         l_setDataQbit(pdata, n, val)
+#define  CLEAR_DATA_QBIT(pdata, n)            l_clearDataQbit(pdata, n)
+
+#define  GET_DATA_BYTE(pdata, n)              l_getDataByte(pdata, n)
+#define  SET_DATA_BYTE(pdata, n, val)         l_setDataByte(pdata, n, val)
+
+#define  GET_DATA_TWO_BYTES(pdata, n)         l_getDataTwoBytes(pdata, n)
+#define  SET_DATA_TWO_BYTES(pdata, n, val)    l_setDataTwoBytes(pdata, n, val)
+
+#define  GET_DATA_FOUR_BYTES(pdata, n)         l_getDataFourBytes(pdata, n)
+#define  SET_DATA_FOUR_BYTES(pdata, n, val)    l_setDataFourBytes(pdata, n, val)
+
+#endif  /* USE_INLINE_ACCESSORS */
+
+
+#endif /* LEPTONICA_ARRAY_ACCESS_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/bbuffer.h b/third_party/leptonica/uos/aarch64/include/leptonica/bbuffer.h
new file mode 100644
index 00000000..945cbb0f
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/bbuffer.h
@@ -0,0 +1,60 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_BBUFFER_H
+#define  LEPTONICA_BBUFFER_H
+
+/*!
+ * \file bbuffer.h
+ *
+ * <pre>
+ *      Expandable byte buffer for reading data in from memory and
+ *      writing data out to other memory.
+ *
+ *      This implements a queue of bytes, so data read in is put
+ *      on the "back" of the queue (i.e., the end of the byte array)
+ *      and data written out is taken from the "front" of the queue
+ *      (i.e., from an index marker "nwritten" that is initially set at
+ *      the beginning of the array.)  As usual with expandable
+ *      arrays, we keep the size of the allocated array and the
+ *      number of bytes that have been read into the array.
+ *
+ *      For implementation details, see bbuffer.c.
+ * </pre>
+ */
+
+/*! Expandable byte buffer for memory read/write operations */
+struct L_ByteBuffer
+{
+    l_int32      nalloc;       /*!< size of allocated byte array            */
+    l_int32      n;            /*!< number of bytes read into to the array  */
+    l_int32      nwritten;     /*!< number of bytes written from the array  */
+    l_uint8     *array;        /*!< byte array                              */
+};
+typedef struct L_ByteBuffer L_BBUFFER;
+
+
+#endif  /* LEPTONICA_BBUFFER_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/bilateral.h b/third_party/leptonica/uos/aarch64/include/leptonica/bilateral.h
new file mode 100644
index 00000000..e5b5bbdd
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/bilateral.h
@@ -0,0 +1,136 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_BILATERAL_H
+#define  LEPTONICA_BILATERAL_H
+
+/*!
+ * \file bilateral.h
+ *
+ * <pre>
+ *  Contains the following struct
+ *      struct L_Bilateral
+ *
+ *
+ *  For a tutorial introduction to bilateral filters, which apply a
+ *  gaussian blur to smooth parts of the image while preserving edges, see
+ *    http://people.csail.mit.edu/sparis/bf_course/slides/03_definition_bf.pdf
+ *
+ *  We give an implementation of a bilateral filtering algorithm given in:
+ *    "Real-Time O(1) Bilateral Filtering," by Yang, Tan and Ahuja, CVPR 2009
+ *  which is at:
+ *    http://vision.ai.uiuc.edu/~qyang6/publications/cvpr-09-qingxiong-yang.pdf
+ *  This is based on an earlier algorithm by Sylvain Paris and Frédo Durand:
+ *    http://people.csail.mit.edu/sparis/publi/2006/eccv/
+ *               Paris_06_Fast_Approximation.pdf
+ *
+ *  The kernel of the filter is a product of a spatial gaussian and a
+ *  monotonically decreasing function of the difference in intensity
+ *  between the source pixel and the neighboring pixel.  The intensity
+ *  part of the filter gives higher influence for pixels with intensities
+ *  that are near to the source pixel, and the spatial part of the
+ *  filter gives higher weight to pixels that are near the source pixel.
+ *  This combination smooths in relatively uniform regions, while
+ *  maintaining edges.
+ *
+ *  The advantage of the appoach of Yang et al is that it is separable,
+ *  so the computation time is linear in the gaussian filter size.
+ *  Furthermore, it is possible to do much of the computation as a reduced
+ *  scale, which gives a good approximation to the full resolution version
+ *  but greatly speeds it up.
+ *
+ *  The bilateral filtered value at x is:
+ *
+ *            sum[y in N(x)]: spatial(|y - x|) * range(|I(x) - I(y)|) * I(y)
+ *    I'(x) = --------------------------------------------------------------
+ *            sum[y in N(x)]: spatial(|y - x|) * range(|I(x) - I(y)|)
+ *
+ *  where I() is the input image, I'() is the filtered image, N(x) is the
+ *  set of pixels around x in the filter support, and spatial() and range()
+ *  are gaussian functions:
+ *          spatial(x) = exp(-x^2 / (2 * s_s^2))
+ *          range(x) = exp(-x^2 / (2 * s_r^2))
+ *  and s_s and s_r and the standard deviations of the two gaussians.
+ *
+ *  Yang et al use a separable approximation to this, by defining a set
+ *  of related but separable functions J(k,x), that we call Principal
+ *  Bilateral Components (PBC):
+ *
+ *             sum[y in N(x)]: spatial(|y - x|) * range(|k - I(y)|) * I(y)
+ *    J(k,x) = -----------------------------------------------------------
+ *             sum[y in N(x)]: spatial(|y - x|) * range(|k - I(y)|)
+ *
+ *  which are computed quickly for a set of n values k[p], p = 0 ... n-1.
+ *  Then each output pixel is found using a linear interpolation:
+ *
+ *    I'(x) = (1 - q) * J(k[p],x) + q * J(k[p+1],x)
+ *
+ *  where J(k[p],x) and J(k[p+1],x) are PBC for which
+ *    k[p] <= I(x) and k[p+1] >= I(x), and
+ *    q = (I(x) - k[p]) / (k[p+1] - k[p]).
+ *
+ *  We can also subsample I(x), create subsampled versions of J(k,x),
+ *  which are then interpolated between for I'(x).
+ *
+ *  We generate 'pixsc', by optionally downscaling the input image
+ *  (using area mapping by the factor 'reduction'), and then adding
+ *  a mirrored border to avoid boundary cases.  This is then used
+ *  to compute 'ncomps' PBCs.
+ *
+ *  The 'spatial_stdev' is also downscaled by 'reduction'.  The size
+ *  of the 'spatial' array is 4 * (reduced 'spatial_stdev') + 1.
+ *  The size of the 'range' array is 256.
+ * </pre>
+ */
+
+
+/*------------------------------------------------------------------------*
+ *                          Bilateral filter                              *
+ *------------------------------------------------------------------------*/
+
+/*! Bilateral filter */
+struct L_Bilateral
+{
+    struct Pix     *pixs;           /*!< clone of source pix                 */
+    struct Pix     *pixsc;          /*!< downscaled pix with mirrored border */
+    l_int32         reduction;      /*!< 1, 2 or 4x for intermediates        */
+    l_float32       spatial_stdev;  /*!< stdev of spatial gaussian           */
+    l_float32       range_stdev;    /*!< stdev of range gaussian             */
+    l_float32      *spatial;        /*!< 1D gaussian spatial kernel          */
+    l_float32      *range;          /*!< one-sided gaussian range kernel     */
+    l_int32         minval;         /*!< min value in 8 bpp pix              */
+    l_int32         maxval;         /*!< max value in 8 bpp pix              */
+    l_int32         ncomps;         /*!< number of intermediate results      */
+    l_int32        *nc;             /*!< set of k values (size ncomps)       */
+    l_int32        *kindex;         /*!< mapping from intensity to lower k   */
+    l_float32      *kfract;         /*!< mapping from intensity to fract k   */
+    struct Pixa    *pixac;          /*!< intermediate result images (PBC)    */
+    l_uint32     ***lineset;        /*!< lineptrs for pixac                  */
+};
+typedef struct L_Bilateral  L_BILATERAL;
+
+
+#endif  /* LEPTONICA_BILATERAL_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/bmf.h b/third_party/leptonica/uos/aarch64/include/leptonica/bmf.h
new file mode 100644
index 00000000..0fdd300f
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/bmf.h
@@ -0,0 +1,63 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_BMF_H
+#define  LEPTONICA_BMF_H
+
+/*!
+ * \file bmf.h
+ *
+ *     Simple data structure to hold bitmap fonts and related data
+ */
+
+    /*! Constants for deciding when text block is divided into paragraphs */
+enum {
+    SPLIT_ON_LEADING_WHITE = 1,    /*!< tab or space at beginning of line   */
+    SPLIT_ON_BLANK_LINE    = 2,    /*!< newline with optional white space   */
+    SPLIT_ON_BOTH          = 3     /*!< leading white space or newline      */
+};
+
+
+/*! Data structure to hold bitmap fonts and related data */
+struct L_Bmf
+{
+    struct Pixa  *pixa;        /*!< pixa of bitmaps for 93 characters        */
+    l_int32       size;        /*!< font size (in points at 300 ppi)         */
+    char         *directory;   /*!< directory containing font bitmaps        */
+    l_int32       baseline1;   /*!< baseline offset for ascii 33 - 57        */
+    l_int32       baseline2;   /*!< baseline offset for ascii 58 - 91        */
+    l_int32       baseline3;   /*!< baseline offset for ascii 93 - 126       */
+    l_int32       lineheight;  /*!< max height of line of chars              */
+    l_int32       kernwidth;   /*!< pixel dist between char bitmaps          */
+    l_int32       spacewidth;  /*!< pixel dist between word bitmaps          */
+    l_int32       vertlinesep; /*!< extra vertical space between text lines  */
+    l_int32      *fonttab;     /*!< table mapping ascii --> font index       */
+    l_int32      *baselinetab; /*!< table mapping ascii --> baseline offset  */
+    l_int32      *widthtab;    /*!< table mapping ascii --> char width       */
+};
+typedef struct L_Bmf L_BMF;
+
+#endif  /* LEPTONICA_BMF_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/bmfdata.h b/third_party/leptonica/uos/aarch64/include/leptonica/bmfdata.h
new file mode 100644
index 00000000..30e2b5ad
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/bmfdata.h
@@ -0,0 +1,636 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+/*!
+ * \file bmfdata.h
+ *
+ * <pre>
+ *  This file contains data for constructing the bitmap fonts.
+ *
+ *  The fontdata string holds all 9 sets of bitmap fonts in a base64
+ *  encoding of a pixacomp representation of the tiff compressed images.
+ *  It was generated by prog/genfonts and pasted in.  This allows
+ *  the use of the bitmap fonts for image labelling without accessing
+ *  stored versions of either the tiff images for each set, or the pixa
+ *  of the 95 printable character images that was derived from the tiff image.
+ *
+ *  In use, to get the bmf for a specific font size, from the encoded
+ *  string in this file, call
+ *      bmfCreate(NULL, fontsize);
+ * </pre>
+ */
+
+#ifndef  LEPTONICA_BMFDATA_H
+#define  LEPTONICA_BMFDATA_H
+
+#define  NUM_FONTS  9
+static const char  *inputfonts[] = {"chars-4.tif", "chars-6.tif",
+                                    "chars-8.tif", "chars-10.tif",
+                                    "chars-12.tif", "chars-14.tif",
+                                    "chars-16.tif", "chars-18.tif",
+                                    "chars-20.tif"};
+static const char  *outputfonts[] = {"chars-4.pa", "chars-6.pa",
+                                     "chars-8.pa", "chars-10.pa",
+                                     "chars-12.pa", "chars-14.pa",
+                                     "chars-16.pa", "chars-18.pa",
+                                     "chars-20.pa"};
+static const l_int32  baselines[NUM_FONTS][3] = {{11, 12, 12}, {18, 18, 18},
+                                                 {24, 24, 24}, {30, 30, 30},
+                                                 {36, 36, 36}, {42, 42, 42},
+                                                 {48, 48, 48}, {54, 54, 54},
+                                                 {60, 60, 60}};
+
+static const char  fontdata_4[] =
+    "SUkqACYFAAAmoHICP///////////////////////kFcchgc45Bgc45AgcgxBY5DY5DY5Agcg"
+    "jkM45A8GocgxBA8M45BfCGgchhzOQxZBiNe/CDQRT6RQ+k4QV6BHcgvBBjCC+KoSjQI7wjj/"
+    "16I+EUPTpV0rI4LilVtAjjyPuR58jg3CRd6dJkcDMCj+v//qlVsMgQPVY6vugih9Lr/8RCF+"
+    "OqUUK6C/fHFV9RStf8MulG10fKcN6X+lXOBg+GexX71wxSPCf4/+kE0uR5zE0rtfCFg3oIp0"
+    "R+GF5DSmQaMS/oG1xen0X2wyh8WXwoI46VPt/kNYcf9J4h/pUHB///2H+t+lkCByDj/r9ZBX"
+    "H1BAtUr7u/IEOQanrS0eByO16tpVaSWtaEVsNiG66WrBgg05wM4bCYNWDCWIiDCER6HGhERE"
+    "RER3ZHBfXjaSQ7iOP/////////////////////////////////////////////////////+Q"
+    "JgK95DIDRZAjCDccgRMhn4g5yC9CD0IL+QxhuIfCCYQTC4IJhBiyLBB7J4QX4gvQgxxBehBi"
+    "yGDkPhdkEw1kPZY5cEHck5BIJOQc9aI+wjE7DL7RdsMu2GXoZehGDYaDCDQaDSCDQdIOGEEX"
+    "bDLzCLthl5ojzkeL0NMJhNNbVoJ6kclXuggyOGfugnw3vugv/0u+9IN7pBvdJ//brT3VtdLy"
+    "B4NxyGsOPRnv9R7xx3/9L+EU/3/f4jj/t+3TdDvkFZyC7hYdKkCCKHQI76SW/pD/6XCKdAin"
+    "29L9L6/9eEUOrD0kv8IIMNKkq/j/zD5h+P4r//99LfBKcDR9utK62NLxEIIhnmGGlpek3Lz/"
+    "jj5cv/ul7f+EvimH///0l6CENpfrHt/y9l7kr/4RT/f7f+PwRTkG7/tpav26XtrxoVI5/vSx"
+    "xsP/7ful7fdd1tv/7FRoj//DLgQZgQCFhlYlfv1kx9//28mPx/7ruu3/t9K3pEh/IKzkF3DL"
+    "g2BENDtBr9Jh4S12H/+3+17GwwltpbZBx0u0unr0v9IMjhrBYYpO0KZmDikMJsYTCDCeE2Gh"
+    "p6DTdiEE2KCdo8GcNj3pJsJofjiIiIiIiIiI4iIiIiIhhCIiIiIiIr1SMwyQbOkEiGQCvd4i"
+    "I//////////////////////////////////////////////////////+QVo7IEDkGwchpOQV"
+    "nIa0ENKCGhyC7kHchocgZschnHIMPtKk7oIP7ulv6f9Yj5DIDaH/3gjjr///+rI4aiIEXngg"
+    "RZBfCBEWQXsofKggu5DD5Y+Qw5UHghiCoIEYQw5VkCMIO5TkF7shhzOQxZ4IJZxy3IO5nIJZ"
+    "4IP//1iiPOGd0R+iPQgR3TQIIXZ3/S7BBnezui87MOiPbKHRHqftNNXvTTUjy/9JkcFjTpOk"
+    "9NsKmFTu+Etppw06VtMjhhO0OLCd3S+rSdIUvyDD+Iha8fQ//+K//3/+D/vbQRT7d9LsjhgI"
+    "7nH8Ivf/lw0bS/4RT////7f//pfq+lhr6/v/Yf/t//3/+D/sO2NNhpfiP66Xat8L/2//3S0r"
+    "XIMD/rvUEd9Isf/4Mp5wCDgYBlOzgO0fB3aem2mmnYTtipwCAZQ6DnAXDgynapwk20h/+IiI"
+    "iIy9ERxEREREZHDLiIiIiIjjj6kNWdP//qP/pMjhq8bSXwojsGkEwmliIiP/////////////"
+    "/////////////////////////wAQAQ4AAAEDAAEAAACSAwAAAQEDAAEAAAA2AgAAAgEDAAEA"
+    "AAABAAAAAwEDAAEAAAAEAAAABgEDAAEAAAABAAAAEQEEAAEAAAAIAAAAEgEDAAEAAAABAAAA"
+    "FQEDAAEAAAABAAAAFgEDAAEAAAA2AgAAFwEEAAEAAAAeBQAAGgEFAAEAAADUBQAAGwEFAAEA"
+    "AADcBQAAHAEDAAEAAAABAAAAKAEDAAEAAAACAAAAAAAAAAAAwBIAAAQAAADAEgAABAA=";
+
+static const char  fontdata_6[] =
+    "SUkqAMoGAAAmoHVf///////////////////////////////IZAUfsgeBdyGdyDjkMgI+QPKC"
+    "GIO5AhzOgyGiCMcgYtUrIKHohowhschs4hnwgXcgRQhsgguQQXwhov6/QYQI7qgRUUk2QIfV"
+    "F5hQmmugqCMTCBHj/9F8j9JuknWm7rSbCBFPLtou2sjhlBSOKkE3Qf3+kv9fpcMQaXY9PTwR"
+    "T6WvpX/0v19aVbeQ0D6X7+v/X//QIQfj6xSS4QLS3xx69IVtL/EQy8CvbSqhq4I7//pJeVnT"
+    "Dr/+Niloufj9fpJLxalYrDtdr2DGk/etf6CDrkduzQkw21/w2prRfYZcNbj1+kQMQuL03hF5"
+    "sQRT+CEMMj7pAjuk/5DVDINfr+k9b06Stj+GXgW6pN9/kNsdL/XQg/+nSx/0v20vxSv0v/S3"
+    "/yDA/19sV/6WkQ0D5DY/6+lkDyf/SX9h65BRBDTdJ/StLILuk2lWkl399U2kw0Thpa0r7S0U"
+    "A7S20rSVtJL/iGrFMSPJv+qYoEaA+KBA4pikmKCWIiDVCINaQ0KiIiIiIoFhoRfSodbS1xbp"
+    "Id0hx8f///////////////////////////////////////////////////IHMFnMgTA0hyGQ"
+    "G45DLcg0jkQfyGQDNxBv5DLcg3QQ2EEHDIEaEHDIaDkMTJzIeZBJkEmTwh5kNmEPhB7ITCGi"
+    "ZDOghsmQ0IIbJhHUEMzPAh8jYOeIuRsEZFHCZEHBDhdoww1DLm0bOGXGwZccGXHCMDgwQMED"
+    "BAwQMEi4ZwQdAg2GEEbYYZc2EbYYZcwwjB5dmDgwQMIMJoNbQNqHuRxF6I7YQIN+6BBrDf+E"
+    "E//pf3oEG9tAg3vC9//126bQWlXh0gyODd+l7fXwv/0u1gio0m90m916x9uu60nXXyB4G7kN"
+    "tx6JwU9oEU/4944qP/pcEU8EU+37f7f4j/q6q2tpDXhYaShBBDer1XfJD5IdL/0vtf9L9L//"
+    "ergin9JukvIHk5BiAggw+kn1fSr///9L3r2/fS30of9r1exWqXp4QQYaWl9XH/a2vH+l9/t/"
+    "6X58mgN//r07dJe04QRDYGGGgvpVeXb/jj5gT8X7r7f+CX6CDD/bp6bXY/xEIIQw16Xq8N/y"
+    "5ZcvT/Lp/de3/j+2QMd/r/p0l6CDdf0h73//ZF7/w37r99/fuD/vVq9SP3S9hpd+lLj/6444"
+    "a/9v7r39L0tt/7Xq9b0vDDIbAwQQu2ElKHq/fr3f/2/dfb39/b/V6jjSb1Io/hhiEFbEECFK"
+    "r/euRR+//28ivxXt913XZBcf/jaevr8geTkCHDDCCIF3bEk9XpN6X7f/7f7+xtpbaW+l2l9K"
+    "3pfpqGGEErBhJfCTBk4wl+wf/7f9fsMJba7cMJbDSa9JvSX2sPCwxCQYQaFBikIQQwQMMYIG"
+    "CBggeCBsNCgg3CBhBuGKBA2KBA24hAgbFdOlYIGh+NCIiIiIiIiI4iIiIhxEGCERERERER9L"
+    "GHfVBF0Tgtg0dSBoDTYk+h40PiP/////////////////////////////////////////////"
+    "//////5A887IHkOQbLIE8EFaCGvBBmsgosgaDcg3HIbHwaIbIvVVIZTkGHVUtv9IOHRHBU+D"
+    "g5DJBx//QRTr69fr/+3X+I+v/pa//v/9N0Q2XnshsshsjIaMyGjMhlOQIHycZAhyDUOQy+IZ"
+    "xzWQUWUOQYc7kGMyGdyTkH41kH4scnZB4JwQxhrIYp/64hF56DCLzBF4aLzQNF8+DyuCguuF"
+    "Kw/ApXIvMFTCI7FhU0XmgYUL/ap0tow3/6TdN2XCTpB0rVJqJHmHD6BYbNhoDEjzSbDDLhJo"
+    "NnHSdQ4cMJoMJQ0DpBphVC//x9v/ScMEkwqf9Lpp6dJum18cQwX3V9XXWv/pN9OkKX/9f6X1"
+    "1/TpdX+6umrDdRSS2yBGFv4iQZu/9D//4r//f/58CP3XI/p7pL9F9peEYv/zAF8NL/hFP///"
+    "/t/utrrutN6SQYr0F//7Ff+3////g3/11dJ+l+I/+ld7ey4KP+3//fpX5DOOD/3sb8j+6X/9"
+    "en1+v/b//dLr//Vuo0rY0ib//aphKGYdtAinbLfROC//Yf/8NKGEmwvaUOwvtK3SX/7DPcUG"
+    "NjhsUEHhBwwg8JuEGEGEHDCDhhiopiCKcIOKeJHTd8JNuh/+IiIiIsubERxEREREZcNKIiIi"
+    "IiNDj+En/X/IbQdf/+Cj/9Npd6SXq3WLDSrwSEdigkEGCDrEREf/////////////////////"
+    "///////4AIAIAA4AAAEDAAEAAABBBAAAAQEDAAEAAAA6AgAAAgEDAAEAAAABAAAAAwEDAAEA"
+    "AAAEAAAABgEDAAEAAAABAAAAEQEEAAEAAAAIAAAAEgEDAAEAAAABAAAAFQEDAAEAAAABAAAA"
+    "FgEDAAEAAAA6AgAAFwEEAAEAAADBBgAAGgEFAAEAAAB4BwAAGwEFAAEAAACABwAAHAEDAAEA"
+    "AAABAAAAKAEDAAEAAAACAAAAAAAAAAAAwBIAAAQAAADAEgAABAA=";
+
+static const char  fontdata_8[] =
+    "SUkqALIIAAAmoHcGf/////////////////////////////////kMgMsfUgeDaOQLjkHHIZAN"
+    "T5A8K5AiDQQ0OW7kMqCEHIZthNJkcMwuGQG8g34gYcgo8go4hmwQIDIGIIL1EGOIKO1/wRmG"
+    "cvBqEX3S3dBGJhUwmlQSpGINF2/9cIxkfa9U+k2Q2OlpNgqaNzWwgWk2k33Veluk2q6STadJ"
+    "U2jHlzcJtZcGlS4RJOt9f9f9L62GMw+vC0np5HXS/0n/6Vf9dapwxpdj7rr6Wl/f//v9dJLa"
+    "kG76X/XXpf//v/j62kl4I2i4ZVd8caX8UrS/xEgvV7aVMUP19f615+S7/6BmGXBh70tK21ev"
+    "60lxefkmGla/8WxVZM9Y31/RDYOEl5uappMV/1sGKhNfYX/1EOuEHiR57DbXfUMOieIxwZgN"
+    "vjpfrI7a9XQdJF9sSOv+QL+qLzSt//9IW6x6tUg21+Q2qpHnS3Tf5BtTkNSi/06710rYpeDM"
+    "MuBi6pNq3+QZX6/S0J8DHdUn8f+v3S/Fb9L/63r8hnH9f26/rS0sgXj9fXpV+vuP9X9Igofy"
+    "DD1el6WQPCR/pL+w7XIZUEGx660nS3V0vSrv/qm0m2UBr61T7S0dAd13XSTdBL+r0l6YYX+t"
+    "JtK1hhK7CTDCSthJLpeIpIMUGJHaf9rYohsQsQiBhDEIMQtiECCxESCjKESKPdDQqIiIiIig"
+    "sGhF1Wh16pfbSSrFtKh3odkcHWI/////////////////////////////////////////////"
+    "////5A7AyfkDqG265DJBRxDKmQanIZWpDKDIOnIaBhB05BQGQwgkcgiCCIIIglxBEEG/kGPI"
+    "J5DzIN6EG+pDKoQ2akDFCGBBBDkdCCUI5kE8iuRfIPxCwCZBHIYGMFhMI2w8M42COFBnCDIN"
+    "7JWQz2SsEcKQzwDBENEENkENkQRDRANwQNgwQRthhnDYRthgzZhhGG5cjZQYIGXDOCBhNYYW"
+    "k2rMBNcu2ECBhptBtAgdoGHQPQdFwTv+l6T4QIGG0Gwi4UOg2gg0777dNXg2gg9Qq+m0g37p"
+    "eG/8Jf/pd96Cb7Sb9f//1pvbS0vV0rT9L3/0v/0vWCKjV91fdJ//dK/0n1Xx6eXX0vvHGv/0"
+    "uXTkde9Jv0m//6+/T20rSevIZCggrxpErPFpX+O36j/6C/X2//7/Ecf95dUnSdIUvCsNLCCC"
+    "I6vvpL+RR8ij//pe3++lfpev+2l1ffdJeQPCOQ0OEEw9Un6+q3/0v/S/S9v/S/q//tfYp1S9"
+    "NMIIMNKkq1uwS////0vb/b9+t9KZg0fdL3Wm0v/CCDBpdfvF/wwsMLx/pfpff+Evz+ygMr9+"
+    "ldPdJe00EEQbpww0tV0rmDf8cfNhfxD9/2/8/foEw//f/Y0vEQQQgw6+l3wb/mB5gfoP8wn9"
+    "pe/+P4bBv90vfvS9Ag2l10lff++//7fv+3/3+Qau/vtK0kXTaX6bq9ePe9L/shZ/+39pfff/"
+    "th/3S9/+vhhL/SkcJ//HHBr/2/f9v0vS23/vdL0m9LwwwgmRwb20R1SW/f/d//b+0vff2/b/"
+    "3r70m9LwwyDdOEENsHpHH3+9LIUfv/9vIUff9vuvryGcf9dY2KX1IUfwYMQgnFik0r1b0v2/"
+    "/2++K+9tLbXbuu+Oum9L8geEchogMMEEQzXbFBb9N6Wvf/7f7+xvX1t6+k0+k/X6ahhhAk2G"
+    "kt6TZDj4S/b//b0v92GEttLb0tgwvTS3pL/QbQWGDBL7CQYMFTCVhbDBrffbaYW2r3YYSthh"
+    "K7gwguKr0m9Jfaw8JoMQgQYIMIQgxCQhAhkHQGIRBhBI5BEZBhAYaGCB4IGQSmGIRBugMQiG"
+    "hDDiiCg4YT+EoZDOhD8aERERERERERxERERDiIMIRERERERH1xb+qQfpJBF2UAZhn9EDUFTK"
+    "B7xoQYSB7Qjj/////////////////////////////////////////////////kDxf7IHgQOQ"
+    "VbIH1kCSyCrZA8cEMyCBqHcgYcgYfIHh7IF4TChVCkM1yGhwoVe+loHBwi8gdNMOHS2/tL6H"
+    "/yGSCkP/6BFOvrtNeE//Sv9cR+v/p1////W6////p1zZkNnZAv2bCDcchsHyLGQ2DmwnZAuO"
+    "bCBfiBcc3EGochoHNBAjsg3HIQcguOSHLHLHIJMm5LiC7kMocmOWOWOQXciv/62JDZPQZBv5"
+    "DYhF5z4Zy8yr0yDGEGM1yDGJoMgxyYRiDIEYmQboIYxNF2HPg8lkaH6hMjhDjQ//p0Xb0XmE"
+    "YmEYcJNhNJj0Xn+gtUXqL3ReaQbVF5ou1qk4TVQwgYQYWDCDoIMIMKXH/9bSbig6CDoIOlyO"
+    "jAbFVthw+gsG4qwbbSsGKDYQQcMSPJRSBwd6dPbSfpL/6f6tdXqx1YVf6XTCevem168GYDR9"
+    "fSutLS/9WxeuqrV/9/wl/7pXXXQ/91p7pXjSW5DRhFH+sLuor///6C//33X4P91bl1pjdJKt"
+    "hovBr4iQPKn/x/X/F////7NAz/v0tavW9aYaXhG3/+YDM2l/zCf///+3+9e3TvSTeglDFegv"
+    "//bS/9v//+vw3/q3Wt6pf0PpfV3+xX/t//3635DNv9utb0R9t1X4/+vreyOGZ/2//+uvyGx3"
+    "/16elvVIjH//Xp3/X/2//3X3//WKjjSeNb/+10rtWyMfX/2//7q0rX6u1d2kraSr/3RdYaTD"
+    "LdsIv2GvJAZ/+w//2GErCCbCLr2EoNiR161b0l/9g0HI6FBimKg2KCB2CBwwQPBA2wQMEDBA"
+    "4MEDhhiFFBisETgwITTCg2vCTDaQ//ERERERZg2IjiIiIiIzAa8REREREccfwgg/9f6X+v+Q"
+    "ZK///0x/+m0sF0q9W0sW6XyGSGkOkI7YSr4rYhAkEGCDrFhCI4//////////////////////"
+    "///////////8AEAEDgAAAQMAAQAAAP8EAAABAQMAAQAAAFUCAAACAQMAAQAAAAEAAAADAQMA"
+    "AQAAAAQAAAAGAQMAAQAAAAEAAAARAQQAAQAAAAgAAAASAQMAAQAAAAEAAAAVAQMAAQAAAAEA"
+    "AAAWAQMAAQAAAFUCAAAXAQQAAQAAAKoIAAAaAQUAAQAAAGAJAAAbAQUAAQAAAGgJAAAcAQMA"
+    "AQAAAAEAAAAoAQMAAQAAAAIAAAAAAAAAAADAEgAABAAAAMASAAAEAA==";
+
+static const char  fontdata_10[] =
+    "SUkqAGwKAAAmoFQGz///////////////////////////5DIBocgZg0PkDwy3JvkFdyB4Qchl"
+    "DkGB7yB5OnZBQ5J8hmckQ0rBNUyDSOkQWnIZXkMqZBrghs0INDkM/kdkDfsLqqhGYKDEHp0k"
+    "G0HkFEwoQaaqCcWQzzCMMPXfwg0m0gi89KyCgekkYmCpppYQKgjc0m//0Yy8/16VtP0EGwqN"
+    "to22ugtBBtJv2vpLdJtJJ1SbTpJKwjnoOgg2swGmFLgiStb3+lXf/69v1bYLpuuR1pLVX//X"
+    "r/S60mwYorKXH/dfS69J/2vX/9UvYyGU699PXXpa/3//4+l1S2EcXqvXHX1qr/8RIMCP17SS"
+    "pwggnqvj1XpClpf1+3SWlS2l/v6S+btbr/IKbknv62KH2Fel/VJeEGlTDS/1W9tJKiGL8f/1"
+    "Sri83qxVr/sQ2K1JBpXel/RAuOFXm29On//YMUk/dhf+qEOuEHQtWG2v+w9GEwZuXj1/Uuw1"
+    "6bnzaSDtF1/wbSI+Sdx/X9IQ6WPCb0YbYr38MvvCMTVv8gqlyGsR/pX/ukkHaS8gqiMOkk2l"
+    "f/pfpOlvXSTYa/9/b2/yBO9f9cTQMzuu4/RBSgnHpJe2l+KX6Wv6ST1j//7f/2lpdf/pfkM8"
+    "el+xVr0/pEMofIZV16+v//9tda/pdZAh1vS+sge4/0kv3fyGbBBVeutK126dLtJLuq+ttJuH"
+    "+FTV/SOR19dJPSWqr6SX2gyx+ur7S0LbS20n/oJf8PS20mwjeNtf0noINYMJBBwwk2kk2kEF"
+    "texFJBiExCYXXTWwwkCBrEIEDimGEErDCQILERBgsQwgafFRSDEIRDCEMIMUIYhQWQyAaHER"
+    "bSrERER/0q90tfukqxbWh3odtLbSxH//////////////////////////////////////////"
+    "////yBTDMpkFsFhyB4YOQyAboILYFByB4hyB4vkMgCIK4iOQsFWQ07IZxyBEeQyQ1PINNLIZ"
+    "icEDIMeWcgoBkFy4IGQIIIoZByCDhkHIInkMEEDFCGyhBJkFzggyDcYCDINxgQMgwoIIGRDk"
+    "EIIp0O0MhjrIPyZDCj0GCD4aOEHEN3CPDDaDTQaapp6bwjxByc2EeIOTmGEcbw1TTT7ppJ1U"
+    "4B46aPGGmQabJeECIJZDPZEmDNhIM2JQIHBggwQMEDBAwSBAwQNo4DdkCHQIGyCiw2gQNkFF"
+    "htBB5cZwWGCIMOGCBhBglBggdBA6U2Ca5c2EbDvwbSayCZh8Ogg+/6C329JvbSb3SD777/q3"
+    "TdQq9INoIN/oL2/9J//S7W9IN9pBvv//tJ720m0tL/SbT3X2/9L/9L+XXSvdK90v//1p0nrS"
+    "+npuXX0vb66X/9Ll0176b/b///eu++1/yGQxyBwOOk63+++ONV/6X8uu3r+l/iOP2t6uk9Cl"
+    "4WHqR8e7r6SH/Uf/S+19v3/f/96dGF7q0kvCw0qCBAn6vpff//pe9e39/3pX/a9XTaTql5A9"
+    "wQ2QEmHWgmKer6X8iPkR1/9L7X30vSS///991bpL1TCCDBpKv76Vb/9f+l719+/W+lD/erXW"
+    "K0v7wggw0qS9K4YIL////QX3+3/pfpMoBq/a9XTTapfWCCIFy4MNL694g/44+P9fdL2/8Jfn"
+    "mzoGZ96dX+6S92ggsMNLS9bmyD///i/v9v/P/6BMP+/r22KS8RCBCGGl+teDf84POD82DH79"
+    "1//5HDL+Gw3+6/a/XhBBhpddK+/9PT//N7/r2/8b9yGpT/q1ek2l9BBuvS6vu9f+yDuRj/+3"
+    "9r7ff/2D/2r16MLpfT9+kh7/X/xf/t+9e39fW2/71q2qV6XsML+qV//jjkCM/9h/a+36+u2/"
+    "/9dU3peGDCCbdtalw/2/93/9v3r/f2/b/20r71frwwyGWXBBVbaL8JK/+l9//t/a+33X1//7"
+    "G+levhh4QIXYqKNFX7fWQR9v/9vIO+9e3uu2ltkND/rHUaTekQw/hhiEE2IpK+l6///7elx+"
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+    "4S/Yf/7f/+2ltpfdbaX6Tfr90GwgtsJd4JNhcEtLb//b/r3YaWw0tu0uDBJp9fSX/B4WGeNB"
+    "NNCEGZkghCCGEGGZlCDCDCDwg2GhhN0GE3YYJBBsMEEEGw4YJBBsV00kw0Gh+1QeE0xCCDBB"
+    "hBMQkCChBsQggwQYQeEG2FBA8IGCBuGIQQYYoINuIQINr8JWCBr4qIiDCERBhCIgygDw1IiI"
+    "tCLhghBghEGEIMJrxER+hEaERDiIiPpaB/0g/SIGwCcdJFzOgGgr6jEGvGgamgH2EL4j////"
+    "//////////////////////////////////////////+QP6EDob+QPBoHIElkDw9kCyyBJBA8"
+    "F7INVkDYDEZDLjyGVCZBXmCqQZPIaUENEAoKlt5A8sTSfV00/S2/6BwdF3D+Dg//pr6Q/+QW"
+    "wbj//MKvrtNeC/9JN1/iP//+vr//+k3////9r///+k9ZeECzPy+IZY5BuP5AuOXhHhDKHL4g"
+    "tOXxBowscg3HLjIGByHHIG9CMci+Qzv/+3BEMyeEGQMUCGQLzyBimgwUgRmRewVNBgqDIZXg"
+    "qYQsFTIEUyGzAUgucuippgmRLIOcuhDFX/pYhPTChGHCNzROBBuKAXpgoLoLBU0wVMIwwwVN"
+    "Fzgqow2icEgoYIGCDBYMK0EGEDClxP/7YRtvl20YOgg6CDYVBNaMXfQXovNGK6MUIJt0XbCT"
+    "WqCDhX336B6apJL/0ug3bpB0nSsGbDZZsNghBsHB9BYNhiE2GIQbSbBsNoJwYkergzYN4P1p"
+    "9pXXX/q3vTaWrr6V1/pf9at02vTX/t7fTaT+l/9Y/rr0370/6XTT0/fr44/6WnuukKpdkFFk"
+    "K/pN+9DWv//6C//S/rq/7+XVJum9Kt0DXxEF9V///9f/991+ZgY+6Tf8VrQSww0YwaXkDwOE"
+    "f/H3X/H////sH/+k2k1dJN6SQYrwjj//Ng1dL/m0////9h/t1/tvpN6SQa9Av//ev/b////w"
+    "3/rpN6ekrelQ+v//sMJf+3///X4N/3t+lt6X4+l6V33hiF/7f/9+t+D/ulr6L70q////+XBp"
+    "/7f//XX5BQO/9/TdJNvpER//16d1fS/9v/919//1emONK71r//0rtb1/9h//3Wla/XrHWrxS"
+    "S//YRdbpsijtourZFfT/9v/9+0E2vrZ3hourW0k26X/7aWgwgmGFYaVsMJJzWBDtPTYaaYTt"
+    "O20oaTYRhUGnUUxV76V0kF/9ioOXQpigxUNiggbYQOGEDwg3CBggwg4MIHDYaCimIWEHDCCa"
+    "ah9OrDeP/2ENBoNMIQwhbERxkcMgYqbQTCxDEJpoX8RocfxEREUYE4jiOIiIj/2En/r/IG5d"
+    "J/1/////H69JtLIH9NJf3S6uq9ISh0CxdL8gt46iO2kl6FbYSCQIMIHWGISCTCbWIiI/////"
+    "/////////////////////////wAQAQ4AAAEDAAEAAACoBQAAAQEDAAEAAABCAgAAAgEDAAEA"
+    "AAABAAAAAwEDAAEAAAAEAAAABgEDAAEAAAABAAAAEQEEAAEAAAAIAAAAEgEDAAEAAAABAAAA"
+    "FQEDAAEAAAABAAAAFgEDAAEAAABCAgAAFwEEAAEAAABkCgAAGgEFAAEAAAAaCwAAGwEFAAEA"
+    "AAAiCwAAHAEDAAEAAAABAAAAKAEDAAEAAAACAAAAAAAAAAAAwBIAAAQAAADAEgAABAA=";
+
+static const char  fontdata_12[] =
+    "SUkqAFAMAAAmoFsNP/////////////////////////////////kMgNpyBoLGQPBocjfIEkED"
+    "wU3ILjrkDxwmnkGmKIa+ENfFshpj0Qy5kNIcg0UIHhxyCjCLhDSHIa9kG8yGZPCqpAvBK4YR"
+    "oCU0km4PTChBkMqgJxhMhnCBBhB6u/QIoBubbpPSb0gjbYKmEH4S0bNo43/rhBpNqjHpKyBh"
+    "/SDYVNNLCBUkG0EG//0Yi7fdJOqt3S02CzjaPNroLSdJv6qtLDS2qT1TaaVLo5UEDwQb5gGx"
+    "TAYXdf/ql9PS+t3rVwurp0XXS6SdW+v9f9fpJwxRcUrj7/9JUv/7v1X/Wkl2DGv9aTpel16X"
+    "v66/6/pbkMyK79/S+tf2///H6tJLbBHv6/4/66Vpf4iQYUfqulXhAioHSrx6S9If//9uq0kk"
+    "tL/f0v9K0v/v62KHbq9f60vNNdhpX+QJ4JXe6pV7X1+qSXhB0kw0tf6Ye2l0RNFxb1/oEF8W"
+    "pf0xC/14gwxCSTXv6/yBiiXON4Qattr/sGOmtcL/0oNeEDappMO1+thpIxyIRuOl+kjDdcJ4"
+    "lzemwwjC/4byL6TbNgp//6ENpY3CDpBG5sV/qQaCEgjc0rfyDKTIbWiX6T+9WqCDbVbkGRRL"
+    "t6Tav/1/pWl9PShsNL14dJK6b/1X9LXLHf1Scf//bVv8gtRVfpPEX71vXRAnslG6SX2l+K39"
+    "a/qlrjX/+3/1paX/pb1+Qbj+l+2la/+lkM26/9L1T/+26/Sf1IZg9f6X//0l+xT1/6VrkNDp"
+    "N0vSWQPOOvX+2/yGlBBkdetLr/WrVLTX+km0m2H+Cp1a6RB3b+0n1eku/9L+0DLHtLpNXrQu"
+    "0t6tKrUJfXD0knpgwQt/+rSTW0EnYSbpW0kF/weEtsJMTcF/Tqw0iBepYYSIZurDCTDCSsMJ"
+    "BLa1DEQkgxCYQa0taoMV8QriExVMQiCjsREGFiGEGm8aHaEQYQsIMIQwoWQyA2nER6pIRERH"
+    "3Vf26pf0kq9v1xbSSHdKFtpDt11WI///////////////////////////////////////////"
+    "/kC0GD5AzAxBA8DCCGQCoQQMw0yCB4EEEDwYoQyA1YNxDuQ8Hwg2YQ24vIZILHkNQ+QaS4IG"
+    "QzqyGWkILkwQMhs1ITUg+pB9SD6kJQhjUhmHIGDkMUIZyAgyBgGEGQMBAgZDPQhaEEqIQggm"
+    "hCoQ1QyBFqQX5MgwGQl1hBgg7hhHyBw/CPkD///vCPEHDCPEHDRxhx/r+CeE6i5wDwxTCPkG"
+    "pDSmT9GwSQ0TIzkMuZF8homR+EcB2Q2eQI8g38g38g3+cBQfDUaPgoZDZYQIGGQMTJTCBAwy"
+    "BiZKaBA+QI4hnsGfAgEDBWQe00CbWvRttGwR7CDYQQdhEE9hA0wgaQQdpppppBNPTtIINsIN"
+    "oINsINpPLhDgmmnaaVyGzkgepgCPwg2EEGHe2k+GHvuk//pdrek3uk3uk//6/t02lSX7aTa+"
+    "l4f/Sf/0v70m9tJvbX/967SbV60vS0nvdL2/9Kv/S9b0n9J//3+9td0m0tL90m5dfX2/9L/9"
+    "Ll0+XT9vfb3Sr/3S/ur9J8erX9L7xxX/9L+XXb1/X/f6/+6dJ0q/IZAdyBY+pCQ9X+O/0P/o"
+    "L7X36v6v8Rx+/RhVbW0hS8LD6BBny1fpL/X/0vevb1f1f/90r/un0vCw0lRyddXr9//+l9r9"
+    "/f96V/3ule6TaSXkDzggogJMHVIJjdX6/yFfIV//0vf9vS9JL//dL3Suuv00wggw1Vf7wku/"
+    "+l/6X2l7f//pQ//691bVL1sEEGGlpVpeEFX///6Xv+/vpb6TB/36t7FaSX+EEDDqkv3iv//h"
+    "hf0vtL2/9L8IKdQ0/uk39U3SXvhBEMomGGgv+rg/44+P9ff+/8JfnOynBp/f1q+qXtMIIFhh"
+    "paXq84Qf//8X9pe3/nP/BBv961b7Yr8RCCww0vSXvITv58efH5wNH79/2/9hfuG/9ev3S8II"
+    "QwaX9Je3/CDwg//zif2l7/4/tkNQP9vbXpPS8IINpdfvvf///7fv+339/kNqf+l7a20l8IN1"
+    "fpJX36/9kGCP/Df6Xt//7Yf+/r0Y//v+lx7/X/3/7f3/fpeltv+9at0lel8MEt/ST9/33chs"
+    "//2/evb39/b/9f1pvS8MMIJvbRHWpgMfv8cbD/+39r79/f7/t02l6vpeGGQaSYQT3YXX/9L/"
+    "/9v3r2/r62//X29K9Lww8IIXYrCR4Sv2/9v/9h5Bgftfb3XbXbINx/1/rpX8gw/hg8IKwwmI"
+    "S76V6WQXf//29divvuvrbuu9uo46vS/DDEIJsWkkr9vS12//2//29tLbrtV+o3dJvS/IHnBA"
+    "vYMMEEQ04bFLfpvS62//2/39jettLfrdWqpX0v0woYYQSbaS3pNkM4+l+3/+3/Xu2l2lt69p"
+    "fpXr+tBhhArbCVPhJhhcJft//t67+7DS20tu62GvT030v+G0FsMJLagkygWmRaYLsNdf21BV"
+    "q12GEsMMJd2EtgwSafX0gv9B4WGfMIEUAgNCgxSEIhlkyC+oZoOQY0IXQhjXIZ9GDQyGEOCI"
+    "YYKAIsGCRAvoydogX0YcGEiGXoxX0CTBkC+iH7Sh4TQYhJqgQYSBLhiCu/t1vTtwxCsMQrbY"
+    "hWwunSbv8aERDCERBghEQZIA8GWIiNCLhghBghEGCEGF+IiP0IjQiJA8C+CIiK64QP6pB+kk"
+    "gf+i4zUBoDN0iBKb0INfCigak4HhI0QMw1IvYQjj////////////////////////////////"
+    "////////////kD9BA6hrjkM2CGYP5DIDUggeBiyB9hBYsgeGVBDVggbQ2ZiVHkGiCB4rkDfy"
+    "B4bJqQN5kNdyCiCBEyDVNBbeQPHyqqqqaf/e6aRBYsgeBfEXcgUYnZDRZDUtLb/90hf//9NL"
+    "1/8gtgsP/8xtfS2mvBf/X/8R//6ptfX+v/Xr///+m1////V////9K0iGb/kMz8g0fkD4fyB4"
+    "ZxyG3MhmjkDwUp5DMHIYHIHgTj//uwQTycyDTMhl0wnhPLmQy4BcheyBeC5kfgpcwQYKXMg1"
+    "0M5DZBPAg8FBSBBBM5DCCK5EoQx5C4QcgmcguI/9KxT0wQYQ0bmiQGgwyGBFMhsmQInpZDPN"
+    "NBkNk00cYZAiaDCGQXmFRttEgHkWbuune7//7hGDeEGEbOEbOEEGwqQfT10C9NNU0EG1QYRs"
+    "uqQcL4YIGCBgkyFsG0CDBAwUwFX/pXQfRt0EGggg6V6TWjDZBRZDZmlkFFow2jDkFGIw2k5D"
+    "RiMG0EGiGy1p1Bwd6fp0n6S/+n24hBtXSDpNgzYF84CgQg3voLiEGIQbYhBtJtiEDaTxLuuQ"
+    "0W76991paX/rdPCdLp/0un/S6rp+6dLhP//WtNq36//TY+366X71/pdNPWr02vjtft72rpdV"
+    "SXZAxhBx/X66f9v/f8Jf+9X/1Y/62i602lqKXug0/pv9RS1///QX/6/pfD/br3WKbpJBbaDS"
+    "8RIHgYPv/DC//+v//7/ygDH/dbprVIJYbRuBhLwRmv/x9pf8X//v/7B/6V17vShh4QVBj8I8"
+    "f/4L6/5tP////Yf7fq2vfTeqQa9Av/5wNS2l/7f///+G/9J66vVK9KgYXpf/+w0v/b///r8G"
+    "/2+9+26Sf8fX6u/2K/9v/+/W/Iav/6WlaSL71S/H69f7wwv/b//66/D///pb0v//16vouGp/"
+    "2//3X/yGU7+rdOrGrd9EKP/+vttr6/+3//daTf/36xVJNukkv/66Xe3pf+3///Wv16sfpXGl"
+    "//aLraTbYRhYZCPp/+3/+2laTYX1u0XWmnV9L/+wl3CbIjsMJbDCXIwG//Yf/7aVoKGEbXus"
+    "zthLfqm2kl/9iFMwXBhJhhJiFMwzjIMEWQYRBkMEZBghhkEIIYIMRMwwDg2GlDCTELIMaQwS"
+    "ioqZgY7glB6H/7XL4pimlYVtp3fbV3dp2xCimF6EJ2uq92v/2hoMIMINCGEIbERxDBCIiIhh"
+    "TeEGsQwmgwhd6EccfsREREIwE4jiOIiIjX+Egf//1f9f8gVq6/6////S1H0vSb8gfo0v90vu"
+    "v0m4WLrXkFsGsdRHtJL7S2GCCr4rDFEDwUYQyQ0yCCqGlhgqXaxERH//////////////////"
+    "/////////////////////4AIAIAOAAABAwABAAAAYwYAAAEBAwABAAAAeAIAAAIBAwABAAAA"
+    "AQAAAAMBAwABAAAABAAAAAYBAwABAAAAAQAAABEBBAABAAAACAAAABIBAwABAAAAAQAAABUB"
+    "AwABAAAAAQAAABYBAwABAAAAeAIAABcBBAABAAAASAwAABoBBQABAAAA/gwAABsBBQABAAAA"
+    "Bg0AABwBAwABAAAAAQAAACgBAwABAAAAAgAAAAAAAAAAAMASAAAEAAAAwBIAAAQA";
+
+static const char  fontdata_14[] =
+    "SUkqAKINAAAmoCAz/////////////////////////yGQBw/kMgGYcgw5DJBpvIHg1wR3kCuC"
+    "B4NFhbrIHiwnZAxZFjIafUQ2+BJJshrRkGnyGtBBqmQ05kNqyBcQQ1YINyZBRMhpfhf1CMwz"
+    "S5hqg9W4aggwoIGCDCWC4QYIPXrwR1BQm6Wkm6pGzYKmn2EFQRsgwjhB/9UjeXg0m1RifVkM"
+    "t1VBNhUGE1pAtBBtBN//hBYdboJOkk2nVJNgj3R4s8b8JUk6TftfpYfdafV09VbQXCDcEHWX"
+    "BWCmAIraTf/9eldL0ld1VcLp6bRddKkqff91Vf9fXbDeqtwum0v9L11v/+v+uqSwxR+rx/3S"
+    "9LS+vfqtf9da7DHr+/pel/79f1/9dKr5Boha9Lr/9L1/a/8fXSqsI/ev/HS9Kkrrv/IZ0n9V"
+    "aSXYIEU467ePX6j2v+I/tqulSulfX+qX0ldf/e9U6Q9wr1X6pfJ+u2l/kFqyO/tJYr2vr/qv"
+    "BA9JhpX/XeG0qqtq9f1SS9NIl3DS1/pg8MQlyJWuP/9JfF4QaTFN//EMaVd36/SIZrhNLnCe"
+    "EGob1/2U4bUJ/cLX/iDXQQb06Ydr0uw6RvZCaePX6V106EwdK2GF38NqQnJOzgE/1/SkcbS2"
+    "nhBtQjc2JfX6kGrSgjDDW3/r+hDfi3CekEG2v62XmoQTdN/kDgCIKtS/pOl+2qQba/IHCTD0"
+    "rat//X6Ta/XSuGEl/htaur/0v9et91SbH/+l1evIH0a/pOhJAaf0t/ogtWRY3Wm9v/GutLX/"
+    "S0sdfpfbS/X9L/0t/r9L9v/pv63r19L8gXH//tL9ddKiDVn9fX19JfbFPXXWkQan+npekv//"
+    "99df0tLIbHW+vXIHjj11S6bf8hrWQJHp/Sb/rVfS01/rddu/BUH2lpaW2k9JNpJa63pJX3D6"
+    "6TX9IoZddrf+gvrvS3psIMk7/9N1odpbpOkraQS/70km0mGEcxWvWrpJqwwknDCCbSStJL+o"
+    "PCW2EmKDXWtUwwkQy06xCINQyKYaWGGEECC2vDEQkgxBMINN/TSsV9bCYhJMUCBYiJBppiGC"
+    "DC0hxoMIRBghYIMIQwULIZAHDiIvpKIiIj91X7qtfdUvuklXtrS4t0o+lC20h263SxH/////"
+    "////////////////////////////////////yBlyPyBmCy5A8NUMhkrQgaA6CB4NKCB4ZhyG"
+    "QBxZCDkHcg8EUcg3cgr35BbB5kGw6kNRQQ1QZAgwQaBogwBkGgGQ0VkPWQxWQxWQxWQShBes"
+    "g0oINBBDCCDcMhmJyGWrIaichmKwQMhoEyD1kEDIPUQQiPjIMTIaOIL0IKMIEDc8B4WCBggd"
+    "sMIMMgYZkOCDDQYQaDCDShoNwg7QQMMGEDYYQeGE0GEGg0mGk1uutMIPBnthGYRAzwIGQaMO"
+    "nIKMPWEZhiQL8DBEMrgYIhldOBlngbcEDZDKgIzEYM8EYRmIyGbhCURwJwZ4C5gFAIGEGCwY"
+    "QNoEHSr7CMxA03ISYQIgxjkGJ5BiMgvCBB6apqkqtK9AgYbg2gQMPBsIINTAU8FT70/T0G1m"
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+    "7aT/+3X7aTpaX02k/ul7f+k//pf+k/aT+v1/+qT1daX/TaML6Xt/6X/6XMJowswnre63vX/7"
+    "ave2rpaXi6Tffpff///hL/9vSb9Jv1//6/0m168hkA3H0np/r3xxS//S9tL2/f9/xHH/tGF2"
+    "6ehXwpA/foh7bW/Ue/Uf/S//b0r9K//20vtK0rSS8LDpIEzZ19Vv9f+l9pf+/7//+9e6vpeF"
+    "hrhHmR/at6r/r/6Xv+3r9L9X+2lq3t1aSXkDyggYgJMHSSCjf+vvIO+Qd//0v0vb6/q9f/79"
+    "LSbSr00wggw10mtJ9Kt/+v/QXt/t/ev6V//pPtpevqmEEGGlr/eEl//X/0v0vb1fpX6Yf7aT"
+    "98baSX3ggQYaSSXpPhAv///9L2/2/9L8JSQCr/+vadJL/CCDDS6r7j//+P9L9L//S/CTNYa/"
+    "3S1dJq+vpoIIg0AQYaWv1yXDZ+OP/0/b/b/wl+ZDIgNP999+6S+00EFhh116vOCB///xf6Xt"
+    "/5Z/4Jh//pe3el4iEFhhpaql3g3//OAX/ft/t/8L9wb/bSferYpLwghBg0F9aT7f84D5wH//"
+    "Ob/S9v/H9shr1f/1arpeEEGGvX97f1///t+3///7kFU/7pWr6MJtV4QINpeqST7////7f6Xt"
+    "9/f2Df9//7r8IPX1xfd6/9kNGn/t+3+39fW2//ulaSTel9+36Xu//7//t/17e/v7b/tpe+k3"
+    "pfDBf1pf+scchld/7ftr7fr2u7//1ev14MMIJvdUpgGH96/b/+3//919d/71a9U3peGGEE7d"
+    "yOqSX79e//7ftpe3v/7f/avuqV6+GDINYEEEO2EnCW39/9//t//t91t1t/09aV6vpeGHhArY"
+    "qKLtL6fSyGd9//28hoftL2/X12yDd69bX/Sb0iGx/DDwQTYaYSW3rel/f/7f7/t7dbdf/f8b"
+    "1V9fhhiEE2IpL9N6/t//hv+K9vbXtdv/V6qNX0vyB5QQy7DDCCINsWtPq3pft//sPXf/tLet"
+    "vS26jd0r1/TBIGGEEm2l3pN6X7f/7f9extpbaW3a9r1Svpfrhgwgk20l9JhkNj4S12H/+3+/"
+    "u2lsNL+uwk19N6S/dBhhBbDCVN4JMMJYIL9h//t6XXuw0ttLbhhLYYS/Svpf8PBYYMIJO0KY"
+    "MFQhIUmwYVNNPTbQ03TTdhhBJsMJJtwwkmxVNOraaH9JB4TTFEFAZDGqCDEIIIg0AZBisMUQ"
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+    "1bEREfrCB/WEH60gf0qMMH6VIIGU4GoKfSIEsGKCDV9UQNA9IeNA1JAHnhD4j///////////"
+    "//////////////////////////////+QPkEDMFW+yGQBPBA8NSAmQZ4IHhqQQ2oIEoDFkGuC"
+    "GlHkDwN4ILMyB4NM1ILMyB4NMyGrNLYeQPF4g14kFC4UgqQQLwFCpbe9pEGbiB4NfIu5As5N"
+    "Mg34hr9X+qu6Qd1t3Xb+0vUf//9G1/S+vIGYZj//tr67TXhf/S6/xH1//bX///9L/X///bX/"
+    "//9Lr///9Jtf/////8l/kNTiHwg2f/+k3LhpGgZclMhqeQaJ5Bp/INU9BkGiCBeMgnZDLgIM"
+    "IMhmwgyDXMg1QSmQ1KE3IF4JYQUHyGbBBdyBGhJBDXchrcQfCC4ZGggwE//xCDwgwQMIYIPJ"
+    "OCD0wUF1yCj00wVMEDBUGEMFCgg8gY8h+8hjRSEQE1//9JsJ6YUKEcMMIYRsjqBFMhsOC6BY"
+    "KmmQ0HTRsgwUINSDB1RgcI6BiCgz4OCBnwSDBBtAgz4OCmARf/thGxvTCOFCODoINhJJrRg3"
+    "+gvRt0YN6MGwgg3phGxVqkGgvvvbh6dqkv/S6D6MDaCDoIHS9J9BByBjCDfNLIGJhtJyBfEE"
+    "HSbIKMRgVoIHIKMVJ1IaMIJnTrTaTpaX/7e8Qm0mknSbIN8VnAMCn/S6YpuKem4hB0uJdpcg"
+    "oz3+9tb//9Lq6DpaTr9XV/hBdV1avTaXQff+61S66pL/9t3r/6b1en/S6aenW/Xof/dW/bSd"
+    "dL8gpD+lj7aTrr//+l//T02vVj/1ownTaV0KSW2QzMv6b/xr///0F//39ff9r1r060luEDXx"
+    "ELuq///+l/+vv/B/vTa3TFeqWw0DS8hkBoI/+Gv1/xf/+/r7JAZn7+n2m6Sr0bMMJeQyAXmb"
+    "P/j7X/v////Z1Av90v19UmHhBJBj8I8P/8iAMXr/nE////9h/3tpN03dJN/QYXoL/+cBs2l/"
+    "7f///+G/3S/W3XfSSBr0vr/2GEv/b///r8H//W6+kr9ofS//9iF/7f///+Q16f39Poum3pfj"
+    "6X93+GC/9v/+61vwf90m10lb1S//9L+9mA1v+3///X7/39N6T3SX//07r6X/t//v+/kMt3/d"
+    "LX0rdVId//11u9vS/9v/+0tK//19jikm+q//16bbX1/9v/9/rX69YqnVtvS//tdL0XWyDj6/"
+    "+3//aVpNr39our/XFJf/6L+GgmGQo7aW2vf/t//t1DSsIwvpWW8NL6pJt0l/9sJcMJMMKwwl"
+    "sMLyXAv/2H/+2lDCCYaX2lFMVbTurdKl/7EKDiExTFScNAogRrDIMazQMHUGJAjVsg+pDGpt"
+    "JOCHUQ0DQGEopiFkCKoYSdqThlfBKD0P/60Y07WGFt/+wuv9iFCDXxCaa3pqnf/8MIWgYQME"
+    "DCEMEIcRHFghEREQwU5BBhYhhNBhDT4jQ4/iIiIhGw7xHEcRERH/0g/9f4Sf//yB+Bf+l/6X"
+    "/9f/+ra+PVfXWCf/q2uC6r9NoLpuq9RHHS/IGeOltpV9rtpJehWwwSIHg08EDCDrDEKECDIM"
+    "tVYYIfaxER/////////////////////////////+ACACAA4AAAEDAAEAAAATBwAAAQEDAAEA"
+    "AABKAgAAAgEDAAEAAAABAAAAAwEDAAEAAAAEAAAABgEDAAEAAAABAAAAEQEEAAEAAAAIAAAA"
+    "EgEDAAEAAAABAAAAFQEDAAEAAAABAAAAFgEDAAEAAABKAgAAFwEEAAEAAACZDQAAGgEFAAEA"
+    "AABQDgAAGwEFAAEAAABYDgAAHAEDAAEAAAABAAAAKAEDAAEAAAACAAAAAAAAAAAAwBIAAAQA"
+    "AADAEgAABAA=";
+
+static const char  fontdata_16[] =
+    "SUkqAHAPAAAmoCQP/////////////////////////////////IZJx0QyQzjkM45DJA3vIHhr"
+    "2RbyB9BA8Gy00/IHg8XZDMsiXkGzqIK/Akk2Q2nSINUyG25DVoQ1aEGSCGUoINjkFEyGPIZU"
+    "yGrPBVXqwQahNUm4PCBhQQYQMFwQcYIGED131IZoaNsOk6SbVII4bBQgwmlhAtHDDCOEH79Y"
+    "QNINqnrZBoHrQQbCpp+EFSCDYQQb/1wjkXbSekbfSbT9JsFTR82uEFpOk3/+gsOtqk6STadJ"
+    "LYR9Z4bhBv0FSTdX9fpYf6SeltP6cILhBtBOswCkpsNFdX666S+m1/p7pJbgtJ6bRddBVVNp"
+    "X++v69LpK2G164XT1/pa/v79a/69dWGKJ2krY+3ul6XS6V/69f9a0uGP/rX/Wkv//9f9fSps"
+    "Ol/vWl6Wv7/X//1pa6kGu9f/0vS69f+v8fW6S8Izf6/xr/1uu99yGga/qtaSbBH1HS28fS9I"
+    "atf8R/dVdJLwlf/6S+q9f/fdVpD9PpL9VXkvqmGl//uqxCW2r//18EDVbSv8gerIl3tpVW7C"
+    "vS/VKvQekw0tevb7SVrx//pBJcXRH9MNBf/yhQxCrIUZXf/0kvahA1Ypv/qIMMJQmv+l+pBp"
+    "cIOueG8J0w9f1ZLgyJNVuC/9JCDXhB9NWG2v1sNQjnIWvx0v6uug3EwTSu19cMNIh/SsGcF/"
+    "/6UuNpdaBB8I5hsMI2lv4N4QaTeP6X6iG1xbptJBBtiF/5DU1SCON07//9But61SDtfkFgal"
+    "29INrf5BZEyDInS/S1/bpINtJf4dJK1b/0v9JuvrVXBhf+303Tf//6Wu+9U2P/ukv3X6pdaT"
+    "oSGDZ9JXrogerIl79Orf5A8S6/0v/Wtev9Jb3S/FJ/S1/pXrH//2//v0t69fX/0v20v0tdKi"
+    "Gl36/X0Qyn/+20nr+tIhpj/v16XS/SX8f6X9L5BQ9dL0lr//7Vr7+k2l6V9euQPDx/pJdNv+"
+    "Q2o7rS62/VdUsJ//trbD/BSBPiWulf6T0k3SXfrpJdWw3rVPetIhiel3V/0gv+9LdWwgyKP/"
+    "qlfobaW2k6STapa9XpJXTDCH/XulrDSuwk3S6QS3pYelthJibabS10m0kGsMIJOwk2ltpBBd"
+    "LyjggkgxCaDX9PtpEMwGsUQ0xDEJsJJMNBBBbXgxFYYTCYT/tbFfC4TELDFEMueIiQa0JCGC"
+    "Bq6FIUgwhEGCEMIMIQwUFkMk3ERdaxEREf60vbVL/qkvbSX9+ku7SS8W0qHekttIdtLbS3ax"
+    "H//////////////////////////////////////8gMBZD1yBoDQ5A8GXQhkg31IGgFAZA8G0"
+    "MgeGsQQyQ2oIG45AkvyC2GvMgqoTIa6QhtBCGgbINQqQYFCDWoIbBBBBBDAghgQQwIIOgguI"
+    "INYZDTIIYIIGKgREA0EwDYRANBMBqgyGgoIYGEMVEHrIY0IYqyC+hAiZBvMhg5DL4gQLMzA8"
+    "PBAyGsn4MIHIqGZoED//9bwQcGCDgwgf/64J9pcLCYQOyG0kBGgeQboIQgg1AZBQYCMweQLz"
+    "IGJkMuZDLmQy5o+GWZgqOZgYZDNxHwoZBpORaI+FDINJyKdHhNENlCBjAZoBgEDNAzyGzNHA"
+    "zuv7CNBA1Z8I0CB2CIMHZ4GEzwLwgQO00001CadJtoIIGHBA2EEDDYIG0EDzYc+HtNNU1dEC"
+    "9EgdJmwUL5smEfBh24NhIO4N4fDoIP/6Xe+gg27aCDe2k01u+364eg3wkvQQbQQYfugnww9/"
+    "Sa/9L1vSb20m90n//p/tJ0v+nQTa7aTW3/pP/6Xfek3uk3tpfX7/dNq3Wl+2kG79L2/9L/9L"
+    "1vSb7Sb///tK1V6tJUvS0nRhd0vf/S//CXcwswnpPuk+6X///tpOlpfugm+/r2/9L/9LmFX3"
+    "6b+m/3/9unutJv68dbS/X28cV//S+69vW/W/X//XRhdv0tfIZAaQ5A8Ufp9/r/6//QXuv30/"
+    "q/4jj7/2raTdCl4WHpEH5tb6Ue/Uf/S+69vX+v/+6tf0nVLwsOlBM3dP9b/X/pe6+39/3//q"
+    "9PTdWkl4WDWkeb/vSX/X/0vuvb1fpX0r/br79XqvIHhYIZdhWHWEE6TaT//kF3yC7//pe6+/"
+    "XrX//rpatpWkvhNMIIMNUko/vS9v/r/0vuvv7670r/er3punVL7UEEGHXvpegq////S9/2//"
+    "/ph/3ut+k3SX9hAgw0tKvfCS//r/6X2l7er6SvpQ/9enVjtKvXCCDDSSS9bhggX///+l7/t/"
+    "6X4SZ1BW+3X/T6++EEQaBMMNL/p4h/668f6C+0vf/S/CTIgGz+ut01aSX00EFhg0tV+4P+OP"
+    "/0/f+/8JfmIYP96un23SS9poILDDS6rSeeCB///xf6Xt/5ZH8Ew/73XXvS8RCCwYaX6XeDf/"
+    "88GX+H7f7f+wX7hh/69XVsVXgghDDrX0vb/ngfPA//57f6+3/j+2Q2hH717+6+EEGGl0l77f"
+    "++//7ft17f/+2QV9f7W19PS8IEGHX6S3v9b7//t/r//9bkFNH709NqjabSXwg2v/T93///+3"
+    "7de33Xf2G/7/6S9L4Qer1SQvf1/7IN6v/b/X2//9sP+66V9N9fa79V+/X+9/+37de3v7+2//"
+    "Xvrevwwv6pX/+OOQzJ/+3+vt+l6W//e2ukk+l4YMIJ7fVGwz/vX7D/+37df9/f2/7pdXpN6X"
+    "hhhArfRdUqf36///b/X29//b/7/f768MMhqiYIJrbS0Et/f+//7ft17fpb1t/7paWqT6+GHh"
+    "BC22lpU/vpff/7f6+339r/6X33SV6RBRHhh4QVsUxCJ2t9XrkG77f/7eQUPt17e9b1tkC8V/"
+    "exv76VeDB4QThhMJa9W+v//9vX/77S7S2/73Sr0m9L8MMQgmxGlf70tdv/9v+K99v39vS3X9"
+    "ikr6/IHhYINEBhhBEFS7S70m9L9v/9v9/b3S20v/umKrV9fwmChhggSbaVP03hLrv/9v+vY7"
+    "S7S29L136b0v7UMMILYYSW9WGQLvpft//sPS3/bS20tu67S90r0l/oMMIJNtL8JMMJYS1ww/"
+    "/2//3YaW2lt2lthWqpX0v1w2gsMMElbwSYMElIOfW2Gt3fbarbXuGwgrYaCu7CVsGEv0r6C+"
+    "6QPC2DCSpoQgxoQkNWDCqq6txrppuwYSUMMElbgwknFe6tpof1h4TQYhEDGpBisIIMIIIg1C"
+    "hBgQGIRDQIIIIIYEZBuIDBhSC9TRDjCD1OxCIZohiEQzRDBxCINYwNNNUCTBkMsQvtUHhNBh"
+    "eiXBVClWGrwZCAX/7r/4YWGFuGFhhf1/44iIMEIiDOoZIaDUGQEQiIuIhwYISCmGIgwQhgvx"
+    "ER9IRHERIHgrwIiI11hGgGwCzroO+qCB+loP9JGCNQGwGXpECYGYPSCBkuBsBt9Q0qBr0ooS"
+    "GciHjQMJHQDx6IGobv8IRx///////////////////////////////////////yB49PIZIsED"
+    "wZIIHgxxA8rIHgqWQVrIEsM2yGnZDUvyGQoIM8yB4KnhSB/MgeDZMhtTCWw8geCTIamBIFIH"
+    "g2IUgzEEFeCGXAKC1t7rXrpp+v9WpA+4geCryMHIHvk0yBfiCp1b7ql6Q/+vf2vr///o4tel"
+    "015AzBmj/6tf9prwv/q/64j4X/0rS//r/vf9f//0rX///+m////9df///6b////1dL///+rg"
+    "iGpTIvkG2ZDS/IaX5DUpkpkNOCGXGQf8hmOR+QTyGnBKZDXoQ04I5kNqhJyGVBLiBc+QanIZ"
+    "4IZ4ISCOCOCDa5BUwgvxBeCJBFciuQz8Qxf/q4gg8EDBAwgeCB4IPCBgoLrkC/BBhBgoQMED"
+    "BQgYIGFBQoI1gokMzgWOMg9VkKGQwdY44//qwnphQhhHDDR1BQbJnnpkFCCGdGlkM6EGgyDc"
+    "hMI4QZBuhNDIEIVGx0ageQqAZoGAQMEoMJuCDBBhL/6unphHChGxwgg2FCCY9P9AvCp6aCDe"
+    "gwjg1qEg0F9pphbCB0mg1MBhf/Vo2K9GyYQQcIIHScKrWjZMgY8go/QWQUejhsI4bIGPRsmk"
+    "2QL+jZNAg5BR/ThSBHkMe9PbtpPX/+r0H0EG0g6TpXLx4MtPEJ3fS2IJiE7EJ0m3QINhIO6p"
+    "Pu/6039aX/pXvEJtLSDpNj8+GWn/S6aenVuKDpcS5pXIF+9tJu1dJ1pL/6em6etf9J6b/QXT"
+    "TdNpPTa9P//61aXWl/63/q6Wl/1/pdV19/XQ//dft039Vv9Nj03/7evv+l7vuk9Nr9j+6ujC"
+    "aTpaQqvZBp4gQ/q/6Qpa///hL///S6v/q/7SvSrcINP6t9////9Bf/97/3+2vTdN06SSWw0D"
+    "S8RIHgrU9f///0v/1//ZQDX/3XVj9IILDDQa+QyAatP15OJ+v+L//39fmoMz91dfTdbegpsg"
+    "0vIZAZlDd/8ff/3////sH+66tpPqkw8JJBivCPj//KgDF0v+eT////2/+nr3fSb0kga8IF//"
+    "PBt7S/9v//+vwb/bW1bq7SSfqg16X1/7df+3////hv/r9b9K/wwvS//9hhL/2////8g2Eft+"
+    "l0rdfq0P/93+GIX/t//39X5BUn/pN7ejG9Uvx9L0v/Bgv/b//61/D/39apNvSX//7v3y4bf/"
+    "b//f6/IZkP+6Wr0t2qX//1d74S/9v//X2//19+1Sf0iGH//XX1vS/9v/+60v//bWK6Stuv//"
+    "+m219f/b//f1tfrtetjpvVJf/sLpdq3r/7f/9pXTa/+sbWk2xSX/9owtoJttGFhkHfT/9v/9"
+    "urQTa9pWSHbRftbS+lX/thBcNJhkOOwwlsMJcqwyv+w//20rCUMI2v9pwwl9aTbS//xXDCCb"
+    "CsQrY1hra6sGtrrbaUNBMQtbSYpit/VvSBf/ak4ZzCFMbUkBsRDPU2QYrlAOawzyBFbkHrIP"
+    "WauUA5rCFAbGlEINZAhPDCCpqUBmp2gSg9D/9hdNNBrDC2//YXX+xCnkmF8U01vXTtf/hoaB"
+    "hAwQaEMEIOIjiyOGQCwCwwgYWIMEGgwh/EccfoREREI2CPEcRxEREa/wgg///hJ/6/0n/X/I"
+    "HiiX///pdfT+n/+tpePX9fhfX1bSyB49NKvptL7/1IHg1wEYA1CxdKvSEdtJLyBmDU/2l/YS"
+    "2wkl8eGGEEQPDXcJBBhBpYYhMQgQMgUVwsGaAeCsF7WIiI//////////////////////////"
+    "////////wAQAQA4AAAEDAAEAAADOBwAAAQEDAAEAAAB3AgAAAgEDAAEAAAABAAAAAwEDAAEA"
+    "AAAEAAAABgEDAAEAAAABAAAAEQEEAAEAAAAIAAAAEgEDAAEAAAABAAAAFQEDAAEAAAABAAAA"
+    "FgEDAAEAAAB3AgAAFwEEAAEAAABoDwAAGgEFAAEAAAAeEAAAGwEFAAEAAAAmEAAAHAEDAAEA"
+    "AAABAAAAKAEDAAEAAAACAAAAAAAAAAAAwBIAAAQAAADAEgAABAA=";
+
+static const char  fontdata_18[] =
+    "SUkqAEARAAAmoCq/////////////////////////////////+QyXe5DJDVchncgthMyB4NFk"
+    "TMgeJBA8FKE06yB9ad5DbxIgScCpNkFYdSGnQgrOQbKENqhA3ghmWQz2QVRyBxZDMoQbJ4XU"
+    "g0YQl4IHhBhUm4OggwoIGCBhYwQZBuJggYIHhf1CJwazjaSdJNpqEGFQaYWgSwmg9d6yGanQ"
+    "Qb10m+gjxMKEGEGlhAtHhhhHyf/4QaVpIw3rZBpelQQbCpp+EFSCDaCDe/XSOMwbSfSDpJN3"
+    "1TYKqMyraC0nQTfT/pYaW0gv06dKk4Iz8+K4Qb9BUk2k/+ugt9+npbTXVtBcINwnWYAnTNg3"
+    "77f1+v1aS+k3dVXC6em0YXSqkrSv99UvX/S8N6q3C6dJ/0tLff/r9/S6pJsN0RB6rH2/S9JL"
+    "XX/r0v//WwxRfqt6XvXpaX1fv9f+lqlThjrf+tfS//////6pbdf910vrS9X+tdf9LSWsKQ1L"
+    "pfr/9fuv/f/H+1rcIzH+v8aS9LS17/yGwU96S0klsEf2OvePpfj3X+I/2v0l4Svr/S/SStf3"
+    "/9JwkwqevXf9L+m6/rvdLihW6vpfpL8jmktpf5A8WyEu+6She16/rSXggekwwgr/XvbXr2E3"
+    "1/SSXgmpHPYaWv+3tpJNEGt/H1/0viHhBpMU3/SyGoYhaZCg/v/0gSS7oINWtf9ifDVCSC6T"
+    "/X+Qa9Pnx1Tph3/0yEAkpr3Ba/pQaXBBvTUMNtf9hpI4mD+PX9JpdBvRwnV2F/2HhBOQxhFj"
+    "9f1mBh/TxBB0gjiDYYRxL1wbSIP6Tdj/X9QgbSxdJtQgg2xX/kNVPhA6t/1/SF/unpINwvel"
+    "DMbSCOG1b/IM4vX6TaW9OqQOGvogzCmD6TaT/5BSEL+k6X7aSTbSX+G0km+/9f+r/r0nDBf+"
+    "/TpN/9V1paWRjv6VNj/+kt7deQPBe9f0nQj99XS8geWEJe/6t/61fpf+lv8Kv0qb7S/FX9LX"
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+    "XsFkDYDScREcf////////////////////////////////////4AIAIAADgAAAQMAAQAAAIEI"
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+    "AADAEgAABAAAAMASAAAEAA==";
+
+static const char  fontdata_20[] =
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+    "L9JfVvpL20kv+qSxbSUd1S26YW2kO2ltpb1tNYj/////////////////////////////////"
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+    "CCIG92q31D0v2//2/69vbS20tvr13dJ9L9MFDDCCCbaVPq3pft//t/v8baXpbeu3tV031+mE"
+    "gwwgVtpLek3hL9v/9v/920tuvtLtL6W9JfvDBhBK2Et9JhkM2NLXb//b12ve0thpbd1tha3S"
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+    "rtw2Ethpd2lsMJf7ekF/w8LYMIJO0ITIwXEJDTDBqmqemw409Ndgwgkwwwgk24MJJs1DTW0k"
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+    "P/////////////////////////////////+QPFrIGoF8IHYG3PIZIbdkMg4CZA8CIIZAb2QJ"
+    "7IE0NbMg255DIAw5A8PMhkLwpA8H8geBZMgpzCCww/CkDy0IHgVhqQPFDIHgcaEFXRLbyB4L"
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+    "///zyf6W7XkDUo/9LS/6/C//Ta+uGgwvBf+lev8R//+rX/+v/V/1///q1////V////9K0v//"
+    "/9v////S/////bX///9LnA2ycNKQkyDLMg2/kG2eQ26ZEoQ2oINT+Q0nIkyDEyDa5EoQVzkN"
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+    "ggYKCBhA1ChMEU4ZkFBSGwQRKiC4yyD1EGEENHkFxhEqIaBv/1cQg8JhBhDCDwg9Mg1UIGKa"
+    "4KmmQaKJhAwVBhDIGKKE8g0UIEU9V7X//6sJ6DChQjw2ERAFzxEGGygyBjQho00CyCgMJpkD"
+    "AaDCPjZAvog1IaNFR4WiMB5BNCBhBDP5BQjIEUtHAUEgGAX/6ujYr0wjwsI8LCCDYSQQfX9B"
+    "emE9UEG9MI8L1QQcL7TTSYaIGDpMINTYEL/6sJA+jg2gg4QQOk2FSawjxP9BejxtHieEeJpB"
+    "h6ODaBA16QcF96fp96SS/9XpvhB0EHQQdJvSfQINkM2ZDKnoLIZvoEHQTZDLmgQbSchlzQIN"
+    "hIOQy5qr5DRMhnn/e2ldVX/1e+kG0nSdLIZXqzMGgU7vpcUxCdinSbdIOk7o2eshl+7uk602"
+    "k/pf+r08QnWldW9XhP+lwmnhOtxCbS4hPv/ff9aWv/pX9Wk6T19XTf6XTTdN03TpdOv/06aT"
+    "aT+l/+33ul1rf//oL/9fbX6/9tf20rS6/9LF61169Xr/S6rr2666HH/rTp0nxSS2yGpxAu/7"
+    "ft/6v/v+l7vul7a/f77c2q33SX4Qafpf9Cl///4QX/+//V/2vXulqqW6DX6b/X///9L///S+"
+    "H/1q2k2k9JJbaBpeIgu///X/pf/97/sH+2rdfFWtILDDQa+QyQ31/XX//9P/9f/5qDU/1rdN"
+    "PpJbaPEQzXkMgCsR6/H3/8f/+/r7IgGn7/Tq1dJBh4QVBivBFB///S/7////2H/aVr16qw8J"
+    "JBrwjQT/8gYZt6/59P////Yf7703tvST6SQNegX/8zBT2l/7f//9fhv+6/Sbtav6DXhBfX/t"
+    "pf+3////hv/XSvTekn6UGF6X//tpf+3////g3+9N7/6V6tD//d/sMJf+3///35Bk0/tddJNt"
+    "V/H0v//Yhf+3//daX5AkR+/03o3vpL//0v28ML/2////8H/tK10km7Wv/S/d/wzCBf+3/+/1"
+    "+/771elvSX//1d/pD/7f//WrfkGuP+0tX1b9IgRH//r63hL/2//7Xr/f1+/SpttJf/9em730"
+    "v/b//f1v/7V6er0r9L//XSttb1/9v//rptfr+1jY0ntUq/+197X1/9v/+0rS1/9XqqVtiqX/"
+    "9bQVtowrZDYPr/7D//b7SYa9pW2jCxu6V6//thG/aTdhLbC9/+3/+6VoK1/yKPYS3rSbaS//"
+    "hhLhhJhkMOwwlw15AgaP+3//aVpMMEc/aVhOGEuulfS//iFoMIJhhWKthhJYd2urBra922lB"
+    "ggmK1tJimK/eraSBf/asqIpgwVqGwYJBA2GCDhhA8IG2EDBAwQODBBw2GlFMLCKcDDCVVBu1"
+    "hJh6H/7Cjm0ExQanQMoUQ2F7IEF50DBLhokNghyGC5DBcEDnQHIgEOgFwYIKE1kNgOUGE0wo"
+    "OtoKw9f/a6DQaDC2Cw//sF/+xCn0gwvimg1vXW0//hhDQMIMEDQgwhDYiOLLhkhlBYMEDCxD"
+    "BBoMEO+I44/iIkCThILGBHgTiQyQaOxHIHh+EREa/xFBEM58fH/sIJ/6/wk///pP+l/kDwIK"
+    "////X/3r+uvStf///8ev0nrC+v9pZA8WvSr0g2l//7aXtpfqJTgi4GwGeP16QjtpJeQNAanX"
+    "tL+0tsJJehWwwgklX2GEgkmg6wxCBIgZiCCB+DrDChfCyBtDOdkcDMMcMLEREf//////////"
+    "////////////////////4AIAIAAOAAABAwABAAAATAkAAAEBAwABAAAAcwIAAAIBAwABAAAA"
+    "AQAAAAMBAwABAAAABAAAAAYBAwABAAAAAQAAABEBBAABAAAACAAAABIBAwABAAAAAQAAABUB"
+    "AwABAAAAAQAAABYBAwABAAAAcwIAABcBBAABAAAABxMAABoBBQABAAAAvhMAABsBBQABAAAA"
+    "xhMAABwBAwABAAAAAQAAACgBAwABAAAAAgAAAAAAAAAAAMASAAAEAAAAwBIAAAQA";
+
+#endif  /* LEPTONICA_BMFDATA_H */
+
+
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/bmp.h b/third_party/leptonica/uos/aarch64/include/leptonica/bmp.h
new file mode 100644
index 00000000..c0ce8fbe
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/bmp.h
@@ -0,0 +1,95 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_BMP_H
+#define  LEPTONICA_BMP_H
+
+/*!
+ * \file bmp.h
+ *
+ * <pre>
+ * This file is here to describe the fields in the header of
+ * the BMP file.  These fields are not used directly in Leptonica.
+ * The only thing we use are the sizes of these two headers.
+ * Furthermore, because of potential namespace conflicts with
+ * the typedefs and defined sizes, we have changed the names
+ * to protect anyone who may also need to use the original definitions.
+ * Thanks to J. D. Bryan for pointing out the potential problems when
+ * developing on Win32 compatible systems.
+ * </pre>
+ */
+
+/*-------------------------------------------------------------*
+ *                       BMP file header                       *
+ *-------------------------------------------------------------*/
+
+/*! BMP file header */
+struct BMP_FileHeader
+{
+    l_int16        bfType;         /*!< file type; must be "BM"            */
+    l_int16        bfSize;         /*!< length of the file;
+                                       sizeof(BMP_FileHeader) +
+                                       sizeof(BMP_InfoHeader) +
+                                       size of color table +
+                                       size of DIB bits                    */
+    l_int16        bfFill1;        /*!< remainder of the bfSize field      */
+    l_int16        bfReserved1;    /*!< don't care (set to 0)              */
+    l_int16        bfReserved2;    /*!< don't care (set to 0)              */
+    l_int16        bfOffBits;      /*!< offset from beginning of file      */
+    l_int16        bfFill2;        /*!< remainder of the bfOffBits field   */
+};
+typedef struct BMP_FileHeader  BMP_FH;
+
+/*! Number of bytes in a BMP file header */
+#define BMP_FHBYTES  sizeof(BMP_FH)
+
+
+/*-------------------------------------------------------------*
+ *                       BMP info header                       *
+ *-------------------------------------------------------------*/
+
+/*! BMP info header */
+struct BMP_InfoHeader
+{
+    l_int32        biSize;          /*!< size of the BMP_InfoHeader struct   */
+    l_int32        biWidth;         /*!< bitmap width in pixels              */
+    l_int32        biHeight;        /*!< bitmap height in pixels             */
+    l_int16        biPlanes;        /*!< number of bitmap planes             */
+    l_int16        biBitCount;      /*!< number of bits per pixel            */
+    l_int32        biCompression;   /*!< compress format (0 == uncompressed) */
+    l_int32        biSizeImage;     /*!< size of image in bytes              */
+    l_int32        biXPelsPerMeter; /*!< pixels per meter in x direction     */
+    l_int32        biYPelsPerMeter; /*!< pixels per meter in y direction     */
+    l_int32        biClrUsed;       /*!< number of colors used               */
+    l_int32        biClrImportant;  /*!< number of important colors used     */
+};
+typedef struct BMP_InfoHeader  BMP_IH;
+
+/*! Number of bytes in a BMP info header */
+#define BMP_IHBYTES  sizeof(BMP_IH)
+
+
+#endif  /* LEPTONICA_BMP_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/ccbord.h b/third_party/leptonica/uos/aarch64/include/leptonica/ccbord.h
new file mode 100644
index 00000000..dcd37817
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/ccbord.h
@@ -0,0 +1,119 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_CCBORD_H
+#define  LEPTONICA_CCBORD_H
+
+/*!
+ * \file ccbord.h
+ *
+ * <pre>
+ *           CCBord:   represents a single connected component
+ *           CCBorda:  an array of CCBord
+ * </pre>
+ */
+
+    /*! Use in ccbaStepChainsToPixCoords() */
+enum {
+      CCB_LOCAL_COORDS = 1,
+      CCB_GLOBAL_COORDS = 2
+};
+
+    /*! Use in ccbaGenerateSPGlobalLocs() */
+enum {
+      CCB_SAVE_ALL_PTS = 1,
+      CCB_SAVE_TURNING_PTS = 2
+};
+
+
+    /*!
+     * <pre>
+     * CCBord contains:
+     *
+     *    (1) a minimally-clipped bitmap of the component (pix),
+     *    (2) a boxa consisting of:
+     *          for the primary component:
+     *                (xul, yul) pixel location in global coords
+     *                (w, h) of the bitmap
+     *          for the hole components:
+     *                (x, y) in relative coordinates in primary component
+     *                (w, h) of the hole border (which is 2 pixels
+     *                       larger in each direction than the hole itself)
+     *    (3) a pta ('start') of the initial border pixel location for each
+     *        closed curve, all in relative coordinates of the primary
+     *        component.  This is given for the primary component,
+     *        followed by the hole components, if any.
+     *    (4) a refcount of the ccbord; used internally when a ccbord
+     *        is accessed from a ccborda (array of ccbord)
+     *    (5) a ptaa for the chain code for the border in relative
+     *        coordinates, where the first pta is the exterior border
+     *        and all other pta are for interior borders (holes)
+     *    (6) a ptaa for the global pixel loc rendition of the border,
+     *        where the first pta is the exterior border and all other
+     *        pta are for interior borders (holes).
+     *        This is derived from the local or step chain code.
+     *    (7) a numaa for the chain code for the border as orientation
+     *        directions between successive border pixels, where
+     *        the first numa is the exterior border and all other
+     *        numa are for interior borders (holes).  This is derived
+     *        from the local chain code.  The 8 directions are 0 - 7.
+     *    (8) a pta for a single chain for each c.c., comprised of outer
+     *        and hole borders, plus cut paths between them, all in
+     *        local coords.
+     *    (9) a pta for a single chain for each c.c., comprised of outer
+     *        and hole borders, plus cut paths between them, all in
+     *        global coords.
+     * </pre>
+     */
+struct CCBord
+{
+    struct Pix          *pix;          /*!< component bitmap (min size)      */
+    struct Boxa         *boxa;         /*!< regions of each closed curve     */
+    struct Pta          *start;        /*!< initial border pixel locations   */
+    l_int32              refcount;     /*!< number of handles; start at 1    */
+    struct Ptaa         *local;        /*!< ptaa of chain pixels (local)     */
+    struct Ptaa         *global;       /*!< ptaa of chain pixels (global)    */
+    struct Numaa        *step;         /*!< numaa of chain code (step dir)   */
+    struct Pta          *splocal;      /*!< pta of single chain (local)      */
+    struct Pta          *spglobal;     /*!< pta of single chain (global)     */
+};
+typedef struct CCBord CCBORD;
+
+/*! Array of CCBord */
+struct CCBorda
+{
+    struct Pix          *pix;          /*!< input pix (may be null)          */
+    l_int32              w;            /*!< width of pix                     */
+    l_int32              h;            /*!< height of pix                    */
+    l_int32              n;            /*!< number of ccbord in ptr array    */
+    l_int32              nalloc;       /*!< number of ccbord ptrs allocated  */
+    struct CCBord      **ccb;          /*!< ccb ptr array                    */
+};
+typedef struct CCBorda CCBORDA;
+
+
+#endif  /* LEPTONICA_CCBORD_H */
+
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/dewarp.h b/third_party/leptonica/uos/aarch64/include/leptonica/dewarp.h
new file mode 100644
index 00000000..37bfb632
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/dewarp.h
@@ -0,0 +1,191 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_DEWARP_H
+#define  LEPTONICA_DEWARP_H
+
+/*!
+ * \file dewarp.h
+ *
+ * <pre>
+ *     Data structure to hold arrays and results for generating
+ *     horizontal and vertical disparity arrays based on textlines.
+ *     Each disparity array is two-dimensional.  The vertical disparity
+ *     array gives a vertical displacement, relative to the lowest point
+ *     in the textlines.  The horizontal disparty array gives a horizontal
+ *     displacement, relative to the minimum values (for even pages)
+ *     or maximum values (for odd pages) of the left and right ends of
+ *     full textlines.  Horizontal alignment always involves translations
+ *     away from the book gutter.
+ *
+ *     We have intentionally separated the process of building models
+ *     from the rendering process that uses the models.  For any page,
+ *     the building operation either creates an actual model (that is,
+ *     a model with at least the vertical disparity being computed, and
+ *     for which the 'success' flag is set) or fails to create a model.
+ *     However, at rendering time, a page can have one of two different
+ *     types of models.
+ *     (1) A valid model is an actual model that meets the rendering
+ *         constraints, which are limits on model curvature parameters.
+ *         See dewarpaTestForValidModel() for details.
+ *         Valid models are identified by dewarpaInsertRefModels(),
+ *         which sets the 'vvalid' and 'hvalid' fields.  Only valid
+ *         models are used for rendering.
+ *     (2) A reference model is used by a page that doesn't have
+ *         a valid model, but has a nearby valid model of the same
+ *         parity (even/odd page) that it can use.  The range in pages
+ *         to search for a valid model is given by the 'maxdist' field.
+ *
+ *     At the rendering stage, vertical and horizontal disparities are
+ *     treated differently.  It is somewhat more robust to generate
+ *     vertical disparity models (VDM) than horizontal disparity
+ *     models (HDM). A valid VDM is required for any correction to
+ *     be made; if a valid VDM is not available, just use the input
+ *     image.  Otherwise, assuming it is available, the use of the
+ *     HDM is controlled by two fields: 'useboth' and 'check_columns'.
+ *       (a) With useboth == 0, we use only the VDM.
+ *       (b) With useboth == 1, we require using the VDM and, if a valid
+ *           horizontal disparity model (HDM) is available, we also use it.
+ *       (c) With check_columns == 1, check for multiple columns and if
+ *           true, only use the VDM, even if a valid HDM is available.
+ *           Note that 'check_columns' takes precedence over 'useboth'
+ *           when there is more than 1 column of text.  By default,
+ *           check_columns == 0.
+ *
+ *     The 'maxdist' parameter is input when the dewarpa is created.
+ *     The other rendering parameters have default values given in dewarp1.c.
+ *     All parameters used by rendering can be set (or reset) using accessors.
+ *
+ *     After dewarping, use of the VDM will cause all points on each
+ *     altered curve to have a y-value equal to the minimum.  Use of
+ *     the HDA will cause the left and right edges of the textlines
+ *     to be vertically aligned if they had been typeset flush-left
+ *     and flush-right, respectively.
+ *
+ *     The sampled disparity arrays are expanded to full resolution,
+ *     using linear interpolation, and this is further expanded
+ *     by slope continuation to the right and below if the image
+ *     is larger than the full resolution disparity arrays.  Then
+ *     the disparity correction can be applied to the input image.
+ *     If the input pix are 2x reduced, the expansion from sampled
+ *     to full res uses the product of (sampling) * (redfactor).
+ *
+ *     The most accurate results are produced at full resolution, and
+ *     this is generally recommended.
+ * </pre>
+ */
+
+    /*! Dewarp version for serialization
+     * <pre>
+     * Note on versioning of the serialization of this data structure:
+     * The dewarping utility and the stored data can be expected to change.
+     * In most situations, the serialized version is ephemeral -- it is
+     * not needed after being used.  No functions will be provided to
+     * convert between different versions.
+     * </pre>
+     */
+#define  DEWARP_VERSION_NUMBER      4
+
+/*! Data structure to hold a number of Dewarp */
+struct L_Dewarpa
+{
+    l_int32            nalloc;        /*!< size of dewarp ptr array          */
+    l_int32            maxpage;       /*!< maximum page number in array      */
+    struct L_Dewarp  **dewarp;        /*!< array of ptrs to page dewarp      */
+    struct L_Dewarp  **dewarpcache;   /*!< array of ptrs to cached dewarps   */
+    struct Numa       *namodels;      /*!< list of page numbers for pages    */
+                                      /*!< with page models                  */
+    struct Numa       *napages;       /*!< list of page numbers with either  */
+                                      /*!< page models or ref page models    */
+    l_int32            redfactor;     /*!< reduction factor of input: 1 or 2 */
+    l_int32            sampling;      /*!< disparity arrays sampling factor  */
+    l_int32            minlines;      /*!< min number of long lines required */
+    l_int32            maxdist;       /*!< max distance for getting ref page */
+    l_int32            max_linecurv;  /*!< maximum abs line curvature,       */
+                                      /*!< in micro-units                    */
+    l_int32            min_diff_linecurv; /*!< minimum abs diff line         */
+                                          /*!< curvature in micro-units      */
+    l_int32            max_diff_linecurv; /*!< maximum abs diff line         */
+                                          /*!< curvature in micro-units      */
+    l_int32            max_edgeslope; /*!< maximum abs left or right edge    */
+                                      /*!< slope, in milli-units             */
+    l_int32            max_edgecurv;  /*!< maximum abs left or right edge    */
+                                      /*!< curvature, in micro-units         */
+    l_int32            max_diff_edgecurv; /*!< maximum abs diff left-right   */
+                                      /*!< edge curvature, in micro-units    */
+    l_int32            useboth;       /*!< use both disparity arrays if      */
+                                      /*!< available; only vertical otherwise */
+    l_int32            check_columns; /*!< if there are multiple columns,    */
+                                      /*!< only use the vertical disparity   */
+                                      /*!< array                             */
+    l_int32            modelsready;   /*!< invalid models have been removed  */
+                                      /*!< and refs built against valid set  */
+};
+typedef struct L_Dewarpa L_DEWARPA;
+
+
+/*! Data structure for a single dewarp */
+struct L_Dewarp
+{
+    struct L_Dewarpa  *dewa;         /*!< ptr to parent (not owned)          */
+    struct Pix        *pixs;         /*!< source pix, 1 bpp                  */
+    struct FPix       *sampvdispar;  /*!< sampled vert disparity array       */
+    struct FPix       *samphdispar;  /*!< sampled horiz disparity array      */
+    struct FPix       *sampydispar;  /*!< sampled slope h-disparity array    */
+    struct FPix       *fullvdispar;  /*!< full vert disparity array          */
+    struct FPix       *fullhdispar;  /*!< full horiz disparity array         */
+    struct FPix       *fullydispar;  /*!< full slope h-disparity array       */
+    struct Numa       *namidys;      /*!< sorted y val of midpoint each line */
+    struct Numa       *nacurves;     /*!< sorted curvature of each line      */
+    l_int32            w;            /*!< width of source image              */
+    l_int32            h;            /*!< height of source image             */
+    l_int32            pageno;       /*!< page number; important for reuse   */
+    l_int32            sampling;     /*!< sampling factor of disparity arrays */
+    l_int32            redfactor;    /*!< reduction factor of pixs: 1 or 2   */
+    l_int32            minlines;     /*!< min number of long lines required  */
+    l_int32            nlines;       /*!< number of long lines found         */
+    l_int32            mincurv;      /*!< min line curvature in micro-units  */
+    l_int32            maxcurv;      /*!< max line curvature in micro-units  */
+    l_int32            leftslope;    /*!< left edge slope in milli-units     */
+    l_int32            rightslope;   /*!< right edge slope in milli-units    */
+    l_int32            leftcurv;     /*!< left edge curvature in micro-units */
+    l_int32            rightcurv;    /*!< right edge curvature in micro-units*/
+    l_int32            nx;           /*!< number of sampling pts in x-dir    */
+    l_int32            ny;           /*!< number of sampling pts in y-dir    */
+    l_int32            hasref;       /*!< 0 if normal; 1 if has a refpage    */
+    l_int32            refpage;      /*!< page with disparity model to use   */
+    l_int32            vsuccess;     /*!< sets to 1 if vert disparity builds */
+    l_int32            hsuccess;     /*!< sets to 1 if horiz disparity builds */
+    l_int32            ysuccess;     /*!< sets to 1 if slope disparity builds */
+    l_int32            vvalid;       /*!< sets to 1 if valid vert disparity  */
+    l_int32            hvalid;       /*!< sets to 1 if valid horiz disparity */
+    l_int32            skip_horiz;   /*!< if 1, skip horiz disparity         */
+                                     /*!< correction                         */
+    l_int32            debug;        /*!< set to 1 if debug output requested */
+};
+typedef struct L_Dewarp L_DEWARP;
+
+#endif  /* LEPTONICA_DEWARP_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/endianness.h b/third_party/leptonica/uos/aarch64/include/leptonica/endianness.h
new file mode 100644
index 00000000..8cdc060d
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/endianness.h
@@ -0,0 +1,11 @@
+#if !defined (L_BIG_ENDIAN) && !defined (L_LITTLE_ENDIAN)
+# if defined (__APPLE_CC__)
+#  ifdef __BIG_ENDIAN__
+#   define L_BIG_ENDIAN
+#  else
+#   define L_LITTLE_ENDIAN
+#  endif
+# else
+#  define L_LITTLE_ENDIAN
+# endif
+#endif
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/environ.h b/third_party/leptonica/uos/aarch64/include/leptonica/environ.h
new file mode 100644
index 00000000..ebb669af
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/environ.h
@@ -0,0 +1,509 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_ENVIRON_H
+#define  LEPTONICA_ENVIRON_H
+
+/*------------------------------------------------------------------------*
+ *  Defines and includes differ for Unix and Windows.  Also for Windows,  *
+ *  differentiate between conditionals based on platform and compiler.    *
+ *      For platforms:                                                    *
+ *          _WIN32       =>     Windows, 32- or 64-bit                    *
+ *          _WIN64       =>     Windows, 64-bit only                      *
+ *          __CYGWIN__   =>     Cygwin                                    *
+ *      For compilers:                                                    *
+ *          __GNUC__     =>     gcc                                       *
+ *          _MSC_VER     =>     msvc                                      *
+ *------------------------------------------------------------------------*/
+
+/* MS VC++ does not provide stdint.h, so define the missing types here */
+
+
+#ifndef _MSC_VER
+#include <stdint.h>
+
+#else
+/* Note that _WIN32 is defined for both 32 and 64 bit applications,
+   whereas _WIN64 is defined only for the latter */
+
+#ifdef _WIN64
+typedef __int64 intptr_t;
+typedef unsigned __int64 uintptr_t;
+#else
+typedef int intptr_t;
+typedef unsigned int uintptr_t;
+#endif
+
+/* VC++6 doesn't seem to have powf, expf. */
+#if (_MSC_VER < 1400)
+#define powf(x, y) (float)pow((double)(x), (double)(y))
+#define expf(x) (float)exp((double)(x))
+#endif
+
+#endif /* _MSC_VER */
+
+/* Windows specifics */
+#ifdef _WIN32
+  /* DLL EXPORTS and IMPORTS */
+  #if defined(LIBLEPT_EXPORTS)
+    #define LEPT_DLL __declspec(dllexport)
+  #elif defined(LIBLEPT_IMPORTS)
+    #define LEPT_DLL __declspec(dllimport)
+  #else
+    #define LEPT_DLL
+  #endif
+#else  /* non-Windows specifics */
+  #include <stdint.h>
+  #define LEPT_DLL
+#endif  /* _WIN32 */
+
+typedef intptr_t l_intptr_t;
+typedef uintptr_t l_uintptr_t;
+
+
+/*--------------------------------------------------------------------*
+ * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*
+ *                          USER CONFIGURABLE                         *
+ * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*
+ *               Environment variables with I/O libraries             *
+ *               Manual Configuration Only: NOT AUTO_CONF             *
+ *--------------------------------------------------------------------*/
+/*
+ *  Leptonica provides interfaces to link to several external image
+ *  I/O libraries, plus zlib.  Setting any of these to 0 here causes
+ *  non-functioning stubs to be linked.
+ */
+#if !defined(HAVE_CONFIG_H) && !defined(ANDROID_BUILD) && !defined(OS_IOS)
+#define  HAVE_LIBJPEG     1
+#define  HAVE_LIBTIFF     1
+#define  HAVE_LIBPNG      1
+#define  HAVE_LIBZ        1
+#define  HAVE_LIBGIF      0
+#define  HAVE_LIBUNGIF    0
+#define  HAVE_LIBWEBP     0
+#define  HAVE_LIBJP2K     0
+
+    /* Leptonica supports both OpenJPEG 2.0 and 2.1.  If you have a
+     * version of openjpeg (HAVE_LIBJP2K) that is not 2.1, set the
+     * path to the openjpeg.h header in angle brackets here. */
+#define  LIBJP2K_HEADER   <openjpeg-2.1/openjpeg.h>
+#endif  /* ! HAVE_CONFIG_H etc. */
+
+/*
+ * On linux systems, you can do I/O between Pix and memory.  Specifically,
+ * you can compress (write compressed data to memory from a Pix) and
+ * uncompress (read from compressed data in memory to a Pix).
+ * For jpeg, png, jp2k, gif, pnm and bmp, these use the non-posix GNU
+ * functions fmemopen() and open_memstream().  These functions are not
+ * available on other systems.
+ * To use these functions in linux, you must define HAVE_FMEMOPEN to 1.
+ * To use them on MacOS, which does not support these functions, set it to 0.
+ */
+#if !defined(HAVE_CONFIG_H) && !defined(ANDROID_BUILD) && !defined(OS_IOS) && \
+    !defined(_WIN32)
+#define  HAVE_FMEMOPEN    1
+#endif  /* ! HAVE_CONFIG_H etc. */
+
+
+/*--------------------------------------------------------------------*
+ * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*
+ *                          USER CONFIGURABLE                         *
+ * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*
+ *     Environ variables for image I/O without external libraries     *
+ *--------------------------------------------------------------------*/
+/*
+ *  Leptonica supplies I/O support without using external libraries for:
+ *     * image read/write for bmp, pnm
+ *     * header read for jp2k
+ *     * image wrapping write for pdf and ps.
+ *  Setting any of these to 0 causes non-functioning stubs to be linked.
+ */
+#define  USE_BMPIO        1
+#define  USE_PNMIO        1
+#define  USE_JP2KHEADER   1
+#define  USE_PDFIO        1
+#define  USE_PSIO         1
+
+
+/*--------------------------------------------------------------------*
+ * It is desirable on Windows to have all temp files written to the same
+ * subdirectory of the Windows <Temp> directory, because files under <Temp>
+ * persist after reboot, and the regression tests write a lot of files.
+ * We write all test files to /tmp/lept or subdirectories of /tmp/lept.
+ * Windows temp files are specified as in unix, but have the translation
+ *        /tmp/lept/xxx  -->   <Temp>/lept/xxx
+ *--------------------------------------------------------------------*/
+
+
+/*--------------------------------------------------------------------*
+ *                          Built-in types                            *
+ *--------------------------------------------------------------------*/
+typedef signed char             l_int8;     /*!< signed 8-bit value */
+typedef unsigned char           l_uint8;    /*!< unsigned 8-bit value */
+typedef short                   l_int16;    /*!< signed 16-bit value */
+typedef unsigned short          l_uint16;   /*!< unsigned 16-bit value */
+typedef int                     l_int32;    /*!< signed 32-bit value */
+typedef unsigned int            l_uint32;   /*!< unsigned 32-bit value */
+typedef float                   l_float32;  /*!< 32-bit floating point value */
+typedef double                  l_float64;  /*!< 64-bit floating point value */
+#ifdef COMPILER_MSVC
+typedef __int64                 l_int64;    /*!< signed 64-bit value */
+typedef unsigned __int64        l_uint64;   /*!< unsigned 64-bit value */
+#else
+typedef long long               l_int64;    /*!< signed 64-bit value */
+typedef unsigned long long      l_uint64;   /*!< unsigned 64-bit value */
+#endif  /* COMPILER_MSVC */
+
+
+/*------------------------------------------------------------------------*
+ *                            Standard macros                             *
+ *------------------------------------------------------------------------*/
+#ifndef L_MIN
+/*! Minimum of %x and %y */
+#define L_MIN(x,y)   (((x) < (y)) ? (x) : (y))
+#endif
+
+#ifndef L_MAX
+/*! Maximum of %x and %y */
+#define L_MAX(x,y)   (((x) > (y)) ? (x) : (y))
+#endif
+
+#ifndef L_ABS
+/*! Absoulute value of %x */
+#define L_ABS(x)     (((x) < 0) ? (-1 * (x)) : (x))
+#endif
+
+#ifndef L_SIGN
+/*! Sign of %x */
+#define L_SIGN(x)    (((x) < 0) ? -1 : 1)
+#endif
+
+#ifndef UNDEF
+/*! Undefined value */
+#define UNDEF        -1
+#endif
+
+#ifndef NULL
+/*! NULL value */
+#define NULL          0
+#endif
+
+#ifndef TRUE
+/*! True value */
+#define TRUE          1
+#endif
+
+#ifndef FALSE
+/*! False value */
+#define FALSE         0
+#endif
+
+
+/*--------------------------------------------------------------------*
+ *            Environment variables for endian dependence             *
+ *--------------------------------------------------------------------*/
+/*
+ *  To control conditional compilation, one of two variables
+ *
+ *       L_LITTLE_ENDIAN  (e.g., for Intel X86)
+ *       L_BIG_ENDIAN     (e.g., for Sun SPARC, Mac Power PC)
+ *
+ *  is defined when the GCC compiler is invoked.
+ *  All code should compile properly for both hardware architectures.
+ */
+
+
+/*------------------------------------------------------------------------*
+ *                    Simple search state variables                       *
+ *------------------------------------------------------------------------*/
+
+/*! Simple search state variables */
+enum {
+    L_NOT_FOUND = 0,
+    L_FOUND = 1
+};
+
+
+/*------------------------------------------------------------------------*
+ *                     Path separator conversion                          *
+ *------------------------------------------------------------------------*/
+
+/*! Path separator conversion */
+enum {
+    UNIX_PATH_SEPCHAR = 0,
+    WIN_PATH_SEPCHAR = 1
+};
+
+
+/*------------------------------------------------------------------------*
+ *                          Timing structs                                *
+ *------------------------------------------------------------------------*/
+typedef void *L_TIMER;
+
+/*! Timing struct */
+struct L_WallTimer {
+    l_int32  start_sec;
+    l_int32  start_usec;
+    l_int32  stop_sec;
+    l_int32  stop_usec;
+};
+typedef struct L_WallTimer  L_WALLTIMER;
+
+
+/*------------------------------------------------------------------------*
+ *                      Standard memory allocation                        *
+ *                                                                        *
+ *  These specify the memory management functions that are used           *
+ *  on all heap data except for Pix.  Memory management for Pix           *
+ *  also defaults to malloc and free.  See pix1.c for details.            *
+ *------------------------------------------------------------------------*/
+#define LEPT_MALLOC(blocksize)           malloc(blocksize)
+#define LEPT_CALLOC(numelem, elemsize)   calloc(numelem, elemsize)
+#define LEPT_REALLOC(ptr, blocksize)     realloc(ptr, blocksize)
+#define LEPT_FREE(ptr)                   free(ptr)
+
+
+/*------------------------------------------------------------------------*
+ *         Control printing of error, warning, and info messages          *
+ *                                                                        *
+ *  To omit all messages to stderr, simply define NO_CONSOLE_IO on the    *
+ *  command line.  For finer grained control, we have a mechanism         *
+ *  based on the message severity level.  The following assumes that      *
+ *  NO_CONSOLE_IO is not defined.                                         *
+ *                                                                        *
+ *  Messages are printed if the message severity is greater than or equal *
+ *  to the current severity threshold.  The current severity threshold    *
+ *  is the greater of the compile-time severity, which is the minimum     *
+ *  severity that can be reported, and the run-time severity, which is    *
+ *  the severity threshold at the moment.                                 *
+ *                                                                        *
+ *  The compile-time threshold determines which messages are compiled     *
+ *  into the library for potential printing.  Messages below the          *
+ *  compile-time threshold are omitted and can never be printed.  The     *
+ *  default compile-time threshold is L_SEVERITY_INFO, but this may be    *
+ *  overridden by defining MINIMUM_SEVERITY to the desired enumeration    *
+ *  identifier on the compiler command line.  Defining NO_CONSOLE_IO on   *
+ *  the command line is the same as setting MINIMUM_SEVERITY to           *
+ *  L_SEVERITY_NONE.                                                      *
+ *                                                                        *
+ *  The run-time threshold determines which messages are printed during   *
+ *  library execution.  It defaults to the compile-time threshold but     *
+ *  may be changed either statically by defining DEFAULT_SEVERITY to      *
+ *  the desired enumeration identifier on the compiler command line, or   *
+ *  dynamically by calling setMsgSeverity() to specify a new threshold.   *
+ *  The run-time threshold may also be set from the value of the          *
+ *  environment variable LEPT_MSG_SEVERITY by calling setMsgSeverity()   *
+ *  and specifying L_SEVERITY_EXTERNAL.                                   *
+ *                                                                        *
+ *  In effect, the compile-time threshold setting says, "Generate code    *
+ *  to permit messages of equal or greater severity than this to be       *
+ *  printed, if desired," whereas the run-time threshold setting says,    *
+ *  "Print messages that have an equal or greater severity than this."    *
+ *------------------------------------------------------------------------*/
+
+/*! Control printing of error, warning and info messages */
+enum {
+    L_SEVERITY_EXTERNAL = 0,   /* Get the severity from the environment   */
+    L_SEVERITY_ALL      = 1,   /* Lowest severity: print all messages     */
+    L_SEVERITY_DEBUG    = 2,   /* Print debugging and higher messages     */
+    L_SEVERITY_INFO     = 3,   /* Print informational and higher messages */
+    L_SEVERITY_WARNING  = 4,   /* Print warning and higher messages       */
+    L_SEVERITY_ERROR    = 5,   /* Print error and higher messages         */
+    L_SEVERITY_NONE     = 6    /* Highest severity: print no messages     */
+};
+
+/*  No message less than the compile-time threshold will ever be
+ *  reported, regardless of the current run-time threshold.  This allows
+ *  selection of the set of messages to include in the library.  For
+ *  example, setting the threshold to L_SEVERITY_WARNING eliminates all
+ *  informational messages from the library.  With that setting, both
+ *  warning and error messages would be printed unless setMsgSeverity()
+ *  was called, or DEFAULT_SEVERITY was redefined, to set the run-time
+ *  severity to L_SEVERITY_ERROR.  In that case, only error messages
+ *  would be printed.
+ *
+ *  This mechanism makes the library smaller and faster, by eliminating
+ *  undesired message reporting and the associated run-time overhead for
+ *  message threshold checking, because code for messages whose severity
+ *  is lower than MINIMUM_SEVERITY won't be generated.
+ *
+ *  A production library might typically permit ERROR messages to be
+ *  generated, and a development library might permit DEBUG and higher.
+ *  The actual messages printed (as opposed to generated) would depend
+ *  on the current run-time severity threshold.
+ *
+ *  This is a complex mechanism and a few examples may help.
+ *  (1) No output permitted under any circumstances.
+ *      Use:  -DNO_CONSOLE_IO  or  -DMINIMUM_SEVERITY=6
+ *  (2) Suppose you want to only allow error messages, and you don't
+ *      want to permit info or warning messages at runtime.
+ *      Use:  -DMINIMUM_SEVERITY=5
+ *  (3) Suppose you want to only allow error messages by default,
+ *      but you will permit this to be over-ridden at runtime.
+ *      Use:  -DDEFAULT_SEVERITY=5
+ *            and to allow info and warning override:
+ *                 setMsgSeverity(L_SEVERITY_INFO);
+ */
+
+#ifdef  NO_CONSOLE_IO
+  #undef MINIMUM_SEVERITY
+  #undef DEFAULT_SEVERITY
+
+  #define MINIMUM_SEVERITY      L_SEVERITY_NONE    /*!< Compile-time default */
+  #define DEFAULT_SEVERITY      L_SEVERITY_NONE    /*!< Run-time default */
+
+#else
+  #ifndef MINIMUM_SEVERITY
+    #define MINIMUM_SEVERITY    L_SEVERITY_INFO    /*!< Compile-time default */
+  #endif
+
+  #ifndef DEFAULT_SEVERITY
+    #define DEFAULT_SEVERITY    MINIMUM_SEVERITY   /*!< Run-time default */
+  #endif
+#endif
+
+
+/*!  The run-time message severity threshold is defined in utils.c.  */
+LEPT_DLL extern l_int32  LeptMsgSeverity;
+
+/*
+ * <pre>
+ *  Usage
+ *  =====
+ *  Messages are of two types.
+ *
+ *  (1) The messages
+ *      ERROR_INT(a,b,c)       : returns l_int32
+ *      ERROR_FLOAT(a,b,c)     : returns l_float32
+ *      ERROR_PTR(a,b,c)       : returns void*
+ *  are used to return from functions and take a fixed set of parameters:
+ *      a : <message string>
+ *      b : procName
+ *      c : <return value from function>
+ *  where procName is the name of the local variable naming the function.
+ *
+ *  (2) The purely informational L_* messages
+ *      L_ERROR(a,...)
+ *      L_WARNING(a,...)
+ *      L_INFO(a,...)
+ *  do not take a return value, but they take at least two parameters:
+ *      a  :  <message string> with optional format conversions
+ *      v1 : procName    (this must be included as the first vararg)
+ *      v2, ... :  optional varargs to match format converters in the message
+ *
+ *  To return an error from a function that returns void, use:
+ *      L_ERROR(<message string>, procName, [...])
+ *      return;
+ *
+ *  Implementation details
+ *  ======================
+ *  Messages are defined with the IF_SEV macro.  The first parameter is
+ *  the message severity, the second is the function to call if the
+ *  message is to be printed, and the third is the return value if the
+ *  message is to be suppressed.  For example, we might have an
+ *  informational message defined as:
+ *
+ *    IF_SEV(L_SEVERITY_INFO, fprintf(.......), 0)
+ *
+ *  The macro expands into a conditional.  Because the first comparison
+ *  is between two constants, an optimizing compiler will remove either
+ *  the comparison (if it's true) or the entire macro expansion (if it
+ *  is false).  This means that there is no run-time overhead for
+ *  messages whose severity falls below the minimum specified at compile
+ *  time, and for others the overhead is one (not two) comparisons.
+ *
+ *  The L_nnn() macros below do not return a value, but because the
+ *  conditional operator requires one for the false condition, we
+ *  specify a void expression.
+ * </pre>
+ */
+
+#ifdef  NO_CONSOLE_IO
+
+  #define PROCNAME(name)
+  #define ERROR_INT(a,b,c)            ((l_int32)(c))
+  #define ERROR_FLOAT(a,b,c)          ((l_float32)(c))
+  #define ERROR_PTR(a,b,c)            ((void *)(c))
+  #define L_ERROR(a,...)
+  #define L_WARNING(a,...)
+  #define L_INFO(a,...)
+
+#else
+
+  #define PROCNAME(name)              static const char procName[] = name
+  #define IF_SEV(l,t,f) \
+      ((l) >= MINIMUM_SEVERITY && (l) >= LeptMsgSeverity ? (t) : (f))
+
+  #define ERROR_INT(a,b,c) \
+      IF_SEV(L_SEVERITY_ERROR, returnErrorInt((a),(b),(c)), (l_int32)(c))
+  #define ERROR_FLOAT(a,b,c) \
+      IF_SEV(L_SEVERITY_ERROR, returnErrorFloat((a),(b),(c)), (l_float32)(c))
+  #define ERROR_PTR(a,b,c) \
+      IF_SEV(L_SEVERITY_ERROR, returnErrorPtr((a),(b),(c)), (void *)(c))
+
+  #define L_ERROR(a,...) \
+      IF_SEV(L_SEVERITY_ERROR, \
+             (void)fprintf(stderr, "Error in %s: " a, __VA_ARGS__), \
+             (void)0)
+  #define L_WARNING(a,...) \
+      IF_SEV(L_SEVERITY_WARNING, \
+             (void)fprintf(stderr, "Warning in %s: " a, __VA_ARGS__), \
+             (void)0)
+  #define L_INFO(a,...) \
+      IF_SEV(L_SEVERITY_INFO, \
+             (void)fprintf(stderr, "Info in %s: " a, __VA_ARGS__), \
+             (void)0)
+
+#if 0  /* Alternative method for controlling L_* message output */
+  #define L_ERROR(a,...) \
+    { if (L_SEVERITY_ERROR >= MINIMUM_SEVERITY && \
+          L_SEVERITY_ERROR >= LeptMsgSeverity) \
+          fprintf(stderr, "Error in %s: " a, __VA_ARGS__) \
+    }
+  #define L_WARNING(a,...) \
+    { if (L_SEVERITY_WARNING >= MINIMUM_SEVERITY && \
+          L_SEVERITY_WARNING >= LeptMsgSeverity) \
+          fprintf(stderr, "Warning in %s: " a, __VA_ARGS__) \
+    }
+  #define L_INFO(a,...) \
+    { if (L_SEVERITY_INFO >= MINIMUM_SEVERITY && \
+          L_SEVERITY_INFO >= LeptMsgSeverity) \
+             fprintf(stderr, "Info in %s: " a, __VA_ARGS__) \
+    }
+#endif
+
+#endif  /* NO_CONSOLE_IO */
+
+
+/*------------------------------------------------------------------------*
+ *              snprintf() renamed in MSVC (pre-VS2015)                   *
+ *------------------------------------------------------------------------*/
+#if defined _MSC_VER && _MSC_VER < 1900
+#define snprintf(buf, size, ...)  _snprintf_s(buf, size, _TRUNCATE, __VA_ARGS__)
+#endif
+
+
+#endif /* LEPTONICA_ENVIRON_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/gplot.h b/third_party/leptonica/uos/aarch64/include/leptonica/gplot.h
new file mode 100644
index 00000000..9d74eafb
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/gplot.h
@@ -0,0 +1,96 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_GPLOT_H
+#define  LEPTONICA_GPLOT_H
+
+/*!
+ * \file gplot.h
+ *
+ * <pre>
+ *   Data structures and parameters for generating gnuplot files
+ *
+ *   We used to support X11 output, but recent versions of gnuplot do not
+ *   support the X11 terminal.  To get display to your screen, use
+ *   GPLOT_PNG output; e.g.,
+ *       gplotSimple1(na, GPLOT_PNG, "/tmp/someroot", ...);
+ *       l_fileDisplay("/tmp/someroot.png", ...);
+ * </pre>
+ */
+
+#define  GPLOT_VERSION_NUMBER    1
+
+#define  NUM_GPLOT_STYLES      5
+enum GPLOT_STYLE {
+    GPLOT_LINES       = 0,
+    GPLOT_POINTS      = 1,
+    GPLOT_IMPULSES    = 2,
+    GPLOT_LINESPOINTS = 3,
+    GPLOT_DOTS        = 4
+};
+
+#define  NUM_GPLOT_OUTPUTS     6
+enum GPLOT_OUTPUT {
+    GPLOT_NONE  = 0,
+    GPLOT_PNG   = 1,
+    GPLOT_PS    = 2,
+    GPLOT_EPS   = 3,
+    GPLOT_LATEX = 4
+};
+
+enum GPLOT_SCALING {
+    GPLOT_LINEAR_SCALE  = 0,   /*!< default */
+    GPLOT_LOG_SCALE_X   = 1,
+    GPLOT_LOG_SCALE_Y   = 2,
+    GPLOT_LOG_SCALE_X_Y = 3
+};
+
+extern const char  *gplotstylenames[];  /*!< used in gnuplot cmd file */
+extern const char  *gplotfilestyles[];  /*!< used in simple file input */
+extern const char  *gplotfileoutputs[]; /*!< used in simple file input */
+
+/*! Data structure for generating gnuplot files */
+struct GPlot
+{
+    char          *rootname;   /*!< for cmd, data, output            */
+    char          *cmdname;    /*!< command file name                */
+    struct Sarray *cmddata;    /*!< command file contents            */
+    struct Sarray *datanames;  /*!< data file names                  */
+    struct Sarray *plotdata;   /*!< plot data (1 string/file)        */
+    struct Sarray *plottitles; /*!< title for each individual plot   */
+    struct Numa   *plotstyles; /*!< plot style for individual plots  */
+    l_int32        nplots;     /*!< current number of plots          */
+    char          *outname;    /*!< output file name                 */
+    l_int32        outformat;  /*!< GPLOT_OUTPUT values              */
+    l_int32        scaling;    /*!< GPLOT_SCALING values             */
+    char          *title;      /*!< optional                         */
+    char          *xlabel;     /*!< optional x axis label            */
+    char          *ylabel;     /*!< optional y axis label            */
+};
+typedef struct GPlot  GPLOT;
+
+
+#endif /* LEPTONICA_GPLOT_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/heap.h b/third_party/leptonica/uos/aarch64/include/leptonica/heap.h
new file mode 100644
index 00000000..d39b06b9
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/heap.h
@@ -0,0 +1,87 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_HEAP_H
+#define  LEPTONICA_HEAP_H
+
+/*!
+ * \file heap.h
+ *
+ * <pre>
+ *      Expandable priority queue configured as a heap for arbitrary void* data
+ *
+ *      The L_Heap is used to implement a priority queue.  The elements
+ *      in the heap are ordered in either increasing or decreasing key value.
+ *      The key is a float field 'keyval' that is required to be
+ *      contained in the elements of the queue.
+ *
+ *      The heap is a simple binary tree with the following constraints:
+ *         - the key of each node is >= the keys of the two children
+ *         - the tree is complete, meaning that each level (1, 2, 4, ...)
+ *           is filled and the last level is filled from left to right
+ *
+ *      The tree structure is implicit in the queue array, with the
+ *      array elements numbered as a breadth-first search of the tree
+ *      from left to right.  It is thus guaranteed that the largest
+ *      (or smallest) key belongs to the first element in the array.
+ *
+ *      Heap sort is used to sort the array.  Once an array has been
+ *      sorted as a heap, it is convenient to use it as a priority queue,
+ *      because the min (or max) elements are always at the root of
+ *      the tree (element 0), and once removed, the heap can be
+ *      resorted in not more than log[n] steps, where n is the number
+ *      of elements on the heap.  Likewise, if an arbitrary element is
+ *      added to the end of the array A, the sorted heap can be restored
+ *      in not more than log[n] steps.
+ *
+ *      A L_Heap differs from a L_Queue in that the elements in the former
+ *      are sorted by a key.  Internally, the array is maintained
+ *      as a queue, with a pointer to the end of the array.  The
+ *      head of the array always remains at array[0].  The array is
+ *      maintained (sorted) as a heap.  When an item is removed from
+ *      the head, the last item takes its place (thus reducing the
+ *      array length by 1), and this is followed by array element
+ *      swaps to restore the heap property.   When an item is added,
+ *      it goes at the end of the array, and is swapped up to restore
+ *      the heap.  If the ptr array is full, adding another item causes
+ *      the ptr array size to double.
+ *
+ *      For further implementation details, see heap.c.
+ * </pre>
+ */
+
+/*! Heap of arbitrary void* data */
+struct L_Heap
+{
+    l_int32      nalloc;      /*!< size of allocated ptr array               */
+    l_int32      n;           /*!< number of elements stored in the heap     */
+    void       **array;       /*!< ptr array                                 */
+    l_int32      direction;   /*!< L_SORT_INCREASING or L_SORT_DECREASING    */
+};
+typedef struct L_Heap  L_HEAP;
+
+
+#endif  /* LEPTONICA_HEAP_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/imageio.h b/third_party/leptonica/uos/aarch64/include/leptonica/imageio.h
new file mode 100644
index 00000000..fb7456d4
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/imageio.h
@@ -0,0 +1,237 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+/*!
+ * \file imageio.h
+ *
+ * <pre>
+ *  General features of image I/O in leptonica
+ *
+ *  At present, there are 9 file formats for images that can be read
+ *  and written:
+ *      png (requires libpng, libz)
+ *      jpeg (requires libjpeg)
+ *      tiff (requires libtiff, libz)
+ *      gif (requires libgif)
+ *      webp (requires libwebp)
+ *      jp2 (requires libopenjp2)
+ *      bmp (no library required)
+ *      pnm (no library required)
+ *      spix (no library required)
+ *  Additionally, there are two file formats for writing (only) images:
+ *      PostScript (requires libpng, libz, libjpeg, libtiff)
+ *      pdf (requires libpng, libz, libjpeg, libtiff)
+ *
+ *  For all 9 read/write formats, leptonica provides interconversion
+ *  between pix (with raster data) and formatted image data:
+ *      Conversion from pix (typically compression):
+ *          pixWrite():        pix --> file
+ *          pixWriteStream():  pix --> filestream (aka FILE*)
+ *          pixWriteMem():     pix --> memory buffer
+ *      Conversion to pix (typically decompression):
+ *          pixRead():         file --> pix
+ *          pixReadStream():   filestream --> pix
+ *          pixReadMem():      memory buffer --> pix
+ *
+ *  Conversions for which the image data is not compressed are:
+ *     * uncompressed tiff   (IFF_TIFF)
+ *     * bmp
+ *     * pnm
+ *     * spix (fast serialization that copies the pix raster data)
+ *
+ *  The image header (metadata) information can be read from either
+ *  the compressed file or a memory buffer, for all 9 formats.
+ * </pre>
+ */
+
+#ifndef  LEPTONICA_IMAGEIO_H
+#define  LEPTONICA_IMAGEIO_H
+
+/* --------------------------------------------------------------- *
+ *                    Image file format types                      *
+ * --------------------------------------------------------------- */
+/* 
+ *  The IFF_DEFAULT flag is used to write the file out in the
+ *  same (input) file format that the pix was read from.  If the pix
+ *  was not read from file, the input format field will be
+ *  IFF_UNKNOWN and the output file format will be chosen to
+ *  be compressed and lossless; namely, IFF_TIFF_G4 for d = 1
+ *  and IFF_PNG for everything else.
+ *
+ *  In the future, new format types that have defined extensions
+ *  will be added before IFF_DEFAULT, and will be kept in sync with
+ *  the file format extensions in writefile.c.  The positions of
+ *  file formats before IFF_DEFAULT will remain invariant.
+ */
+
+/*! Image file format types */
+enum {
+    IFF_UNKNOWN        = 0,
+    IFF_BMP            = 1,
+    IFF_JFIF_JPEG      = 2,
+    IFF_PNG            = 3,
+    IFF_TIFF           = 4,
+    IFF_TIFF_PACKBITS  = 5,
+    IFF_TIFF_RLE       = 6,
+    IFF_TIFF_G3        = 7,
+    IFF_TIFF_G4        = 8,
+    IFF_TIFF_LZW       = 9,
+    IFF_TIFF_ZIP       = 10,
+    IFF_PNM            = 11,
+    IFF_PS             = 12,
+    IFF_GIF            = 13,
+    IFF_JP2            = 14,
+    IFF_WEBP           = 15,
+    IFF_LPDF           = 16,
+    IFF_DEFAULT        = 17,
+    IFF_SPIX           = 18
+};
+
+
+/* --------------------------------------------------------------- *
+ *                         Format header ids                       *
+ * --------------------------------------------------------------- */
+
+/*! Format header ids */
+enum {
+    BMP_ID             = 0x4d42,     /*!< BM - for bitmaps    */
+    TIFF_BIGEND_ID     = 0x4d4d,     /*!< MM - for 'motorola' */
+    TIFF_LITTLEEND_ID  = 0x4949      /*!< II - for 'intel'    */
+};
+
+
+/* --------------------------------------------------------------- *
+ *                Hinting bit flags in jpeg reader                 *
+ * --------------------------------------------------------------- */
+
+/*! Hinting bit flags in jpeg reader */
+enum {
+    L_JPEG_READ_LUMINANCE = 1,   /*!< only want luminance data; no chroma */
+    L_JPEG_FAIL_ON_BAD_DATA = 2  /*!< don't return possibly damaged pix */
+};
+
+
+/* --------------------------------------------------------------- *
+ *                    Pdf formatted encoding types                 *
+ * --------------------------------------------------------------- */
+
+/*! Pdf formatted encoding types */
+enum {
+    L_DEFAULT_ENCODE  = 0,  /*!< use default encoding based on image        */
+    L_JPEG_ENCODE     = 1,  /*!< use dct encoding: 8 and 32 bpp, no cmap    */
+    L_G4_ENCODE       = 2,  /*!< use ccitt g4 fax encoding: 1 bpp           */
+    L_FLATE_ENCODE    = 3,  /*!< use flate encoding: any depth, cmap ok     */
+    L_JP2K_ENCODE     = 4   /*!< use jp2k encoding: 8 and 32 bpp, no cmap   */
+};
+
+
+/* --------------------------------------------------------------- *
+ *                    Compressed image data                        *
+ * --------------------------------------------------------------- */
+/* 
+ *  In use, either datacomp or data85 will be produced, depending
+ *  on whether the data needs to be ascii85 encoded.  PostScript
+ *  requires ascii85 encoding; pdf does not.
+ *
+ *  For the colormap (flate compression only), PostScript uses ascii85
+ *  encoding and pdf uses a bracketed array of space-separated
+ *  hex-encoded rgb triples.  Only tiff g4 (type == L_G4_ENCODE) uses
+ *  the minisblack field.
+ */
+
+/*! Compressed image data */
+struct L_Compressed_Data
+{
+    l_int32            type;         /*!< encoding type: L_JPEG_ENCODE, etc   */
+    l_uint8           *datacomp;     /*!< gzipped raster data                 */
+    size_t             nbytescomp;   /*!< number of compressed bytes          */
+    char              *data85;       /*!< ascii85-encoded gzipped raster data */
+    size_t             nbytes85;     /*!< number of ascii85 encoded bytes     */
+    char              *cmapdata85;   /*!< ascii85-encoded uncompressed cmap   */
+    char              *cmapdatahex;  /*!< hex pdf array for the cmap          */
+    l_int32            ncolors;      /*!< number of colors in cmap            */
+    l_int32            w;            /*!< image width                         */
+    l_int32            h;            /*!< image height                        */
+    l_int32            bps;          /*!< bits/sample; typ. 1, 2, 4 or 8      */
+    l_int32            spp;          /*!< samples/pixel; typ. 1 or 3          */
+    l_int32            minisblack;   /*!< tiff g4 photometry                  */
+    l_int32            predictor;    /*!< flate data has PNG predictors       */
+    size_t             nbytes;       /*!< number of uncompressed raster bytes */
+    l_int32            res;          /*!< resolution (ppi)                    */
+};
+typedef struct L_Compressed_Data  L_COMP_DATA;
+
+
+/* ------------------------------------------------------------------------- *
+ *                           Pdf multi image flags                           *
+ * ------------------------------------------------------------------------- */
+
+/*! Pdf multi image flags */
+enum {
+    L_FIRST_IMAGE   = 1,    /*!< first image to be used                      */
+    L_NEXT_IMAGE    = 2,    /*!< intermediate image; not first or last       */
+    L_LAST_IMAGE    = 3     /*!< last image to be used                       */
+};
+
+
+/* ------------------------------------------------------------------------- *
+ *                     Intermediate pdf generation data                      *
+ * ------------------------------------------------------------------------- */
+/* 
+ *  This accumulates data for generating a pdf of a single page consisting
+ *  of an arbitrary number of images.
+ *
+ *  None of the strings have a trailing newline.
+ */
+
+/*! Intermediate pdf generation data */
+struct L_Pdf_Data
+{
+    char              *title;        /*!< optional title for pdf              */
+    l_int32            n;            /*!< number of images                    */
+    l_int32            ncmap;        /*!< number of colormaps                 */
+    struct L_Ptra     *cida;         /*!< array of compressed image data      */
+    char              *id;           /*!< %PDF-1.2 id string                  */
+    char              *obj1;         /*!< catalog string                      */
+    char              *obj2;         /*!< metadata string                     */
+    char              *obj3;         /*!< pages string                        */
+    char              *obj4;         /*!< page string (variable data)         */
+    char              *obj5;         /*!< content string (variable data)      */
+    char              *poststream;   /*!< post-binary-stream string           */
+    char              *trailer;      /*!< trailer string (variable data)      */
+    struct Pta        *xy;           /*!< store (xpt, ypt) array              */
+    struct Pta        *wh;           /*!< store (wpt, hpt) array              */
+    struct Box        *mediabox;     /*!< bounding region for all images      */
+    struct Sarray     *saprex;       /*!< pre-binary-stream xobject strings   */
+    struct Sarray     *sacmap;       /*!< colormap pdf object strings         */
+    struct L_Dna      *objsize;      /*!< sizes of each pdf string object     */
+    struct L_Dna      *objloc;       /*!< location of each pdf string object  */
+    l_int32            xrefloc;      /*!< location of xref                    */
+};
+typedef struct L_Pdf_Data  L_PDF_DATA;
+
+
+#endif  /* LEPTONICA_IMAGEIO_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/jbclass.h b/third_party/leptonica/uos/aarch64/include/leptonica/jbclass.h
new file mode 100644
index 00000000..84a48a93
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/jbclass.h
@@ -0,0 +1,141 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_JBCLASS_H
+#define  LEPTONICA_JBCLASS_H
+
+/*!
+ * \file jbclass.h
+ *
+ *       JbClasser
+ *       JbData
+ */
+
+
+    /*!
+     * <pre>
+     * The JbClasser struct holds all the data accumulated during the
+     * classification process that can be used for a compressed
+     * jbig2-type representation of a set of images.  This is created
+     * in an initialization process and added to as the selected components
+     * on each successive page are analyzed.
+     * </pre>
+     */
+struct JbClasser
+{
+    struct Sarray   *safiles;      /*!< input page image file names          */
+    l_int32          method;       /*!< JB_RANKHAUS, JB_CORRELATION          */
+    l_int32          components;   /*!< JB_CONN_COMPS, JB_CHARACTERS or      */
+                                   /*!< JB_WORDS                             */
+    l_int32          maxwidth;     /*!< max component width allowed          */
+    l_int32          maxheight;    /*!< max component height allowed         */
+    l_int32          npages;       /*!< number of pages already processed    */
+    l_int32          baseindex;    /*!< number components already processed  */
+                                   /*!< on fully processed pages             */
+    struct Numa     *nacomps;      /*!< number of components on each page    */
+    l_int32          sizehaus;     /*!< size of square struct elem for haus  */
+    l_float32        rankhaus;     /*!< rank val of haus match, each way     */
+    l_float32        thresh;       /*!< thresh value for correlation score   */
+    l_float32        weightfactor; /*!< corrects thresh value for heaver     */
+                                   /*!< components; use 0 for no correction  */
+    struct Numa     *naarea;       /*!< w * h of each template, without      */
+                                   /*!< extra border pixels                  */
+    l_int32          w;            /*!< max width of original src images     */
+    l_int32          h;            /*!< max height of original src images    */
+    l_int32          nclass;       /*!< current number of classes            */
+    l_int32          keep_pixaa;   /*!< If zero, pixaa isn't filled          */
+    struct Pixaa    *pixaa;        /*!< instances for each class; unbordered */
+    struct Pixa     *pixat;        /*!< templates for each class; bordered   */
+                                   /*!< and not dilated                      */
+    struct Pixa     *pixatd;       /*!< templates for each class; bordered   */
+                                   /*!< and dilated                          */
+    struct L_DnaHash *dahash;      /*!< Hash table to find templates by size */
+    struct Numa     *nafgt;        /*!< fg areas of undilated templates;     */
+                                   /*!< only used for rank < 1.0             */
+    struct Pta      *ptac;         /*!< centroids of all bordered cc         */
+    struct Pta      *ptact;        /*!< centroids of all bordered template cc */
+    struct Numa     *naclass;      /*!< array of class ids for each component */
+    struct Numa     *napage;       /*!< array of page nums for each component */
+    struct Pta      *ptaul;        /*!< array of UL corners at which the     */
+                                   /*!< template is to be placed for each    */
+                                   /*!< component                            */
+    struct Pta      *ptall;        /*!< similar to ptaul, but for LL corners */
+};
+typedef struct JbClasser  JBCLASSER;
+
+
+    /*!
+     * <pre>
+     * The JbData struct holds all the data required for
+     * the compressed jbig-type representation of a set of images.
+     * The data can be written to file, read back, and used
+     * to regenerate an approximate version of the original,
+     * which differs in two ways from the original:
+     *   (1) It uses a template image for each c.c. instead of the
+     *       original instance, for each occurrence on each page.
+     *   (2) It discards components with either a height or width larger
+     *       than the maximuma, given here by the lattice dimensions
+     *       used for storing the templates.
+     * </pre>
+     */
+struct JbData
+{
+    struct Pix      *pix;        /*!< template composite for all classes    */
+    l_int32          npages;     /*!< number of pages                       */
+    l_int32          w;          /*!< max width of original page images     */
+    l_int32          h;          /*!< max height of original page images    */
+    l_int32          nclass;     /*!< number of classes                     */
+    l_int32          latticew;   /*!< lattice width for template composite  */
+    l_int32          latticeh;   /*!< lattice height for template composite */
+    struct Numa     *naclass;    /*!< array of class ids for each component */
+    struct Numa     *napage;     /*!< array of page nums for each component */
+    struct Pta      *ptaul;      /*!< array of UL corners at which the      */
+                                 /*!< template is to be placed for each     */
+                                 /*!< component                             */
+};
+typedef struct JbData  JBDATA;
+
+
+    /*! Classifier methods */
+enum {
+   JB_RANKHAUS = 0,
+   JB_CORRELATION = 1
+};
+
+    /*! For jbGetComponents(): type of component to extract from images */
+enum {
+   JB_CONN_COMPS = 0,
+   JB_CHARACTERS = 1,
+   JB_WORDS = 2
+};
+
+    /*! These parameters are used for naming the two files
+     * in which the jbig2-like compressed data is stored.  */
+#define   JB_TEMPLATE_EXT      ".templates.png"
+#define   JB_DATA_EXT          ".data"
+
+
+#endif  /* LEPTONICA_JBCLASS_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/leptwin.h b/third_party/leptonica/uos/aarch64/include/leptonica/leptwin.h
new file mode 100644
index 00000000..451da6b6
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/leptwin.h
@@ -0,0 +1,45 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifdef _WIN32
+#ifndef  LEPTONICA_LEPTWIN_H
+#define  LEPTONICA_LEPTWIN_H
+
+#include "allheaders.h"
+#include <windows.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif  /* __cplusplus */
+
+LEPT_DLL extern HBITMAP pixGetWindowsHBITMAP( PIX *pixs );
+
+#ifdef __cplusplus
+}
+#endif  /* __cplusplus */
+
+#endif /* LEPTONICA_LEPTWIN_H */
+#endif /* _WIN32 */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/list.h b/third_party/leptonica/uos/aarch64/include/leptonica/list.h
new file mode 100644
index 00000000..d207e79f
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/list.h
@@ -0,0 +1,90 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+
+#ifndef  LEPTONICA_LIST_H
+#define  LEPTONICA_LIST_H
+
+/*!
+ * \file list.h
+ *
+ * <pre>
+ *       Cell for double-linked lists
+ *
+ *       This allows composition of a list of cells with
+ *           prev, next and data pointers.  Generic data
+ *           structures hang on the list cell data pointers.
+ *
+ *       The list is not circular because that would add much
+ *           complexity in traversing the list under general
+ *           conditions where list cells can be added and removed.
+ *           The only disadvantage of not having the head point to
+ *           the last cell is that the list must be traversed to
+ *           find its tail.  However, this traversal is fast, and
+ *           the listRemoveFromTail() function updates the tail
+ *           so there is no searching overhead with repeated use.
+ *
+ *       The list macros are used to run through a list, and their
+ *       use is encouraged.  They are invoked, e.g., as
+ *
+ *             DLLIST  *head, *elem;
+ *             ...
+ *             L_BEGIN_LIST_FORWARD(head, elem)
+ *                 <do something with elem and/or elem->data >
+ *             L_END_LIST
+ * </pre>
+ */
+
+struct DoubleLinkedList
+{
+    struct DoubleLinkedList    *prev;
+    struct DoubleLinkedList    *next;
+    void                       *data;
+};
+typedef struct DoubleLinkedList    DLLIST;
+
+
+    /*!  Simple list traverse macro - forward */
+#define L_BEGIN_LIST_FORWARD(head, element) \
+        { \
+        DLLIST   *_leptvar_nextelem_; \
+        for ((element) = (head); (element); (element) = _leptvar_nextelem_) { \
+            _leptvar_nextelem_ = (element)->next;
+
+
+    /*!  Simple list traverse macro - reverse */
+#define L_BEGIN_LIST_REVERSE(tail, element) \
+        { \
+        DLLIST   *_leptvar_prevelem_; \
+        for ((element) = (tail); (element); (element) = _leptvar_prevelem_) { \
+            _leptvar_prevelem_ = (element)->prev;
+
+
+    /*!  Simple list traverse macro - end of a list traverse */
+#define L_END_LIST    }}
+
+
+#endif  /* LEPTONICA_LIST_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/morph.h b/third_party/leptonica/uos/aarch64/include/leptonica/morph.h
new file mode 100644
index 00000000..c0cd7987
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/morph.h
@@ -0,0 +1,248 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_MORPH_H
+#define  LEPTONICA_MORPH_H
+
+/*!
+ * \file morph.h
+ *
+ * <pre>
+ *  Contains the following structs:
+ *      struct Sel
+ *      struct Sela
+ *      struct Kernel
+ *
+ *  Contains definitions for:
+ *      morphological b.c. flags
+ *      structuring element types
+ *      runlength flags for granulometry
+ *      direction flags for grayscale morphology
+ *      morphological operation flags
+ *      standard border size
+ *      grayscale intensity scaling flags
+ *      morphological tophat flags
+ *      arithmetic and logical operator flags
+ *      grayscale morphology selection flags
+ *      distance function b.c. flags
+ *      image comparison flags
+ *      color content flags
+ * </pre>
+ */
+
+/*-------------------------------------------------------------------------*
+ *                             Sel and Sel array                           *
+ *-------------------------------------------------------------------------*/
+#define  SEL_VERSION_NUMBER    1
+
+/*! Selection */
+struct Sel
+{
+    l_int32       sy;        /*!< sel height                               */
+    l_int32       sx;        /*!< sel width                                */
+    l_int32       cy;        /*!< y location of sel origin                 */
+    l_int32       cx;        /*!< x location of sel origin                 */
+    l_int32     **data;      /*!< {0,1,2}; data[i][j] in [row][col] order  */
+    char         *name;      /*!< used to find sel by name                 */
+};
+typedef struct Sel SEL;
+
+/*! Array of Sel */
+struct Sela
+{
+    l_int32          n;       /*!< number of sel actually stored           */
+    l_int32          nalloc;  /*!< size of allocated ptr array             */
+    struct Sel     **sel;     /*!< sel ptr array                           */
+};
+typedef struct Sela SELA;
+
+
+/*-------------------------------------------------------------------------*
+ *                                 Kernel                                  *
+ *-------------------------------------------------------------------------*/
+#define  KERNEL_VERSION_NUMBER    2
+
+/*! Kernel */
+struct L_Kernel
+{
+    l_int32       sy;        /*!< kernel height                            */
+    l_int32       sx;        /*!< kernel width                             */
+    l_int32       cy;        /*!< y location of kernel origin              */
+    l_int32       cx;        /*!< x location of kernel origin              */
+    l_float32   **data;      /*!< data[i][j] in [row][col] order           */
+};
+typedef struct L_Kernel  L_KERNEL;
+
+
+/*-------------------------------------------------------------------------*
+ *                 Morphological boundary condition flags                  *
+ *                                                                         *
+ *  Two types of boundary condition for erosion.                           *
+ *  The global variable MORPH_BC takes on one of these two values.         *
+ *  See notes in morph.c for usage.                                        *
+ *-------------------------------------------------------------------------*/
+
+/*! Morphological boundary condition flags */
+enum {
+    SYMMETRIC_MORPH_BC = 0,
+    ASYMMETRIC_MORPH_BC = 1
+};
+
+/*-------------------------------------------------------------------------*
+ *                        Structuring element types                        *
+ *-------------------------------------------------------------------------*/
+
+/*! Structuring element types */
+enum {
+    SEL_DONT_CARE  = 0,
+    SEL_HIT        = 1,
+    SEL_MISS       = 2
+};
+
+/*-------------------------------------------------------------------------*
+ *                  Runlength flags for granulometry                       *
+ *-------------------------------------------------------------------------*/
+
+/*! Runlength flags for granulometry */
+enum {
+    L_RUN_OFF = 0,
+    L_RUN_ON  = 1
+};
+
+/*-------------------------------------------------------------------------*
+ *         Direction flags for grayscale morphology, granulometry,         *
+ *                 composable Sels, convolution, etc.                      *
+ *-------------------------------------------------------------------------*/
+
+/*! Direction flags */
+enum {
+    L_HORIZ            = 1,
+    L_VERT             = 2,
+    L_BOTH_DIRECTIONS  = 3
+};
+
+/*-------------------------------------------------------------------------*
+ *                   Morphological operation flags                         *
+ *-------------------------------------------------------------------------*/
+
+/*! Morphological operation flags */
+enum {
+    L_MORPH_DILATE    = 1,
+    L_MORPH_ERODE     = 2,
+    L_MORPH_OPEN      = 3,
+    L_MORPH_CLOSE     = 4,
+    L_MORPH_HMT       = 5
+};
+
+/*-------------------------------------------------------------------------*
+ *                    Grayscale intensity scaling flags                    *
+ *-------------------------------------------------------------------------*/
+
+/*! Grayscale intensity scaling flags */
+enum {
+    L_LINEAR_SCALE  = 1,
+    L_LOG_SCALE     = 2
+};
+
+/*-------------------------------------------------------------------------*
+ *                      Morphological tophat flags                         *
+ *-------------------------------------------------------------------------*/
+
+/*! Morphological tophat flags */
+enum {
+    L_TOPHAT_WHITE = 0,
+    L_TOPHAT_BLACK = 1
+};
+
+/*-------------------------------------------------------------------------*
+ *                Arithmetic and logical operator flags                    *
+ *                 (use on grayscale images and Numas)                     *
+ *-------------------------------------------------------------------------*/
+
+/*! Arithmetic and logical operator flags */
+enum {
+    L_ARITH_ADD       = 1,
+    L_ARITH_SUBTRACT  = 2,
+    L_ARITH_MULTIPLY  = 3,   /* on numas only */
+    L_ARITH_DIVIDE    = 4,   /* on numas only */
+    L_UNION           = 5,   /* on numas only */
+    L_INTERSECTION    = 6,   /* on numas only */
+    L_SUBTRACTION     = 7,   /* on numas only */
+    L_EXCLUSIVE_OR    = 8    /* on numas only */
+};
+
+/*-------------------------------------------------------------------------*
+ *                        Min/max selection flags                          *
+ *-------------------------------------------------------------------------*/
+
+/*! Min/max selection flags */
+enum {
+    L_CHOOSE_MIN = 1,         /* useful in a downscaling "erosion"       */
+    L_CHOOSE_MAX = 2,         /* useful in a downscaling "dilation"      */
+    L_CHOOSE_MAXDIFF = 3,     /* useful in a downscaling contrast        */
+    L_CHOOSE_MIN_BOOST = 4,   /* use a modification of the min value     */
+    L_CHOOSE_MAX_BOOST = 5    /* use a modification of the max value     */
+};
+
+/*-------------------------------------------------------------------------*
+ *                    Distance function b.c. flags                         *
+ *-------------------------------------------------------------------------*/
+
+/*! Distance function b.c. flags */
+enum {
+    L_BOUNDARY_BG = 1,  /* assume bg outside image */
+    L_BOUNDARY_FG = 2   /* assume fg outside image */
+};
+
+/*-------------------------------------------------------------------------*
+ *                         Image comparison flags                          *
+ *-------------------------------------------------------------------------*/
+
+/*! Image comparison flags */
+enum {
+    L_COMPARE_XOR = 1,
+    L_COMPARE_SUBTRACT = 2,
+    L_COMPARE_ABS_DIFF = 3
+};
+
+/*-------------------------------------------------------------------------*
+ *                          Color content flags                            *
+ *-------------------------------------------------------------------------*/
+
+/*! Color content flags */
+enum {
+    L_MAX_DIFF_FROM_AVERAGE_2 = 1,
+    L_MAX_MIN_DIFF_FROM_2 = 2,
+    L_MAX_DIFF = 3
+};
+
+/*-------------------------------------------------------------------------*
+ *    Standard size of border added around images for special processing   *
+ *-------------------------------------------------------------------------*/
+static const l_int32  ADDED_BORDER = 32;   /*!< pixels, not bits */
+
+
+#endif  /* LEPTONICA_MORPH_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/pix.h b/third_party/leptonica/uos/aarch64/include/leptonica/pix.h
new file mode 100644
index 00000000..c0dc5548
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/pix.h
@@ -0,0 +1,1284 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_PIX_H
+#define  LEPTONICA_PIX_H
+
+/*!
+ * \file pix.h
+ *
+ * <pre>
+ *   Valid image types in leptonica:
+ *       Pix: 1 bpp, with and without colormap
+ *       Pix: 2 bpp, with and without colormap
+ *       Pix: 4 bpp, with and without colormap
+ *       Pix: 8 bpp, with and without colormap
+ *       Pix: 16 bpp (1 spp)
+ *       Pix: 32 bpp (rgb, 3 spp)
+ *       Pix: 32 bpp (rgba, 4 spp)
+ *       FPix: 32 bpp float
+ *       DPix: 64 bpp double
+ *       Notes:
+ *          (1) The only valid Pix image type with alpha is rgba.
+ *              In particular, the alpha component is not used in
+ *              cmapped images.
+ *          (2) PixComp can hold any Pix with IFF_PNG encoding.
+ *
+ *   Contents:
+ *
+ *   (1) This file defines most of the image-related structs used in leptonica:
+ *         struct Pix
+ *         struct PixColormap
+ *         struct RGBA_Quad
+ *         struct Pixa
+ *         struct Pixaa
+ *         struct Box
+ *         struct Boxa
+ *         struct Boxaa
+ *         struct Pta
+ *         struct Ptaa
+ *         struct Pixacc
+ *         struct PixTiling
+ *         struct FPix
+ *         struct FPixa
+ *         struct DPix
+ *         struct PixComp
+ *         struct PixaComp
+ *
+ *   (2) This file has definitions for:
+ *         Colors for RGB
+ *         Colors for drawing boxes
+ *         Perceptual color weights
+ *         Colormap conversion flags
+ *         Rasterop bit flags
+ *         Structure access flags (for insert, copy, clone, copy-clone)
+ *         Sorting flags (by type and direction)
+ *         Blending flags
+ *         Graphics pixel setting flags
+ *         Size filtering flags
+ *         Color component selection flags
+ *         16-bit conversion flags
+ *         Rotation and shear flags
+ *         Affine transform order flags
+ *         Grayscale filling flags
+ *         Flags for setting to white or black
+ *         Flags for getting white or black pixel value
+ *         Flags for 8 and 16 bit pixel sums
+ *         Dithering flags
+ *         Distance flags
+ *         Statistical measures
+ *         Set selection flags
+ *         Text orientation flags
+ *         Edge orientation flags
+ *         Line orientation flags
+ *         Scan direction flags
+ *         Box size adjustment flags
+ *         Flags for selecting box boundaries from two choices
+ *         Handling overlapping bounding boxes in boxa
+ *         Flags for replacing invalid boxes
+ *         Horizontal warp
+ *         Pixel selection for resampling
+ *         Thinning flags
+ *         Runlength flags
+ *         Edge filter flags
+ *         Subpixel color component ordering in LCD display
+ *         HSV histogram flags
+ *         Region flags (inclusion, exclusion)
+ *         Flags for adding text to a pix
+ *         Flags for plotting on a pix
+ *         Flags for selecting display program
+ *         Flags in the 'special' pix field for non-default operations
+ *         Handling negative values in conversion to unsigned int
+ *         Relative to zero flags
+ *         Flags for adding or removing traling slash from string
+ *
+ *   (3) This file has typedefs for the pix allocator and deallocator functions
+ *         alloc_fn()
+ *         dealloc_fn().
+ * </pre>
+ */
+
+
+/*-------------------------------------------------------------------------*
+ *                              Basic Pix                                  *
+ *-------------------------------------------------------------------------*/
+    /* The 'special' field is by default 0, but it can hold integers
+     * that direct non-default actions, e.g., in png and jpeg I/O. */
+
+/*! Basic Pix */
+struct Pix
+{
+    l_uint32             w;         /*!< width in pixels                   */
+    l_uint32             h;         /*!< height in pixels                  */
+    l_uint32             d;         /*!< depth in bits (bpp)               */
+    l_uint32             spp;       /*!< number of samples per pixel       */
+    l_uint32             wpl;       /*!< 32-bit words/line                 */
+    l_uint32             refcount;  /*!< reference count (1 if no clones)  */
+    l_int32              xres;      /*!< image res (ppi) in x direction    */
+                                    /*!< (use 0 if unknown)                */
+    l_int32              yres;      /*!< image res (ppi) in y direction    */
+                                    /*!< (use 0 if unknown)                */
+    l_int32              informat;  /*!< input file format, IFF_*          */
+    l_int32              special;   /*!< special instructions for I/O, etc */
+    char                *text;      /*!< text string associated with pix   */
+    struct PixColormap  *colormap;  /*!< colormap (may be null)            */
+    l_uint32            *data;      /*!< the image data                    */
+};
+typedef struct Pix PIX;
+
+/*! Colormap of a Pix */
+struct PixColormap
+{
+    void            *array;   /*!< colormap table (array of RGBA_QUAD)     */
+    l_int32          depth;   /*!< of pix (1, 2, 4 or 8 bpp)               */
+    l_int32          nalloc;  /*!< number of color entries allocated       */
+    l_int32          n;       /*!< number of color entries used            */
+};
+typedef struct PixColormap  PIXCMAP;
+
+
+    /*! Colormap table entry (after the BMP version).
+     * Note that the BMP format stores the colormap table exactly
+     * as it appears here, with color samples being stored sequentially,
+     * in the order (b,g,r,a). */
+struct RGBA_Quad
+{
+    l_uint8     blue;         /*!< blue value */
+    l_uint8     green;        /*!< green value */
+    l_uint8     red;          /*!< red value */
+    l_uint8     alpha;        /*!< alpha value */
+};
+typedef struct RGBA_Quad  RGBA_QUAD;
+
+
+
+/*-------------------------------------------------------------------------*
+ *                             Colors for 32 bpp                           *
+ *-------------------------------------------------------------------------*/
+/* <pre>
+ *  Notes:
+ *      (1) These are the byte indices for colors in 32 bpp images.
+ *          They are used through the GET/SET_DATA_BYTE accessors.
+ *          The 4th byte, typically known as the "alpha channel" and used
+ *          for blending, is used to a small extent in leptonica.
+ *      (2) Do not change these values!  If you redefine them, functions
+ *          that have the shifts hardcoded for efficiency and conciseness
+ *          (instead of using the constants below) will break.  These
+ *          functions are labelled with "***"  next to their names at
+ *          the top of the files in which they are defined.
+ *      (3) The shifts to extract the red, green, blue and alpha components
+ *          from a 32 bit pixel are defined here.
+ * </pre>
+ */
+
+/*! Colors for 32 bpp */
+enum {
+    COLOR_RED = 0,        /*!< red color index in RGBA_QUAD    */
+    COLOR_GREEN = 1,      /*!< green color index in RGBA_QUAD  */
+    COLOR_BLUE = 2,       /*!< blue color index in RGBA_QUAD   */
+    L_ALPHA_CHANNEL = 3   /*!< alpha value index in RGBA_QUAD  */
+};
+
+static const l_int32  L_RED_SHIFT =
+       8 * (sizeof(l_uint32) - 1 - COLOR_RED);           /* 24 */
+static const l_int32  L_GREEN_SHIFT =
+       8 * (sizeof(l_uint32) - 1 - COLOR_GREEN);         /* 16 */
+static const l_int32  L_BLUE_SHIFT =
+       8 * (sizeof(l_uint32) - 1 - COLOR_BLUE);          /*  8 */
+static const l_int32  L_ALPHA_SHIFT =
+       8 * (sizeof(l_uint32) - 1 - L_ALPHA_CHANNEL);     /*  0 */
+
+
+/*-------------------------------------------------------------------------*
+ *                       Colors for drawing boxes                          *
+ *-------------------------------------------------------------------------*/
+/*! Colors for drawing boxes */
+enum {
+    L_DRAW_RED = 0,         /*!< draw in red                   */
+    L_DRAW_GREEN = 1,       /*!< draw in green                 */
+    L_DRAW_BLUE = 2,        /*!< draw in blue                  */
+    L_DRAW_SPECIFIED = 3,   /*!< draw specified color          */
+    L_DRAW_RGB = 4,         /*!< draw as sequence of r,g,b     */
+    L_DRAW_RANDOM = 5       /*!< draw randomly chosen colors   */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                       Perceptual color weights                          *
+ *-------------------------------------------------------------------------*/
+/* <pre>
+ *  Notes:
+ *      (1) These perceptual weighting factors are ad-hoc, but they do
+ *          add up to 1.  Unlike, for example, the weighting factors for
+ *          converting RGB to luminance, or more specifically to Y in the
+ *          YUV colorspace.  Those numbers come from the
+ *          International Telecommunications Union, via ITU-R.
+ * </pre>
+ */
+static const l_float32  L_RED_WEIGHT =   0.3;  /*!< Percept. weight for red   */
+static const l_float32  L_GREEN_WEIGHT = 0.5;  /*!< Percept. weight for green */
+static const l_float32  L_BLUE_WEIGHT =  0.2;  /*!< Percept. weight for blue  */
+
+
+/*-------------------------------------------------------------------------*
+ *                        Flags for colormap conversion                    *
+ *-------------------------------------------------------------------------*/
+/*! Flags for colormap conversion */
+enum {
+    REMOVE_CMAP_TO_BINARY = 0,     /*!< remove colormap for conv to 1 bpp  */
+    REMOVE_CMAP_TO_GRAYSCALE = 1,  /*!< remove colormap for conv to 8 bpp  */
+    REMOVE_CMAP_TO_FULL_COLOR = 2, /*!< remove colormap for conv to 32 bpp */
+    REMOVE_CMAP_WITH_ALPHA = 3,    /*!< remove colormap and alpha          */
+    REMOVE_CMAP_BASED_ON_SRC = 4   /*!< remove depending on src format     */
+};
+
+
+/*------------------------------------------------------------------------*
+ *!
+ * <pre>
+ * The following operation bit flags have been modified from
+ * Sun's pixrect.h.
+ *
+ * The 'op' in 'rasterop' is represented by an integer
+ * composed with Boolean functions using the set of five integers
+ * given below.  The integers, and the op codes resulting from
+ * boolean expressions on them, need only be in the range from 0 to 15.
+ * The function is applied on a per-pixel basis.
+ *
+ * Examples: the op code representing ORing the src and dest
+ * is computed using the bit OR, as PIX_SRC | PIX_DST;  the op
+ * code representing XORing src and dest is found from
+ * PIX_SRC ^ PIX_DST;  the op code representing ANDing src and dest
+ * is found from PIX_SRC & PIX_DST.  Note that
+ * PIX_NOT(PIX_CLR) = PIX_SET, and v.v., as they must be.
+ *
+ * We use the following set of definitions:
+ *
+ *      #define   PIX_SRC      0xc
+ *      #define   PIX_DST      0xa
+ *      #define   PIX_NOT(op)  (op) ^ 0xf
+ *      #define   PIX_CLR      0x0
+ *      #define   PIX_SET      0xf
+ *
+ * These definitions differ from Sun's, in that Sun left-shifted
+ * each value by 1 pixel, and used the least significant bit as a
+ * flag for the "pseudo-operation" of clipping.  We don't need
+ * this bit, because it is both efficient and safe ALWAYS to clip
+ * the rectangles to the src and dest images, which is what we do.
+ * See the notes in rop.h on the general choice of these bit flags.
+ *
+ * [If for some reason you need compatibility with Sun's xview package,
+ * you can adopt the original Sun definitions to avoid redefinition conflicts:
+ *
+ *      #define   PIX_SRC      (0xc << 1)
+ *      #define   PIX_DST      (0xa << 1)
+ *      #define   PIX_NOT(op)  ((op) ^ 0x1e)
+ *      #define   PIX_CLR      (0x0 << 1)
+ *      #define   PIX_SET      (0xf << 1)
+ * ]
+ *
+ * We have, for reference, the following 16 unique op flags:
+ *
+ *      PIX_CLR                           0000             0x0
+ *      PIX_SET                           1111             0xf
+ *      PIX_SRC                           1100             0xc
+ *      PIX_DST                           1010             0xa
+ *      PIX_NOT(PIX_SRC)                  0011             0x3
+ *      PIX_NOT(PIX_DST)                  0101             0x5
+ *      PIX_SRC | PIX_DST                 1110             0xe
+ *      PIX_SRC & PIX_DST                 1000             0x8
+ *      PIX_SRC ^ PIX_DST                 0110             0x6
+ *      PIX_NOT(PIX_SRC) | PIX_DST        1011             0xb
+ *      PIX_NOT(PIX_SRC) & PIX_DST        0010             0x2
+ *      PIX_SRC | PIX_NOT(PIX_DST)        1101             0xd
+ *      PIX_SRC & PIX_NOT(PIX_DST)        0100             0x4
+ *      PIX_NOT(PIX_SRC | PIX_DST)        0001             0x1
+ *      PIX_NOT(PIX_SRC & PIX_DST)        0111             0x7
+ *      PIX_NOT(PIX_SRC ^ PIX_DST)        1001             0x9
+ *
+ * </pre>
+ *-------------------------------------------------------------------------*/
+
+#define   PIX_SRC      (0xc)                      /*!< use source pixels      */
+#define   PIX_DST      (0xa)                      /*!< use destination pixels */
+#define   PIX_NOT(op)  ((op) ^ 0x0f)              /*!< invert operation %op   */
+#define   PIX_CLR      (0x0)                      /*!< clear pixels           */
+#define   PIX_SET      (0xf)                      /*!< set pixels             */
+
+#define   PIX_PAINT    (PIX_SRC | PIX_DST)        /*!< paint = src | dst      */
+#define   PIX_MASK     (PIX_SRC & PIX_DST)        /*!< mask = src & dst       */
+#define   PIX_SUBTRACT (PIX_DST & PIX_NOT(PIX_SRC)) /*!< subtract =           */
+                                                    /*!<    src & !dst        */
+#define   PIX_XOR      (PIX_SRC ^ PIX_DST)        /*!< xor = src ^ dst        */
+
+
+/*-------------------------------------------------------------------------*
+ * <pre>
+ *   Important Notes:
+ *
+ *       (1) The image data is stored in a single contiguous
+ *           array of l_uint32, into which the pixels are packed.
+ *           By "packed" we mean that there are no unused bits
+ *           between pixels, except for end-of-line padding to
+ *           satisfy item (2) below.
+ *
+ *       (2) Every image raster line begins on a 32-bit word
+ *           boundary within this array.
+ *
+ *       (3) Pix image data is stored in 32-bit units, with the
+ *           pixels ordered from left to right in the image being
+ *           stored in order from the MSB to LSB within the word,
+ *           for both big-endian and little-endian machines.
+ *           This is the natural ordering for big-endian machines,
+ *           as successive bytes are stored and fetched progressively
+ *           to the right.  However, for little-endians, when storing
+ *           we re-order the bytes from this byte stream order, and
+ *           reshuffle again for byte access on 32-bit entities.
+ *           So if the bytes come in sequence from left to right, we
+ *           store them on little-endians in byte order:
+ *                3 2 1 0 7 6 5 4 ...
+ *           This MSB to LSB ordering allows left and right shift
+ *           operations on 32 bit words to move the pixels properly.
+ *
+ *       (4) We use 32 bit pixels for both RGB and RGBA color images.
+ *           The A (alpha) byte is ignored in most leptonica functions
+ *           operating on color images.  Within each 4 byte pixel, the
+ *           colors are ordered from MSB to LSB, as follows:
+ *
+ *                |  MSB  |  2nd MSB  |  3rd MSB  |  LSB  |
+ *                   red      green       blue      alpha
+ *                    0         1           2         3   (big-endian)
+ *                    3         2           1         0   (little-endian)
+ *
+ *           Because we use MSB to LSB ordering within the 32-bit word,
+ *           the individual 8-bit samples can be accessed with
+ *           GET_DATA_BYTE and SET_DATA_BYTE macros, using the
+ *           (implicitly big-ending) ordering
+ *                 red:    byte 0  (MSB)
+ *                 green:  byte 1  (2nd MSB)
+ *                 blue:   byte 2  (3rd MSB)
+ *                 alpha:  byte 3  (LSB)
+ *
+ *           The specific color assignment is made in this file,
+ *           through the definitions of COLOR_RED, etc.  Then the R, G
+ *           B and A sample values can be retrieved using
+ *                 redval = GET_DATA_BYTE(&pixel, COLOR_RED);
+ *                 greenval = GET_DATA_BYTE(&pixel, COLOR_GREEN);
+ *                 blueval = GET_DATA_BYTE(&pixel, COLOR_BLUE);
+ *                 alphaval = GET_DATA_BYTE(&pixel, L_ALPHA_CHANNEL);
+ *           and they can be set with
+ *                 SET_DATA_BYTE(&pixel, COLOR_RED, redval);
+ *                 SET_DATA_BYTE(&pixel, COLOR_GREEN, greenval);
+ *                 SET_DATA_BYTE(&pixel, COLOR_BLUE, blueval);
+ *                 SET_DATA_BYTE(&pixel, L_ALPHA_CHANNEL, alphaval);
+ *
+ *           For extra speed we extract these components directly
+ *           by shifting and masking, explicitly using the values in
+ *           L_RED_SHIFT, etc.:
+ *                 (pixel32 >> L_RED_SHIFT) & 0xff;         (red)
+ *                 (pixel32 >> L_GREEN_SHIFT) & 0xff;       (green)
+ *                 (pixel32 >> L_BLUE_SHIFT) & 0xff;        (blue)
+ *                 (pixel32 >> L_ALPHA_SHIFT) & 0xff;       (alpha)
+ *           All these operations work properly on both big- and little-endians.
+ *
+ *           For a few situations, these color shift values are hard-coded.
+ *           Changing the RGB color component ordering through the assignments
+ *           in this file will cause functions marked with "***" to fail.
+ *
+ *       (5) A reference count is held within each pix, giving the
+ *           number of ptrs to the pix.  When a pixClone() call
+ *           is made, the ref count is increased by 1, and
+ *           when a pixDestroy() call is made, the reference count
+ *           of the pix is decremented.  The pix is only destroyed
+ *           when the reference count goes to zero.
+ *
+ *       (6) The version numbers (below) are used in the serialization
+ *           of these data structures.  They are placed in the files,
+ *           and rarely (if ever) change.  Provision is currently made for
+ *           backward compatibility in reading from boxaa version 2.
+ *
+ *       (7) The serialization dependencies are as follows:
+ *               pixaa  :  pixa  :  boxa
+ *               boxaa  :  boxa
+ *           So, for example, pixaa and boxaa can be changed without
+ *           forcing a change in pixa or boxa.  However, if pixa is
+ *           changed, it forces a change in pixaa, and if boxa is
+ *           changed, if forces a change in the other three.
+ *           We define four version numbers:
+ *               PIXAA_VERSION_NUMBER
+ *               PIXA_VERSION_NUMBER
+ *               BOXAA_VERSION_NUMBER
+ *               BOXA_VERSION_NUMBER
+ * </pre>
+ *-------------------------------------------------------------------------*/
+
+
+
+/*-------------------------------------------------------------------------*
+ *                              Array of pix                               *
+ *-------------------------------------------------------------------------*/
+
+    /*  Serialization for primary data structures */
+#define  PIXAA_VERSION_NUMBER      2  /*!< Version for Pixaa serialization */
+#define  PIXA_VERSION_NUMBER       2  /*!< Version for Pixa serialization  */
+#define  BOXA_VERSION_NUMBER       2  /*!< Version for Boxa serialization  */
+#define  BOXAA_VERSION_NUMBER      3  /*!< Version for Boxaa serialization */
+
+/*! Array of pix */
+struct Pixa
+{
+    l_int32             n;          /*!< number of Pix in ptr array        */
+    l_int32             nalloc;     /*!< number of Pix ptrs allocated      */
+    l_uint32            refcount;   /*!< reference count (1 if no clones)  */
+    struct Pix        **pix;        /*!< the array of ptrs to pix          */
+    struct Boxa        *boxa;       /*!< array of boxes                    */
+};
+typedef struct Pixa PIXA;
+
+/*! Array of arrays of pix */
+struct Pixaa
+{
+    l_int32             n;          /*!< number of Pixa in ptr array       */
+    l_int32             nalloc;     /*!< number of Pixa ptrs allocated     */
+    struct Pixa       **pixa;       /*!< array of ptrs to pixa             */
+    struct Boxa        *boxa;       /*!< array of boxes                    */
+};
+typedef struct Pixaa PIXAA;
+
+
+/*-------------------------------------------------------------------------*
+ *                    Basic rectangle and rectangle arrays                 *
+ *-------------------------------------------------------------------------*/
+
+/*! Basic rectangle */
+struct Box
+{
+    l_int32            x;           /*!< left coordinate                   */
+    l_int32            y;           /*!< top coordinate                    */
+    l_int32            w;           /*!< box width                         */
+    l_int32            h;           /*!< box height                        */
+    l_uint32           refcount;    /*!< reference count (1 if no clones)  */
+
+};
+typedef struct Box    BOX;
+
+/*! Array of Box */
+struct Boxa
+{
+    l_int32            n;           /*!< number of box in ptr array        */
+    l_int32            nalloc;      /*!< number of box ptrs allocated      */
+    l_uint32           refcount;    /*!< reference count (1 if no clones)  */
+    struct Box       **box;         /*!< box ptr array                     */
+};
+typedef struct Boxa  BOXA;
+
+/*! Array of Boxa */
+struct Boxaa
+{
+    l_int32            n;           /*!< number of boxa in ptr array       */
+    l_int32            nalloc;      /*!< number of boxa ptrs allocated     */
+    struct Boxa      **boxa;        /*!< boxa ptr array                    */
+};
+typedef struct Boxaa  BOXAA;
+
+
+/*-------------------------------------------------------------------------*
+ *                               Array of points                           *
+ *-------------------------------------------------------------------------*/
+#define  PTA_VERSION_NUMBER      1  /*!< Version for Pta serialization     */
+
+/*! Array of points */
+struct Pta
+{
+    l_int32            n;           /*!< actual number of pts              */
+    l_int32            nalloc;      /*!< size of allocated arrays          */
+    l_uint32           refcount;    /*!< reference count (1 if no clones)  */
+    l_float32         *x, *y;       /*!< arrays of floats                  */
+};
+typedef struct Pta PTA;
+
+
+/*-------------------------------------------------------------------------*
+ *                              Array of Pta                               *
+ *-------------------------------------------------------------------------*/
+
+/*! Array of Pta */
+struct Ptaa
+{
+    l_int32              n;         /*!< number of pta in ptr array        */
+    l_int32              nalloc;    /*!< number of pta ptrs allocated      */
+    struct Pta         **pta;       /*!< pta ptr array                     */
+};
+typedef struct Ptaa PTAA;
+
+
+/*-------------------------------------------------------------------------*
+ *                       Pix accumulator container                         *
+ *-------------------------------------------------------------------------*/
+
+/*! Pix accumulator container */
+struct Pixacc
+{
+    l_int32             w;          /*!< array width                       */
+    l_int32             h;          /*!< array height                      */
+    l_int32             offset;     /*!< used to allow negative            */
+                                    /*!< intermediate results              */
+    struct Pix         *pix;        /*!< the 32 bit accumulator pix        */
+};
+typedef struct Pixacc PIXACC;
+
+
+/*-------------------------------------------------------------------------*
+ *                              Pix tiling                                 *
+ *-------------------------------------------------------------------------*/
+
+/*! Pix tiling */
+struct PixTiling
+{
+    struct Pix          *pix;       /*!< input pix (a clone)               */
+    l_int32              nx;        /*!< number of tiles horizontally      */
+    l_int32              ny;        /*!< number of tiles vertically        */
+    l_int32              w;         /*!< tile width                        */
+    l_int32              h;         /*!< tile height                       */
+    l_int32              xoverlap;  /*!< overlap on left and right         */
+    l_int32              yoverlap;  /*!< overlap on top and bottom         */
+    l_int32              strip;     /*!< strip for paint; default is TRUE  */
+};
+typedef struct PixTiling PIXTILING;
+
+
+/*-------------------------------------------------------------------------*
+ *                       FPix: pix with float array                        *
+ *-------------------------------------------------------------------------*/
+#define  FPIX_VERSION_NUMBER      2 /*!< Version for FPix serialization    */
+
+/*! Pix with float array */
+struct FPix
+{
+    l_int32              w;         /*!< width in pixels                   */
+    l_int32              h;         /*!< height in pixels                  */
+    l_int32              wpl;       /*!< 32-bit words/line                 */
+    l_uint32             refcount;  /*!< reference count (1 if no clones)  */
+    l_int32              xres;      /*!< image res (ppi) in x direction    */
+                                    /*!< (use 0 if unknown)                */
+    l_int32              yres;      /*!< image res (ppi) in y direction    */
+                                    /*!< (use 0 if unknown)                */
+    l_float32           *data;      /*!< the float image data              */
+};
+typedef struct FPix FPIX;
+
+/*! Array of FPix */
+struct FPixa
+{
+    l_int32             n;          /*!< number of fpix in ptr array       */
+    l_int32             nalloc;     /*!< number of fpix ptrs allocated     */
+    l_uint32            refcount;   /*!< reference count (1 if no clones)  */
+    struct FPix       **fpix;       /*!< the array of ptrs to fpix         */
+};
+typedef struct FPixa FPIXA;
+
+
+/*-------------------------------------------------------------------------*
+ *                       DPix: pix with double array                       *
+ *-------------------------------------------------------------------------*/
+#define  DPIX_VERSION_NUMBER      2 /*!< Version for DPix serialization    */
+
+/*! Pix with double array */
+struct DPix
+{
+    l_int32              w;         /*!< width in pixels                   */
+    l_int32              h;         /*!< height in pixels                  */
+    l_int32              wpl;       /*!< 32-bit words/line                 */
+    l_uint32             refcount;  /*!< reference count (1 if no clones)  */
+    l_int32              xres;      /*!< image res (ppi) in x direction    */
+                                    /*!< (use 0 if unknown)                */
+    l_int32              yres;      /*!< image res (ppi) in y direction    */
+                                    /*!< (use 0 if unknown)                */
+    l_float64           *data;      /*!< the double image data             */
+};
+typedef struct DPix DPIX;
+
+
+/*-------------------------------------------------------------------------*
+ *                        PixComp: compressed pix                          *
+ *-------------------------------------------------------------------------*/
+
+/*! Compressed Pix */
+struct PixComp
+{
+    l_int32              w;         /*!< width in pixels                   */
+    l_int32              h;         /*!< height in pixels                  */
+    l_int32              d;         /*!< depth in bits                     */
+    l_int32              xres;      /*!< image res (ppi) in x direction    */
+                                    /*!<   (use 0 if unknown)              */
+    l_int32              yres;      /*!< image res (ppi) in y direction    */
+                                    /*!<   (use 0 if unknown)              */
+    l_int32              comptype;  /*!< compressed format (IFF_TIFF_G4,   */
+                                    /*!<   IFF_PNG, IFF_JFIF_JPEG)         */
+    char                *text;      /*!< text string associated with pix   */
+    l_int32              cmapflag;  /*!< flag (1 for cmap, 0 otherwise)    */
+    l_uint8             *data;      /*!< the compressed image data         */
+    size_t               size;      /*!< size of the data array            */
+};
+typedef struct PixComp PIXC;
+
+
+/*-------------------------------------------------------------------------*
+ *                     PixaComp: array of compressed pix                   *
+ *-------------------------------------------------------------------------*/
+#define  PIXACOMP_VERSION_NUMBER 2  /*!< Version for PixaComp serialization */
+
+/*! Array of compressed pix */
+struct PixaComp
+{
+    l_int32              n;         /*!< number of PixComp in ptr array    */
+    l_int32              nalloc;    /*!< number of PixComp ptrs allocated  */
+    l_int32              offset;    /*!< indexing offset into ptr array    */
+    struct PixComp     **pixc;      /*!< the array of ptrs to PixComp      */
+    struct Boxa         *boxa;      /*!< array of boxes                    */
+};
+typedef struct PixaComp PIXAC;
+
+
+/*-------------------------------------------------------------------------*
+ *                         Access and storage flags                        *
+ *-------------------------------------------------------------------------*/
+/*
+ * <pre>
+ *  For Pix, Box, Pta and Numa, there are 3 standard methods for handling
+ *  the retrieval or insertion of a struct:
+ *     (1) direct insertion (Don't do this if there is another handle
+ *                           somewhere to this same struct!)
+ *     (2) copy (Always safe, sets up a refcount of 1 on the new object.
+ *               Can be undesirable if very large, such as an image or
+ *               an array of images.)
+ *     (3) clone (Makes another handle to the same struct, and bumps the
+ *                refcount up by 1.  Safe to do unless you're changing
+ *                data through one of the handles but don't want those
+ *                changes to be seen by the other handle.)
+ *
+ *  For Pixa and Boxa, which are structs that hold an array of clonable
+ *  structs, there is an additional method:
+ *     (4) copy-clone (Makes a new higher-level struct with a refcount
+ *                     of 1, but clones all the structs in the array.)
+ *
+ *  Unlike the other structs, when retrieving a string from an Sarray,
+ *  you are allowed to get a handle without a copy or clone (i.e., that
+ *  you don't own!).  You must not free or insert such a string!
+ *  Specifically, for an Sarray, the copyflag for retrieval is either:
+ *         L_COPY or L_NOCOPY
+ *  and for insertion, the copyflag is either:
+ *         L_COPY or one of {L_INSERT , L_NOCOPY} (the latter are equivalent
+ *                                                 for insertion))
+ * </pre>
+ */
+
+/*! Access and storage flags */
+enum {
+    L_NOCOPY = 0,     /*!< do not copy the object; do not delete the ptr  */
+    L_COPY = 1,       /*!< make/use a copy of the object                  */
+    L_CLONE = 2,      /*!< make/use clone (ref count) of the object       */
+    L_COPY_CLONE = 3  /*!< make a new object and fill each object in the  */
+                      /*!< array(s) with clones                           */
+};
+static const l_int32  L_INSERT = 0;  /*!< stuff it in; no copy or clone   */
+
+
+/*----------------------------------------------------------------------------*
+ *                              Sort flags                                    *
+ *----------------------------------------------------------------------------*/
+
+/*! Sort mode flags */
+enum {
+    L_SHELL_SORT = 1,            /*!< use shell sort                        */
+    L_BIN_SORT = 2               /*!< use bin sort                          */
+};
+
+/*! Sort order flags */
+enum {
+    L_SORT_INCREASING = 1,       /*!< sort in increasing order              */
+    L_SORT_DECREASING = 2        /*!< sort in decreasing order              */
+};
+
+/*! Sort type flags */
+enum {
+    L_SORT_BY_X = 1,             /*!< sort box or c.c. by left edge location  */
+    L_SORT_BY_Y = 2,             /*!< sort box or c.c. by top edge location   */
+    L_SORT_BY_RIGHT = 3,         /*!< sort box or c.c. by right edge location */
+    L_SORT_BY_BOT = 4,           /*!< sort box or c.c. by bot edge location   */
+    L_SORT_BY_WIDTH = 5,         /*!< sort box or c.c. by width               */
+    L_SORT_BY_HEIGHT = 6,        /*!< sort box or c.c. by height              */
+    L_SORT_BY_MIN_DIMENSION = 7, /*!< sort box or c.c. by min dimension       */
+    L_SORT_BY_MAX_DIMENSION = 8, /*!< sort box or c.c. by max dimension       */
+    L_SORT_BY_PERIMETER = 9,     /*!< sort box or c.c. by perimeter           */
+    L_SORT_BY_AREA = 10,         /*!< sort box or c.c. by area                */
+    L_SORT_BY_ASPECT_RATIO = 11  /*!< sort box or c.c. by width/height ratio  */
+};
+
+
+/*---------------------------------------------------------------------------*
+ *                             Blend flags                                   *
+ *---------------------------------------------------------------------------*/
+
+/*! Blend flags */
+enum {
+    L_BLEND_WITH_INVERSE = 1,     /*!< add some of src inverse to itself     */
+    L_BLEND_TO_WHITE = 2,         /*!< shift src colors towards white        */
+    L_BLEND_TO_BLACK = 3,         /*!< shift src colors towards black        */
+    L_BLEND_GRAY = 4,             /*!< blend src directly with blender       */
+    L_BLEND_GRAY_WITH_INVERSE = 5 /*!< add amount of src inverse to itself,  */
+                                  /*!< based on blender pix value            */
+};
+
+enum {
+    L_PAINT_LIGHT = 1,            /*!< colorize non-black pixels             */
+    L_PAINT_DARK = 2              /*!< colorize non-white pixels             */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                        Graphics pixel setting                           *
+ *-------------------------------------------------------------------------*/
+
+/*! Graphics pixel setting */
+enum {
+    L_SET_PIXELS = 1,           /*!< set all bits in each pixel to 1       */
+    L_CLEAR_PIXELS = 2,         /*!< set all bits in each pixel to 0       */
+    L_FLIP_PIXELS = 3           /*!< flip all bits in each pixel           */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                     Size and location filter flags                      *
+ *-------------------------------------------------------------------------*/
+
+/*! Location filter flags */
+enum {
+    L_SELECT_WIDTH = 1,         /*!< width must satisfy constraint         */
+    L_SELECT_HEIGHT = 2,        /*!< height must satisfy constraint        */
+    L_SELECT_XVAL = 3,          /*!< x value satisfy constraint            */
+    L_SELECT_YVAL = 4,          /*!< y value must satisfy constraint       */
+    L_SELECT_IF_EITHER = 5,     /*!< either width or height (or xval       */
+                                /*!< or yval) can satisfy                  */
+    L_SELECT_IF_BOTH = 6        /*!< both width and height (or xval        */
+                                /*!< and yval must satisfy                 */
+};
+
+/*! Size filter flags */
+enum {
+    L_SELECT_IF_LT = 1,         /*!< save if value is less than threshold  */
+    L_SELECT_IF_GT = 2,         /*!< save if value is more than threshold  */
+    L_SELECT_IF_LTE = 3,        /*!< save if value is <= to the threshold  */
+    L_SELECT_IF_GTE = 4         /*!< save if value is >= to the threshold  */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                    Color component selection flags                      *
+ *-------------------------------------------------------------------------*/
+
+/*! Color component selection flags */
+enum {
+    L_SELECT_RED = 1,           /*!< use red component                     */
+    L_SELECT_GREEN = 2,         /*!< use green component                   */
+    L_SELECT_BLUE = 3,          /*!< use blue component                    */
+    L_SELECT_MIN = 4,           /*!< use min color component               */
+    L_SELECT_MAX = 5,           /*!< use max color component               */
+    L_SELECT_AVERAGE = 6,       /*!< use average of color components       */
+    L_SELECT_HUE = 7,           /*!< use hue value (in HSV color space)    */
+    L_SELECT_SATURATION = 8     /*!< use saturation value (in HSV space)   */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                         16-bit conversion flags                         *
+ *-------------------------------------------------------------------------*/
+
+/*! 16-bit conversion flags */
+enum {
+    L_LS_BYTE = 1,              /*!< use LSB                               */
+    L_MS_BYTE = 2,              /*!< use MSB                               */
+    L_AUTO_BYTE = 3,            /*!< use LSB if max(val) < 256; else MSB   */
+    L_CLIP_TO_FF = 4,           /*!< use max(val, 255)                     */
+    L_LS_TWO_BYTES = 5,         /*!< use two LSB                           */
+    L_MS_TWO_BYTES = 6,         /*!< use two MSB                           */
+    L_CLIP_TO_FFFF = 7          /*!< use max(val, 65535)                   */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                        Rotate and shear flags                           *
+ *-------------------------------------------------------------------------*/
+
+/*! Rotate flags */
+enum {
+    L_ROTATE_AREA_MAP = 1,     /*!< use area map rotation, if possible     */
+    L_ROTATE_SHEAR = 2,        /*!< use shear rotation                     */
+    L_ROTATE_SAMPLING = 3      /*!< use sampling                           */
+};
+
+/*! Background flags */
+enum {
+    L_BRING_IN_WHITE = 1,      /*!< bring in white pixels from the outside */
+    L_BRING_IN_BLACK = 2       /*!< bring in black pixels from the outside */
+};
+
+/*! Shear flags */
+enum {
+    L_SHEAR_ABOUT_CORNER = 1,  /*!< shear image about UL corner            */
+    L_SHEAR_ABOUT_CENTER = 2   /*!< shear image about center               */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                     Affine transform order flags                        *
+ *-------------------------------------------------------------------------*/
+
+/*! Affine transform order flags */
+enum {
+    L_TR_SC_RO = 1,            /*!< translate, scale, rotate               */
+    L_SC_RO_TR = 2,            /*!< scale, rotate, translate               */
+    L_RO_TR_SC = 3,            /*!< rotate, translate, scale               */
+    L_TR_RO_SC = 4,            /*!< translate, rotate, scale               */
+    L_RO_SC_TR = 5,            /*!< rotate, scale, translate               */
+    L_SC_TR_RO = 6             /*!< scale, translate, rotate               */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                       Grayscale filling flags                           *
+ *-------------------------------------------------------------------------*/
+
+/*! Grayscale filling flags */
+enum {
+    L_FILL_WHITE = 1,         /*!< fill white pixels (e.g, in fg map)      */
+    L_FILL_BLACK = 2          /*!< fill black pixels (e.g., in bg map)     */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                   Flags for setting to white or black                   *
+ *-------------------------------------------------------------------------*/
+
+/*! Flags for setting to white or black */
+enum {
+    L_SET_WHITE = 1,         /*!< set pixels to white                      */
+    L_SET_BLACK = 2          /*!< set pixels to black                      */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                  Flags for getting white or black value                 *
+ *-------------------------------------------------------------------------*/
+
+/*! Flags for getting white or black value */
+enum {
+    L_GET_WHITE_VAL = 1,     /*!< get white pixel value                    */
+    L_GET_BLACK_VAL = 2      /*!< get black pixel value                    */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                  Flags for 8 bit and 16 bit pixel sums                  *
+ *-------------------------------------------------------------------------*/
+
+/*! Flags for 8 bit and 16 bit pixel sums */
+enum {
+    L_WHITE_IS_MAX = 1, /*!< white pixels are 0xff or 0xffff; black are 0  */
+    L_BLACK_IS_MAX = 2  /*!< black pixels are 0xff or 0xffff; white are 0  */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                           Dither parameters                             *
+ *         If within this grayscale distance from black or white,          *
+ *         do not propagate excess or deficit to neighboring pixels.       *
+ *-------------------------------------------------------------------------*/
+
+/*! Dither parameters */
+enum {
+    DEFAULT_CLIP_LOWER_1 = 10, /*!< dist to black with no prop; 1 bpp      */
+    DEFAULT_CLIP_UPPER_1 = 10, /*!< dist to black with no prop; 1 bpp      */
+    DEFAULT_CLIP_LOWER_2 = 5,  /*!< dist to black with no prop; 2 bpp      */
+    DEFAULT_CLIP_UPPER_2 = 5   /*!< dist to black with no prop; 2 bpp      */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                             Distance flags                              *
+ *-------------------------------------------------------------------------*/
+
+/*! Distance flags */
+enum {
+    L_MANHATTAN_DISTANCE = 1,  /*!< L1 distance (e.g., in color space)     */
+    L_EUCLIDEAN_DISTANCE = 2   /*!< L2 distance                            */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                         Statistical measures                            *
+ *-------------------------------------------------------------------------*/
+
+/*! Statistical measures */
+enum {
+    L_MEAN_ABSVAL = 1,         /*!< average of abs values                  */
+    L_MEDIAN_VAL = 2,          /*!< median value of set                    */
+    L_MODE_VAL = 3,            /*!< mode value of set                      */
+    L_MODE_COUNT = 4,          /*!< mode count of set                      */
+    L_ROOT_MEAN_SQUARE = 5,    /*!< rms of values                          */
+    L_STANDARD_DEVIATION = 6,  /*!< standard deviation from mean           */
+    L_VARIANCE = 7             /*!< variance of values                     */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                          Set selection flags                            *
+ *-------------------------------------------------------------------------*/
+
+/*! Set selection flags */
+enum {
+    L_CHOOSE_CONSECUTIVE = 1,  /*!< select 'n' consecutive                 */
+    L_CHOOSE_SKIP_BY = 2       /*!< select at intervals of 'n'             */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                         Text orientation flags                          *
+ *-------------------------------------------------------------------------*/
+
+/*! Text orientation flags */
+enum {
+    L_TEXT_ORIENT_UNKNOWN = 0, /*!< low confidence on text orientation     */
+    L_TEXT_ORIENT_UP = 1,      /*!< portrait, text rightside-up            */
+    L_TEXT_ORIENT_LEFT = 2,    /*!< landscape, text up to left             */
+    L_TEXT_ORIENT_DOWN = 3,    /*!< portrait, text upside-down             */
+    L_TEXT_ORIENT_RIGHT = 4    /*!< landscape, text up to right            */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                         Edge orientation flags                          *
+ *-------------------------------------------------------------------------*/
+
+/*! Edge orientation flags */
+enum {
+    L_HORIZONTAL_EDGES = 0,   /*!< filters for horizontal edges            */
+    L_VERTICAL_EDGES = 1,     /*!< filters for vertical edges              */
+    L_ALL_EDGES = 2           /*!< filters for all edges                   */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                         Line orientation flags                          *
+ *-------------------------------------------------------------------------*/
+
+/*! Line orientation flags */
+enum {
+    L_HORIZONTAL_LINE = 0,   /*!< horizontal line                          */
+    L_POS_SLOPE_LINE = 1,    /*!< 45 degree line with positive slope       */
+    L_VERTICAL_LINE = 2,     /*!< vertical line                            */
+    L_NEG_SLOPE_LINE = 3,    /*!< 45 degree line with negative slope       */
+    L_OBLIQUE_LINE = 4       /*!< neither horizontal nor vertical */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                           Scan direction flags                          *
+ *-------------------------------------------------------------------------*/
+
+/*! Scan direction flags */
+enum {
+    L_FROM_LEFT = 0,         /*!< scan from left                           */
+    L_FROM_RIGHT = 1,        /*!< scan from right                          */
+    L_FROM_TOP = 2,          /*!< scan from top                            */
+    L_FROM_BOT = 3,          /*!< scan from bottom                         */
+    L_SCAN_NEGATIVE = 4,     /*!< scan in negative direction               */
+    L_SCAN_POSITIVE = 5,     /*!< scan in positive direction               */
+    L_SCAN_BOTH = 6,         /*!< scan in both directions                  */
+    L_SCAN_HORIZONTAL = 7,   /*!< horizontal scan (direction unimportant)  */
+    L_SCAN_VERTICAL = 8      /*!< vertical scan (direction unimportant)    */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                Box size adjustment and location flags                   *
+ *-------------------------------------------------------------------------*/
+
+/*! Box size adjustment and location flags */
+enum {
+    L_ADJUST_SKIP = 0,           /*!< do not adjust                        */
+    L_ADJUST_LEFT = 1,           /*!< adjust left edge                     */
+    L_ADJUST_RIGHT = 2,          /*!< adjust right edge                    */
+    L_ADJUST_LEFT_AND_RIGHT = 3, /*!< adjust both left and right edges     */
+    L_ADJUST_TOP = 4,            /*!< adjust top edge                      */
+    L_ADJUST_BOT = 5,            /*!< adjust bottom edge                   */
+    L_ADJUST_TOP_AND_BOT = 6,    /*!< adjust both top and bottom edges     */
+    L_ADJUST_CHOOSE_MIN = 7,     /*!< choose the min median value          */
+    L_ADJUST_CHOOSE_MAX = 8,     /*!< choose the max median value          */
+    L_SET_LEFT = 9,              /*!< set left side to a given value       */
+    L_SET_RIGHT = 10,            /*!< set right side to a given value      */
+    L_SET_TOP = 11,              /*!< set top side to a given value        */
+    L_SET_BOT = 12,              /*!< set bottom side to a given value     */
+    L_GET_LEFT = 13,             /*!< get left side location               */
+    L_GET_RIGHT = 14,            /*!< get right side location              */
+    L_GET_TOP = 15,              /*!< get top side location                */
+    L_GET_BOT = 16               /*!< get bottom side location             */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *          Flags for selecting box boundaries from two choices            *
+ *-------------------------------------------------------------------------*/
+
+/*! Flags for selecting box boundaries from two choices */
+enum {
+    L_USE_MINSIZE = 1,           /*!< use boundaries giving min size       */
+    L_USE_MAXSIZE = 2,           /*!< use boundaries giving max size       */
+    L_SUB_ON_BIG_DIFF = 3,       /*!< substitute boundary if big abs diff  */
+    L_USE_CAPPED_MIN = 4,        /*!< substitute boundary with capped min  */
+    L_USE_CAPPED_MAX = 5         /*!< substitute boundary with capped max  */
+};
+
+/*-------------------------------------------------------------------------*
+ *              Handling overlapping bounding boxes in boxa                *
+ *-------------------------------------------------------------------------*/
+
+/*! Handling overlapping bounding boxes in Boxa */
+enum {
+    L_COMBINE = 1,         /*!< resize to bounding region; remove smaller  */
+    L_REMOVE_SMALL = 2     /*!< only remove smaller                        */
+};
+
+/*-------------------------------------------------------------------------*
+ *                    Flags for replacing invalid boxes                    *
+ *-------------------------------------------------------------------------*/
+
+/*! Flags for replacing invalid boxes */
+enum {
+    L_USE_ALL_BOXES = 1,         /*!< consider all boxes in the sequence   */
+    L_USE_SAME_PARITY_BOXES = 2  /*!< consider boxes with the same parity  */
+};
+
+/*-------------------------------------------------------------------------*
+ *                            Horizontal warp                              *
+ *-------------------------------------------------------------------------*/
+
+/*! Horizonal warp direction */
+enum {
+    L_WARP_TO_LEFT = 1,    /*!< increasing stretch or contraction to left  */
+    L_WARP_TO_RIGHT = 2    /*!< increasing stretch or contraction to right */
+};
+
+/*! Horizonal warp stretch mode */
+enum {
+    L_LINEAR_WARP = 1,     /*!< stretch or contraction grows linearly      */
+    L_QUADRATIC_WARP = 2   /*!< stretch or contraction grows quadratically */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                      Pixel selection for resampling                     *
+ *-------------------------------------------------------------------------*/
+
+/*! Pixel selection for resampling */
+enum {
+    L_INTERPOLATED = 1,    /*!< linear interpolation from src pixels       */
+    L_SAMPLED = 2          /*!< nearest src pixel sampling only            */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                             Thinning flags                              *
+ *-------------------------------------------------------------------------*/
+
+/*! Thinning flags */
+enum {
+    L_THIN_FG = 1,             /*!< thin foreground of 1 bpp image         */
+    L_THIN_BG = 2              /*!< thin background of 1 bpp image         */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                            Runlength flags                              *
+ *-------------------------------------------------------------------------*/
+
+/*! Runlength flags */
+enum {
+    L_HORIZONTAL_RUNS = 0,   /*!< determine runlengths of horizontal runs  */
+    L_VERTICAL_RUNS = 1      /*!< determine runlengths of vertical runs    */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                          Edge filter flags                              *
+ *-------------------------------------------------------------------------*/
+
+/*! Edge filter flags */
+enum {
+    L_SOBEL_EDGE = 1,        /*!< Sobel edge filter                        */
+    L_TWO_SIDED_EDGE = 2     /*!< Two-sided edge filter                    */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *             Subpixel color component ordering in LCD display            *
+ *-------------------------------------------------------------------------*/
+
+/*! Subpixel color component ordering in LC display */
+enum {
+    L_SUBPIXEL_ORDER_RGB = 1,   /*!< sensor order left-to-right RGB        */
+    L_SUBPIXEL_ORDER_BGR = 2,   /*!< sensor order left-to-right BGR        */
+    L_SUBPIXEL_ORDER_VRGB = 3,  /*!< sensor order top-to-bottom RGB        */
+    L_SUBPIXEL_ORDER_VBGR = 4   /*!< sensor order top-to-bottom BGR        */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                          HSV histogram flags                            *
+ *-------------------------------------------------------------------------*/
+
+/*! HSV histogram flags */
+enum {
+    L_HS_HISTO = 1,            /*!< Use hue-saturation histogram           */
+    L_HV_HISTO = 2,            /*!< Use hue-value histogram                */
+    L_SV_HISTO = 3             /*!< Use saturation-value histogram         */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                    Region flags (inclusion, exclusion)                  *
+ *-------------------------------------------------------------------------*/
+
+/*! Region flags (inclusion, exclusion) */
+enum {
+    L_INCLUDE_REGION = 1,      /*!< Use hue-saturation histogram           */
+    L_EXCLUDE_REGION = 2       /*!< Use hue-value histogram                */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                    Flags for adding text to a pix                       *
+ *-------------------------------------------------------------------------*/
+
+/*! Flags for adding text to a Pix */
+enum {
+    L_ADD_ABOVE = 1,           /*!< Add text above the image               */
+    L_ADD_BELOW = 2,           /*!< Add text below the image               */
+    L_ADD_LEFT = 3,            /*!< Add text to the left of the image      */
+    L_ADD_RIGHT = 4,           /*!< Add text to the right of the image     */
+    L_ADD_AT_TOP = 5,          /*!< Add text over the top of the image     */
+    L_ADD_AT_BOT = 6,          /*!< Add text over the bottom of the image  */
+    L_ADD_AT_LEFT = 7,         /*!< Add text over left side of the image   */
+    L_ADD_AT_RIGHT = 8         /*!< Add text over right side of the image  */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                       Flags for plotting on a pix                       *
+ *-------------------------------------------------------------------------*/
+
+/*! Flags for plotting on a Pix */
+enum {
+    L_PLOT_AT_TOP = 1,         /*!< Plot horizontally at top               */
+    L_PLOT_AT_MID_HORIZ = 2,   /*!< Plot horizontally at middle            */
+    L_PLOT_AT_BOT = 3,         /*!< Plot horizontally at bottom            */
+    L_PLOT_AT_LEFT = 4,        /*!< Plot vertically at left                */
+    L_PLOT_AT_MID_VERT = 5,    /*!< Plot vertically at middle              */
+    L_PLOT_AT_RIGHT = 6        /*!< Plot vertically at right               */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                   Flags for selecting display program                   *
+ *-------------------------------------------------------------------------*/
+
+/*! Flags for selecting display program */
+enum {
+    L_DISPLAY_WITH_XZGV = 1,  /*!< Use xzgv with pixDisplay()              */
+    L_DISPLAY_WITH_XLI = 2,   /*!< Use xli with pixDisplay()               */
+    L_DISPLAY_WITH_XV = 3,    /*!< Use xv with pixDisplay()                */
+    L_DISPLAY_WITH_IV = 4,    /*!< Use irfvanview (win) with pixDisplay()  */
+    L_DISPLAY_WITH_OPEN = 5   /*!< Use open (apple) with pixDisplay()      */
+};
+
+/*-------------------------------------------------------------------------*
+ *    Flag(s) used in the 'special' pix field for non-default operations   *
+ *      - 0 is default for chroma sampling in jpeg                         *
+ *      - 10-19 are used for zlib compression in png write                 *
+ *      - 4 and 8 are used for specifying connectivity in labelling        *
+ *-------------------------------------------------------------------------*/
+
+/*! Flags used in Pix::special */
+enum {
+    L_NO_CHROMA_SAMPLING_JPEG = 1   /*!< Write full resolution chroma      */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *          Handling negative values in conversion to unsigned int         *
+ *-------------------------------------------------------------------------*/
+
+/*! Handling negative values in conversion to unsigned int */
+enum {
+    L_CLIP_TO_ZERO = 1,      /*!< Clip negative values to 0                */
+    L_TAKE_ABSVAL = 2        /*!< Convert to positive using L_ABS()        */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *                        Relative to zero flags                           *
+ *-------------------------------------------------------------------------*/
+
+/*! Relative to zero flags */
+enum {
+    L_LESS_THAN_ZERO = 1,    /*!< Choose values less than zero             */
+    L_EQUAL_TO_ZERO = 2,     /*!< Choose values equal to zero              */
+    L_GREATER_THAN_ZERO = 3  /*!< Choose values greater than zero          */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *         Flags for adding or removing traling slash from string          *
+ *-------------------------------------------------------------------------*/
+
+/*! Flags for adding or removing traling slash from string */
+enum {
+    L_ADD_TRAIL_SLASH = 1,     /*!< Add trailing slash to string           */
+    L_REMOVE_TRAIL_SLASH = 2   /*!< Remove trailing slash from string      */
+};
+
+
+/*-------------------------------------------------------------------------*
+ *               Pix allocator and deallocator function types              *
+ *-------------------------------------------------------------------------*/
+/*! Allocator function type */
+typedef void *(*alloc_fn)(size_t);
+
+/*! Deallocator function type */
+typedef void (*dealloc_fn)(void *);
+
+
+#endif  /* LEPTONICA_PIX_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/ptra.h b/third_party/leptonica/uos/aarch64/include/leptonica/ptra.h
new file mode 100644
index 00000000..2de841cc
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/ptra.h
@@ -0,0 +1,95 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_PTRA_H
+#define  LEPTONICA_PTRA_H
+
+/*!
+ * \file ptra.h
+ *
+ * <pre>
+ *  Contains the following structs:
+ *      struct L_Ptra
+ *      struct L_Ptraa
+ *
+ *  Contains definitions for:
+ *      L_Ptra compaction flags for removal
+ *      L_Ptra shifting flags for insert
+ *      L_Ptraa accessor flags
+ * </pre>
+ */
+
+
+/*------------------------------------------------------------------------*
+ *                     Generic Ptr Array Structs                          *
+ *------------------------------------------------------------------------*/
+
+    /*! Generic pointer array */
+struct L_Ptra
+{
+    l_int32          nalloc;    /*!< size of allocated ptr array         */
+    l_int32          imax;      /*!< greatest valid index                */
+    l_int32          nactual;   /*!< actual number of stored elements    */
+    void           **array;     /*!< ptr array                           */
+};
+typedef struct L_Ptra  L_PTRA;
+
+
+    /*! Array of generic pointer arrays */
+struct L_Ptraa
+{
+    l_int32          nalloc;    /*!< size of allocated ptr array         */
+    struct L_Ptra  **ptra;      /*!< array of ptra                       */
+};
+typedef struct L_Ptraa  L_PTRAA;
+
+
+
+/*------------------------------------------------------------------------*
+ *                              Array flags                               *
+ *------------------------------------------------------------------------*/
+
+    /*! Flags for removal from L_Ptra */
+enum {
+    L_NO_COMPACTION = 1,        /*!< null the pointer only                */
+    L_COMPACTION = 2            /*!< compact the array                    */
+};
+
+    /*! Flags for insertion into L_Ptra */
+enum {
+    L_AUTO_DOWNSHIFT = 0,     /*!< choose based on number of holes        */
+    L_MIN_DOWNSHIFT = 1,      /*!< downshifts min # of ptrs below insert  */
+    L_FULL_DOWNSHIFT = 2      /*!< downshifts all ptrs below insert       */
+};
+
+    /*! Accessor flags for L_Ptraa */
+enum {
+    L_HANDLE_ONLY = 0,     /*!< ptr to L_Ptra; caller can inspect only    */
+    L_REMOVE = 1           /*!< caller owns; destroy or save in L_Ptraa   */
+};
+
+
+#endif  /* LEPTONICA_PTRA_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/queue.h b/third_party/leptonica/uos/aarch64/include/leptonica/queue.h
new file mode 100644
index 00000000..fd380e83
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/queue.h
@@ -0,0 +1,77 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_QUEUE_H
+#define  LEPTONICA_QUEUE_H
+
+/*!
+ * \file queue.h
+ *
+ * <pre>
+ *      Expandable pointer queue for arbitrary void* data.
+ *
+ *      The L_Queue is a fifo that implements a queue of void* pointers.
+ *      It can be used to hold a queue of any type of struct.
+ *
+ *      Internally, it maintains two counters:
+ *          nhead:  location of head (in ptrs) from the beginning
+ *                  of the array.
+ *          nelem:  number of ptr elements stored in the queue.
+ *
+ *      The element at the head of the queue, which is the next to
+ *      be removed, is array[nhead].  The location at the tail of the
+ *      queue to which the next element will be added is
+ *      array[nhead + nelem].
+ *
+ *      As items are added to the queue, nelem increases.
+ *      As items are removed, nhead increases and nelem decreases.
+ *      Any time the tail reaches the end of the allocated array,
+ *      all the pointers are shifted to the left, so that the head
+ *      is at the beginning of the array.
+ *      If the array becomes more than 3/4 full, it doubles in size.
+ *
+ *      The auxiliary stack can be used in a wrapper for re-using
+ *      items popped from the queue.  It is not made by default.
+ *
+ *      For further implementation details, see queue.c.
+ * </pre>
+ */
+
+/*! Expandable pointer queue for arbitrary void* data */
+struct L_Queue
+{
+    l_int32          nalloc;   /*!< size of allocated ptr array            */
+    l_int32          nhead;    /*!< location of head (in ptrs) from the    */
+                               /*!< beginning of the array                 */
+    l_int32          nelem;    /*!< number of elements stored in the queue */
+    void           **array;    /*!< ptr array                              */
+    struct L_Stack  *stack;    /*!< auxiliary stack                        */
+
+};
+typedef struct L_Queue L_QUEUE;
+
+
+#endif  /* LEPTONICA_QUEUE_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/rbtree.h b/third_party/leptonica/uos/aarch64/include/leptonica/rbtree.h
new file mode 100644
index 00000000..a7fbffef
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/rbtree.h
@@ -0,0 +1,90 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+/*
+ * Modified from the excellent code here:
+ *     http://en.literateprograms.org/Red-black_tree_(C)?oldid=19567
+ * which has been placed in the public domain under the Creative Commons
+ * CC0 1.0 waiver (http://creativecommons.org/publicdomain/zero/1.0/).
+ *
+ * When the key is generated from a hash (e.g., string --> uint64),
+ * there is always the possibility of having collisions, but to make
+ * the collision probability very low requires using a large hash.
+ * For that reason, the key types are 64 bit quantities, which will result
+ * in a negligible probabililty of collisions for millions of hashed values.
+ * Using 8 byte keys instead of 4 byte keys requires a little more
+ * storage, but the simplification in being able to ignore collisions
+ * with the red-black trees for most applications is worth it.
+ */
+
+#ifndef  LEPTONICA_RBTREE_H
+#define  LEPTONICA_RBTREE_H
+
+    /*! The three valid key types for red-black trees, maps and sets. */
+enum {
+    L_INT_TYPE = 1,
+    L_UINT_TYPE = 2,
+    L_FLOAT_TYPE = 3
+};
+
+    /*!
+     * Storage for keys and values for red-black trees, maps and sets.
+     * <pre>
+     * Note:
+     *   (1) Keys and values of the valid key types are all 64-bit
+     *   (2) (void *) can be used for values but not for keys.
+     * </pre>
+     */
+union Rb_Type {
+    l_int64    itype;
+    l_uint64   utype;
+    l_float64  ftype;
+    void      *ptype;
+};
+typedef union Rb_Type RB_TYPE;
+
+struct L_Rbtree {
+    struct L_Rbtree_Node  *root;
+    l_int32                keytype;
+};
+typedef struct L_Rbtree L_RBTREE;
+typedef struct L_Rbtree L_AMAP;  /* hide underlying implementation for map */
+typedef struct L_Rbtree L_ASET;  /* hide underlying implementation for set */
+
+struct L_Rbtree_Node {
+    union Rb_Type          key;
+    union Rb_Type          value;
+    struct L_Rbtree_Node  *left;
+    struct L_Rbtree_Node  *right;
+    struct L_Rbtree_Node  *parent;
+    l_int32                color;
+};
+typedef struct L_Rbtree_Node L_RBTREE_NODE;
+typedef struct L_Rbtree_Node L_AMAP_NODE;  /* hide tree implementation */
+typedef struct L_Rbtree_Node L_ASET_NODE;  /* hide tree implementation */
+
+
+#endif  /* LEPTONICA_RBTREE_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/readbarcode.h b/third_party/leptonica/uos/aarch64/include/leptonica/readbarcode.h
new file mode 100644
index 00000000..7452f236
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/readbarcode.h
@@ -0,0 +1,239 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_READBARCODE_H
+#define  LEPTONICA_READBARCODE_H
+
+    /* ----------------------------------------------------------------- *
+     *            Flags for method of extracting barcode widths          *
+     * ----------------------------------------------------------------- */
+
+/*! Flags for method of extracting barcode widths */
+enum {
+    L_USE_WIDTHS = 1,     /*!< use histogram of barcode widths           */
+    L_USE_WINDOWS = 2     /*!< find best window for decoding transitions */
+};
+
+    /* ----------------------------------------------------------------- *
+     *                     Flags for barcode formats                     *
+     * These are used both to identify a barcode format and to identify  *
+     * the decoding method to use on a barcode.                          *
+     * ----------------------------------------------------------------- */
+
+/*! Flags for barcode formats */
+enum {
+    L_BF_UNKNOWN = 0,     /*!< unknown format                            */
+    L_BF_ANY = 1,         /*!< try decoding with all known formats       */
+    L_BF_CODE128 = 2,     /*!< decode with Code128 format                */
+    L_BF_EAN8 = 3,        /*!< decode with EAN8 format                   */
+    L_BF_EAN13 = 4,       /*!< decode with EAN13 format                  */
+    L_BF_CODE2OF5 = 5,    /*!< decode with Code 2 of 5 format            */
+    L_BF_CODEI2OF5 = 6,   /*!< decode with Interleaved 2 of 5 format     */
+    L_BF_CODE39 = 7,      /*!< decode with Code39 format                 */
+    L_BF_CODE93 = 8,      /*!< decode with Code93 format                 */
+    L_BF_CODABAR = 9,     /*!< decode with Code93 format                 */
+    L_BF_UPCA = 10        /*!< decode with UPC A format                  */
+};
+
+    /* ----------------------------------------------------------------- *
+     *                  Currently supported formats                      *
+     *            Update these arrays as new formats are added.          *
+     * ----------------------------------------------------------------- */
+
+/*! Currently supported formats */
+static const l_int32  SupportedBarcodeFormat[] = {
+    L_BF_CODE2OF5,
+    L_BF_CODEI2OF5,
+    L_BF_CODE93,
+    L_BF_CODE39,
+    L_BF_CODABAR,
+    L_BF_UPCA,
+    L_BF_EAN13
+};
+
+/*! Currently supported format names */
+static const char  *SupportedBarcodeFormatName[] = {
+    "Code2of5",
+    "CodeI2of5",
+    "Code93",
+    "Code39",
+    "Codabar",
+    "Upca",
+    "Ean13"
+};
+static const l_int32  NumSupportedBarcodeFormats = 7; /*!< Number of formats */
+
+
+    /* ----------------------------------------------------------------- *
+     *                       Code 2 of 5 symbology                       *
+     * ----------------------------------------------------------------- */
+static const char *Code2of5[] = {
+    "111121211", "211111112", "112111112", "212111111",   /* 0 - 3 */
+    "111121112", "211121111", "112121111", "111111212",   /* 4 - 7 */
+    "211111211", "112111211",                             /* 8 - 9 */
+    "21211", "21112"                                      /* Start, Stop */
+};
+
+static const l_int32  C25_START = 10;
+static const l_int32  C25_STOP =  11;
+
+
+    /* ----------------------------------------------------------------- *
+     *                Code Interleaved 2 of 5 symbology                  *
+     * ----------------------------------------------------------------- */
+static const char *CodeI2of5[] = {
+    "11221", "21112", "12112", "22111", "11212",    /*  0 - 4 */
+    "21211", "12211", "11122", "21121", "12121",    /*  5 - 9 */
+    "1111", "211"                                   /*  start, stop */
+};
+
+static const l_int32  CI25_START = 10;
+static const l_int32  CI25_STOP =  11;
+
+
+    /* ----------------------------------------------------------------- *
+     *                         Code 93 symbology                         *
+     * ----------------------------------------------------------------- */
+static const char *Code93[] = {
+    "131112", "111213", "111312", "111411", "121113", /* 0: 0 - 4 */
+    "121212", "121311", "111114", "131211", "141111", /* 5: 5 - 9 */
+    "211113", "211212", "211311", "221112", "221211", /* 10: A - E */
+    "231111", "112113", "112212", "112311", "122112", /* 15: F - J */
+    "132111", "111123", "111222", "111321", "121122", /* 20: K - O */
+    "131121", "212112", "212211", "211122", "211221", /* 25: P - T */
+    "221121", "222111", "112122", "112221", "122121", /* 30: U - Y */
+    "123111", "121131", "311112", "311211", "321111", /* 35: Z,-,.,SP,$ */
+    "112131", "113121", "211131", "131221", "312111", /* 40: /,+,%,($),(%) */
+    "311121", "122211", "111141"                      /* 45: (/),(+), Start */
+};
+
+    /* Use "[]{}#" to represent special codes 43-47 */
+static const char Code93Val[] =
+    "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%[]{}#";
+
+static const l_int32  C93_START = 47;
+static const l_int32  C93_STOP =  47;
+
+
+    /* ----------------------------------------------------------------- *
+     *                         Code 39 symbology                         *
+     * ----------------------------------------------------------------- */
+static const char *Code39[] = {
+    "111221211", "211211112", "112211112", "212211111",  /* 0: 0 - 3      */
+    "111221112", "211221111", "112221111", "111211212",  /* 4: 4 - 7      */
+    "211211211", "112211211", "211112112", "112112112",  /* 8: 8 - B      */
+    "212112111", "111122112", "211122111", "112122111",  /* 12: C - F     */
+    "111112212", "211112211", "112112211", "111122211",  /* 16: G - J     */
+    "211111122", "112111122", "212111121", "111121122",  /* 20: K - N     */
+    "211121121", "112121121", "111111222", "211111221",  /* 24: O - R     */
+    "112111221", "111121221", "221111112", "122111112",  /* 28: S - V     */
+    "222111111", "121121112", "221121111", "122121111",  /* 32: W - Z     */
+    "121111212", "221111211", "122111211", "121212111",  /* 36: -,.,SP,$  */
+    "121211121", "121112121", "111212121", "121121211"   /* 40: /,+,%,*   */
+};
+
+    /* Use "*" to represent the Start and Stop codes (43) */
+static const char Code39Val[] =
+    "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%*";
+
+static const l_int32  C39_START = 43;
+static const l_int32  C39_STOP =  43;
+
+
+    /* ----------------------------------------------------------------- *
+     *                         Codabar symbology                         *
+     * ----------------------------------------------------------------- */
+static const char *Codabar[] = {
+    "1111122", "1111221", "1112112", "2211111", "1121121", /* 0: 0 - 4      */
+    "2111121", "1211112", "1211211", "1221111", "2112111", /* 5: 5 - 9      */
+    "1112211", "1122111", "2111212", "2121112", "2121211", /* 10: -,$,:,/,. */
+    "1121212", "1122121", "1212112", "1112122", "1112221"  /* 15: +,A,B,C,D */
+};
+
+    /* Ascii representations for codes 16-19: (A or T), (B or N), (C or *),
+     * (D or E).  These are used in pairs for the Start and Stop codes. */
+static const char CodabarVal[] = "0123456789-$:/.+ABCD";
+
+
+    /* ----------------------------------------------------------------- *
+     *                          UPC-A symbology                          *
+     * ----------------------------------------------------------------- */
+static const char *Upca[] = {
+    "3211", "2221", "2122", "1411", "1132",  /* 0: 0 - 4              */
+    "1231", "1114", "1312", "1213", "3112",  /* 5: 5 - 9              */
+    "111", "111", "11111"                    /* 10: Start, Stop, Mid  */
+};
+
+static const l_int32  UPCA_START = 10;
+static const l_int32  UPCA_STOP =  11;
+static const l_int32  UPCA_MID =   12;
+
+
+    /* ----------------------------------------------------------------- *
+     *                         Code128 symbology                         *
+     * ----------------------------------------------------------------- */
+static const char *Code128[] = {
+    "212222", "222122", "222221", "121223", "121322",    /*  0 - 4 */
+    "131222", "122213", "122312", "132212", "221213",    /*  5 - 9 */
+    "221312", "231212", "112232", "122132", "122231",    /* 10 - 14 */
+    "113222", "123122", "123221", "223211", "221132",    /* 15 - 19 */
+    "221231", "213212", "223112", "312131", "311222",    /* 20 - 24 */
+    "321122", "321221", "312212", "322112", "322211",    /* 25 - 29 */
+    "212123", "212321", "232121", "111323", "131123",    /* 30 - 34 */
+    "131321", "112313", "132113", "132311", "211313",    /* 35 - 39 */
+    "231113", "231311", "112133", "112331", "132131",    /* 40 - 44 */
+    "113123", "113321", "133121", "313121", "211331",    /* 45 - 49 */
+    "231131", "213113", "213311", "213131", "311123",    /* 50 - 54 */
+    "311321", "331121", "312113", "312311", "332111",    /* 55 - 59 */
+    "314111", "221411", "431111", "111224", "111422",    /* 60 - 64 */
+    "121124", "121421", "141122", "141221", "112214",    /* 65 - 69 */
+    "112412", "122114", "122411", "142112", "142211",    /* 70 - 74 */
+    "241211", "221114", "413111", "241112", "134111",    /* 75 - 79 */
+    "111242", "121142", "121241", "114212", "124112",    /* 80 - 84 */
+    "124211", "411212", "421112", "421211", "212141",    /* 85 - 89 */
+    "214121", "412121", "111143", "111341", "131141",    /* 90 - 94 */
+    "114113", "114311", "411113", "411311", "113141",    /* 95 - 99 */
+    "114131", "311141", "411131", "211412", "211214",    /* 100 - 104 */
+    "211232", "2331112"                                  /* 105 - 106 */
+};
+
+static const l_int32  C128_FUN_3 =    96;   /* in A or B only; in C it is 96 */
+static const l_int32  C128_FUNC_2 =   97;   /* in A or B only; in C it is 97 */
+static const l_int32  C128_SHIFT =    98;   /* in A or B only; in C it is 98 */
+static const l_int32  C128_GOTO_C =   99;   /* in A or B only; in C it is 99 */
+static const l_int32  C128_GOTO_B =  100;
+static const l_int32  C128_GOTO_A =  101;
+static const l_int32  C128_FUNC_1 =  102;
+static const l_int32  C128_START_A = 103;
+static const l_int32  C128_START_B = 104;
+static const l_int32  C128_START_C = 105;
+static const l_int32  C128_STOP =    106;
+    /* code 128 symbols are 11 units */
+static const l_int32  C128_SYMBOL_WIDTH = 11;
+
+
+
+#endif  /* LEPTONICA_READBARCODE_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/recog.h b/third_party/leptonica/uos/aarch64/include/leptonica/recog.h
new file mode 100644
index 00000000..06177200
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/recog.h
@@ -0,0 +1,263 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_RECOG_H
+#define  LEPTONICA_RECOG_H
+
+/*!
+ * \file recog.h
+ *
+ * <pre>
+ *     This is a simple utility for training and recognizing individual
+ *     machine-printed text characters.  It is designed to be adapted
+ *     to a particular set of character images; e.g., from a book.
+ *
+ *     There are two methods of training the recognizer.  In the most
+ *     simple, a set of bitmaps has been labeled by some means, such
+ *     a generic OCR program.  This is input either one template at a time
+ *     or as a pixa of templates, to a function that creates a recog.
+ *     If in a pixa, the text string label must be embedded in the
+ *     text field of each pix.
+ *
+ *     If labeled data is not available, we start with a bootstrap
+ *     recognizer (BSR) that has labeled data from a variety of sources.
+ *     These images are scaled, typically to a fixed height, and then
+ *     fed similarly scaled unlabeled images from the source (e.g., book),
+ *     and the BSR attempts to identify them.  All images that have
+ *     a high enough correlation score with one of the templates in the
+ *     BSR are emitted in a pixa, which now holds unscaled and labeled
+ *     templates from the source.  This is the generator for a book adapted
+ *     recognizer (BAR).
+ *
+ *     The pixa should always be thought of as the primary structure.
+ *     It is the generator for the recog, because a recog is built
+ *     from a pixa of unscaled images.
+ *
+ *     New image templates can be added to a recog as long as it is
+ *     in training mode.  Once training is finished, to add templates
+ *     it is necessary to extract the generating pixa, add templates
+ *     to that pixa, and make a new recog.  Similarly, we do not
+ *     join two recog; instead, we simply join their generating pixa,
+ *     and make a recog from that.
+ *
+ *     To remove outliers from a pixa of labeled pix, make a recog,
+ *     determine the outliers, and generate a new pixa with the
+ *     outliers removed.  The outliers are determined by building
+ *     special templates for each character set that are scaled averages
+ *     of the individual templates.  Then a correlation score is found
+ *     between each template and the averaged templates.  There are
+ *     two implementations; outliers are determined as either:
+ *      (1) a template having a correlation score with its class average
+ *          that is below a threshold, or
+ *      (2) a template having a correlation score with its class average
+ *          that is smaller than the correlation score with the average
+ *          of another class.
+ *     Outliers are removed from the generating pixa.  Scaled averaging
+ *     is only performed for determining outliers and for splitting
+ *     characters; it is never used in a trained recognizer for identifying
+ *     unlabeled samples.
+ *
+ *     Two methods using averaged templates are provided for splitting
+ *     touching characters:
+ *      (1) greedy matching
+ *      (2) document image decoding (DID)
+ *     The DID method is the default.  It is about 5x faster and
+ *     possibly more accurate.
+ *
+ *     Once a BAR has been made, unlabeled sample images are identified
+ *     by finding the individual template in the BAR with highest
+ *     correlation.  The input images and images in the BAR can be
+ *     represented in two ways:
+ *      (1) as scanned, binarized to 1 bpp
+ *      (2) as a width-normalized outline formed by thinning to a
+ *          skeleton and then dilating by a fixed amount.
+ *
+ *     The recog can be serialized to file and read back.  The serialized
+ *     version holds the templates used for correlation (which may have
+ *     been modified by scaling and turning into lines from the unscaled
+ *     templates), plus, for arbitrary character sets, the UTF8
+ *     representation and the lookup table mapping from the character
+ *     representation to index.
+ *
+ *     Why do we not use averaged templates for recognition?
+ *     Letterforms can take on significantly different shapes (eg.,
+ *     the letters 'a' and 'g'), and it makes no sense to average these.
+ *     The previous version of this utility allowed multiple recognizers
+ *     to exist, but this is an unnecessary complication if recognition
+ *     is done on all samples instead of on averages.
+ * </pre>
+ */
+
+#define  RECOG_VERSION_NUMBER      2
+
+struct L_Recog {
+    l_int32        scalew;       /*!< scale all examples to this width;      */
+                                 /*!< use 0 prevent horizontal scaling       */
+    l_int32        scaleh;       /*!< scale all examples to this height;     */
+                                 /*!< use 0 prevent vertical scaling         */
+    l_int32        linew;        /*!< use a value > 0 to convert the bitmap  */
+                                 /*!< to lines of fixed width; 0 to skip     */
+    l_int32        templ_use;    /*!< template use: use either the average   */
+                                 /*!< or all temmplates (L_USE_AVERAGE or    */
+                                 /*!< L_USE_ALL)                             */
+    l_int32        maxarraysize; /*!< initialize container arrays to this    */
+    l_int32        setsize;      /*!< size of character set                  */
+    l_int32        threshold;    /*!< for binarizing if depth > 1            */
+    l_int32        maxyshift;    /*!< vertical jiggle on nominal centroid    */
+                                 /*!< alignment; typically 0 or 1            */
+    l_int32        charset_type; /*!< one of L_ARABIC_NUMERALS, etc.         */
+    l_int32        charset_size; /*!< expected number of classes in charset  */
+    l_int32        min_nopad;    /*!< min number of samples without padding  */
+    l_int32        num_samples;  /*!< number of training samples             */
+    l_int32        minwidth_u;   /*!< min width averaged unscaled templates  */
+    l_int32        maxwidth_u;   /*!< max width averaged unscaled templates  */
+    l_int32        minheight_u;  /*!< min height averaged unscaled templates */
+    l_int32        maxheight_u;  /*!< max height averaged unscaled templates */
+    l_int32        minwidth;     /*!< min width averaged scaled templates    */
+    l_int32        maxwidth;     /*!< max width averaged scaled templates    */
+    l_int32        ave_done;     /*!< set to 1 when averaged bitmaps are made */
+    l_int32        train_done;   /*!< set to 1 when training is complete or  */
+                                 /*!< identification has started             */
+    l_float32      max_wh_ratio; /*!< max width/height ratio to split        */
+    l_float32      max_ht_ratio; /*!< max of max/min template height ratio   */
+    l_int32        min_splitw;   /*!< min component width kept in splitting  */
+    l_int32        max_splith;   /*!< max component height kept in splitting */
+    struct Sarray *sa_text;      /*!< text array for arbitrary char set      */
+    struct L_Dna  *dna_tochar;   /*!< index-to-char lut for arbitrary charset */
+    l_int32       *centtab;      /*!< table for finding centroids            */
+    l_int32       *sumtab;       /*!< table for finding pixel sums           */
+    struct Pixaa  *pixaa_u;      /*!< all unscaled templates for each class  */
+    struct Ptaa   *ptaa_u;       /*!< centroids of all unscaled templates    */
+    struct Numaa  *naasum_u;     /*!< area of all unscaled templates         */
+    struct Pixaa  *pixaa;        /*!< all (scaled) templates for each class  */
+    struct Ptaa   *ptaa;         /*!< centroids of all (scaledl) templates   */
+    struct Numaa  *naasum;       /*!< area of all (scaled) templates         */
+    struct Pixa   *pixa_u;       /*!< averaged unscaled templates per class  */
+    struct Pta    *pta_u;        /*!< centroids of unscaled ave. templates   */
+    struct Numa   *nasum_u;      /*!< area of unscaled averaged templates    */
+    struct Pixa   *pixa;         /*!< averaged (scaled) templates per class  */
+    struct Pta    *pta;          /*!< centroids of (scaled) ave. templates   */
+    struct Numa   *nasum;        /*!< area of (scaled) averaged templates    */
+    struct Pixa   *pixa_tr;      /*!< all input training images              */
+    struct Pixa   *pixadb_ave;   /*!< unscaled and scaled averaged bitmaps   */
+    struct Pixa   *pixa_id;      /*!< input images for identifying           */
+    struct Pix    *pixdb_ave;    /*!< debug: best match of input against ave. */
+    struct Pix    *pixdb_range;  /*!< debug: best matches within range       */
+    struct Pixa   *pixadb_boot;  /*!< debug: bootstrap training results      */
+    struct Pixa   *pixadb_split; /*!< debug: splitting results               */
+    struct L_Bmf  *bmf;          /*!< bmf fonts                              */
+    l_int32        bmf_size;     /*!< font size of bmf; default is 6 pt      */
+    struct L_Rdid *did;          /*!< temp data used for image decoding      */
+    struct L_Rch  *rch;          /*!< temp data used for holding best char   */
+    struct L_Rcha *rcha;         /*!< temp data used for array of best chars */
+};
+typedef struct L_Recog L_RECOG;
+
+/*!
+ *  Data returned from correlation matching on a single character
+ */
+struct L_Rch {
+    l_int32        index;      /*!< index of best template                   */
+    l_float32      score;      /*!< correlation score of best template       */
+    char          *text;       /*!< character string of best template        */
+    l_int32        sample;     /*!< index of best sample (within the best    */
+                               /*!< template class, if all samples are used) */
+    l_int32        xloc;       /*!< x-location of template (delx + shiftx)   */
+    l_int32        yloc;       /*!< y-location of template (dely + shifty)   */
+    l_int32        width;      /*!< width of best template                   */
+};
+typedef struct L_Rch L_RCH;
+
+/*!
+ *  Data returned from correlation matching on an array of characters
+ */
+struct L_Rcha {
+    struct Numa   *naindex;    /*!< indices of best templates                */
+    struct Numa   *nascore;    /*!< correlation scores of best templates     */
+    struct Sarray *satext;     /*!< character strings of best templates      */
+    struct Numa   *nasample;   /*!< indices of best samples                  */
+    struct Numa   *naxloc;     /*!< x-locations of templates (delx + shiftx) */
+    struct Numa   *nayloc;     /*!< y-locations of templates (dely + shifty) */
+    struct Numa   *nawidth;    /*!< widths of best templates                 */
+};
+typedef struct L_Rcha L_RCHA;
+
+/*!
+ *  Data used for decoding a line of characters.
+ */
+struct L_Rdid {
+    struct Pix    *pixs;         /*!< clone of pix to be decoded             */
+    l_int32      **counta;       /*!< count array for each averaged template */
+    l_int32      **delya;        /*!< best y-shift array per average template */
+    l_int32        narray;       /*!< number of averaged templates           */
+    l_int32        size;         /*!< size of count array (width of pixs)    */
+    l_int32       *setwidth;     /*!< setwidths for each template            */
+    struct Numa   *nasum;        /*!< pixel count in pixs by column          */
+    struct Numa   *namoment;     /*!< first moment of pixels in pixs by cols */
+    l_int32        fullarrays;   /*!< 1 if full arrays are made; 0 otherwise */
+    l_float32     *beta;         /*!< channel coeffs for template fg term    */
+    l_float32     *gamma;        /*!< channel coeffs for bit-and term        */
+    l_float32     *trellisscore; /*!< score on trellis                       */
+    l_int32       *trellistempl; /*!< template on trellis (for backtrack)    */
+    struct Numa   *natempl;      /*!< indices of best path templates         */
+    struct Numa   *naxloc;       /*!< x locations of best path templates     */
+    struct Numa   *nadely;       /*!< y locations of best path templates     */
+    struct Numa   *nawidth;      /*!< widths of best path templates          */
+    struct Boxa   *boxa;         /*!< Viterbi result for splitting input pixs */
+    struct Numa   *nascore;      /*!< correlation scores: best path templates */
+    struct Numa   *natempl_r;    /*!< indices of best rescored templates     */
+    struct Numa   *nasample_r;   /*!< samples of best scored templates       */
+    struct Numa   *naxloc_r;     /*!< x locations of best rescoredtemplates  */
+    struct Numa   *nadely_r;     /*!< y locations of best rescoredtemplates  */
+    struct Numa   *nawidth_r;    /*!< widths of best rescoredtemplates       */
+    struct Numa   *nascore_r;    /*!< correlation scores: rescored templates */
+};
+typedef struct L_Rdid L_RDID;
+
+
+/*-------------------------------------------------------------------------*
+ *             Flags for describing limited character sets                 *
+ *-------------------------------------------------------------------------*/
+/*! Flags for describing limited character sets */
+enum {
+    L_UNKNOWN = 0,           /*!< character set type is not specified      */
+    L_ARABIC_NUMERALS = 1,   /*!< 10 digits                                */
+    L_LC_ROMAN_NUMERALS = 2, /*!< 7 lower-case letters (i,v,x,l,c,d,m)     */
+    L_UC_ROMAN_NUMERALS = 3, /*!< 7 upper-case letters (I,V,X,L,C,D,M)     */
+    L_LC_ALPHA = 4,          /*!< 26 lower-case letters                    */
+    L_UC_ALPHA = 5           /*!< 26 upper-case letters                    */
+};
+
+/*-------------------------------------------------------------------------*
+ *      Flags for selecting between using average and all templates        *
+ *-------------------------------------------------------------------------*/
+/*! Flags for selecting average or all templates: recog->templ_use */
+enum {
+    L_USE_ALL_TEMPLATES = 0,     /*!< use all templates; default            */
+    L_USE_AVERAGE_TEMPLATES = 1  /*!< use average templates; special cases  */
+};
+
+#endif  /* LEPTONICA_RECOG_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/regutils.h b/third_party/leptonica/uos/aarch64/include/leptonica/regutils.h
new file mode 100644
index 00000000..f3506a31
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/regutils.h
@@ -0,0 +1,140 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_REGUTILS_H
+#define  LEPTONICA_REGUTILS_H
+
+/*!
+ * \file regutils.h
+ *
+ * <pre>
+ *   Contains this regression test parameter packaging struct
+ *       struct L_RegParams
+ *
+ *   The regression test utility allows you to write regression tests
+ *   that compare results with existing "golden files" and with
+ *   compiled in data.
+ *
+ *   Regression tests can be called in three ways.
+ *   For example, for distance_reg:
+ *
+ *       Case 1: distance_reg [compare]
+ *           This runs the test against the set of golden files.  It
+ *           appends to 'outfile.txt' either "SUCCESS" or "FAILURE",
+ *           as well as the details of any parts of the test that failed.
+ *           It writes to a temporary file stream (fp).
+ *           Using 'compare' on the command line is optional.
+ *
+ *       Case 2: distance_reg generate
+ *           This generates golden files in /tmp for the reg test.
+ *
+ *       Case 3: distance_reg display
+ *           This runs the test but makes no comparison of the output
+ *           against the set of golden files.  In addition, this displays
+ *           images and plots that are specified in the test under
+ *           control of the display variable.  Display is enabled only
+ *           for this case.
+ *
+ *   Regression tests follow the pattern given below.  Tests are
+ *   automatically numbered sequentially, and it is convenient to
+ *   comment each with a number to keep track (for comparison tests
+ *   and for debugging).  In an actual case, comparisons of pix and
+ *   of files can occur in any order.  We give a specific order here
+ *   for clarity.
+ *
+ *       L_REGPARAMS  *rp;  // holds data required by the test functions
+ *
+ *       // Setup variables; optionally open stream
+ *       if (regTestSetup(argc, argv, &rp))
+ *           return 1;
+ *
+ *       // Test pairs of generated pix for identity.  This compares
+ *       // two pix; no golden file is generated.
+ *       regTestComparePix(rp, pix1, pix2);  // 0
+ *
+ *       // Test pairs of generated pix for similarity.  This compares
+ *       // two pix; no golden file is generated.  The last arg determines
+ *       // if stats are to be written to stderr.
+ *       regTestCompareSimilarPix(rp, pix1, pix2, 15, 0.001, 0);  // 1
+ *
+ *       // Generation of <newfile*> outputs and testing for identity
+ *       // These files can be anything, of course.
+ *       regTestCheckFile(rp, <newfile0>);  // 2
+ *       regTestCheckFile(rp, <newfile1>);  // 3
+ *
+ *       // Test pairs of output golden files for identity.  Here we
+ *       // are comparing golden files 2 and 3.
+ *       regTestCompareFiles(rp, 2, 3);  // 4
+ *
+ *       // "Write and check".  This writes a pix using a canonical
+ *       // formulation for the local filename and either:
+ *       //     case 1: generates a golden file
+ *       //     case 2: compares the local file with a golden file
+ *       //     case 3: generates local files and displays
+ *       // Here we write the pix compressed with png and jpeg, respectively;
+ *       // Then check against the golden file.  The internal %index
+ *       // is incremented; it is embedded in the local filename and,
+ *       // if generating, in the golden file as well.
+ *       regTestWritePixAndCheck(rp, pix1, IFF_PNG);  // 5
+ *       regTestWritePixAndCheck(rp, pix2, IFF_JFIF_JPEG);  // 6
+ *
+ *       // Display if reg test was called in 'display' mode
+ *       pixDisplayWithTitle(pix1, 100, 100, NULL, rp->display);
+ *
+ *       // Clean up and output result
+ *       regTestCleanup(rp);
+ * </pre>
+ */
+
+/*----------------------------------------------------------------------------*
+ *                      Regression test parameter packer                      *
+ *----------------------------------------------------------------------------*/
+
+/*! Regression test parameter packer */
+struct L_RegParams
+{
+    FILE    *fp;        /*!< stream to temporary output file for compare mode */
+    char    *testname;  /*!< name of test, without '_reg'                     */
+    char    *tempfile;  /*!< name of temp file for compare mode output        */
+    l_int32  mode;      /*!< generate, compare or display                     */
+    l_int32  index;     /*!< index into saved files for this test; 0-based    */
+    l_int32  success;   /*!< overall result of the test                       */
+    l_int32  display;   /*!< 1 if in display mode; 0 otherwise                */
+    L_TIMER  tstart;    /*!< marks beginning of the reg test                  */
+};
+typedef struct L_RegParams  L_REGPARAMS;
+
+
+    /*! Running modes for the test */
+enum {
+    L_REG_GENERATE = 0,
+    L_REG_COMPARE = 1,
+    L_REG_DISPLAY = 2
+};
+
+
+#endif  /* LEPTONICA_REGUTILS_H */
+
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/stack.h b/third_party/leptonica/uos/aarch64/include/leptonica/stack.h
new file mode 100644
index 00000000..4fa61141
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/stack.h
@@ -0,0 +1,70 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_STACK_H
+#define  LEPTONICA_STACK_H
+
+/*!
+ * \file stack.h
+ *
+ * <pre>
+ *       Expandable pointer stack for arbitrary void* data.
+ *
+ *       The L_Stack is an array of void * ptrs, onto which arbitrary
+ *       objects can be stored.  At any time, the number of
+ *       stored objects is stack->n.  The object at the bottom
+ *       of the stack is at array[0]; the object at the top of
+ *       the stack is at array[n-1].  New objects are added
+ *       to the top of the stack, at the first available location,
+ *       which is array[n].  Objects are removed from the top of the
+ *       stack.  When an attempt is made to remove an object from an
+ *       empty stack, the result is null.   When the stack becomes
+ *       filled, so that n = nalloc, the size is doubled.
+ *
+ *       The auxiliary stack can be used to store and remove
+ *       objects for re-use.  It must be created by a separate
+ *       call to pstackCreate().  [Just imagine the chaos if
+ *       pstackCreate() created the auxiliary stack!]
+ *       pstackDestroy() checks for the auxiliary stack and removes it.
+ * </pre>
+ */
+
+
+    /*! Expandable pointer stack for arbitrary void* data.
+     * Note that array[n] is the first null ptr in the array
+     */
+struct L_Stack
+{
+    l_int32          nalloc;     /*!< size of ptr array              */
+    l_int32          n;          /*!< number of stored elements      */
+    void           **array;      /*!< ptr array                      */
+    struct L_Stack  *auxstack;   /*!< auxiliary stack                */
+};
+typedef struct L_Stack  L_STACK;
+
+
+#endif /*  LEPTONICA_STACK_H */
+
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/stringcode.h b/third_party/leptonica/uos/aarch64/include/leptonica/stringcode.h
new file mode 100644
index 00000000..db0faa20
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/stringcode.h
@@ -0,0 +1,60 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_STRINGCODE_H
+#define  LEPTONICA_STRINGCODE_H
+
+/*!
+ * \file stringcode.h
+ *
+ *     Data structure to hold accumulating generated code for storing
+ *     and extracing serializable leptonica objects (e.g., pixa, recog).
+ *
+ *     Also a flag for selecting a string from the L_GenAssoc struct
+ *     in stringcode.
+ */
+
+struct L_StrCode
+{
+    l_int32       fileno;    /*!< index for function and output file names   */
+    l_int32       ifunc;     /*!< index into struct currently being stored   */
+    SARRAY       *function;  /*!< store case code for extraction             */
+    SARRAY       *data;      /*!< store base64 encoded data as strings       */
+    SARRAY       *descr;     /*!< store line in description table            */
+    l_int32       n;         /*!< number of data strings                     */
+};
+typedef struct L_StrCode  L_STRCODE;
+
+
+/*! Select string in stringcode for a specific serializable data type */
+enum {
+    L_STR_TYPE = 0,      /*!< typedef for the data type                      */
+    L_STR_NAME = 1,      /*!< name of the data type                          */
+    L_STR_READER = 2,    /*!< reader to get the data type from file          */
+    L_STR_MEMREADER = 3  /*!< reader to get the compressed string in memory  */
+};
+
+#endif  /* LEPTONICA_STRINGCODE_H */
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/sudoku.h b/third_party/leptonica/uos/aarch64/include/leptonica/sudoku.h
new file mode 100644
index 00000000..ba4b21e9
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/sudoku.h
@@ -0,0 +1,76 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef SUDOKU_H_INCLUDED
+#define SUDOKU_H_INCLUDED
+
+/*!
+ * \file sudoku.h
+ *
+ * <pre>
+ *    The L_Sudoku holds all the information of the current state.
+ *
+ *    The input to sudokuCreate() is a file with any number of lines
+ *    starting with '#', followed by 9 lines consisting of 9 numbers
+ *    in each line.  These have the known values and use 0 for the unknowns.
+ *    Blank lines are ignored.
+ *
+ *    The %locs array holds the indices of the unknowns, numbered
+ *    left-to-right and top-to-bottom from 0 to 80.  The array size
+ *    is initialized to %num.  %current is the index into the %locs
+ *    array of the current guess: locs[current].
+ *
+ *    The %state array is used to determine the validity of each guess.
+ *    It is of size 81, and is initialized by setting the unknowns to 0
+ *    and the knowns to their input values.
+ * </pre>
+ */
+
+struct L_Sudoku
+{
+    l_int32        num;       /*!< number of unknowns                     */
+    l_int32       *locs;      /*!< location of unknowns                   */
+    l_int32        current;   /*!< index into %locs of current location   */
+    l_int32       *init;      /*!< initial state, with 0 representing     */
+                              /*!< the unknowns                           */
+    l_int32       *state;     /*!< present state, including inits and     */
+                              /*!< guesses of unknowns up to %current     */
+    l_int32        nguess;    /*!< shows current number of guesses        */
+    l_int32        finished;  /*!< set to 1 when solved                   */
+    l_int32        failure;   /*!< set to 1 if no solution is possible    */
+};
+typedef struct L_Sudoku  L_SUDOKU;
+
+
+    /*! For printing out array data */
+enum {
+    L_SUDOKU_INIT = 0,
+    L_SUDOKU_STATE = 1
+};
+
+#endif /* SUDOKU_H_INCLUDED */
+
+
diff --git a/third_party/leptonica/uos/aarch64/include/leptonica/watershed.h b/third_party/leptonica/uos/aarch64/include/leptonica/watershed.h
new file mode 100644
index 00000000..d6b20775
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/include/leptonica/watershed.h
@@ -0,0 +1,64 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_WATERSHED_H
+#define  LEPTONICA_WATERSHED_H
+
+/*!
+ * \file watershed.h
+ *
+ *     Simple data structure to hold watershed data.
+ *     All data here is owned by the L_WShed and must be freed.
+ */
+
+/*! Simple data structure to hold watershed data. */
+struct L_WShed
+{
+    struct Pix    *pixs;      /*!< clone of input 8 bpp pixs                */
+    struct Pix    *pixm;      /*!< clone of input 1 bpp seed (marker) pixm  */
+    l_int32        mindepth;  /*!< minimum depth allowed for a watershed    */
+    struct Pix    *pixlab;    /*!< 16 bpp label pix                         */
+    struct Pix    *pixt;      /*!< scratch pix for computing wshed regions  */
+    void         **lines8;    /*!< line ptrs for pixs                       */
+    void         **linem1;    /*!< line ptrs for pixm                       */
+    void         **linelab32; /*!< line ptrs for pixlab                     */
+    void         **linet1;    /*!< line ptrs for pixt                       */
+    struct Pixa   *pixad;     /*!< result: 1 bpp pixa of watersheds         */
+    struct Pta    *ptas;      /*!< pta of initial seed pixels               */
+    struct Numa   *nasi;      /*!< numa of seed indicators; 0 if completed  */
+    struct Numa   *nash;      /*!< numa of initial seed heights             */
+    struct Numa   *namh;      /*!< numa of initial minima heights           */
+    struct Numa   *nalevels;  /*!< result: numa of watershed levels         */
+    l_int32        nseeds;    /*!< number of seeds (markers)                */
+    l_int32        nother;    /*!< number of minima different from seeds    */
+    l_int32       *lut;       /*!< lut for pixel indices                    */
+    struct Numa  **links;     /*!< back-links into lut, for updates         */
+    l_int32        arraysize; /*!< size of links array                      */
+    l_int32        debug;     /*!< set to 1 for debug output                */
+};
+typedef struct L_WShed L_WSHED;
+
+#endif  /* LEPTONICA_WATERSHED_H */
diff --git a/third_party/leptonica/uos/aarch64/lib/libleptonica.a b/third_party/leptonica/uos/aarch64/lib/libleptonica.a
new file mode 100644
index 00000000..b2778a3f
Binary files /dev/null and b/third_party/leptonica/uos/aarch64/lib/libleptonica.a differ
diff --git a/third_party/leptonica/uos/aarch64/lib/pkgconfig/lept.pc b/third_party/leptonica/uos/aarch64/lib/pkgconfig/lept.pc
new file mode 100644
index 00000000..7c46bea7
--- /dev/null
+++ b/third_party/leptonica/uos/aarch64/lib/pkgconfig/lept.pc
@@ -0,0 +1,11 @@
+prefix=/data/home/huagao/sane/code_app/third_party/leptonica/uos/aarch64/leptonica-1.74.4/build/release
+exec_prefix=${prefix}/bin
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+Name: leptonica
+Description: An open source C library for efficient image processing and image analysis operations
+Version: 1.74.4
+Libs: -L${libdir} -lleptonica_OUTPUT_NAME-NOTFOUND
+Libs.private:
+Cflags: -I${includedir} -I${includedir}/leptonica
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/apitypes.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/apitypes.h
new file mode 100644
index 00000000..2c0e85c9
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/apitypes.h
@@ -0,0 +1,33 @@
+///////////////////////////////////////////////////////////////////////
+// File:        apitypes.h
+// Description: Types used in both the API and internally
+// Author:      Ray Smith
+// Created:     Wed Mar 03 09:22:53 PST 2010
+//
+// (C) Copyright 2010, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+
+#ifndef TESSERACT_API_APITYPES_H_
+#define TESSERACT_API_APITYPES_H_
+
+#include "publictypes.h"
+
+// The types used by the API and Page/ResultIterator can be found in:
+//   ccstruct/publictypes.h
+//   ccmain/resultiterator.h
+//   ccmain/pageiterator.h
+// API interfaces and API users should be sure to include this file, rather
+// than the lower-level one, and lower-level code should be sure to include
+// only the lower-level file.
+
+#endif  // TESSERACT_API_APITYPES_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/baseapi.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/baseapi.h
new file mode 100644
index 00000000..3724dd92
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/baseapi.h
@@ -0,0 +1,944 @@
+///////////////////////////////////////////////////////////////////////
+// File:        baseapi.h
+// Description: Simple API for calling tesseract.
+// Author:      Ray Smith
+//
+// (C) Copyright 2006, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+
+#ifndef TESSERACT_API_BASEAPI_H_
+#define TESSERACT_API_BASEAPI_H_
+
+#include <cstdio>
+// To avoid collision with other typenames include the ABSOLUTE MINIMUM
+// complexity of includes here. Use forward declarations wherever possible
+// and hide includes of complex types in baseapi.cpp.
+#include "apitypes.h"
+#include "pageiterator.h"
+#include "platform.h"
+#include "publictypes.h"
+#include "resultiterator.h"
+#include "serialis.h"
+#include "tess_version.h"
+#include "tesscallback.h"
+#include "thresholder.h"
+#include "unichar.h"
+
+template <typename T> class GenericVector;
+class PAGE_RES;
+class PAGE_RES_IT;
+class ParagraphModel;
+struct BlamerBundle;
+class BLOCK_LIST;
+class DENORM;
+class MATRIX;
+class ROW;
+class STRING;
+class WERD;
+struct Pix;
+struct Box;
+struct Pixa;
+struct Boxa;
+class ETEXT_DESC;
+struct OSResults;
+class TBOX;
+class UNICHARSET;
+class WERD_CHOICE_LIST;
+
+struct INT_FEATURE_STRUCT;
+using INT_FEATURE = INT_FEATURE_STRUCT *;
+struct TBLOB;
+
+namespace tesseract {
+
+class Dawg;
+class Dict;
+class EquationDetect;
+class PageIterator;
+class LTRResultIterator;
+class ResultIterator;
+class MutableIterator;
+class TessResultRenderer;
+class Tesseract;
+class Trie;
+class Wordrec;
+
+using DictFunc = int (Dict::*)(void *, const UNICHARSET &, UNICHAR_ID, bool) const;
+using ProbabilityInContextFunc = double (Dict::*)(const char *, const char *, int, const char *, int);
+using ParamsModelClassifyFunc = float (Dict::*)(const char *, void *);
+using FillLatticeFunc = void (Wordrec::*)(const MATRIX &, const WERD_CHOICE_LIST &, const UNICHARSET &, BlamerBundle *);
+typedef TessCallback4<const UNICHARSET &, int, PageIterator *, Pix *>
+    TruthCallback;
+
+/**
+ * Base class for all tesseract APIs.
+ * Specific classes can add ability to work on different inputs or produce
+ * different outputs.
+ * This class is mostly an interface layer on top of the Tesseract instance
+ * class to hide the data types so that users of this class don't have to
+ * include any other Tesseract headers.
+ */
+class TESS_API TessBaseAPI {
+ public:
+  TessBaseAPI();
+  virtual ~TessBaseAPI();
+
+  /**
+   * Returns the version identifier as a static string. Do not delete.
+   */
+  static const char* Version();
+
+  /**
+   * If compiled with OpenCL AND an available OpenCL
+   * device is deemed faster than serial code, then
+   * "device" is populated with the cl_device_id
+   * and returns sizeof(cl_device_id)
+   * otherwise *device=nullptr and returns 0.
+   */
+  static size_t getOpenCLDevice(void **device);
+
+  /**
+   * Writes the thresholded image to stderr as a PBM file on receipt of a
+   * SIGSEGV, SIGFPE, or SIGBUS signal. (Linux/Unix only).
+   */
+  static void CatchSignals();
+
+  /**
+   * Set the name of the input file. Needed for training and
+   * reading a UNLV zone file, and for searchable PDF output.
+   */
+  void SetInputName(const char* name);
+  /**
+   * These functions are required for searchable PDF output.
+   * We need our hands on the input file so that we can include
+   * it in the PDF without transcoding. If that is not possible,
+   * we need the original image. Finally, resolution metadata
+   * is stored in the PDF so we need that as well.
+   */
+  const char* GetInputName();
+  // Takes ownership of the input pix.
+  void SetInputImage(Pix *pix);
+  Pix* GetInputImage();
+  int GetSourceYResolution();
+  const char* GetDatapath();
+
+  /** Set the name of the bonus output files. Needed only for debugging. */
+  void SetOutputName(const char* name);
+
+  /**
+   * Set the value of an internal "parameter."
+   * Supply the name of the parameter and the value as a string, just as
+   * you would in a config file.
+   * Returns false if the name lookup failed.
+   * Eg SetVariable("tessedit_char_blacklist", "xyz"); to ignore x, y and z.
+   * Or SetVariable("classify_bln_numeric_mode", "1"); to set numeric-only mode.
+   * SetVariable may be used before Init, but settings will revert to
+   * defaults on End().
+   *
+   * Note: Must be called after Init(). Only works for non-init variables
+   * (init variables should be passed to Init()).
+   */
+  bool SetVariable(const char* name, const char* value);
+  bool SetDebugVariable(const char* name, const char* value);
+
+  /**
+   * Returns true if the parameter was found among Tesseract parameters.
+   * Fills in value with the value of the parameter.
+   */
+  bool GetIntVariable(const char *name, int *value) const;
+  bool GetBoolVariable(const char *name, bool *value) const;
+  bool GetDoubleVariable(const char *name, double *value) const;
+
+  /**
+   * Returns the pointer to the string that represents the value of the
+   * parameter if it was found among Tesseract parameters.
+   */
+  const char *GetStringVariable(const char *name) const;
+
+  /**
+   * Print Tesseract parameters to the given file.
+   */
+  void PrintVariables(FILE *fp) const;
+
+  /**
+   * Get value of named variable as a string, if it exists.
+   */
+  bool GetVariableAsString(const char *name, STRING *val);
+
+  /**
+   * Instances are now mostly thread-safe and totally independent,
+   * but some global parameters remain. Basically it is safe to use multiple
+   * TessBaseAPIs in different threads in parallel, UNLESS:
+   * you use SetVariable on some of the Params in classify and textord.
+   * If you do, then the effect will be to change it for all your instances.
+   *
+   * Start tesseract. Returns zero on success and -1 on failure.
+   * NOTE that the only members that may be called before Init are those
+   * listed above here in the class definition.
+   *
+   * The datapath must be the name of the tessdata directory.
+   * The language is (usually) an ISO 639-3 string or nullptr will default to eng.
+   * It is entirely safe (and eventually will be efficient too) to call
+   * Init multiple times on the same instance to change language, or just
+   * to reset the classifier.
+   * The language may be a string of the form [~]<lang>[+[~]<lang>]* indicating
+   * that multiple languages are to be loaded. Eg hin+eng will load Hindi and
+   * English. Languages may specify internally that they want to be loaded
+   * with one or more other languages, so the ~ sign is available to override
+   * that. Eg if hin were set to load eng by default, then hin+~eng would force
+   * loading only hin. The number of loaded languages is limited only by
+   * memory, with the caveat that loading additional languages will impact
+   * both speed and accuracy, as there is more work to do to decide on the
+   * applicable language, and there is more chance of hallucinating incorrect
+   * words.
+   * WARNING: On changing languages, all Tesseract parameters are reset
+   * back to their default values. (Which may vary between languages.)
+   * If you have a rare need to set a Variable that controls
+   * initialization for a second call to Init you should explicitly
+   * call End() and then use SetVariable before Init. This is only a very
+   * rare use case, since there are very few uses that require any parameters
+   * to be set before Init.
+   *
+   * If set_only_non_debug_params is true, only params that do not contain
+   * "debug" in the name will be set.
+   */
+  int Init(const char* datapath, const char* language, OcrEngineMode mode,
+           char **configs, int configs_size,
+           const GenericVector<STRING> *vars_vec,
+           const GenericVector<STRING> *vars_values,
+           bool set_only_non_debug_params);
+  int Init(const char* datapath, const char* language, OcrEngineMode oem) {
+    return Init(datapath, language, oem, nullptr, 0, nullptr, nullptr, false);
+  }
+  int Init(const char* datapath, const char* language) {
+    return Init(datapath, language, OEM_DEFAULT, nullptr, 0, nullptr, nullptr, false);
+  }
+  // In-memory version reads the traineddata file directly from the given
+  // data[data_size] array, and/or reads data via a FileReader.
+  int Init(const char* data, int data_size, const char* language,
+           OcrEngineMode mode, char** configs, int configs_size,
+           const GenericVector<STRING>* vars_vec,
+           const GenericVector<STRING>* vars_values,
+           bool set_only_non_debug_params, FileReader reader);
+
+  /**
+   * Returns the languages string used in the last valid initialization.
+   * If the last initialization specified "deu+hin" then that will be
+   * returned. If hin loaded eng automatically as well, then that will
+   * not be included in this list. To find the languages actually
+   * loaded use GetLoadedLanguagesAsVector.
+   * The returned string should NOT be deleted.
+   */
+  const char* GetInitLanguagesAsString() const;
+
+  /**
+   * Returns the loaded languages in the vector of STRINGs.
+   * Includes all languages loaded by the last Init, including those loaded
+   * as dependencies of other loaded languages.
+   */
+  void GetLoadedLanguagesAsVector(GenericVector<STRING>* langs) const;
+
+  /**
+   * Returns the available languages in the sorted vector of STRINGs.
+   */
+  void GetAvailableLanguagesAsVector(GenericVector<STRING>* langs) const;
+
+  /**
+   * Init only the lang model component of Tesseract. The only functions
+   * that work after this init are SetVariable and IsValidWord.
+   * WARNING: temporary! This function will be removed from here and placed
+   * in a separate API at some future time.
+   */
+  int InitLangMod(const char* datapath, const char* language);
+
+  /**
+   * Init only for page layout analysis. Use only for calls to SetImage and
+   * AnalysePage. Calls that attempt recognition will generate an error.
+   */
+  void InitForAnalysePage();
+
+  /**
+   * Read a "config" file containing a set of param, value pairs.
+   * Searches the standard places: tessdata/configs, tessdata/tessconfigs
+   * and also accepts a relative or absolute path name.
+   * Note: only non-init params will be set (init params are set by Init()).
+   */
+  void ReadConfigFile(const char* filename);
+  /** Same as above, but only set debug params from the given config file. */
+  void ReadDebugConfigFile(const char* filename);
+
+  /**
+   * Set the current page segmentation mode. Defaults to PSM_SINGLE_BLOCK.
+   * The mode is stored as an IntParam so it can also be modified by
+   * ReadConfigFile or SetVariable("tessedit_pageseg_mode", mode as string).
+   */
+  void SetPageSegMode(PageSegMode mode);
+
+  /** Return the current page segmentation mode. */
+  PageSegMode GetPageSegMode() const;
+
+  /**
+   * Recognize a rectangle from an image and return the result as a string.
+   * May be called many times for a single Init.
+   * Currently has no error checking.
+   * Greyscale of 8 and color of 24 or 32 bits per pixel may be given.
+   * Palette color images will not work properly and must be converted to
+   * 24 bit.
+   * Binary images of 1 bit per pixel may also be given but they must be
+   * byte packed with the MSB of the first byte being the first pixel, and a
+   * 1 represents WHITE. For binary images set bytes_per_pixel=0.
+   * The recognized text is returned as a char* which is coded
+   * as UTF8 and must be freed with the delete [] operator.
+   *
+   * Note that TesseractRect is the simplified convenience interface.
+   * For advanced uses, use SetImage, (optionally) SetRectangle, Recognize,
+   * and one or more of the Get*Text functions below.
+   */
+  char* TesseractRect(const unsigned char* imagedata,
+                      int bytes_per_pixel, int bytes_per_line,
+                      int left, int top, int width, int height);
+
+  /**
+   * Call between pages or documents etc to free up memory and forget
+   * adaptive data.
+   */
+  void ClearAdaptiveClassifier();
+
+  /**
+   * @defgroup AdvancedAPI Advanced API
+   * The following methods break TesseractRect into pieces, so you can
+   * get hold of the thresholded image, get the text in different formats,
+   * get bounding boxes, confidences etc.
+   */
+   /* @{ */
+
+  /**
+   * Provide an image for Tesseract to recognize. Format is as
+   * TesseractRect above. Copies the image buffer and converts to Pix.
+   * SetImage clears all recognition results, and sets the rectangle to the
+   * full image, so it may be followed immediately by a GetUTF8Text, and it
+   * will automatically perform recognition.
+   */
+  void SetImage(const unsigned char* imagedata, int width, int height,
+                int bytes_per_pixel, int bytes_per_line);
+
+  /**
+   * Provide an image for Tesseract to recognize. As with SetImage above,
+   * Tesseract takes its own copy of the image, so it need not persist until
+   * after Recognize.
+   * Pix vs raw, which to use?
+   * Use Pix where possible. Tesseract uses Pix as its internal representation
+   * and it is therefore more efficient to provide a Pix directly.
+   */
+  void SetImage(Pix* pix);
+
+  /**
+   * Set the resolution of the source image in pixels per inch so font size
+   * information can be calculated in results.  Call this after SetImage().
+   */
+  void SetSourceResolution(int ppi);
+
+  /**
+   * Restrict recognition to a sub-rectangle of the image. Call after SetImage.
+   * Each SetRectangle clears the recogntion results so multiple rectangles
+   * can be recognized with the same image.
+   */
+  void SetRectangle(int left, int top, int width, int height);
+
+  /**
+   * In extreme cases only, usually with a subclass of Thresholder, it
+   * is possible to provide a different Thresholder. The Thresholder may
+   * be preloaded with an image, settings etc, or they may be set after.
+   * Note that Tesseract takes ownership of the Thresholder and will
+   * delete it when it it is replaced or the API is destructed.
+   */
+  void SetThresholder(ImageThresholder* thresholder) {
+    delete thresholder_;
+    thresholder_ = thresholder;
+    ClearResults();
+  }
+
+  /**
+   * Get a copy of the internal thresholded image from Tesseract.
+   * Caller takes ownership of the Pix and must pixDestroy it.
+   * May be called any time after SetImage, or after TesseractRect.
+   */
+  Pix* GetThresholdedImage();
+
+  /**
+   * Get the result of page layout analysis as a leptonica-style
+   * Boxa, Pixa pair, in reading order.
+   * Can be called before or after Recognize.
+   */
+  Boxa* GetRegions(Pixa** pixa);
+
+  /**
+   * Get the textlines as a leptonica-style
+   * Boxa, Pixa pair, in reading order.
+   * Can be called before or after Recognize.
+   * If raw_image is true, then extract from the original image instead of the
+   * thresholded image and pad by raw_padding pixels.
+   * If blockids is not nullptr, the block-id of each line is also returned as an
+   * array of one element per line. delete [] after use.
+   * If paraids is not nullptr, the paragraph-id of each line within its block is
+   * also returned as an array of one element per line. delete [] after use.
+   */
+  Boxa* GetTextlines(bool raw_image, int raw_padding,
+                     Pixa** pixa, int** blockids, int** paraids);
+  /*
+     Helper method to extract from the thresholded image. (most common usage)
+  */
+  Boxa* GetTextlines(Pixa** pixa, int** blockids) {
+    return GetTextlines(false, 0, pixa, blockids, nullptr);
+  }
+
+  /**
+   * Get textlines and strips of image regions as a leptonica-style Boxa, Pixa
+   * pair, in reading order. Enables downstream handling of non-rectangular
+   * regions.
+   * Can be called before or after Recognize.
+   * If blockids is not nullptr, the block-id of each line is also returned as an
+   * array of one element per line. delete [] after use.
+   */
+  Boxa* GetStrips(Pixa** pixa, int** blockids);
+
+  /**
+   * Get the words as a leptonica-style
+   * Boxa, Pixa pair, in reading order.
+   * Can be called before or after Recognize.
+   */
+  Boxa* GetWords(Pixa** pixa);
+
+  /**
+   * Gets the individual connected (text) components (created
+   * after pages segmentation step, but before recognition)
+   * as a leptonica-style Boxa, Pixa pair, in reading order.
+   * Can be called before or after Recognize.
+   * Note: the caller is responsible for calling boxaDestroy()
+   * on the returned Boxa array and pixaDestroy() on cc array.
+   */
+  Boxa* GetConnectedComponents(Pixa** cc);
+
+  /**
+   * Get the given level kind of components (block, textline, word etc.) as a
+   * leptonica-style Boxa, Pixa pair, in reading order.
+   * Can be called before or after Recognize.
+   * If blockids is not nullptr, the block-id of each component is also returned
+   * as an array of one element per component. delete [] after use.
+   * If blockids is not nullptr, the paragraph-id of each component with its block
+   * is also returned as an array of one element per component. delete [] after
+   * use.
+   * If raw_image is true, then portions of the original image are extracted
+   * instead of the thresholded image and padded with raw_padding.
+   * If text_only is true, then only text components are returned.
+   */
+  Boxa* GetComponentImages(PageIteratorLevel level,
+                           bool text_only, bool raw_image,
+                           int raw_padding,
+                           Pixa** pixa, int** blockids, int** paraids);
+  // Helper function to get binary images with no padding (most common usage).
+  Boxa* GetComponentImages(const PageIteratorLevel level,
+                           const bool text_only,
+                           Pixa** pixa, int** blockids) {
+    return GetComponentImages(level, text_only, false, 0, pixa, blockids, nullptr);
+  }
+
+  /**
+   * Returns the scale factor of the thresholded image that would be returned by
+   * GetThresholdedImage() and the various GetX() methods that call
+   * GetComponentImages().
+   * Returns 0 if no thresholder has been set.
+   */
+  int GetThresholdedImageScaleFactor() const;
+
+  /**
+   * Runs page layout analysis in the mode set by SetPageSegMode.
+   * May optionally be called prior to Recognize to get access to just
+   * the page layout results. Returns an iterator to the results.
+   * If merge_similar_words is true, words are combined where suitable for use
+   * with a line recognizer. Use if you want to use AnalyseLayout to find the
+   * textlines, and then want to process textline fragments with an external
+   * line recognizer.
+   * Returns nullptr on error or an empty page.
+   * The returned iterator must be deleted after use.
+   * WARNING! This class points to data held within the TessBaseAPI class, and
+   * therefore can only be used while the TessBaseAPI class still exists and
+   * has not been subjected to a call of Init, SetImage, Recognize, Clear, End
+   * DetectOS, or anything else that changes the internal PAGE_RES.
+   */
+  PageIterator* AnalyseLayout();
+  PageIterator* AnalyseLayout(bool merge_similar_words);
+
+  /**
+   * Recognize the image from SetAndThresholdImage, generating Tesseract
+   * internal structures. Returns 0 on success.
+   * Optional. The Get*Text functions below will call Recognize if needed.
+   * After Recognize, the output is kept internally until the next SetImage.
+   */
+  int Recognize(ETEXT_DESC* monitor);
+
+  /**
+   * Methods to retrieve information after SetAndThresholdImage(),
+   * Recognize() or TesseractRect(). (Recognize is called implicitly if needed.)
+   */
+
+  #ifndef DISABLED_LEGACY_ENGINE
+  /** Variant on Recognize used for testing chopper. */
+  int RecognizeForChopTest(ETEXT_DESC* monitor);
+  #endif
+
+  /**
+   * Turns images into symbolic text.
+   *
+   * filename can point to a single image, a multi-page TIFF,
+   * or a plain text list of image filenames.
+   *
+   * retry_config is useful for debugging. If not nullptr, you can fall
+   * back to an alternate configuration if a page fails for some
+   * reason.
+   *
+   * timeout_millisec terminates processing if any single page
+   * takes too long. Set to 0 for unlimited time.
+   *
+   * renderer is responible for creating the output. For example,
+   * use the TessTextRenderer if you want plaintext output, or
+   * the TessPDFRender to produce searchable PDF.
+   *
+   * If tessedit_page_number is non-negative, will only process that
+   * single page. Works for multi-page tiff file, or filelist.
+   *
+   * Returns true if successful, false on error.
+   */
+  bool ProcessPages(const char* filename, const char* retry_config,
+                    int timeout_millisec, TessResultRenderer* renderer);
+  // Does the real work of ProcessPages.
+  bool ProcessPagesInternal(const char* filename, const char* retry_config,
+                            int timeout_millisec, TessResultRenderer* renderer);
+
+  /**
+   * Turn a single image into symbolic text.
+   *
+   * The pix is the image processed. filename and page_index are
+   * metadata used by side-effect processes, such as reading a box
+   * file or formatting as hOCR.
+   *
+   * See ProcessPages for desciptions of other parameters.
+   */
+  bool ProcessPage(Pix* pix, int page_index, const char* filename,
+                   const char* retry_config, int timeout_millisec,
+                   TessResultRenderer* renderer);
+
+  /**
+   * Get a reading-order iterator to the results of LayoutAnalysis and/or
+   * Recognize. The returned iterator must be deleted after use.
+   * WARNING! This class points to data held within the TessBaseAPI class, and
+   * therefore can only be used while the TessBaseAPI class still exists and
+   * has not been subjected to a call of Init, SetImage, Recognize, Clear, End
+   * DetectOS, or anything else that changes the internal PAGE_RES.
+   */
+  ResultIterator* GetIterator();
+
+  /**
+   * Get a mutable iterator to the results of LayoutAnalysis and/or Recognize.
+   * The returned iterator must be deleted after use.
+   * WARNING! This class points to data held within the TessBaseAPI class, and
+   * therefore can only be used while the TessBaseAPI class still exists and
+   * has not been subjected to a call of Init, SetImage, Recognize, Clear, End
+   * DetectOS, or anything else that changes the internal PAGE_RES.
+   */
+  MutableIterator* GetMutableIterator();
+
+  /**
+   * The recognized text is returned as a char* which is coded
+   * as UTF8 and must be freed with the delete [] operator.
+   */
+  char* GetUTF8Text();
+
+  /**
+   * Make a HTML-formatted string with hOCR markup from the internal
+   * data structures.
+   * page_number is 0-based but will appear in the output as 1-based.
+   * monitor can be used to
+   *  cancel the recognition
+   *  receive progress callbacks
+   * Returned string must be freed with the delete [] operator.
+   */
+  char* GetHOCRText(ETEXT_DESC* monitor, int page_number);
+
+  /**
+   * Make a HTML-formatted string with hOCR markup from the internal
+   * data structures.
+   * page_number is 0-based but will appear in the output as 1-based.
+   * Returned string must be freed with the delete [] operator.
+   */
+  char* GetHOCRText(int page_number);
+
+  /**
+   * Make an XML-formatted string with Alto markup from the internal
+   * data structures.
+   */
+  char* GetAltoText(ETEXT_DESC* monitor, int page_number);
+
+
+  /**
+   * Make an XML-formatted string with Alto markup from the internal
+   * data structures.
+   */
+  char* GetAltoText(int page_number);
+
+  /**
+   * Make a TSV-formatted string from the internal data structures.
+   * page_number is 0-based but will appear in the output as 1-based.
+   * Returned string must be freed with the delete [] operator.
+   */
+  char* GetTSVText(int page_number);
+
+  /**
+   * Make a box file for LSTM training from the internal data structures.
+   * Constructs coordinates in the original image - not just the rectangle.
+   * page_number is a 0-based page index that will appear in the box file.
+   * Returned string must be freed with the delete [] operator.
+   */
+  char* GetLSTMBoxText(int page_number);
+
+  /**
+   * The recognized text is returned as a char* which is coded in the same
+   * format as a box file used in training.
+   * Constructs coordinates in the original image - not just the rectangle.
+   * page_number is a 0-based page index that will appear in the box file.
+   * Returned string must be freed with the delete [] operator.
+   */
+  char* GetBoxText(int page_number);
+
+  /**
+   * The recognized text is returned as a char* which is coded in the same
+   * format as a WordStr box file used in training.
+   * page_number is a 0-based page index that will appear in the box file.
+   * Returned string must be freed with the delete [] operator.
+   */
+  char* GetWordStrBoxText(int page_number);
+
+  /**
+   * The recognized text is returned as a char* which is coded
+   * as UNLV format Latin-1 with specific reject and suspect codes.
+   * Returned string must be freed with the delete [] operator.
+   */
+  char* GetUNLVText();
+
+  /**
+   * Detect the orientation of the input image and apparent script (alphabet).
+   * orient_deg is the detected clockwise rotation of the input image in degrees
+   * (0, 90, 180, 270)
+   * orient_conf is the confidence (15.0 is reasonably confident)
+   * script_name is an ASCII string, the name of the script, e.g. "Latin"
+   * script_conf is confidence level in the script
+   * Returns true on success and writes values to each parameter as an output
+   */
+  bool DetectOrientationScript(int* orient_deg, float* orient_conf,
+                               const char** script_name, float* script_conf);
+
+  /**
+   * The recognized text is returned as a char* which is coded
+   * as UTF8 and must be freed with the delete [] operator.
+   * page_number is a 0-based page index that will appear in the osd file.
+   */
+  char* GetOsdText(int page_number);
+
+  /** Returns the (average) confidence value between 0 and 100. */
+  int MeanTextConf();
+  /**
+   * Returns all word confidences (between 0 and 100) in an array, terminated
+   * by -1.  The calling function must delete [] after use.
+   * The number of confidences should correspond to the number of space-
+   * delimited words in GetUTF8Text.
+   */
+  int* AllWordConfidences();
+
+#ifndef DISABLED_LEGACY_ENGINE
+  /**
+   * Applies the given word to the adaptive classifier if possible.
+   * The word must be SPACE-DELIMITED UTF-8 - l i k e t h i s , so it can
+   * tell the boundaries of the graphemes.
+   * Assumes that SetImage/SetRectangle have been used to set the image
+   * to the given word. The mode arg should be PSM_SINGLE_WORD or
+   * PSM_CIRCLE_WORD, as that will be used to control layout analysis.
+   * The currently set PageSegMode is preserved.
+   * Returns false if adaption was not possible for some reason.
+   */
+  bool AdaptToWordStr(PageSegMode mode, const char* wordstr);
+#endif  //  ndef DISABLED_LEGACY_ENGINE
+
+  /**
+   * Free up recognition results and any stored image data, without actually
+   * freeing any recognition data that would be time-consuming to reload.
+   * Afterwards, you must call SetImage or TesseractRect before doing
+   * any Recognize or Get* operation.
+   */
+  void Clear();
+
+  /**
+   * Close down tesseract and free up all memory. End() is equivalent to
+   * destructing and reconstructing your TessBaseAPI.
+   * Once End() has been used, none of the other API functions may be used
+   * other than Init and anything declared above it in the class definition.
+   */
+  void End();
+
+  /**
+   * Clear any library-level memory caches.
+   * There are a variety of expensive-to-load constant data structures (mostly
+   * language dictionaries) that are cached globally -- surviving the Init()
+   * and End() of individual TessBaseAPI's.  This function allows the clearing
+   * of these caches.
+   **/
+  static void ClearPersistentCache();
+
+  /**
+   * Check whether a word is valid according to Tesseract's language model
+   * @return 0 if the word is invalid, non-zero if valid.
+   * @warning temporary! This function will be removed from here and placed
+   * in a separate API at some future time.
+   */
+  int IsValidWord(const char *word);
+  // Returns true if utf8_character is defined in the UniCharset.
+  bool IsValidCharacter(const char *utf8_character);
+
+
+  bool GetTextDirection(int* out_offset, float* out_slope);
+
+  /** Sets Dict::letter_is_okay_ function to point to the given function. */
+  void SetDictFunc(DictFunc f);
+
+  /** Sets Dict::probability_in_context_ function to point to the given
+   * function.
+   */
+  void SetProbabilityInContextFunc(ProbabilityInContextFunc f);
+
+  /**
+   * Estimates the Orientation And Script of the image.
+   * @return true if the image was processed successfully.
+   */
+  bool DetectOS(OSResults*);
+
+  /**
+   * Return text orientation of each block as determined by an earlier run
+   * of layout analysis.
+   */
+  void GetBlockTextOrientations(int** block_orientation,
+                                bool** vertical_writing);
+
+
+  #ifndef DISABLED_LEGACY_ENGINE
+
+  /** Sets Wordrec::fill_lattice_ function to point to the given function. */
+  void SetFillLatticeFunc(FillLatticeFunc f);
+
+  /** Find lines from the image making the BLOCK_LIST. */
+  BLOCK_LIST* FindLinesCreateBlockList();
+
+  /**
+   * Delete a block list.
+   * This is to keep BLOCK_LIST pointer opaque
+   * and let go of including the other headers.
+   */
+  static void DeleteBlockList(BLOCK_LIST* block_list);
+
+  /** Returns a ROW object created from the input row specification. */
+  static ROW *MakeTessOCRRow(float baseline, float xheight,
+                             float descender, float ascender);
+
+  /** Returns a TBLOB corresponding to the entire input image. */
+  static TBLOB *MakeTBLOB(Pix *pix);
+
+  /**
+   * This method baseline normalizes a TBLOB in-place. The input row is used
+   * for normalization. The denorm is an optional parameter in which the
+   * normalization-antidote is returned.
+   */
+  static void NormalizeTBLOB(TBLOB *tblob, ROW *row, bool numeric_mode);
+
+  /** This method returns the features associated with the input image. */
+  void GetFeaturesForBlob(TBLOB* blob, INT_FEATURE_STRUCT* int_features,
+                          int* num_features, int* feature_outline_index);
+
+  /**
+   * This method returns the row to which a box of specified dimensions would
+   * belong. If no good match is found, it returns nullptr.
+   */
+  static ROW* FindRowForBox(BLOCK_LIST* blocks, int left, int top,
+                            int right, int bottom);
+
+  /**
+   * Method to run adaptive classifier on a blob.
+   * It returns at max num_max_matches results.
+   */
+  void RunAdaptiveClassifier(TBLOB* blob,
+                             int num_max_matches,
+                             int* unichar_ids,
+                             float* ratings,
+                             int* num_matches_returned);
+#endif  // ndef DISABLED_LEGACY_ENGINE
+
+  /** This method returns the string form of the specified unichar. */
+  const char* GetUnichar(int unichar_id);
+
+  /** Return the pointer to the i-th dawg loaded into tesseract_ object. */
+  const Dawg *GetDawg(int i) const;
+
+  /** Return the number of dawgs loaded into tesseract_ object. */
+  int NumDawgs() const;
+
+  Tesseract* tesseract() const { return tesseract_; }
+
+  OcrEngineMode oem() const { return last_oem_requested_; }
+
+  void InitTruthCallback(TruthCallback *cb) { truth_cb_ = cb; }
+
+  void set_min_orientation_margin(double margin);
+ /* @} */
+
+ protected:
+
+  /** Common code for setting the image. Returns true if Init has been called. */
+  TESS_LOCAL bool InternalSetImage();
+
+  /**
+   * Run the thresholder to make the thresholded image. If pix is not nullptr,
+   * the source is thresholded to pix instead of the internal IMAGE.
+   */
+  TESS_LOCAL virtual bool Threshold(Pix** pix);
+
+  /**
+   * Find lines from the image making the BLOCK_LIST.
+   * @return 0 on success.
+   */
+  TESS_LOCAL int FindLines();
+
+  /** Delete the pageres and block list ready for a new page. */
+  void ClearResults();
+
+  /**
+   * Return an LTR Result Iterator -- used only for training, as we really want
+   * to ignore all BiDi smarts at that point.
+   * delete once you're done with it.
+   */
+  TESS_LOCAL LTRResultIterator* GetLTRIterator();
+
+  /**
+   * Return the length of the output text string, as UTF8, assuming
+   * one newline per line and one per block, with a terminator,
+   * and assuming a single character reject marker for each rejected character.
+   * Also return the number of recognized blobs in blob_count.
+   */
+  TESS_LOCAL int TextLength(int* blob_count);
+
+  //// paragraphs.cpp ////////////////////////////////////////////////////
+  TESS_LOCAL void DetectParagraphs(bool after_text_recognition);
+
+  #ifndef DISABLED_LEGACY_ENGINE
+
+  /** @defgroup ocropusAddOns ocropus add-ons */
+  /* @{ */
+
+  /**
+   * Adapt to recognize the current image as the given character.
+   * The image must be preloaded and be just an image of a single character.
+   */
+  TESS_LOCAL void AdaptToCharacter(const char *unichar_repr,
+                                   int length,
+                                   float baseline,
+                                   float xheight,
+                                   float descender,
+                                   float ascender);
+
+  /** Recognize text doing one pass only, using settings for a given pass. */
+  TESS_LOCAL PAGE_RES* RecognitionPass1(BLOCK_LIST* block_list);
+
+  TESS_LOCAL PAGE_RES* RecognitionPass2(BLOCK_LIST* block_list,
+                                        PAGE_RES* pass1_result);
+
+  /**
+   * Extract the OCR results, costs (penalty points for uncertainty),
+   * and the bounding boxes of the characters.
+   */
+  TESS_LOCAL static int TesseractExtractResult(char** text,
+                                    int** lengths,
+                                    float** costs,
+                                    int** x0,
+                                    int** y0,
+                                    int** x1,
+                                    int** y1,
+                                    PAGE_RES* page_res);
+
+  TESS_LOCAL const PAGE_RES* GetPageRes() const { return page_res_; }
+  /* @} */
+#endif  // ndef DISABLED_LEGACY_ENGINE
+
+ protected:
+  Tesseract*        tesseract_;       ///< The underlying data object.
+  Tesseract*        osd_tesseract_;   ///< For orientation & script detection.
+  EquationDetect*   equ_detect_;      ///<The equation detector.
+  FileReader reader_;                 ///< Reads files from any filesystem.
+  ImageThresholder* thresholder_;     ///< Image thresholding module.
+  GenericVector<ParagraphModel *>* paragraph_models_;
+  BLOCK_LIST*       block_list_;      ///< The page layout.
+  PAGE_RES*         page_res_;        ///< The page-level data.
+  STRING*           input_file_;      ///< Name used by training code.
+  STRING*           output_file_;     ///< Name used by debug code.
+  STRING*           datapath_;        ///< Current location of tessdata.
+  STRING*           language_;        ///< Last initialized language.
+  OcrEngineMode last_oem_requested_;  ///< Last ocr language mode requested.
+  bool          recognition_done_;   ///< page_res_ contains recognition data.
+  TruthCallback *truth_cb_;           /// fxn for setting truth_* in WERD_RES
+
+  /**
+   * @defgroup ThresholderParams Thresholder Parameters
+   * Parameters saved from the Thresholder. Needed to rebuild coordinates.
+   */
+  /* @{ */
+  int rect_left_;
+  int rect_top_;
+  int rect_width_;
+  int rect_height_;
+  int image_width_;
+  int image_height_;
+  /* @} */
+
+ private:
+  // A list of image filenames gets special consideration
+  bool ProcessPagesFileList(FILE *fp,
+                            STRING *buf,
+                            const char* retry_config, int timeout_millisec,
+                            TessResultRenderer* renderer,
+                            int tessedit_page_number);
+  // TIFF supports multipage so gets special consideration.
+  bool ProcessPagesMultipageTiff(const unsigned char *data,
+                                 size_t size,
+                                 const char* filename,
+                                 const char* retry_config,
+                                 int timeout_millisec,
+                                 TessResultRenderer* renderer,
+                                 int tessedit_page_number);
+  // There's currently no way to pass a document title from the
+  // Tesseract command line, and we have multiple places that choose
+  // to set the title to an empty string. Using a single named
+  // variable will hopefully reduce confusion if the situation changes
+  // in the future.
+  const char *unknown_title_ = "";
+};  // class TessBaseAPI.
+
+/** Escape a char string - remove &<>"' with HTML codes. */
+STRING HOcrEscape(const char* text);
+}  // namespace tesseract.
+
+#endif  // TESSERACT_API_BASEAPI_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/capi.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/capi.h
new file mode 100644
index 00000000..7ed64ef4
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/capi.h
@@ -0,0 +1,628 @@
+///////////////////////////////////////////////////////////////////////
+// File:        capi.h
+// Description: C-API TessBaseAPI
+//
+// (C) Copyright 2012, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+
+#ifndef API_CAPI_H_
+#define API_CAPI_H_
+
+#if defined(TESSERACT_API_BASEAPI_H_) && !defined(TESS_CAPI_INCLUDE_BASEAPI)
+#  define TESS_CAPI_INCLUDE_BASEAPI
+#endif
+
+#ifdef TESS_CAPI_INCLUDE_BASEAPI
+#  include "baseapi.h"
+#  include "ocrclass.h"
+#  include "pageiterator.h"
+#  include "renderer.h"
+#  include "resultiterator.h"
+#else
+#  include <stdbool.h>
+#  include <stdio.h>
+#  include "platform.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef TESS_CALL
+#  if defined(WIN32)
+#    define TESS_CALL __cdecl
+#  else
+#    define TESS_CALL
+#  endif
+#endif
+
+#ifndef BOOL
+#  define BOOL int
+#  define TRUE 1
+#  define FALSE 0
+#endif
+
+#ifdef TESS_CAPI_INCLUDE_BASEAPI
+typedef tesseract::TessResultRenderer TessResultRenderer;
+typedef tesseract::TessTextRenderer TessTextRenderer;
+typedef tesseract::TessHOcrRenderer TessHOcrRenderer;
+typedef tesseract::TessAltoRenderer TessAltoRenderer;
+typedef tesseract::TessTsvRenderer TessTsvRenderer;
+typedef tesseract::TessPDFRenderer TessPDFRenderer;
+typedef tesseract::TessUnlvRenderer TessUnlvRenderer;
+typedef tesseract::TessBoxTextRenderer TessBoxTextRenderer;
+typedef tesseract::TessWordStrBoxRenderer TessWordStrBoxRenderer;
+typedef tesseract::TessLSTMBoxRenderer TessLSTMBoxRenderer;
+typedef tesseract::TessBaseAPI TessBaseAPI;
+typedef tesseract::PageIterator TessPageIterator;
+typedef tesseract::ResultIterator TessResultIterator;
+typedef tesseract::MutableIterator TessMutableIterator;
+typedef tesseract::ChoiceIterator TessChoiceIterator;
+typedef tesseract::OcrEngineMode TessOcrEngineMode;
+typedef tesseract::PageSegMode TessPageSegMode;
+typedef tesseract::ImageThresholder TessImageThresholder;
+typedef tesseract::PageIteratorLevel TessPageIteratorLevel;
+typedef tesseract::DictFunc TessDictFunc;
+typedef tesseract::ProbabilityInContextFunc TessProbabilityInContextFunc;
+// typedef tesseract::ParamsModelClassifyFunc TessParamsModelClassifyFunc;
+typedef tesseract::FillLatticeFunc TessFillLatticeFunc;
+typedef tesseract::Dawg TessDawg;
+typedef tesseract::TruthCallback TessTruthCallback;
+typedef tesseract::Orientation TessOrientation;
+typedef tesseract::ParagraphJustification TessParagraphJustification;
+typedef tesseract::WritingDirection TessWritingDirection;
+typedef tesseract::TextlineOrder TessTextlineOrder;
+typedef PolyBlockType TessPolyBlockType;
+#else
+typedef struct TessResultRenderer TessResultRenderer;
+typedef struct TessTextRenderer TessTextRenderer;
+typedef struct TessHOcrRenderer TessHOcrRenderer;
+typedef struct TessPDFRenderer TessPDFRenderer;
+typedef struct TessUnlvRenderer TessUnlvRenderer;
+typedef struct TessBoxTextRenderer TessBoxTextRenderer;
+typedef struct TessBaseAPI TessBaseAPI;
+typedef struct TessPageIterator TessPageIterator;
+typedef struct TessResultIterator TessResultIterator;
+typedef struct TessMutableIterator TessMutableIterator;
+typedef struct TessChoiceIterator TessChoiceIterator;
+typedef enum TessOcrEngineMode {
+  OEM_TESSERACT_ONLY,
+  OEM_LSTM_ONLY,
+  OEM_TESSERACT_LSTM_COMBINED,
+  OEM_DEFAULT
+} TessOcrEngineMode;
+typedef enum TessPageSegMode {
+  PSM_OSD_ONLY,
+  PSM_AUTO_OSD,
+  PSM_AUTO_ONLY,
+  PSM_AUTO,
+  PSM_SINGLE_COLUMN,
+  PSM_SINGLE_BLOCK_VERT_TEXT,
+  PSM_SINGLE_BLOCK,
+  PSM_SINGLE_LINE,
+  PSM_SINGLE_WORD,
+  PSM_CIRCLE_WORD,
+  PSM_SINGLE_CHAR,
+  PSM_SPARSE_TEXT,
+  PSM_SPARSE_TEXT_OSD,
+  PSM_RAW_LINE,
+  PSM_COUNT
+} TessPageSegMode;
+typedef enum TessPageIteratorLevel {
+  RIL_BLOCK,
+  RIL_PARA,
+  RIL_TEXTLINE,
+  RIL_WORD,
+  RIL_SYMBOL
+} TessPageIteratorLevel;
+typedef enum TessPolyBlockType {
+  PT_UNKNOWN,
+  PT_FLOWING_TEXT,
+  PT_HEADING_TEXT,
+  PT_PULLOUT_TEXT,
+  PT_EQUATION,
+  PT_INLINE_EQUATION,
+  PT_TABLE,
+  PT_VERTICAL_TEXT,
+  PT_CAPTION_TEXT,
+  PT_FLOWING_IMAGE,
+  PT_HEADING_IMAGE,
+  PT_PULLOUT_IMAGE,
+  PT_HORZ_LINE,
+  PT_VERT_LINE,
+  PT_NOISE,
+  PT_COUNT
+} TessPolyBlockType;
+typedef enum TessOrientation {
+  ORIENTATION_PAGE_UP,
+  ORIENTATION_PAGE_RIGHT,
+  ORIENTATION_PAGE_DOWN,
+  ORIENTATION_PAGE_LEFT
+} TessOrientation;
+typedef enum TessParagraphJustification {
+  JUSTIFICATION_UNKNOWN,
+  JUSTIFICATION_LEFT,
+  JUSTIFICATION_CENTER,
+  JUSTIFICATION_RIGHT
+} TessParagraphJustification;
+typedef enum TessWritingDirection {
+  WRITING_DIRECTION_LEFT_TO_RIGHT,
+  WRITING_DIRECTION_RIGHT_TO_LEFT,
+  WRITING_DIRECTION_TOP_TO_BOTTOM
+} TessWritingDirection;
+typedef enum TessTextlineOrder {
+  TEXTLINE_ORDER_LEFT_TO_RIGHT,
+  TEXTLINE_ORDER_RIGHT_TO_LEFT,
+  TEXTLINE_ORDER_TOP_TO_BOTTOM
+} TessTextlineOrder;
+typedef struct ETEXT_DESC ETEXT_DESC;
+#endif
+
+typedef bool (*TessCancelFunc)(void* cancel_this, int words);
+typedef bool (*TessProgressFunc)(ETEXT_DESC* ths, int left, int right, int top,
+                                 int bottom);
+
+struct Pix;
+struct Boxa;
+struct Pixa;
+
+/* General free functions */
+
+TESS_API const char* TESS_CALL TessVersion();
+TESS_API void TESS_CALL TessDeleteText(const char* text);
+TESS_API void TESS_CALL TessDeleteTextArray(char** arr);
+TESS_API void TESS_CALL TessDeleteIntArray(const int* arr);
+
+/* Renderer API */
+TESS_API TessResultRenderer* TESS_CALL
+TessTextRendererCreate(const char* outputbase);
+TESS_API TessResultRenderer* TESS_CALL
+TessHOcrRendererCreate(const char* outputbase);
+TESS_API TessResultRenderer* TESS_CALL
+TessHOcrRendererCreate2(const char* outputbase, BOOL font_info);
+TESS_API TessResultRenderer* TESS_CALL
+TessAltoRendererCreate(const char* outputbase);
+TESS_API TessResultRenderer* TESS_CALL
+TessTsvRendererCreate(const char* outputbase);
+TESS_API TessResultRenderer* TESS_CALL TessPDFRendererCreate(
+    const char* outputbase, const char* datadir, BOOL textonly);
+TESS_API TessResultRenderer* TESS_CALL
+TessUnlvRendererCreate(const char* outputbase);
+TESS_API TessResultRenderer* TESS_CALL
+TessBoxTextRendererCreate(const char* outputbase);
+TESS_API TessResultRenderer* TESS_CALL
+TessLSTMBoxRendererCreate(const char* outputbase);
+TESS_API TessResultRenderer* TESS_CALL
+TessWordStrBoxRendererCreate(const char* outputbase);
+
+TESS_API void TESS_CALL TessDeleteResultRenderer(TessResultRenderer* renderer);
+TESS_API void TESS_CALL TessResultRendererInsert(TessResultRenderer* renderer,
+                                                 TessResultRenderer* next);
+TESS_API TessResultRenderer* TESS_CALL
+TessResultRendererNext(TessResultRenderer* renderer);
+TESS_API BOOL TESS_CALL TessResultRendererBeginDocument(
+    TessResultRenderer* renderer, const char* title);
+TESS_API BOOL TESS_CALL TessResultRendererAddImage(TessResultRenderer* renderer,
+                                                   TessBaseAPI* api);
+TESS_API BOOL TESS_CALL
+TessResultRendererEndDocument(TessResultRenderer* renderer);
+
+TESS_API const char* TESS_CALL
+TessResultRendererExtention(TessResultRenderer* renderer);
+TESS_API const char* TESS_CALL
+TessResultRendererTitle(TessResultRenderer* renderer);
+TESS_API int TESS_CALL TessResultRendererImageNum(TessResultRenderer* renderer);
+
+/* Base API */
+
+TESS_API TessBaseAPI* TESS_CALL TessBaseAPICreate();
+TESS_API void TESS_CALL TessBaseAPIDelete(TessBaseAPI* handle);
+
+TESS_API size_t TESS_CALL TessBaseAPIGetOpenCLDevice(TessBaseAPI* handle,
+                                                     void** device);
+
+TESS_API void TESS_CALL TessBaseAPISetInputName(TessBaseAPI* handle,
+                                                const char* name);
+TESS_API const char* TESS_CALL TessBaseAPIGetInputName(TessBaseAPI* handle);
+
+TESS_API void TESS_CALL TessBaseAPISetInputImage(TessBaseAPI* handle,
+                                                 struct Pix* pix);
+TESS_API struct Pix* TESS_CALL TessBaseAPIGetInputImage(TessBaseAPI* handle);
+
+TESS_API int TESS_CALL TessBaseAPIGetSourceYResolution(TessBaseAPI* handle);
+TESS_API const char* TESS_CALL TessBaseAPIGetDatapath(TessBaseAPI* handle);
+
+TESS_API void TESS_CALL TessBaseAPISetOutputName(TessBaseAPI* handle,
+                                                 const char* name);
+
+TESS_API BOOL TESS_CALL TessBaseAPISetVariable(TessBaseAPI* handle,
+                                               const char* name,
+                                               const char* value);
+TESS_API BOOL TESS_CALL TessBaseAPISetDebugVariable(TessBaseAPI* handle,
+                                                    const char* name,
+                                                    const char* value);
+
+TESS_API BOOL TESS_CALL TessBaseAPIGetIntVariable(const TessBaseAPI* handle,
+                                                  const char* name, int* value);
+TESS_API BOOL TESS_CALL TessBaseAPIGetBoolVariable(const TessBaseAPI* handle,
+                                                   const char* name,
+                                                   BOOL* value);
+TESS_API BOOL TESS_CALL TessBaseAPIGetDoubleVariable(const TessBaseAPI* handle,
+                                                     const char* name,
+                                                     double* value);
+TESS_API const char* TESS_CALL
+TessBaseAPIGetStringVariable(const TessBaseAPI* handle, const char* name);
+
+TESS_API void TESS_CALL TessBaseAPIPrintVariables(const TessBaseAPI* handle,
+                                                  FILE* fp);
+TESS_API BOOL TESS_CALL TessBaseAPIPrintVariablesToFile(
+    const TessBaseAPI* handle, const char* filename);
+
+#ifdef TESS_CAPI_INCLUDE_BASEAPI
+
+TESS_API BOOL TESS_CALL TessBaseAPIGetVariableAsString(TessBaseAPI* handle,
+                                                       const char* name,
+                                                       STRING* val);
+
+TESS_API int TESS_CALL TessBaseAPIInit(
+    TessBaseAPI* handle, const char* datapath, const char* language,
+    TessOcrEngineMode mode, char** configs, int configs_size,
+    const STRING* vars_vec, size_t vars_vec_size, const STRING* vars_values,
+    size_t vars_values_size, BOOL set_only_init_params);
+
+#endif  // def TESS_CAPI_INCLUDE_BASEAPI
+
+TESS_API int TESS_CALL TessBaseAPIInit1(TessBaseAPI* handle,
+                                        const char* datapath,
+                                        const char* language,
+                                        TessOcrEngineMode oem, char** configs,
+                                        int configs_size);
+TESS_API int TESS_CALL TessBaseAPIInit2(TessBaseAPI* handle,
+                                        const char* datapath,
+                                        const char* language,
+                                        TessOcrEngineMode oem);
+TESS_API int TESS_CALL TessBaseAPIInit3(TessBaseAPI* handle,
+                                        const char* datapath,
+                                        const char* language);
+
+TESS_API int TESS_CALL TessBaseAPIInit4(
+    TessBaseAPI* handle, const char* datapath, const char* language,
+    TessOcrEngineMode mode, char** configs, int configs_size, char** vars_vec,
+    char** vars_values, size_t vars_vec_size, BOOL set_only_non_debug_params);
+
+TESS_API const char* TESS_CALL
+TessBaseAPIGetInitLanguagesAsString(const TessBaseAPI* handle);
+TESS_API char** TESS_CALL
+TessBaseAPIGetLoadedLanguagesAsVector(const TessBaseAPI* handle);
+TESS_API char** TESS_CALL
+TessBaseAPIGetAvailableLanguagesAsVector(const TessBaseAPI* handle);
+
+TESS_API int TESS_CALL TessBaseAPIInitLangMod(TessBaseAPI* handle,
+                                              const char* datapath,
+                                              const char* language);
+TESS_API void TESS_CALL TessBaseAPIInitForAnalysePage(TessBaseAPI* handle);
+
+TESS_API void TESS_CALL TessBaseAPIReadConfigFile(TessBaseAPI* handle,
+                                                  const char* filename);
+TESS_API void TESS_CALL TessBaseAPIReadDebugConfigFile(TessBaseAPI* handle,
+                                                       const char* filename);
+
+TESS_API void TESS_CALL TessBaseAPISetPageSegMode(TessBaseAPI* handle,
+                                                  TessPageSegMode mode);
+TESS_API TessPageSegMode TESS_CALL
+TessBaseAPIGetPageSegMode(const TessBaseAPI* handle);
+
+TESS_API char* TESS_CALL TessBaseAPIRect(TessBaseAPI* handle,
+                                         const unsigned char* imagedata,
+                                         int bytes_per_pixel,
+                                         int bytes_per_line, int left, int top,
+                                         int width, int height);
+
+TESS_API void TESS_CALL TessBaseAPIClearAdaptiveClassifier(TessBaseAPI* handle);
+
+TESS_API void TESS_CALL TessBaseAPISetImage(TessBaseAPI* handle,
+                                            const unsigned char* imagedata,
+                                            int width, int height,
+                                            int bytes_per_pixel,
+                                            int bytes_per_line);
+TESS_API void TESS_CALL TessBaseAPISetImage2(TessBaseAPI* handle,
+                                             struct Pix* pix);
+
+TESS_API void TESS_CALL TessBaseAPISetSourceResolution(TessBaseAPI* handle,
+                                                       int ppi);
+
+TESS_API void TESS_CALL TessBaseAPISetRectangle(TessBaseAPI* handle, int left,
+                                                int top, int width, int height);
+
+#ifdef TESS_CAPI_INCLUDE_BASEAPI
+TESS_API void TESS_CALL TessBaseAPISetThresholder(
+    TessBaseAPI* handle, TessImageThresholder* thresholder);
+#endif
+
+TESS_API struct Pix* TESS_CALL
+TessBaseAPIGetThresholdedImage(TessBaseAPI* handle);
+TESS_API struct Boxa* TESS_CALL TessBaseAPIGetRegions(TessBaseAPI* handle,
+                                                      struct Pixa** pixa);
+TESS_API struct Boxa* TESS_CALL TessBaseAPIGetTextlines(TessBaseAPI* handle,
+                                                        struct Pixa** pixa,
+                                                        int** blockids);
+TESS_API struct Boxa* TESS_CALL
+TessBaseAPIGetTextlines1(TessBaseAPI* handle, BOOL raw_image, int raw_padding,
+                         struct Pixa** pixa, int** blockids, int** paraids);
+TESS_API struct Boxa* TESS_CALL TessBaseAPIGetStrips(TessBaseAPI* handle,
+                                                     struct Pixa** pixa,
+                                                     int** blockids);
+TESS_API struct Boxa* TESS_CALL TessBaseAPIGetWords(TessBaseAPI* handle,
+                                                    struct Pixa** pixa);
+TESS_API struct Boxa* TESS_CALL
+TessBaseAPIGetConnectedComponents(TessBaseAPI* handle, struct Pixa** cc);
+TESS_API struct Boxa* TESS_CALL TessBaseAPIGetComponentImages(
+    TessBaseAPI* handle, TessPageIteratorLevel level, BOOL text_only,
+    struct Pixa** pixa, int** blockids);
+TESS_API struct Boxa* TESS_CALL TessBaseAPIGetComponentImages1(
+    TessBaseAPI* handle, TessPageIteratorLevel level, BOOL text_only,
+    BOOL raw_image, int raw_padding, struct Pixa** pixa, int** blockids,
+    int** paraids);
+
+TESS_API int TESS_CALL
+TessBaseAPIGetThresholdedImageScaleFactor(const TessBaseAPI* handle);
+
+TESS_API TessPageIterator* TESS_CALL
+TessBaseAPIAnalyseLayout(TessBaseAPI* handle);
+
+TESS_API int TESS_CALL TessBaseAPIRecognize(TessBaseAPI* handle,
+                                            ETEXT_DESC* monitor);
+
+#ifndef DISABLED_LEGACY_ENGINE
+TESS_API int TESS_CALL TessBaseAPIRecognizeForChopTest(TessBaseAPI* handle,
+                                                       ETEXT_DESC* monitor);
+#endif
+
+TESS_API BOOL TESS_CALL TessBaseAPIProcessPages(TessBaseAPI* handle,
+                                                const char* filename,
+                                                const char* retry_config,
+                                                int timeout_millisec,
+                                                TessResultRenderer* renderer);
+TESS_API BOOL TESS_CALL TessBaseAPIProcessPage(TessBaseAPI* handle,
+                                               struct Pix* pix, int page_index,
+                                               const char* filename,
+                                               const char* retry_config,
+                                               int timeout_millisec,
+                                               TessResultRenderer* renderer);
+
+TESS_API TessResultIterator* TESS_CALL
+TessBaseAPIGetIterator(TessBaseAPI* handle);
+TESS_API TessMutableIterator* TESS_CALL
+TessBaseAPIGetMutableIterator(TessBaseAPI* handle);
+
+TESS_API char* TESS_CALL TessBaseAPIGetUTF8Text(TessBaseAPI* handle);
+TESS_API char* TESS_CALL TessBaseAPIGetHOCRText(TessBaseAPI* handle,
+                                                int page_number);
+
+TESS_API char* TESS_CALL TessBaseAPIGetAltoText(TessBaseAPI* handle,
+                                                int page_number);
+TESS_API char* TESS_CALL TessBaseAPIGetTsvText(TessBaseAPI* handle,
+                                               int page_number);
+
+TESS_API char* TESS_CALL TessBaseAPIGetBoxText(TessBaseAPI* handle,
+                                               int page_number);
+TESS_API char* TESS_CALL TessBaseAPIGetLSTMBoxText(TessBaseAPI* handle,
+                                                   int page_number);
+TESS_API char* TESS_CALL TessBaseAPIGetWordStrBoxText(TessBaseAPI* handle,
+                                                      int page_number);
+
+TESS_API char* TESS_CALL TessBaseAPIGetUNLVText(TessBaseAPI* handle);
+TESS_API int TESS_CALL TessBaseAPIMeanTextConf(TessBaseAPI* handle);
+
+TESS_API int* TESS_CALL TessBaseAPIAllWordConfidences(TessBaseAPI* handle);
+
+#ifndef DISABLED_LEGACY_ENGINE
+TESS_API BOOL TESS_CALL TessBaseAPIAdaptToWordStr(TessBaseAPI* handle,
+                                                  TessPageSegMode mode,
+                                                  const char* wordstr);
+#endif  // ndef DISABLED_LEGACY_ENGINE
+
+TESS_API void TESS_CALL TessBaseAPIClear(TessBaseAPI* handle);
+TESS_API void TESS_CALL TessBaseAPIEnd(TessBaseAPI* handle);
+
+TESS_API int TESS_CALL TessBaseAPIIsValidWord(TessBaseAPI* handle,
+                                              const char* word);
+TESS_API BOOL TESS_CALL TessBaseAPIGetTextDirection(TessBaseAPI* handle,
+                                                    int* out_offset,
+                                                    float* out_slope);
+
+#ifdef TESS_CAPI_INCLUDE_BASEAPI
+
+TESS_API void TESS_CALL TessBaseAPISetDictFunc(TessBaseAPI* handle,
+                                               TessDictFunc f);
+
+TESS_API void TESS_CALL TessBaseAPIClearPersistentCache(TessBaseAPI* handle);
+
+TESS_API void TESS_CALL TessBaseAPISetProbabilityInContextFunc(
+    TessBaseAPI* handle, TessProbabilityInContextFunc f);
+
+// Call TessDeleteText(*best_script_name) to free memory allocated by this
+// function
+TESS_API BOOL TESS_CALL TessBaseAPIDetectOrientationScript(
+    TessBaseAPI* handle, int* orient_deg, float* orient_conf,
+    const char** script_name, float* script_conf);
+
+#endif  // def TESS_CAPI_INCLUDE_BASEAPI
+
+TESS_API const char* TESS_CALL TessBaseAPIGetUnichar(TessBaseAPI* handle,
+                                                     int unichar_id);
+
+TESS_API void TESS_CALL TessBaseAPISetMinOrientationMargin(TessBaseAPI* handle,
+                                                           double margin);
+
+#ifdef TESS_CAPI_INCLUDE_BASEAPI
+
+TESS_API const TessDawg* TESS_CALL TessBaseAPIGetDawg(const TessBaseAPI* handle,
+                                                      int i);
+
+TESS_API int TESS_CALL TessBaseAPINumDawgs(const TessBaseAPI* handle);
+
+TESS_API TessOcrEngineMode TESS_CALL TessBaseAPIOem(const TessBaseAPI* handle);
+
+TESS_API void TESS_CALL TessBaseAPIInitTruthCallback(TessBaseAPI* handle,
+                                                     TessTruthCallback* cb);
+
+TESS_API void TESS_CALL TessBaseGetBlockTextOrientations(
+    TessBaseAPI* handle, int** block_orientation, bool** vertical_writing);
+
+#endif
+
+/* Page iterator */
+
+TESS_API void TESS_CALL TessPageIteratorDelete(TessPageIterator* handle);
+
+TESS_API TessPageIterator* TESS_CALL
+TessPageIteratorCopy(const TessPageIterator* handle);
+
+TESS_API void TESS_CALL TessPageIteratorBegin(TessPageIterator* handle);
+
+TESS_API BOOL TESS_CALL TessPageIteratorNext(TessPageIterator* handle,
+                                             TessPageIteratorLevel level);
+
+TESS_API BOOL TESS_CALL TessPageIteratorIsAtBeginningOf(
+    const TessPageIterator* handle, TessPageIteratorLevel level);
+
+TESS_API BOOL TESS_CALL TessPageIteratorIsAtFinalElement(
+    const TessPageIterator* handle, TessPageIteratorLevel level,
+    TessPageIteratorLevel element);
+
+TESS_API BOOL TESS_CALL TessPageIteratorBoundingBox(
+    const TessPageIterator* handle, TessPageIteratorLevel level, int* left,
+    int* top, int* right, int* bottom);
+
+TESS_API TessPolyBlockType TESS_CALL
+TessPageIteratorBlockType(const TessPageIterator* handle);
+
+TESS_API struct Pix* TESS_CALL TessPageIteratorGetBinaryImage(
+    const TessPageIterator* handle, TessPageIteratorLevel level);
+
+TESS_API struct Pix* TESS_CALL TessPageIteratorGetImage(
+    const TessPageIterator* handle, TessPageIteratorLevel level, int padding,
+    struct Pix* original_image, int* left, int* top);
+
+TESS_API BOOL TESS_CALL TessPageIteratorBaseline(const TessPageIterator* handle,
+                                                 TessPageIteratorLevel level,
+                                                 int* x1, int* y1, int* x2,
+                                                 int* y2);
+
+TESS_API void TESS_CALL TessPageIteratorOrientation(
+    TessPageIterator* handle, TessOrientation* orientation,
+    TessWritingDirection* writing_direction, TessTextlineOrder* textline_order,
+    float* deskew_angle);
+
+TESS_API void TESS_CALL TessPageIteratorParagraphInfo(
+    TessPageIterator* handle, TessParagraphJustification* justification,
+    BOOL* is_list_item, BOOL* is_crown, int* first_line_indent);
+
+/* Result iterator */
+
+TESS_API void TESS_CALL TessResultIteratorDelete(TessResultIterator* handle);
+TESS_API TessResultIterator* TESS_CALL
+TessResultIteratorCopy(const TessResultIterator* handle);
+TESS_API TessPageIterator* TESS_CALL
+TessResultIteratorGetPageIterator(TessResultIterator* handle);
+TESS_API const TessPageIterator* TESS_CALL
+TessResultIteratorGetPageIteratorConst(const TessResultIterator* handle);
+TESS_API TessChoiceIterator* TESS_CALL
+TessResultIteratorGetChoiceIterator(const TessResultIterator* handle);
+
+TESS_API BOOL TESS_CALL TessResultIteratorNext(TessResultIterator* handle,
+                                               TessPageIteratorLevel level);
+TESS_API char* TESS_CALL TessResultIteratorGetUTF8Text(
+    const TessResultIterator* handle, TessPageIteratorLevel level);
+TESS_API float TESS_CALL TessResultIteratorConfidence(
+    const TessResultIterator* handle, TessPageIteratorLevel level);
+TESS_API const char* TESS_CALL
+TessResultIteratorWordRecognitionLanguage(const TessResultIterator* handle);
+TESS_API const char* TESS_CALL TessResultIteratorWordFontAttributes(
+    const TessResultIterator* handle, BOOL* is_bold, BOOL* is_italic,
+    BOOL* is_underlined, BOOL* is_monospace, BOOL* is_serif, BOOL* is_smallcaps,
+    int* pointsize, int* font_id);
+
+TESS_API BOOL TESS_CALL
+TessResultIteratorWordIsFromDictionary(const TessResultIterator* handle);
+TESS_API BOOL TESS_CALL
+TessResultIteratorWordIsNumeric(const TessResultIterator* handle);
+TESS_API BOOL TESS_CALL
+TessResultIteratorSymbolIsSuperscript(const TessResultIterator* handle);
+TESS_API BOOL TESS_CALL
+TessResultIteratorSymbolIsSubscript(const TessResultIterator* handle);
+TESS_API BOOL TESS_CALL
+TessResultIteratorSymbolIsDropcap(const TessResultIterator* handle);
+
+TESS_API void TESS_CALL TessChoiceIteratorDelete(TessChoiceIterator* handle);
+TESS_API BOOL TESS_CALL TessChoiceIteratorNext(TessChoiceIterator* handle);
+TESS_API const char* TESS_CALL
+TessChoiceIteratorGetUTF8Text(const TessChoiceIterator* handle);
+TESS_API float TESS_CALL
+TessChoiceIteratorConfidence(const TessChoiceIterator* handle);
+
+/* Progress monitor */
+
+TESS_API ETEXT_DESC* TESS_CALL TessMonitorCreate();
+TESS_API void TESS_CALL TessMonitorDelete(ETEXT_DESC* monitor);
+TESS_API void TESS_CALL TessMonitorSetCancelFunc(ETEXT_DESC* monitor,
+                                                 TessCancelFunc cancelFunc);
+TESS_API void TESS_CALL TessMonitorSetCancelThis(ETEXT_DESC* monitor,
+                                                 void* cancelThis);
+TESS_API void* TESS_CALL TessMonitorGetCancelThis(ETEXT_DESC* monitor);
+TESS_API void TESS_CALL
+TessMonitorSetProgressFunc(ETEXT_DESC* monitor, TessProgressFunc progressFunc);
+TESS_API int TESS_CALL TessMonitorGetProgress(ETEXT_DESC* monitor);
+TESS_API void TESS_CALL TessMonitorSetDeadlineMSecs(ETEXT_DESC* monitor,
+                                                    int deadline);
+
+#ifndef DISABLED_LEGACY_ENGINE
+
+#  ifdef TESS_CAPI_INCLUDE_BASEAPI
+TESS_API void TESS_CALL TessBaseAPISetFillLatticeFunc(TessBaseAPI* handle,
+                                                      TessFillLatticeFunc f);
+
+TESS_API void TESS_CALL TessBaseAPIGetFeaturesForBlob(
+    TessBaseAPI* handle, TBLOB* blob, INT_FEATURE_STRUCT* int_features,
+    int* num_features, int* FeatureOutlineIndex);
+
+TESS_API ROW* TESS_CALL TessFindRowForBox(BLOCK_LIST* blocks, int left, int top,
+                                          int right, int bottom);
+
+TESS_API void TESS_CALL TessBaseAPIRunAdaptiveClassifier(
+    TessBaseAPI* handle, TBLOB* blob, int num_max_matches, int* unichar_ids,
+    float* ratings, int* num_matches_returned);
+
+TESS_API ROW* TESS_CALL TessMakeTessOCRRow(float baseline, float xheight,
+                                           float descender, float ascender);
+
+TESS_API TBLOB* TESS_CALL TessMakeTBLOB(Pix* pix);
+
+TESS_API void TESS_CALL TessNormalizeTBLOB(TBLOB* tblob, ROW* row,
+                                           BOOL numeric_mode);
+
+TESS_API BLOCK_LIST* TESS_CALL
+TessBaseAPIFindLinesCreateBlockList(TessBaseAPI* handle);
+
+TESS_API void TESS_CALL TessDeleteBlockList(BLOCK_LIST* block_list);
+
+#  endif  // def TESS_CAPI_INCLUDE_BASEAPI
+
+#endif  // ndef DISABLED_LEGACY_ENGINE
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // API_CAPI_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/genericvector.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/genericvector.h
new file mode 100644
index 00000000..49c389b1
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/genericvector.h
@@ -0,0 +1,1211 @@
+///////////////////////////////////////////////////////////////////////
+// File:        genericvector.h
+// Description: Generic vector class
+// Author:      Daria Antonova
+//
+// (C) Copyright 2007, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+//
+#ifndef TESSERACT_CCUTIL_GENERICVECTOR_H_
+#define TESSERACT_CCUTIL_GENERICVECTOR_H_
+
+#include <algorithm>
+#include <cassert>
+#include <climits>      // for LONG_MAX
+#include <cstdint>      // for uint32_t
+#include <cstdio>
+#include <cstdlib>
+
+#include "helpers.h"
+#include "serialis.h"
+#include "strngs.h"
+#include "tesscallback.h"
+
+// Use PointerVector<T> below in preference to GenericVector<T*>, as that
+// provides automatic deletion of pointers, [De]Serialize that works, and
+// sort that works.
+template <typename T>
+class GenericVector {
+ public:
+  GenericVector() {
+    init(kDefaultVectorSize);
+  }
+  GenericVector(int size, const T& init_val) {
+    init(size);
+    init_to_size(size, init_val);
+  }
+
+  // Copy
+  GenericVector(const GenericVector& other) {
+    this->init(other.size());
+    this->operator+=(other);
+  }
+  GenericVector<T>& operator+=(const GenericVector& other);
+  GenericVector<T>& operator=(const GenericVector& other);
+
+  ~GenericVector();
+
+  // Reserve some memory.
+  void reserve(int size);
+  // Double the size of the internal array.
+  void double_the_size();
+
+  // Resizes to size and sets all values to t.
+  void init_to_size(int size, const T& t);
+  // Resizes to size without any initialization.
+  void resize_no_init(int size) {
+    reserve(size);
+    size_used_ = size;
+  }
+
+  // Return the size used.
+  int size() const {
+    return size_used_;
+  }
+  // Workaround to avoid g++ -Wsign-compare warnings.
+  size_t unsigned_size() const {
+    static_assert(sizeof(size_used_) <= sizeof(size_t),
+                  "Wow! sizeof(size_t) < sizeof(int32_t)!!");
+    assert(0 <= size_used_);
+    return static_cast<size_t>(size_used_);
+  }
+  int size_reserved() const {
+    return size_reserved_;
+  }
+
+  int length() const {
+    return size_used_;
+  }
+
+  // Return true if empty.
+  bool empty() const {
+    return size_used_ == 0;
+  }
+
+  // Return the object from an index.
+  T& get(int index) const;
+  T& back() const;
+  T& operator[](int index) const;
+  // Returns the last object and removes it.
+  T pop_back();
+
+  // Return the index of the T object.
+  // This method NEEDS a compare_callback to be passed to
+  // set_compare_callback.
+  int get_index(const T& object) const;
+
+  // Return true if T is in the array
+  bool contains(const T& object) const;
+
+  // Return true if the index is valid
+  T contains_index(int index) const;
+
+  // Push an element in the end of the array
+  int push_back(T object);
+  void operator+=(const T& t);
+
+  // Push an element in the end of the array if the same
+  // element is not already contained in the array.
+  int push_back_new(const T& object);
+
+  // Push an element in the front of the array
+  // Note: This function is O(n)
+  int push_front(const T& object);
+
+  // Set the value at the given index
+  void set(const T& t, int index);
+
+  // Insert t at the given index, push other elements to the right.
+  void insert(const T& t, int index);
+
+  // Removes an element at the given index and
+  // shifts the remaining elements to the left.
+  void remove(int index);
+
+  // Truncates the array to the given size by removing the end.
+  // If the current size is less, the array is not expanded.
+  void truncate(int size) {
+    if (size < size_used_) {
+      size_used_ = size;
+    }
+  }
+
+  // Add a callback to be called to delete the elements when the array took
+  // their ownership.
+  void set_clear_callback(TessCallback1<T>* cb) {
+    clear_cb_ = cb;
+  }
+
+  // Add a callback to be called to compare the elements when needed (contains,
+  // get_id, ...)
+  void set_compare_callback(TessResultCallback2<bool, T const&, T const&>* cb) {
+    compare_cb_ = cb;
+  }
+
+  // Clear the array, calling the clear callback function if any.
+  // All the owned callbacks are also deleted.
+  // If you don't want the callbacks to be deleted, before calling clear, set
+  // the callback to nullptr.
+  void clear();
+
+  // Delete objects pointed to by data_[i]
+  void delete_data_pointers();
+
+  // This method clears the current object, then, does a shallow copy of
+  // its argument, and finally invalidates its argument.
+  // Callbacks are moved to the current object;
+  void move(GenericVector<T>* from);
+
+  // Read/Write the array to a file. This does _NOT_ read/write the callbacks.
+  // The callback given must be permanent since they will be called more than
+  // once. The given callback will be deleted at the end.
+  // If the callbacks are nullptr, then the data is simply read/written using
+  // fread (and swapping)/fwrite.
+  // Returns false on error or if the callback returns false.
+  // DEPRECATED. Use [De]Serialize[Classes] instead.
+  bool write(FILE* f, TessResultCallback2<bool, FILE*, T const&>* cb) const;
+  bool read(tesseract::TFile* f,
+            TessResultCallback2<bool, tesseract::TFile*, T*>* cb);
+  // Writes a vector of simple types to the given file. Assumes that bitwise
+  // read/write of T will work. Returns false in case of error.
+  // TODO(rays) Change all callers to use TFile and remove deprecated methods.
+  bool Serialize(FILE* fp) const;
+  bool Serialize(tesseract::TFile* fp) const;
+  // Reads a vector of simple types from the given file. Assumes that bitwise
+  // read/write will work with ReverseN according to sizeof(T).
+  // Returns false in case of error.
+  // If swap is true, assumes a big/little-endian swap is needed.
+  // TFile is assumed to know about swapping.
+  bool DeSerialize(bool swap, FILE* fp);
+  bool DeSerialize(tesseract::TFile* fp);
+  // Skips the deserialization of the vector.
+  static bool SkipDeSerialize(tesseract::TFile* fp);
+  // Writes a vector of classes to the given file. Assumes the existence of
+  // bool T::Serialize(FILE* fp) const that returns false in case of error.
+  // Returns false in case of error.
+  bool SerializeClasses(FILE* fp) const;
+  bool SerializeClasses(tesseract::TFile* fp) const;
+  // Reads a vector of classes from the given file. Assumes the existence of
+  // bool T::Deserialize(bool swap, FILE* fp) that returns false in case of
+  // error. Also needs T::T() and T::T(constT&), as init_to_size is used in
+  // this function. Returns false in case of error.
+  // If swap is true, assumes a big/little-endian swap is needed.
+  bool DeSerializeClasses(bool swap, FILE* fp);
+  bool DeSerializeClasses(tesseract::TFile* fp);
+  // Calls SkipDeSerialize on the elements of the vector.
+  static bool SkipDeSerializeClasses(tesseract::TFile* fp);
+
+  // Allocates a new array of double the current_size, copies over the
+  // information from data to the new location, deletes data and returns
+  // the pointed to the new larger array.
+  // This function uses memcpy to copy the data, instead of invoking
+  // operator=() for each element like double_the_size() does.
+  static T* double_the_size_memcpy(int current_size, T* data) {
+    T* data_new = new T[current_size * 2];
+    memcpy(data_new, data, sizeof(T) * current_size);
+    delete[] data;
+    return data_new;
+  }
+
+  // Reverses the elements of the vector.
+  void reverse() {
+    for (int i = 0; i < size_used_ / 2; ++i) {
+      Swap(&data_[i], &data_[size_used_ - 1 - i]);
+    }
+  }
+
+  // Sorts the members of this vector using the less than comparator (cmp_lt),
+  // which compares the values. Useful for GenericVectors to primitive types.
+  // Will not work so great for pointers (unless you just want to sort some
+  // pointers). You need to provide a specialization to sort_cmp to use
+  // your type.
+  void sort();
+
+  // Sort the array into the order defined by the qsort function comparator.
+  // The comparator function is as defined by qsort, ie. it receives pointers
+  // to two Ts and returns negative if the first element is to appear earlier
+  // in the result and positive if it is to appear later, with 0 for equal.
+  void sort(int (*comparator)(const void*, const void*)) {
+    qsort(data_, size_used_, sizeof(*data_), comparator);
+  }
+
+  // Searches the array (assuming sorted in ascending order, using sort()) for
+  // an element equal to target and returns true if it is present.
+  // Use binary_search to get the index of target, or its nearest candidate.
+  bool bool_binary_search(const T& target) const {
+    int index = binary_search(target);
+    if (index >= size_used_) {
+      return false;
+    }
+    return data_[index] == target;
+  }
+  // Searches the array (assuming sorted in ascending order, using sort()) for
+  // an element equal to target and returns the index of the best candidate.
+  // The return value is conceptually the largest index i such that
+  // data_[i] <= target or 0 if target < the whole vector.
+  // NOTE that this function uses operator> so really the return value is
+  // the largest index i such that data_[i] > target is false.
+  int binary_search(const T& target) const {
+    int bottom = 0;
+    int top = size_used_;
+    while (top - bottom > 1) {
+      int middle = (bottom + top) / 2;
+      if (data_[middle] > target) {
+        top = middle;
+      } else {
+        bottom = middle;
+      }
+    }
+    return bottom;
+  }
+
+  // Compact the vector by deleting elements using operator!= on basic types.
+  // The vector must be sorted.
+  void compact_sorted() {
+    if (size_used_ == 0) {
+      return;
+    }
+
+    // First element is in no matter what, hence the i = 1.
+    int last_write = 0;
+    for (int i = 1; i < size_used_; ++i) {
+      // Finds next unique item and writes it.
+      if (data_[last_write] != data_[i]) {
+        data_[++last_write] = data_[i];
+      }
+    }
+    // last_write is the index of a valid data cell, so add 1.
+    size_used_ = last_write + 1;
+  }
+
+  // Compact the vector by deleting elements for which delete_cb returns
+  // true. delete_cb is a permanent callback and will be deleted.
+  void compact(TessResultCallback1<bool, int>* delete_cb) {
+    int new_size = 0;
+    int old_index = 0;
+    // Until the callback returns true, the elements stay the same.
+    while (old_index < size_used_ && !delete_cb->Run(old_index++)) {
+      ++new_size;
+    }
+    // Now just copy anything else that gets false from delete_cb.
+    for (; old_index < size_used_; ++old_index) {
+      if (!delete_cb->Run(old_index)) {
+        data_[new_size++] = data_[old_index];
+      }
+    }
+    size_used_ = new_size;
+    delete delete_cb;
+  }
+
+  T dot_product(const GenericVector<T>& other) const {
+    T result = static_cast<T>(0);
+    for (int i = std::min(size_used_, other.size_used_) - 1; i >= 0; --i) {
+      result += data_[i] * other.data_[i];
+    }
+    return result;
+  }
+
+  // Returns the index of what would be the target_index_th item in the array
+  // if the members were sorted, without actually sorting. Members are
+  // shuffled around, but it takes O(n) time.
+  // NOTE: uses operator< and operator== on the members.
+  int choose_nth_item(int target_index) {
+    // Make sure target_index is legal.
+    if (target_index < 0) {
+      target_index = 0;  // ensure legal
+    } else if (target_index >= size_used_) {
+      target_index = size_used_ - 1;
+    }
+    unsigned int seed = 1;
+    return choose_nth_item(target_index, 0, size_used_, &seed);
+  }
+
+  // Swaps the elements with the given indices.
+  void swap(int index1, int index2) {
+    if (index1 != index2) {
+      T tmp = data_[index1];
+      data_[index1] = data_[index2];
+      data_[index2] = tmp;
+    }
+  }
+  // Returns true if all elements of *this are within the given range.
+  // Only uses operator<
+  bool WithinBounds(const T& rangemin, const T& rangemax) const {
+    for (int i = 0; i < size_used_; ++i) {
+      if (data_[i] < rangemin || rangemax < data_[i]) {
+        return false;
+      }
+    }
+    return true;
+  }
+
+ protected:
+  // Internal recursive version of choose_nth_item.
+  int choose_nth_item(int target_index, int start, int end, unsigned int* seed);
+
+  // Init the object, allocating size memory.
+  void init(int size);
+
+  // We are assuming that the object generally placed in the
+  // vector are small enough that for efficiency it makes sense
+  // to start with a larger initial size.
+  static const int kDefaultVectorSize = 4;
+  int32_t size_used_{};
+  int32_t size_reserved_{};
+  T* data_;
+  TessCallback1<T>* clear_cb_;
+  // Mutable because Run method is not const
+  mutable TessResultCallback2<bool, T const&, T const&>* compare_cb_;
+};
+
+namespace tesseract {
+
+// The default FileReader loads the whole file into the vector of char,
+// returning false on error.
+inline bool LoadDataFromFile(const char* filename, GenericVector<char>* data) {
+  bool result = false;
+  FILE* fp = fopen(filename, "rb");
+  if (fp != nullptr) {
+    fseek(fp, 0, SEEK_END);
+    auto size = std::ftell(fp);
+    fseek(fp, 0, SEEK_SET);
+    // Trying to open a directory on Linux sets size to LONG_MAX. Catch it here.
+    if (size > 0 && size < LONG_MAX) {
+      // reserve an extra byte in case caller wants to append a '\0' character
+      data->reserve(size + 1);
+      data->resize_no_init(size);
+      result = static_cast<long>(fread(&(*data)[0], 1, size, fp)) == size;
+    }
+    fclose(fp);
+  }
+  return result;
+}
+
+inline bool LoadDataFromFile(const STRING& filename,
+                             GenericVector<char>* data) {
+  return LoadDataFromFile(filename.string(), data);
+}
+
+// The default FileWriter writes the vector of char to the filename file,
+// returning false on error.
+inline bool SaveDataToFile(const GenericVector<char>& data,
+                           const STRING& filename) {
+  FILE* fp = fopen(filename.string(), "wb");
+  if (fp == nullptr) {
+    return false;
+  }
+  bool result =
+      static_cast<int>(fwrite(&data[0], 1, data.size(), fp)) == data.size();
+  fclose(fp);
+  return result;
+}
+
+template <typename T>
+bool cmp_eq(T const& t1, T const& t2) {
+  return t1 == t2;
+}
+
+// Used by sort()
+// return < 0 if t1 < t2
+// return 0 if t1 == t2
+// return > 0 if t1 > t2
+template <typename T>
+int sort_cmp(const void* t1, const void* t2) {
+  const T* a = static_cast<const T*>(t1);
+  const T* b = static_cast<const T*>(t2);
+  if (*a < *b) {
+    return -1;
+  }
+  if (*b < *a) {
+    return 1;
+  }
+  return 0;
+}
+
+// Used by PointerVector::sort()
+// return < 0 if t1 < t2
+// return 0 if t1 == t2
+// return > 0 if t1 > t2
+template <typename T>
+int sort_ptr_cmp(const void* t1, const void* t2) {
+  const T* a = *static_cast<T* const*>(t1);
+  const T* b = *static_cast<T* const*>(t2);
+  if (*a < *b) {
+    return -1;
+  }
+  if (*b < *a) {
+    return 1;
+  }
+  return 0;
+}
+
+// Subclass for a vector of pointers. Use in preference to GenericVector<T*>
+// as it provides automatic deletion and correct serialization, with the
+// corollary that all copy operations are deep copies of the pointed-to objects.
+template <typename T>
+class PointerVector : public GenericVector<T*> {
+ public:
+  PointerVector() : GenericVector<T*>() {}
+  explicit PointerVector(int size) : GenericVector<T*>(size) {}
+  ~PointerVector() {
+    // Clear must be called here, even though it is called again by the base,
+    // as the base will call the wrong clear.
+    clear();
+  }
+  // Copy must be deep, as the pointers will be automatically deleted on
+  // destruction.
+  PointerVector(const PointerVector& other) : GenericVector<T*>(other) {
+    this->init(other.size());
+    this->operator+=(other);
+  }
+  PointerVector<T>& operator+=(const PointerVector& other) {
+    this->reserve(this->size_used_ + other.size_used_);
+    for (int i = 0; i < other.size(); ++i) {
+      this->push_back(new T(*other.data_[i]));
+    }
+    return *this;
+  }
+
+  PointerVector<T>& operator=(const PointerVector& other) {
+    if (&other != this) {
+      this->truncate(0);
+      this->operator+=(other);
+    }
+    return *this;
+  }
+
+  // Removes an element at the given index and
+  // shifts the remaining elements to the left.
+  void remove(int index) {
+    delete GenericVector<T*>::data_[index];
+    GenericVector<T*>::remove(index);
+  }
+
+  // Truncates the array to the given size by removing the end.
+  // If the current size is less, the array is not expanded.
+  void truncate(int size) {
+    for (int i = size; i < GenericVector<T*>::size_used_; ++i) {
+      delete GenericVector<T*>::data_[i];
+    }
+    GenericVector<T*>::truncate(size);
+  }
+
+  // Compact the vector by deleting elements for which delete_cb returns
+  // true. delete_cb is a permanent callback and will be deleted.
+  void compact(TessResultCallback1<bool, const T*>* delete_cb) {
+    int new_size = 0;
+    int old_index = 0;
+    // Until the callback returns true, the elements stay the same.
+    while (old_index < GenericVector<T*>::size_used_ &&
+           !delete_cb->Run(GenericVector<T*>::data_[old_index++])) {
+      ++new_size;
+    }
+    // Now just copy anything else that gets false from delete_cb.
+    for (; old_index < GenericVector<T*>::size_used_; ++old_index) {
+      if (!delete_cb->Run(GenericVector<T*>::data_[old_index])) {
+        GenericVector<T*>::data_[new_size++] =
+            GenericVector<T*>::data_[old_index];
+      } else {
+        delete GenericVector<T*>::data_[old_index];
+      }
+    }
+    GenericVector<T*>::size_used_ = new_size;
+    delete delete_cb;
+  }
+
+  // Clear the array, calling the clear callback function if any.
+  // All the owned callbacks are also deleted.
+  // If you don't want the callbacks to be deleted, before calling clear, set
+  // the callback to nullptr.
+  void clear() {
+    GenericVector<T*>::delete_data_pointers();
+    GenericVector<T*>::clear();
+  }
+
+  // Writes a vector of (pointers to) classes to the given file. Assumes the
+  // existence of bool T::Serialize(FILE*) const that returns false in case of
+  // error. There is no Serialize for simple types, as you would have a
+  // normal GenericVector of those.
+  // Returns false in case of error.
+  bool Serialize(FILE* fp) const {
+    int32_t used = GenericVector<T*>::size_used_;
+    if (fwrite(&used, sizeof(used), 1, fp) != 1) {
+      return false;
+    }
+    for (int i = 0; i < used; ++i) {
+      int8_t non_null = GenericVector<T*>::data_[i] != nullptr;
+      if (fwrite(&non_null, sizeof(non_null), 1, fp) != 1) {
+        return false;
+      }
+      if (non_null && !GenericVector<T*>::data_[i]->Serialize(fp)) {
+        return false;
+      }
+    }
+    return true;
+  }
+  bool Serialize(TFile* fp) const {
+    int32_t used = GenericVector<T*>::size_used_;
+    if (fp->FWrite(&used, sizeof(used), 1) != 1) {
+      return false;
+    }
+    for (int i = 0; i < used; ++i) {
+      int8_t non_null = GenericVector<T*>::data_[i] != nullptr;
+      if (fp->FWrite(&non_null, sizeof(non_null), 1) != 1) {
+        return false;
+      }
+      if (non_null && !GenericVector<T*>::data_[i]->Serialize(fp)) {
+        return false;
+      }
+    }
+    return true;
+  }
+  // Reads a vector of (pointers to) classes to the given file. Assumes the
+  // existence of bool T::DeSerialize(bool, Tfile*) const that returns false in
+  // case of error. There is no Serialize for simple types, as you would have a
+  // normal GenericVector of those.
+  // If swap is true, assumes a big/little-endian swap is needed.
+  // Also needs T::T(), as new T is used in this function.
+  // Returns false in case of error.
+  bool DeSerialize(bool swap, FILE* fp) {
+    uint32_t reserved;
+    if (fread(&reserved, sizeof(reserved), 1, fp) != 1) {
+      return false;
+    }
+    if (swap) {
+      Reverse32(&reserved);
+    }
+    // Arbitrarily limit the number of elements to protect against bad data.
+    assert(reserved <= UINT16_MAX);
+    if (reserved > UINT16_MAX) {
+      return false;
+    }
+    GenericVector<T*>::reserve(reserved);
+    truncate(0);
+    for (uint32_t i = 0; i < reserved; ++i) {
+      int8_t non_null;
+      if (fread(&non_null, sizeof(non_null), 1, fp) != 1) {
+        return false;
+      }
+      T* item = nullptr;
+      if (non_null != 0) {
+        item = new T;
+        if (!item->DeSerialize(swap, fp)) {
+          delete item;
+          return false;
+        }
+        this->push_back(item);
+      } else {
+        // Null elements should keep their place in the vector.
+        this->push_back(nullptr);
+      }
+    }
+    return true;
+  }
+  bool DeSerialize(TFile* fp) {
+    int32_t reserved;
+    if (!DeSerializeSize(fp, &reserved)) {
+      return false;
+    }
+    GenericVector<T*>::reserve(reserved);
+    truncate(0);
+    for (int i = 0; i < reserved; ++i) {
+      if (!DeSerializeElement(fp)) {
+        return false;
+      }
+    }
+    return true;
+  }
+  // Enables deserialization of a selection of elements. Note that in order to
+  // retain the integrity of the stream, the caller must call some combination
+  // of DeSerializeElement and DeSerializeSkip of the exact number returned in
+  // *size, assuming a true return.
+  static bool DeSerializeSize(TFile* fp, int32_t* size) {
+    return fp->FReadEndian(size, sizeof(*size), 1) == 1;
+  }
+  // Reads and appends to the vector the next element of the serialization.
+  bool DeSerializeElement(TFile* fp) {
+    int8_t non_null;
+    if (fp->FRead(&non_null, sizeof(non_null), 1) != 1) {
+      return false;
+    }
+    T* item = nullptr;
+    if (non_null != 0) {
+      item = new T;
+      if (!item->DeSerialize(fp)) {
+        delete item;
+        return false;
+      }
+      this->push_back(item);
+    } else {
+      // Null elements should keep their place in the vector.
+      this->push_back(nullptr);
+    }
+    return true;
+  }
+  // Skips the next element of the serialization.
+  static bool DeSerializeSkip(TFile* fp) {
+    int8_t non_null;
+    if (fp->FRead(&non_null, sizeof(non_null), 1) != 1) {
+      return false;
+    }
+    if (non_null != 0) {
+      if (!T::SkipDeSerialize(fp)) {
+        return false;
+      }
+    }
+    return true;
+  }
+
+  // Sorts the items pointed to by the members of this vector using
+  // t::operator<().
+  void sort() {
+    this->GenericVector<T*>::sort(&sort_ptr_cmp<T>);
+  }
+};
+
+}  // namespace tesseract
+
+// A useful vector that uses operator== to do comparisons.
+template <typename T>
+class GenericVectorEqEq : public GenericVector<T> {
+ public:
+  GenericVectorEqEq() {
+    GenericVector<T>::set_compare_callback(
+        NewPermanentTessCallback(tesseract::cmp_eq<T>));
+  }
+  explicit GenericVectorEqEq(int size) : GenericVector<T>(size) {
+    GenericVector<T>::set_compare_callback(
+        NewPermanentTessCallback(tesseract::cmp_eq<T>));
+  }
+};
+
+template <typename T>
+void GenericVector<T>::init(int size) {
+  size_used_ = 0;
+  if (size <= 0) {
+    data_ = nullptr;
+    size_reserved_ = 0;
+  } else {
+    if (size < kDefaultVectorSize) {
+      size = kDefaultVectorSize;
+    }
+    data_ = new T[size];
+    size_reserved_ = size;
+  }
+  clear_cb_ = nullptr;
+  compare_cb_ = nullptr;
+}
+
+template <typename T>
+GenericVector<T>::~GenericVector() {
+  clear();
+}
+
+// Reserve some memory. If the internal array contains elements, they are
+// copied.
+template <typename T>
+void GenericVector<T>::reserve(int size) {
+  if (size_reserved_ >= size || size <= 0) {
+    return;
+  }
+  if (size < kDefaultVectorSize) {
+    size = kDefaultVectorSize;
+  }
+  T* new_array = new T[size];
+  for (int i = 0; i < size_used_; ++i) {
+    new_array[i] = data_[i];
+  }
+  delete[] data_;
+  data_ = new_array;
+  size_reserved_ = size;
+}
+
+template <typename T>
+void GenericVector<T>::double_the_size() {
+  if (size_reserved_ == 0) {
+    reserve(kDefaultVectorSize);
+  } else {
+    reserve(2 * size_reserved_);
+  }
+}
+
+// Resizes to size and sets all values to t.
+template <typename T>
+void GenericVector<T>::init_to_size(int size, const T& t) {
+  reserve(size);
+  size_used_ = size;
+  for (int i = 0; i < size; ++i) {
+    data_[i] = t;
+  }
+}
+
+// Return the object from an index.
+template <typename T>
+T& GenericVector<T>::get(int index) const {
+  assert(index >= 0 && index < size_used_);
+  return data_[index];
+}
+
+template <typename T>
+T& GenericVector<T>::operator[](int index) const {
+  assert(index >= 0 && index < size_used_);
+  return data_[index];
+}
+
+template <typename T>
+T& GenericVector<T>::back() const {
+  assert(size_used_ > 0);
+  return data_[size_used_ - 1];
+}
+// Returns the last object and removes it.
+template <typename T>
+T GenericVector<T>::pop_back() {
+  assert(size_used_ > 0);
+  return data_[--size_used_];
+}
+
+// Return the object from an index.
+template <typename T>
+void GenericVector<T>::set(const T& t, int index) {
+  assert(index >= 0 && index < size_used_);
+  data_[index] = t;
+}
+
+// Shifts the rest of the elements to the right to make
+// space for the new elements and inserts the given element
+// at the specified index.
+template <typename T>
+void GenericVector<T>::insert(const T& t, int index) {
+  assert(index >= 0 && index <= size_used_);
+  if (size_reserved_ == size_used_) {
+    double_the_size();
+  }
+  for (int i = size_used_; i > index; --i) {
+    data_[i] = data_[i - 1];
+  }
+  data_[index] = t;
+  size_used_++;
+}
+
+// Removes an element at the given index and
+// shifts the remaining elements to the left.
+template <typename T>
+void GenericVector<T>::remove(int index) {
+  assert(index >= 0 && index < size_used_);
+  for (int i = index; i < size_used_ - 1; ++i) {
+    data_[i] = data_[i + 1];
+  }
+  size_used_--;
+}
+
+// Return true if the index is valindex
+template <typename T>
+T GenericVector<T>::contains_index(int index) const {
+  return index >= 0 && index < size_used_;
+}
+
+// Return the index of the T object.
+template <typename T>
+int GenericVector<T>::get_index(const T& object) const {
+  for (int i = 0; i < size_used_; ++i) {
+    assert(compare_cb_ != nullptr);
+    if (compare_cb_->Run(object, data_[i])) {
+      return i;
+    }
+  }
+  return -1;
+}
+
+// Return true if T is in the array
+template <typename T>
+bool GenericVector<T>::contains(const T& object) const {
+  return get_index(object) != -1;
+}
+
+// Add an element in the array
+template <typename T>
+int GenericVector<T>::push_back(T object) {
+  int index = 0;
+  if (size_used_ == size_reserved_) {
+    double_the_size();
+  }
+  index = size_used_++;
+  data_[index] = object;
+  return index;
+}
+
+template <typename T>
+int GenericVector<T>::push_back_new(const T& object) {
+  int index = get_index(object);
+  if (index >= 0) {
+    return index;
+  }
+  return push_back(object);
+}
+
+// Add an element in the array (front)
+template <typename T>
+int GenericVector<T>::push_front(const T& object) {
+  if (size_used_ == size_reserved_) {
+    double_the_size();
+  }
+  for (int i = size_used_; i > 0; --i) {
+    data_[i] = data_[i - 1];
+  }
+  data_[0] = object;
+  ++size_used_;
+  return 0;
+}
+
+template <typename T>
+void GenericVector<T>::operator+=(const T& t) {
+  push_back(t);
+}
+
+template <typename T>
+GenericVector<T>& GenericVector<T>::operator+=(const GenericVector& other) {
+  this->reserve(size_used_ + other.size_used_);
+  for (int i = 0; i < other.size(); ++i) {
+    this->operator+=(other.data_[i]);
+  }
+  return *this;
+}
+
+template <typename T>
+GenericVector<T>& GenericVector<T>::operator=(const GenericVector& other) {
+  if (&other != this) {
+    this->truncate(0);
+    this->operator+=(other);
+  }
+  return *this;
+}
+
+// Clear the array, calling the callback function if any.
+template <typename T>
+void GenericVector<T>::clear() {
+  if (size_reserved_ > 0 && clear_cb_ != nullptr) {
+    for (int i = 0; i < size_used_; ++i) {
+      clear_cb_->Run(data_[i]);
+    }
+  }
+  delete[] data_;
+  data_ = nullptr;
+  size_used_ = 0;
+  size_reserved_ = 0;
+  delete clear_cb_;
+  clear_cb_ = nullptr;
+  delete compare_cb_;
+  compare_cb_ = nullptr;
+}
+
+template <typename T>
+void GenericVector<T>::delete_data_pointers() {
+  for (int i = 0; i < size_used_; ++i) {
+    delete data_[i];
+  }
+}
+
+template <typename T>
+bool GenericVector<T>::write(
+    FILE* f, TessResultCallback2<bool, FILE*, T const&>* cb) const {
+  if (fwrite(&size_reserved_, sizeof(size_reserved_), 1, f) != 1) {
+    return false;
+  }
+  if (fwrite(&size_used_, sizeof(size_used_), 1, f) != 1) {
+    return false;
+  }
+  if (cb != nullptr) {
+    for (int i = 0; i < size_used_; ++i) {
+      if (!cb->Run(f, data_[i])) {
+        delete cb;
+        return false;
+      }
+    }
+    delete cb;
+  } else {
+    if (fwrite(data_, sizeof(T), size_used_, f) != unsigned_size()) {
+      return false;
+    }
+  }
+  return true;
+}
+
+template <typename T>
+bool GenericVector<T>::read(
+    tesseract::TFile* f, TessResultCallback2<bool, tesseract::TFile*, T*>* cb) {
+  int32_t reserved;
+  if (f->FReadEndian(&reserved, sizeof(reserved), 1) != 1) {
+    return false;
+  }
+  reserve(reserved);
+  if (f->FReadEndian(&size_used_, sizeof(size_used_), 1) != 1) {
+    return false;
+  }
+  if (cb != nullptr) {
+    for (int i = 0; i < size_used_; ++i) {
+      if (!cb->Run(f, data_ + i)) {
+        delete cb;
+        return false;
+      }
+    }
+    delete cb;
+  } else {
+    if (f->FReadEndian(data_, sizeof(T), size_used_) != size_used_) {
+      return false;
+    }
+  }
+  return true;
+}
+
+// Writes a vector of simple types to the given file. Assumes that bitwise
+// read/write of T will work. Returns false in case of error.
+template <typename T>
+bool GenericVector<T>::Serialize(FILE* fp) const {
+  if (fwrite(&size_used_, sizeof(size_used_), 1, fp) != 1) {
+    return false;
+  }
+  if (fwrite(data_, sizeof(*data_), size_used_, fp) != unsigned_size()) {
+    return false;
+  }
+  return true;
+}
+template <typename T>
+bool GenericVector<T>::Serialize(tesseract::TFile* fp) const {
+  if (fp->FWrite(&size_used_, sizeof(size_used_), 1) != 1) {
+    return false;
+  }
+  if (fp->FWrite(data_, sizeof(*data_), size_used_) != size_used_) {
+    return false;
+  }
+  return true;
+}
+
+// Reads a vector of simple types from the given file. Assumes that bitwise
+// read/write will work with ReverseN according to sizeof(T).
+// Returns false in case of error.
+// If swap is true, assumes a big/little-endian swap is needed.
+template <typename T>
+bool GenericVector<T>::DeSerialize(bool swap, FILE* fp) {
+  uint32_t reserved;
+  if (fread(&reserved, sizeof(reserved), 1, fp) != 1) {
+    return false;
+  }
+  if (swap) {
+    Reverse32(&reserved);
+  }
+  // Arbitrarily limit the number of elements to protect against bad data.
+  assert(reserved <= UINT16_MAX);
+  if (reserved > UINT16_MAX) {
+    return false;
+  }
+  reserve(reserved);
+  size_used_ = reserved;
+  if (fread(data_, sizeof(T), size_used_, fp) != unsigned_size()) {
+    return false;
+  }
+  if (swap) {
+    for (int i = 0; i < size_used_; ++i) {
+      ReverseN(&data_[i], sizeof(data_[i]));
+    }
+  }
+  return true;
+}
+template <typename T>
+bool GenericVector<T>::DeSerialize(tesseract::TFile* fp) {
+  uint32_t reserved;
+  if (fp->FReadEndian(&reserved, sizeof(reserved), 1) != 1) {
+    return false;
+  }
+  // Arbitrarily limit the number of elements to protect against bad data.
+  const uint32_t limit = 50000000;
+  assert(reserved <= limit);
+  if (reserved > limit) {
+    return false;
+  }
+  reserve(reserved);
+  size_used_ = reserved;
+  return fp->FReadEndian(data_, sizeof(T), size_used_) == size_used_;
+}
+template <typename T>
+bool GenericVector<T>::SkipDeSerialize(tesseract::TFile* fp) {
+  uint32_t reserved;
+  if (fp->FReadEndian(&reserved, sizeof(reserved), 1) != 1) {
+    return false;
+  }
+  return (uint32_t)fp->FRead(nullptr, sizeof(T), reserved) == reserved;
+}
+
+// Writes a vector of classes to the given file. Assumes the existence of
+// bool T::Serialize(FILE* fp) const that returns false in case of error.
+// Returns false in case of error.
+template <typename T>
+bool GenericVector<T>::SerializeClasses(FILE* fp) const {
+  if (fwrite(&size_used_, sizeof(size_used_), 1, fp) != 1) {
+    return false;
+  }
+  for (int i = 0; i < size_used_; ++i) {
+    if (!data_[i].Serialize(fp)) {
+      return false;
+    }
+  }
+  return true;
+}
+template <typename T>
+bool GenericVector<T>::SerializeClasses(tesseract::TFile* fp) const {
+  if (fp->FWrite(&size_used_, sizeof(size_used_), 1) != 1) {
+    return false;
+  }
+  for (int i = 0; i < size_used_; ++i) {
+    if (!data_[i].Serialize(fp)) {
+      return false;
+    }
+  }
+  return true;
+}
+
+// Reads a vector of classes from the given file. Assumes the existence of
+// bool T::Deserialize(bool swap, FILE* fp) that returns false in case of
+// error. Also needs T::T() and T::T(constT&), as init_to_size is used in
+// this function. Returns false in case of error.
+// If swap is true, assumes a big/little-endian swap is needed.
+template <typename T>
+bool GenericVector<T>::DeSerializeClasses(bool swap, FILE* fp) {
+  int32_t reserved;
+  if (fread(&reserved, sizeof(reserved), 1, fp) != 1) {
+    return false;
+  }
+  if (swap) {
+    Reverse32(&reserved);
+  }
+  T empty;
+  init_to_size(reserved, empty);
+  for (int i = 0; i < reserved; ++i) {
+    if (!data_[i].DeSerialize(swap, fp)) {
+      return false;
+    }
+  }
+  return true;
+}
+template <typename T>
+bool GenericVector<T>::DeSerializeClasses(tesseract::TFile* fp) {
+  int32_t reserved;
+  if (fp->FReadEndian(&reserved, sizeof(reserved), 1) != 1) {
+    return false;
+  }
+  T empty;
+  init_to_size(reserved, empty);
+  for (int i = 0; i < reserved; ++i) {
+    if (!data_[i].DeSerialize(fp)) {
+      return false;
+    }
+  }
+  return true;
+}
+template <typename T>
+bool GenericVector<T>::SkipDeSerializeClasses(tesseract::TFile* fp) {
+  int32_t reserved;
+  if (fp->FReadEndian(&reserved, sizeof(reserved), 1) != 1) {
+    return false;
+  }
+  for (int i = 0; i < reserved; ++i) {
+    if (!T::SkipDeSerialize(fp)) {
+      return false;
+    }
+  }
+  return true;
+}
+
+// This method clear the current object, then, does a shallow copy of
+// its argument, and finally invalidates its argument.
+template <typename T>
+void GenericVector<T>::move(GenericVector<T>* from) {
+  this->clear();
+  this->data_ = from->data_;
+  this->size_reserved_ = from->size_reserved_;
+  this->size_used_ = from->size_used_;
+  this->compare_cb_ = from->compare_cb_;
+  this->clear_cb_ = from->clear_cb_;
+  from->data_ = nullptr;
+  from->clear_cb_ = nullptr;
+  from->compare_cb_ = nullptr;
+  from->size_used_ = 0;
+  from->size_reserved_ = 0;
+}
+
+template <typename T>
+void GenericVector<T>::sort() {
+  sort(&tesseract::sort_cmp<T>);
+}
+
+// Internal recursive version of choose_nth_item.
+// The algorithm used comes from "Algorithms" by Sedgewick:
+// http://books.google.com/books/about/Algorithms.html?id=idUdqdDXqnAC
+// The principle is to choose a random pivot, and move everything less than
+// the pivot to its left, and everything greater than the pivot to the end
+// of the array, then recurse on the part that contains the desired index, or
+// just return the answer if it is in the equal section in the middle.
+// The random pivot guarantees average linear time for the same reason that
+// n times vector::push_back takes linear time on average.
+// target_index, start and and end are all indices into the full array.
+// Seed is a seed for rand_r for thread safety purposes. Its value is
+// unimportant as the random numbers do not affect the result except
+// between equal answers.
+template <typename T>
+int GenericVector<T>::choose_nth_item(int target_index, int start, int end,
+                                      unsigned int* seed) {
+  // Number of elements to process.
+  int num_elements = end - start;
+  // Trivial cases.
+  if (num_elements <= 1) {
+    return start;
+  }
+  if (num_elements == 2) {
+    if (data_[start] < data_[start + 1]) {
+      return target_index > start ? start + 1 : start;
+    }
+    return target_index > start ? start : start + 1;
+  }
+// Place the pivot at start.
+#ifndef rand_r  // _MSC_VER, ANDROID
+  srand(*seed);
+#  define rand_r(seed) rand()
+#endif  // _MSC_VER
+  int pivot = rand_r(seed) % num_elements + start;
+  swap(pivot, start);
+  // The invariant condition here is that items [start, next_lesser) are less
+  // than the pivot (which is at index next_lesser) and items
+  // [prev_greater, end) are greater than the pivot, with items
+  // [next_lesser, prev_greater) being equal to the pivot.
+  int next_lesser = start;
+  int prev_greater = end;
+  for (int next_sample = start + 1; next_sample < prev_greater;) {
+    if (data_[next_sample] < data_[next_lesser]) {
+      swap(next_lesser++, next_sample++);
+    } else if (data_[next_sample] == data_[next_lesser]) {
+      ++next_sample;
+    } else {
+      swap(--prev_greater, next_sample);
+    }
+  }
+  // Now the invariant is set up, we recurse on just the section that contains
+  // the desired index.
+  if (target_index < next_lesser) {
+    return choose_nth_item(target_index, start, next_lesser, seed);
+  }
+  if (target_index < prev_greater) {
+    return next_lesser;  // In equal bracket.
+  }
+  return choose_nth_item(target_index, prev_greater, end, seed);
+}
+
+#endif  // TESSERACT_CCUTIL_GENERICVECTOR_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/helpers.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/helpers.h
new file mode 100644
index 00000000..9ccde82d
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/helpers.h
@@ -0,0 +1,211 @@
+/* -*-C-*-
+ ********************************************************************************
+ *
+ * File:         helpers.h
+ * Description:  General utility functions
+ * Author:       Daria Antonova
+ *
+ * (c) Copyright 2009, Google Inc.
+ ** Licensed under the Apache License, Version 2.0 (the "License");
+ ** you may not use this file except in compliance with the License.
+ ** You may obtain a copy of the License at
+ ** http://www.apache.org/licenses/LICENSE-2.0
+ ** Unless required by applicable law or agreed to in writing, software
+ ** distributed under the License is distributed on an "AS IS" BASIS,
+ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ** See the License for the specific language governing permissions and
+ ** limitations under the License.
+ *
+ ********************************************************************************/
+
+#ifndef TESSERACT_CCUTIL_HELPERS_H_
+#define TESSERACT_CCUTIL_HELPERS_H_
+
+#include <cassert>
+#include <cstdio>
+#include <cstring>
+#include <functional>
+#include <string>
+
+// TODO(rays) Put the rest of the helpers in the namespace.
+namespace tesseract {
+
+// A simple linear congruential random number generator, using Knuth's
+// constants from:
+// http://en.wikipedia.org/wiki/Linear_congruential_generator.
+class TRand {
+ public:
+  TRand() = default;
+  // Sets the seed to the given value.
+  void set_seed(uint64_t seed) {
+    seed_ = seed;
+  }
+  // Sets the seed using a hash of a string.
+  void set_seed(const std::string& str) {
+    std::hash<std::string> hasher;
+    set_seed(static_cast<uint64_t>(hasher(str)));
+  }
+
+  // Returns an integer in the range 0 to INT32_MAX.
+  int32_t IntRand() {
+    Iterate();
+    return seed_ >> 33;
+  }
+  // Returns a floating point value in the range [-range, range].
+  double SignedRand(double range) {
+    return range * 2.0 * IntRand() / INT32_MAX - range;
+  }
+  // Returns a floating point value in the range [0, range].
+  double UnsignedRand(double range) {
+    return range * IntRand() / INT32_MAX;
+  }
+
+ private:
+  // Steps the generator to the next value.
+  void Iterate() {
+    seed_ *= 6364136223846793005ULL;
+    seed_ += 1442695040888963407ULL;
+  }
+
+  // The current value of the seed.
+  uint64_t seed_{1};
+};
+
+}  // namespace tesseract
+
+// Remove newline (if any) at the end of the string.
+inline void chomp_string(char* str) {
+  int last_index = static_cast<int>(strlen(str)) - 1;
+  while (last_index >= 0 &&
+         (str[last_index] == '\n' || str[last_index] == '\r')) {
+    str[last_index--] = '\0';
+  }
+}
+
+// Advance the current pointer of the file if it points to a newline character.
+inline void SkipNewline(FILE* file) {
+  if (fgetc(file) != '\n') {
+    fseek(file, -1, SEEK_CUR);
+  }
+}
+
+// Swaps the two args pointed to by the pointers.
+// Operator= and copy constructor must work on T.
+template <typename T>
+inline void Swap(T* p1, T* p2) {
+  T tmp(*p2);
+  *p2 = *p1;
+  *p1 = tmp;
+}
+
+// return the smallest multiple of block_size greater than or equal to n.
+inline int RoundUp(int n, int block_size) {
+  return block_size * ((n + block_size - 1) / block_size);
+}
+
+// Clip a numeric value to the interval [lower_bound, upper_bound].
+template <typename T>
+inline T ClipToRange(const T& x, const T& lower_bound, const T& upper_bound) {
+  if (x < lower_bound) {
+    return lower_bound;
+  }
+  if (x > upper_bound) {
+    return upper_bound;
+  }
+  return x;
+}
+
+// Extend the range [lower_bound, upper_bound] to include x.
+template <typename T1, typename T2>
+inline void UpdateRange(const T1& x, T2* lower_bound, T2* upper_bound) {
+  if (x < *lower_bound) {
+    *lower_bound = x;
+  }
+  if (x > *upper_bound) {
+    *upper_bound = x;
+  }
+}
+
+// Decrease lower_bound to be <= x_lo AND increase upper_bound to be >= x_hi.
+template <typename T1, typename T2>
+inline void UpdateRange(const T1& x_lo, const T1& x_hi, T2* lower_bound,
+                        T2* upper_bound) {
+  if (x_lo < *lower_bound) {
+    *lower_bound = x_lo;
+  }
+  if (x_hi > *upper_bound) {
+    *upper_bound = x_hi;
+  }
+}
+
+// Intersect the range [*lower2, *upper2] with the range [lower1, upper1],
+// putting the result back in [*lower2, *upper2].
+// If non-intersecting ranges are given, we end up with *lower2 > *upper2.
+template <typename T>
+inline void IntersectRange(const T& lower1, const T& upper1, T* lower2,
+                           T* upper2) {
+  if (lower1 > *lower2) {
+    *lower2 = lower1;
+  }
+  if (upper1 < *upper2) {
+    *upper2 = upper1;
+  }
+}
+
+// Proper modulo arithmetic operator. Returns a mod b that works for -ve a.
+// For any integer a and positive b, returns r : 0<=r<b and a=n*b + r for
+// some integer n.
+inline int Modulo(int a, int b) {
+  return (a % b + b) % b;
+}
+
+// Integer division operator with rounding that works for negative input.
+// Returns a divided by b, rounded to the nearest integer, without double
+// counting at 0. With simple rounding 1/3 = 0, 0/3 = 0 -1/3 = 0, -2/3 = 0,
+// -3/3 = 0 and -4/3 = -1.
+// I want 1/3 = 0, 0/3 = 0, -1/3 = 0, -2/3 = -1, -3/3 = -1 and -4/3 = -1.
+inline int DivRounded(int a, int b) {
+  if (b < 0) {
+    return -DivRounded(a, -b);
+  }
+  return a >= 0 ? (a + b / 2) / b : (a - b / 2) / b;
+}
+
+// Return a double cast to int with rounding.
+inline int IntCastRounded(double x) {
+  return x >= 0.0 ? static_cast<int>(x + 0.5) : -static_cast<int>(-x + 0.5);
+}
+
+// Return a float cast to int with rounding.
+inline int IntCastRounded(float x) {
+  return x >= 0.0F ? static_cast<int>(x + 0.5F) : -static_cast<int>(-x + 0.5F);
+}
+
+// Reverse the order of bytes in a n byte quantity for big/little-endian switch.
+inline void ReverseN(void* ptr, int num_bytes) {
+  assert(num_bytes == 1 || num_bytes == 2 || num_bytes == 4 || num_bytes == 8);
+  char* cptr = static_cast<char*>(ptr);
+  int halfsize = num_bytes / 2;
+  for (int i = 0; i < halfsize; ++i) {
+    char tmp = cptr[i];
+    cptr[i] = cptr[num_bytes - 1 - i];
+    cptr[num_bytes - 1 - i] = tmp;
+  }
+}
+
+// Reverse the order of bytes in a 16 bit quantity for big/little-endian switch.
+inline void Reverse16(void* ptr) {
+  ReverseN(ptr, 2);
+}
+
+// Reverse the order of bytes in a 32 bit quantity for big/little-endian switch.
+inline void Reverse32(void* ptr) {
+  ReverseN(ptr, 4);
+}
+
+// Reverse the order of bytes in a 64 bit quantity for big/little-endian switch.
+inline void Reverse64(void* ptr) {
+  ReverseN(ptr, 8);
+}
+
+#endif  // TESSERACT_CCUTIL_HELPERS_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/ltrresultiterator.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/ltrresultiterator.h
new file mode 100644
index 00000000..3764b166
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/ltrresultiterator.h
@@ -0,0 +1,228 @@
+///////////////////////////////////////////////////////////////////////
+// File:        ltrresultiterator.h
+// Description: Iterator for tesseract results in strict left-to-right
+//              order that avoids using tesseract internal data structures.
+// Author:      Ray Smith
+// Created:     Fri Feb 26 11:01:06 PST 2010
+//
+// (C) Copyright 2010, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+
+#ifndef TESSERACT_CCMAIN_LTR_RESULT_ITERATOR_H_
+#define TESSERACT_CCMAIN_LTR_RESULT_ITERATOR_H_
+
+#include "pageiterator.h"  // for PageIterator
+#include "platform.h"      // for TESS_API
+#include "publictypes.h"   // for PageIteratorLevel
+#include "unichar.h"       // for StrongScriptDirection
+
+class BLOB_CHOICE_IT;
+class PAGE_RES;
+class WERD_RES;
+
+namespace tesseract {
+
+class Tesseract;
+
+// Class to iterate over tesseract results, providing access to all levels
+// of the page hierarchy, without including any tesseract headers or having
+// to handle any tesseract structures.
+// WARNING! This class points to data held within the TessBaseAPI class, and
+// therefore can only be used while the TessBaseAPI class still exists and
+// has not been subjected to a call of Init, SetImage, Recognize, Clear, End
+// DetectOS, or anything else that changes the internal PAGE_RES.
+// See apitypes.h for the definition of PageIteratorLevel.
+// See also base class PageIterator, which contains the bulk of the interface.
+// LTRResultIterator adds text-specific methods for access to OCR output.
+
+class TESS_API LTRResultIterator : public PageIterator {
+  friend class ChoiceIterator;
+ public:
+  // page_res and tesseract come directly from the BaseAPI.
+  // The rectangle parameters are copied indirectly from the Thresholder,
+  // via the BaseAPI. They represent the coordinates of some rectangle in an
+  // original image (in top-left-origin coordinates) and therefore the top-left
+  // needs to be added to any output boxes in order to specify coordinates
+  // in the original image. See TessBaseAPI::SetRectangle.
+  // The scale and scaled_yres are in case the Thresholder scaled the image
+  // rectangle prior to thresholding. Any coordinates in tesseract's image
+  // must be divided by scale before adding (rect_left, rect_top).
+  // The scaled_yres indicates the effective resolution of the binary image
+  // that tesseract has been given by the Thresholder.
+  // After the constructor, Begin has already been called.
+  LTRResultIterator(PAGE_RES* page_res, Tesseract* tesseract,
+                    int scale, int scaled_yres,
+                    int rect_left, int rect_top,
+                    int rect_width, int rect_height);
+
+  ~LTRResultIterator() override;
+
+  // LTRResultIterators may be copied! This makes it possible to iterate over
+  // all the objects at a lower level, while maintaining an iterator to
+  // objects at a higher level. These constructors DO NOT CALL Begin, so
+  // iterations will continue from the location of src.
+  // TODO: For now the copy constructor and operator= only need the base class
+  // versions, but if new data members are added, don't forget to add them!
+
+  // ============= Moving around within the page ============.
+
+  // See PageIterator.
+
+  // ============= Accessing data ==============.
+
+  // Returns the null terminated UTF-8 encoded text string for the current
+  // object at the given level. Use delete [] to free after use.
+  char* GetUTF8Text(PageIteratorLevel level) const;
+
+  // Set the string inserted at the end of each text line. "\n" by default.
+  void SetLineSeparator(const char *new_line);
+
+  // Set the string inserted at the end of each paragraph. "\n" by default.
+  void SetParagraphSeparator(const char *new_para);
+
+  // Returns the mean confidence of the current object at the given level.
+  // The number should be interpreted as a percent probability. (0.0f-100.0f)
+  float Confidence(PageIteratorLevel level) const;
+
+  // Returns the attributes of the current row.
+  void RowAttributes(float* row_height, float* descenders,
+                     float* ascenders) const;
+
+  // ============= Functions that refer to words only ============.
+
+  // Returns the font attributes of the current word. If iterating at a higher
+  // level object than words, eg textlines, then this will return the
+  // attributes of the first word in that textline.
+  // The actual return value is a string representing a font name. It points
+  // to an internal table and SHOULD NOT BE DELETED. Lifespan is the same as
+  // the iterator itself, ie rendered invalid by various members of
+  // TessBaseAPI, including Init, SetImage, End or deleting the TessBaseAPI.
+  // Pointsize is returned in printers points (1/72 inch.)
+  const char* WordFontAttributes(bool* is_bold,
+                                 bool* is_italic,
+                                 bool* is_underlined,
+                                 bool* is_monospace,
+                                 bool* is_serif,
+                                 bool* is_smallcaps,
+                                 int* pointsize,
+                                 int* font_id) const;
+
+  // Return the name of the language used to recognize this word.
+  // On error, nullptr.  Do not delete this pointer.
+  const char* WordRecognitionLanguage() const;
+
+  // Return the overall directionality of this word.
+  StrongScriptDirection WordDirection() const;
+
+  // Returns true if the current word was found in a dictionary.
+  bool WordIsFromDictionary() const;
+
+  // Returns the number of blanks before the current word.
+  int BlanksBeforeWord() const;
+
+  // Returns true if the current word is numeric.
+  bool WordIsNumeric() const;
+
+  // Returns true if the word contains blamer information.
+  bool HasBlamerInfo() const;
+
+  // Returns the pointer to ParamsTrainingBundle stored in the BlamerBundle
+  // of the current word.
+  const void *GetParamsTrainingBundle() const;
+
+  // Returns a pointer to the string with blamer information for this word.
+  // Assumes that the word's blamer_bundle is not nullptr.
+  const char *GetBlamerDebug() const;
+
+  // Returns a pointer to the string with misadaption information for this word.
+  // Assumes that the word's blamer_bundle is not nullptr.
+  const char *GetBlamerMisadaptionDebug() const;
+
+  // Returns true if a truth string was recorded for the current word.
+  bool HasTruthString() const;
+
+  // Returns true if the given string is equivalent to the truth string for
+  // the current word.
+  bool EquivalentToTruth(const char *str) const;
+
+  // Returns a null terminated UTF-8 encoded truth string for the current word.
+  // Use delete [] to free after use.
+  char* WordTruthUTF8Text() const;
+
+  // Returns a null terminated UTF-8 encoded normalized OCR string for the
+  // current word. Use delete [] to free after use.
+  char* WordNormedUTF8Text() const;
+
+  // Returns a pointer to serialized choice lattice.
+  // Fills lattice_size with the number of bytes in lattice data.
+  const char *WordLattice(int *lattice_size) const;
+
+  // ============= Functions that refer to symbols only ============.
+
+  // Returns true if the current symbol is a superscript.
+  // If iterating at a higher level object than symbols, eg words, then
+  // this will return the attributes of the first symbol in that word.
+  bool SymbolIsSuperscript() const;
+  // Returns true if the current symbol is a subscript.
+  // If iterating at a higher level object than symbols, eg words, then
+  // this will return the attributes of the first symbol in that word.
+  bool SymbolIsSubscript() const;
+  // Returns true if the current symbol is a dropcap.
+  // If iterating at a higher level object than symbols, eg words, then
+  // this will return the attributes of the first symbol in that word.
+  bool SymbolIsDropcap() const;
+
+ protected:
+  const char *line_separator_;
+  const char *paragraph_separator_;
+};
+
+// Class to iterate over the classifier choices for a single RIL_SYMBOL.
+class ChoiceIterator {
+ public:
+  // Construction is from a LTRResultIterator that points to the symbol of
+  // interest. The ChoiceIterator allows a one-shot iteration over the
+  // choices for this symbol and after that is is useless.
+  explicit ChoiceIterator(const LTRResultIterator& result_it);
+  ~ChoiceIterator();
+
+  // Moves to the next choice for the symbol and returns false if there
+  // are none left.
+  bool Next();
+
+  // ============= Accessing data ==============.
+
+  // Returns the null terminated UTF-8 encoded text string for the current
+  // choice.
+  // NOTE: Unlike LTRResultIterator::GetUTF8Text, the return points to an
+  // internal structure and should NOT be delete[]ed to free after use.
+  const char* GetUTF8Text() const;
+
+  // Returns the confidence of the current choice depending on the used language
+  // data. If only LSTM traineddata is used the value range is 0.0f - 1.0f. All
+  // choices for one symbol should roughly add up to 1.0f.
+  // If only traineddata of the legacy engine is used, the number should be
+  // interpreted as a percent probability. (0.0f-100.0f) In this case
+  // probabilities won't add up to 100. Each one stands on its own.
+  float Confidence() const;
+
+ private:
+  // Pointer to the WERD_RES object owned by the API.
+  WERD_RES* word_res_;
+  // Iterator over the blob choices.
+  BLOB_CHOICE_IT* choice_it_;
+};
+
+}  // namespace tesseract.
+
+#endif  // TESSERACT_CCMAIN_LTR_RESULT_ITERATOR_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/ocrclass.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/ocrclass.h
new file mode 100644
index 00000000..d39a6dd6
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/ocrclass.h
@@ -0,0 +1,167 @@
+/**********************************************************************
+ * File:        ocrclass.h
+ * Description: Class definitions and constants for the OCR API.
+ * Author:      Hewlett-Packard Co
+ *
+ * (C) Copyright 1996, Hewlett-Packard Co.
+ ** Licensed under the Apache License, Version 2.0 (the "License");
+ ** you may not use this file except in compliance with the License.
+ ** You may obtain a copy of the License at
+ ** http://www.apache.org/licenses/LICENSE-2.0
+ ** Unless required by applicable law or agreed to in writing, software
+ ** distributed under the License is distributed on an "AS IS" BASIS,
+ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ** See the License for the specific language governing permissions and
+ ** limitations under the License.
+ *
+ **********************************************************************/
+
+/**********************************************************************
+ * This file contains typedefs for all the structures used by
+ * the HP OCR interface.
+ * The structures are designed to allow them to be used with any
+ * structure alignment up to 8.
+ **********************************************************************/
+
+#ifndef CCUTIL_OCRCLASS_H_
+#define CCUTIL_OCRCLASS_H_
+
+#include <chrono>
+#include <ctime>
+#ifdef _WIN32
+#include <winsock2.h> // for timeval
+#endif
+
+/**********************************************************************
+ * EANYCODE_CHAR
+ * Description of a single character. The character code is defined by
+ * the character set of the current font.
+ * Output text is sent as an array of these structures.
+ * Spaces and line endings in the output are represented in the
+ * structures of the surrounding characters. They are not directly
+ * represented as characters.
+ * The first character in a word has a positive value of blanks.
+ * Missing information should be set to the defaults in the comments.
+ * If word bounds are known, but not character bounds, then the top and
+ * bottom of each character should be those of the word. The left of the
+ * first and right of the last char in each word should be set. All other
+ * lefts and rights should be set to -1.
+ * If set, the values of right and bottom are left+width and top+height.
+ * Most of the members come directly from the parameters to ocr_append_char.
+ * The formatting member uses the enhancement parameter and combines the
+ * line direction stuff into the top 3 bits.
+ * The coding is 0=RL char, 1=LR char, 2=DR NL, 3=UL NL, 4=DR Para,
+ * 5=UL Para, 6=TB char, 7=BT char. API users do not need to know what
+ * the coding is, only that it is backwards compatible with the previous
+ * version.
+ **********************************************************************/
+
+typedef struct { /*single character */
+  // It should be noted that the format for char_code for version 2.0 and beyond
+  // is UTF8 which means that ASCII characters will come out as one structure
+  // but other characters will be returned in two or more instances of this
+  // structure with a single byte of the  UTF8 code in each, but each will have
+  // the same bounding box. Programs which want to handle languagues with
+  // different characters sets will need to handle extended characters
+  // appropriately, but *all* code needs to be prepared to receive UTF8 coded
+  // characters for characters such as bullet and fancy quotes.
+  uint16_t char_code; /*character itself */
+  int16_t left;       /*of char (-1) */
+  int16_t right;      /*of char (-1) */
+  int16_t top;        /*of char (-1) */
+  int16_t bottom;     /*of char (-1) */
+  int16_t font_index; /*what font (0) */
+  uint8_t confidence; /*0=perfect, 100=reject (0/100) */
+  uint8_t point_size; /*of char, 72=i inch, (10) */
+  int8_t blanks;      /*no of spaces before this char (1) */
+  uint8_t formatting; /*char formatting (0) */
+} EANYCODE_CHAR;      /*single character */
+
+/**********************************************************************
+ * ETEXT_DESC
+ * Description of the output of the OCR engine.
+ * This structure is used as both a progress monitor and the final
+ * output header, since it needs to be a valid progress monitor while
+ * the OCR engine is storing its output to shared memory.
+ * During progress, all the buffer info is -1.
+ * Progress starts at 0 and increases to 100 during OCR. No other constraint.
+ * Additionally the progress callback contains the bounding box of the word that
+ * is currently being processed.
+ * Every progress callback, the OCR engine must set ocr_alive to 1.
+ * The HP side will set ocr_alive to 0. Repeated failure to reset
+ * to 1 indicates that the OCR engine is dead.
+ * If the cancel function is not null then it is called with the number of
+ * user words found. If it returns true then operation is cancelled.
+ **********************************************************************/
+class ETEXT_DESC;
+
+using CANCEL_FUNC = bool (*)(void*, int);
+using PROGRESS_FUNC = bool (*)(int, int, int, int, int);
+using PROGRESS_FUNC2 = bool (*)(ETEXT_DESC*, int, int, int, int);
+
+class ETEXT_DESC {  // output header
+ public:
+  int16_t count{0};     /// chars in this buffer(0)
+  int16_t progress{0};  /// percent complete increasing (0-100)
+  /** Progress monitor covers word recognition and it does not cover layout
+   * analysis.
+   * See Ray comment in https://github.com/tesseract-ocr/tesseract/pull/27 */
+  int8_t more_to_come{0};        /// true if not last
+  volatile int8_t ocr_alive{0};  /// ocr sets to 1, HP 0
+  int8_t err_code{0};            /// for errcode use
+  CANCEL_FUNC cancel{nullptr};   /// returns true to cancel
+  PROGRESS_FUNC progress_callback{
+      nullptr};                       /// called whenever progress increases
+  PROGRESS_FUNC2 progress_callback2;  /// monitor-aware progress callback
+  void* cancel_this{nullptr};         /// this or other data for cancel
+  struct timeval end_time;
+  /// Time to stop. Expected to be set only
+  /// by call to set_deadline_msecs().
+  EANYCODE_CHAR text[1]{};  /// character data
+
+  ETEXT_DESC() : progress_callback2(&default_progress_func) {
+    auto chrono_end_time = std::chrono::time_point<std::chrono::steady_clock,
+                                                   std::chrono::milliseconds>();
+    timePointToTimeval(chrono_end_time, &end_time);
+  }
+
+  // Sets the end time to be deadline_msecs milliseconds from now.
+  void set_deadline_msecs(int32_t deadline_msecs) {
+    if (deadline_msecs > 0) {
+      auto chrono_end_time = std::chrono::steady_clock::now() +
+                             std::chrono::milliseconds(deadline_msecs);
+      timePointToTimeval(chrono_end_time, &end_time);
+    }
+  }
+
+  // Returns false if we've not passed the end_time, or have not set a deadline.
+  bool deadline_exceeded() const {
+    if (end_time.tv_sec == 0 && end_time.tv_usec == 0)
+      return false;
+    auto chrono_now = std::chrono::steady_clock::now();
+    struct timeval now;
+    timePointToTimeval(chrono_now, &now);
+    return (now.tv_sec > end_time.tv_sec ||
+            (now.tv_sec == end_time.tv_sec && now.tv_usec > end_time.tv_usec));
+  }
+
+ private:
+  static void timePointToTimeval(
+      std::chrono::steady_clock::time_point chrono_point, struct timeval* tv) {
+    auto millisecs = std::chrono::duration_cast<std::chrono::milliseconds>(
+        chrono_point.time_since_epoch());
+    tv->tv_sec = millisecs.count() / 1000;
+    tv->tv_usec = (millisecs.count() % 1000) * 1000;
+  }
+
+  static bool default_progress_func(ETEXT_DESC* ths, int left, int right,
+                                    int top, int bottom) {
+    if (ths->progress_callback != nullptr) {
+      return (*(ths->progress_callback))(ths->progress, left, right, top,
+                                         bottom);
+    }
+    return true;
+  }
+};
+
+#endif  // CCUTIL_OCRCLASS_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/osdetect.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/osdetect.h
new file mode 100644
index 00000000..c0864c40
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/osdetect.h
@@ -0,0 +1,140 @@
+///////////////////////////////////////////////////////////////////////
+// File:        osdetect.h
+// Description: Orientation and script detection.
+// Author:      Samuel Charron
+//              Ranjith Unnikrishnan
+//
+// (C) Copyright 2008, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+
+#ifndef TESSERACT_CCMAIN_OSDETECT_H_
+#define TESSERACT_CCMAIN_OSDETECT_H_
+
+#include "platform.h"  // for TESS_API
+
+class BLOBNBOX;
+class BLOBNBOX_CLIST;
+class BLOB_CHOICE_LIST;
+class STRING;
+class TO_BLOCK_LIST;
+class UNICHARSET;
+template <typename T> class GenericVector;
+
+namespace tesseract {
+class Tesseract;
+}
+
+// Max number of scripts in ICU + "NULL" + Japanese and Korean + Fraktur
+const int kMaxNumberOfScripts = 116 + 1 + 2 + 1;
+
+struct OSBestResult {
+  OSBestResult() : orientation_id(0), script_id(0), sconfidence(0.0),
+                   oconfidence(0.0) {}
+  int orientation_id;
+  int script_id;
+  float sconfidence;
+  float oconfidence;
+};
+
+struct OSResults {
+  OSResults() : unicharset(nullptr) {
+    for (int i = 0; i < 4; ++i) {
+      for (int j = 0; j < kMaxNumberOfScripts; ++j)
+        scripts_na[i][j] = 0;
+      orientations[i] = 0;
+    }
+  }
+  void update_best_orientation();
+  // Set the estimate of the orientation to the given id.
+  void set_best_orientation(int orientation_id);
+  // Update/Compute the best estimate of the script assuming the given
+  // orientation id.
+  void update_best_script(int orientation_id);
+  // Return the index of the script with the highest score for this orientation.
+  TESS_API int get_best_script(int orientation_id) const;
+  // Accumulate scores with given OSResults instance and update the best script.
+  void accumulate(const OSResults& osr);
+
+  // Print statistics.
+  void print_scores(void) const;
+  void print_scores(int orientation_id) const;
+
+  // Array holding scores for each orientation id [0,3].
+  // Orientation ids [0..3] map to [0, 270, 180, 90] degree orientations of the
+  // page respectively, where the values refer to the amount of clockwise
+  // rotation to be applied to the page for the text to be upright and readable.
+  float orientations[4];
+  // Script confidence scores for each of 4 possible orientations.
+  float scripts_na[4][kMaxNumberOfScripts];
+
+  UNICHARSET* unicharset;
+  OSBestResult best_result;
+};
+
+class OrientationDetector {
+ public:
+  OrientationDetector(const GenericVector<int>* allowed_scripts,
+                      OSResults* results);
+  bool detect_blob(BLOB_CHOICE_LIST* scores);
+  int get_orientation();
+ private:
+  OSResults* osr_;
+  const GenericVector<int>* allowed_scripts_;
+};
+
+class ScriptDetector {
+ public:
+  ScriptDetector(const GenericVector<int>* allowed_scripts,
+                 OSResults* osr, tesseract::Tesseract* tess);
+  void detect_blob(BLOB_CHOICE_LIST* scores);
+  bool must_stop(int orientation);
+ private:
+  OSResults* osr_;
+  static const char* korean_script_;
+  static const char* japanese_script_;
+  static const char* fraktur_script_;
+  int korean_id_;
+  int japanese_id_;
+  int katakana_id_;
+  int hiragana_id_;
+  int han_id_;
+  int hangul_id_;
+  int latin_id_;
+  int fraktur_id_;
+  tesseract::Tesseract* tess_;
+  const GenericVector<int>* allowed_scripts_;
+};
+
+int orientation_and_script_detection(STRING& filename,
+                                     OSResults*,
+                                     tesseract::Tesseract*);
+
+int os_detect(TO_BLOCK_LIST* port_blocks,
+              OSResults* osr,
+              tesseract::Tesseract* tess);
+
+int os_detect_blobs(const GenericVector<int>* allowed_scripts,
+                    BLOBNBOX_CLIST* blob_list,
+                    OSResults* osr,
+                    tesseract::Tesseract* tess);
+
+bool os_detect_blob(BLOBNBOX* bbox, OrientationDetector* o,
+                    ScriptDetector* s, OSResults*,
+                    tesseract::Tesseract* tess);
+
+// Helper method to convert an orientation index to its value in degrees.
+// The value represents the amount of clockwise rotation in degrees that must be
+// applied for the text to be upright (readable).
+TESS_API int OrientationIdToValue(const int& id);
+
+#endif  // TESSERACT_CCMAIN_OSDETECT_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/pageiterator.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/pageiterator.h
new file mode 100644
index 00000000..53581428
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/pageiterator.h
@@ -0,0 +1,364 @@
+///////////////////////////////////////////////////////////////////////
+// File:        pageiterator.h
+// Description: Iterator for tesseract page structure that avoids using
+//              tesseract internal data structures.
+// Author:      Ray Smith
+// Created:     Fri Feb 26 11:01:06 PST 2010
+//
+// (C) Copyright 2010, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+
+#ifndef TESSERACT_CCMAIN_PAGEITERATOR_H_
+#define TESSERACT_CCMAIN_PAGEITERATOR_H_
+
+#include "platform.h"
+#include "publictypes.h"
+
+struct BlamerBundle;
+class C_BLOB_IT;
+class PAGE_RES;
+class PAGE_RES_IT;
+class WERD;
+struct Pix;
+struct Pta;
+
+namespace tesseract {
+
+class Tesseract;
+
+/**
+ * Class to iterate over tesseract page structure, providing access to all
+ * levels of the page hierarchy, without including any tesseract headers or
+ * having to handle any tesseract structures.
+ * WARNING! This class points to data held within the TessBaseAPI class, and
+ * therefore can only be used while the TessBaseAPI class still exists and
+ * has not been subjected to a call of Init, SetImage, Recognize, Clear, End
+ * DetectOS, or anything else that changes the internal PAGE_RES.
+ * See apitypes.h for the definition of PageIteratorLevel.
+ * See also ResultIterator, derived from PageIterator, which adds in the
+ * ability to access OCR output with text-specific methods.
+ */
+
+class TESS_API PageIterator {
+ public:
+  /**
+   * page_res and tesseract come directly from the BaseAPI.
+   * The rectangle parameters are copied indirectly from the Thresholder,
+   * via the BaseAPI. They represent the coordinates of some rectangle in an
+   * original image (in top-left-origin coordinates) and therefore the top-left
+   * needs to be added to any output boxes in order to specify coordinates
+   * in the original image. See TessBaseAPI::SetRectangle.
+   * The scale and scaled_yres are in case the Thresholder scaled the image
+   * rectangle prior to thresholding. Any coordinates in tesseract's image
+   * must be divided by scale before adding (rect_left, rect_top).
+   * The scaled_yres indicates the effective resolution of the binary image
+   * that tesseract has been given by the Thresholder.
+   * After the constructor, Begin has already been called.
+   */
+  PageIterator(PAGE_RES* page_res, Tesseract* tesseract,
+               int scale, int scaled_yres,
+               int rect_left, int rect_top,
+               int rect_width, int rect_height);
+  virtual ~PageIterator();
+
+  /**
+   * Page/ResultIterators may be copied! This makes it possible to iterate over
+   * all the objects at a lower level, while maintaining an iterator to
+   * objects at a higher level. These constructors DO NOT CALL Begin, so
+   * iterations will continue from the location of src.
+   */
+  PageIterator(const PageIterator& src);
+  const PageIterator& operator=(const PageIterator& src);
+
+  /** Are we positioned at the same location as other? */
+  bool PositionedAtSameWord(const PAGE_RES_IT* other) const;
+
+  // ============= Moving around within the page ============.
+
+  /**
+   * Moves the iterator to point to the start of the page to begin an
+   * iteration.
+   */
+  virtual void Begin();
+
+  /**
+   * Moves the iterator to the beginning of the paragraph.
+   * This class implements this functionality by moving it to the zero indexed
+   * blob of the first (leftmost) word on the first row of the paragraph.
+   */
+  virtual void RestartParagraph();
+
+  /**
+   * Return whether this iterator points anywhere in the first textline of a
+   * paragraph.
+   */
+  bool IsWithinFirstTextlineOfParagraph() const;
+
+  /**
+   * Moves the iterator to the beginning of the text line.
+   * This class implements this functionality by moving it to the zero indexed
+   * blob of the first (leftmost) word of the row.
+   */
+  virtual void RestartRow();
+
+  /**
+   * Moves to the start of the next object at the given level in the
+   * page hierarchy, and returns false if the end of the page was reached.
+   * NOTE that RIL_SYMBOL will skip non-text blocks, but all other
+   * PageIteratorLevel level values will visit each non-text block once.
+   * Think of non text blocks as containing a single para, with a single line,
+   * with a single imaginary word.
+   * Calls to Next with different levels may be freely intermixed.
+   * This function iterates words in right-to-left scripts correctly, if
+   * the appropriate language has been loaded into Tesseract.
+   */
+  virtual bool Next(PageIteratorLevel level);
+
+  /**
+   * Returns true if the iterator is at the start of an object at the given
+   * level.
+   *
+   * For instance, suppose an iterator it is pointed to the first symbol of the
+   * first word of the third line of the second paragraph of the first block in
+   * a page, then:
+   *   it.IsAtBeginningOf(RIL_BLOCK) = false
+   *   it.IsAtBeginningOf(RIL_PARA) = false
+   *   it.IsAtBeginningOf(RIL_TEXTLINE) = true
+   *   it.IsAtBeginningOf(RIL_WORD) = true
+   *   it.IsAtBeginningOf(RIL_SYMBOL) = true
+   */
+  virtual bool IsAtBeginningOf(PageIteratorLevel level) const;
+
+  /**
+   * Returns whether the iterator is positioned at the last element in a
+   * given level. (e.g. the last word in a line, the last line in a block)
+   *
+   *     Here's some two-paragraph example
+   *   text.  It starts off innocuously
+   *   enough but quickly turns bizarre.
+   *     The author inserts a cornucopia
+   *   of words to guard against confused
+   *   references.
+   *
+   * Now take an iterator it pointed to the start of "bizarre."
+   *  it.IsAtFinalElement(RIL_PARA, RIL_SYMBOL) = false
+   *  it.IsAtFinalElement(RIL_PARA, RIL_WORD) = true
+   *  it.IsAtFinalElement(RIL_BLOCK, RIL_WORD) = false
+   */
+  virtual bool IsAtFinalElement(PageIteratorLevel level,
+                                PageIteratorLevel element) const;
+
+  /**
+   * Returns whether this iterator is positioned
+   *   before other:   -1
+   *   equal to other:  0
+   *   after other:     1
+   */
+  int Cmp(const PageIterator &other) const;
+
+  // ============= Accessing data ==============.
+  // Coordinate system:
+  // Integer coordinates are at the cracks between the pixels.
+  // The top-left corner of the top-left pixel in the image is at (0,0).
+  // The bottom-right corner of the bottom-right pixel in the image is at
+  // (width, height).
+  // Every bounding box goes from the top-left of the top-left contained
+  // pixel to the bottom-right of the bottom-right contained pixel, so
+  // the bounding box of the single top-left pixel in the image is:
+  // (0,0)->(1,1).
+  // If an image rectangle has been set in the API, then returned coordinates
+  // relate to the original (full) image, rather than the rectangle.
+
+  /**
+   * Controls what to include in a bounding box. Bounding boxes of all levels
+   * between RIL_WORD and RIL_BLOCK can include or exclude potential diacritics.
+   * Between layout analysis and recognition, it isn't known where all
+   * diacritics belong, so this control is used to include or exclude some
+   * diacritics that are above or below the main body of the word. In most cases
+   * where the placement is obvious, and after recognition, it doesn't make as
+   * much difference, as the diacritics will already be included in the word.
+   */
+  void SetBoundingBoxComponents(bool include_upper_dots,
+                                bool include_lower_dots) {
+    include_upper_dots_ = include_upper_dots;
+    include_lower_dots_ = include_lower_dots;
+  }
+
+  /**
+   * Returns the bounding rectangle of the current object at the given level.
+   * See comment on coordinate system above.
+   * Returns false if there is no such object at the current position.
+   * The returned bounding box is guaranteed to match the size and position
+   * of the image returned by GetBinaryImage, but may clip foreground pixels
+   * from a grey image. The padding argument to GetImage can be used to expand
+   * the image to include more foreground pixels. See GetImage below.
+   */
+  bool BoundingBox(PageIteratorLevel level,
+                   int* left, int* top, int* right, int* bottom) const;
+  bool BoundingBox(PageIteratorLevel level, int padding,
+                   int* left, int* top, int* right, int* bottom) const;
+  /**
+   * Returns the bounding rectangle of the object in a coordinate system of the
+   * working image rectangle having its origin at (rect_left_, rect_top_) with
+   * respect to the original image and is scaled by a factor scale_.
+   */
+  bool BoundingBoxInternal(PageIteratorLevel level,
+                           int* left, int* top, int* right, int* bottom) const;
+
+  /** Returns whether there is no object of a given level. */
+  bool Empty(PageIteratorLevel level) const;
+
+  /**
+   * Returns the type of the current block. See apitypes.h for
+   * PolyBlockType.
+   */
+  PolyBlockType BlockType() const;
+
+  /**
+   * Returns the polygon outline of the current block. The returned Pta must
+   * be ptaDestroy-ed after use. Note that the returned Pta lists the vertices
+   * of the polygon, and the last edge is the line segment between the last
+   * point and the first point. nullptr will be returned if the iterator is
+   * at the end of the document or layout analysis was not used.
+   */
+  Pta* BlockPolygon() const;
+
+  /**
+   * Returns a binary image of the current object at the given level.
+   * The position and size match the return from BoundingBoxInternal, and so
+   * this could be upscaled with respect to the original input image.
+   * Use pixDestroy to delete the image after use.
+   */
+  Pix* GetBinaryImage(PageIteratorLevel level) const;
+
+  /**
+   * Returns an image of the current object at the given level in greyscale
+   * if available in the input. To guarantee a binary image use BinaryImage.
+   * NOTE that in order to give the best possible image, the bounds are
+   * expanded slightly over the binary connected component, by the supplied
+   * padding, so the top-left position of the returned image is returned
+   * in (left,top). These will most likely not match the coordinates
+   * returned by BoundingBox.
+   * If you do not supply an original image, you will get a binary one.
+   * Use pixDestroy to delete the image after use.
+   */
+  Pix* GetImage(PageIteratorLevel level, int padding, Pix* original_img,
+                int* left, int* top) const;
+
+  /**
+   * Returns the baseline of the current object at the given level.
+   * The baseline is the line that passes through (x1, y1) and (x2, y2).
+   * WARNING: with vertical text, baselines may be vertical!
+   * Returns false if there is no baseline at the current position.
+   */
+  bool Baseline(PageIteratorLevel level,
+                int* x1, int* y1, int* x2, int* y2) const;
+
+  /**
+   * Returns orientation for the block the iterator points to.
+   *   orientation, writing_direction, textline_order: see publictypes.h
+   *   deskew_angle: after rotating the block so the text orientation is
+   *                 upright, how many radians does one have to rotate the
+   *                 block anti-clockwise for it to be level?
+   *                   -Pi/4 <= deskew_angle <= Pi/4
+   */
+  void Orientation(tesseract::Orientation *orientation,
+                   tesseract::WritingDirection *writing_direction,
+                   tesseract::TextlineOrder *textline_order,
+                   float *deskew_angle) const;
+
+  /**
+   * Returns information about the current paragraph, if available.
+   *
+   *   justification -
+   *     LEFT if ragged right, or fully justified and script is left-to-right.
+   *     RIGHT if ragged left, or fully justified and script is right-to-left.
+   *     unknown if it looks like source code or we have very few lines.
+   *   is_list_item -
+   *     true if we believe this is a member of an ordered or unordered list.
+   *   is_crown -
+   *     true if the first line of the paragraph is aligned with the other
+   *     lines of the paragraph even though subsequent paragraphs have first
+   *     line indents.  This typically indicates that this is the continuation
+   *     of a previous paragraph or that it is the very first paragraph in
+   *     the chapter.
+   *   first_line_indent -
+   *     For LEFT aligned paragraphs, the first text line of paragraphs of
+   *     this kind are indented this many pixels from the left edge of the
+   *     rest of the paragraph.
+   *     for RIGHT aligned paragraphs, the first text line of paragraphs of
+   *     this kind are indented this many pixels from the right edge of the
+   *     rest of the paragraph.
+   *     NOTE 1: This value may be negative.
+   *     NOTE 2: if *is_crown == true, the first line of this paragraph is
+   *             actually flush, and first_line_indent is set to the "common"
+   *             first_line_indent for subsequent paragraphs in this block
+   *             of text.
+   */
+  void ParagraphInfo(tesseract::ParagraphJustification *justification,
+                     bool *is_list_item,
+                     bool *is_crown,
+                     int *first_line_indent) const;
+
+  // If the current WERD_RES (it_->word()) is not nullptr, sets the BlamerBundle
+  // of the current word to the given pointer (takes ownership of the pointer)
+  // and returns true.
+  // Can only be used when iterating on the word level.
+  bool SetWordBlamerBundle(BlamerBundle *blamer_bundle);
+
+ protected:
+  /**
+   * Sets up the internal data for iterating the blobs of a new word, then
+   * moves the iterator to the given offset.
+   */
+  TESS_LOCAL void BeginWord(int offset);
+
+  /** Pointer to the page_res owned by the API. */
+  PAGE_RES* page_res_;
+  /** Pointer to the Tesseract object owned by the API. */
+  Tesseract* tesseract_;
+  /**
+   * The iterator to the page_res_. Owned by this ResultIterator.
+   * A pointer just to avoid dragging in Tesseract includes.
+   */
+  PAGE_RES_IT* it_;
+  /**
+   * The current input WERD being iterated. If there is an output from OCR,
+   * then word_ is nullptr. Owned by the API
+   */
+  WERD* word_;
+  /** The length of the current word_. */
+  int word_length_;
+  /** The current blob index within the word. */
+  int blob_index_;
+  /**
+   * Iterator to the blobs within the word. If nullptr, then we are iterating
+   * OCR results in the box_word.
+   * Owned by this ResultIterator.
+   */
+  C_BLOB_IT* cblob_it_;
+  /** Control over what to include in bounding boxes. */
+  bool include_upper_dots_;
+  bool include_lower_dots_;
+  /** Parameters saved from the Thresholder. Needed to rebuild coordinates.*/
+  int scale_;
+  int scaled_yres_;
+  int rect_left_;
+  int rect_top_;
+  int rect_width_;
+  int rect_height_;
+};
+
+}  // namespace tesseract.
+
+#endif  // TESSERACT_CCMAIN_PAGEITERATOR_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/platform.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/platform.h
new file mode 100644
index 00000000..99424bc8
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/platform.h
@@ -0,0 +1,59 @@
+///////////////////////////////////////////////////////////////////////
+// File:        platform.h
+// Description: Place holder
+//
+// (C) Copyright 2006, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+
+#ifndef TESSERACT_CCUTIL_PLATFORM_H_
+#define TESSERACT_CCUTIL_PLATFORM_H_
+
+#define DLLSYM
+#ifndef _WIN32
+#  ifdef __cplusplus
+#    include <climits>
+#  else /* C compiler*/
+#    include <limits.h>
+#  endif /* __cplusplus */
+#  ifndef PATH_MAX
+#    define MAX_PATH 4096
+#  else
+#    define MAX_PATH PATH_MAX
+#  endif
+#endif
+
+#if defined(_WIN32) || defined(__CYGWIN__)
+#  if defined(TESS_EXPORTS)
+#    define TESS_API __declspec(dllexport)
+#  elif defined(TESS_IMPORTS)
+#    define TESS_API __declspec(dllimport)
+#  else
+#    define TESS_API
+#  endif
+#  define TESS_LOCAL
+#else
+#  if __GNUC__ >= 4
+#    if defined(TESS_EXPORTS) || defined(TESS_IMPORTS)
+#      define TESS_API __attribute__((visibility("default")))
+#      define TESS_LOCAL __attribute__((visibility("hidden")))
+#    else
+#      define TESS_API
+#      define TESS_LOCAL
+#    endif
+#  else
+#    define TESS_API
+#    define TESS_LOCAL
+#  endif
+#endif
+
+#endif  // TESSERACT_CCUTIL_PLATFORM_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/publictypes.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/publictypes.h
new file mode 100644
index 00000000..6013f4e6
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/publictypes.h
@@ -0,0 +1,286 @@
+///////////////////////////////////////////////////////////////////////
+// File:        publictypes.h
+// Description: Types used in both the API and internally
+// Author:      Ray Smith
+// Created:     Wed Mar 03 09:22:53 PST 2010
+//
+// (C) Copyright 2010, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+
+#ifndef TESSERACT_CCSTRUCT_PUBLICTYPES_H_
+#define TESSERACT_CCSTRUCT_PUBLICTYPES_H_
+
+// This file contains types that are used both by the API and internally
+// to Tesseract. In order to decouple the API from Tesseract and prevent cyclic
+// dependencies, THIS FILE SHOULD NOT DEPEND ON ANY OTHER PART OF TESSERACT.
+// Restated: It is OK for low-level Tesseract files to include publictypes.h,
+// but not for the low-level tesseract code to include top-level API code.
+// This file should not use other Tesseract types, as that would drag
+// their includes into the API-level.
+// API-level code should include apitypes.h in preference to this file.
+
+/** Number of printers' points in an inch. The unit of the pointsize return. */
+constexpr int kPointsPerInch = 72;
+/**
+ * Minimum believable resolution. Used as a default if there is no other
+ * information, as it is safer to under-estimate than over-estimate.
+ */
+constexpr int kMinCredibleResolution = 70;
+/** Maximum believable resolution.  */
+constexpr int kMaxCredibleResolution = 2400;
+/**
+ * Ratio between median blob size and likely resolution. Used to estimate
+ * resolution when none is provided. This is basically 1/usual text size in
+ * inches.  */
+constexpr int kResolutionEstimationFactor = 10;
+
+/**
+ * Possible types for a POLY_BLOCK or ColPartition.
+ * Must be kept in sync with kPBColors in polyblk.cpp and PTIs*Type functions
+ * below, as well as kPolyBlockNames in publictypes.cpp.
+ * Used extensively by ColPartition, and POLY_BLOCK.
+*/
+enum PolyBlockType {
+  PT_UNKNOWN,        // Type is not yet known. Keep as the first element.
+  PT_FLOWING_TEXT,   // Text that lives inside a column.
+  PT_HEADING_TEXT,   // Text that spans more than one column.
+  PT_PULLOUT_TEXT,   // Text that is in a cross-column pull-out region.
+  PT_EQUATION,       // Partition belonging to an equation region.
+  PT_INLINE_EQUATION,  // Partition has inline equation.
+  PT_TABLE,          // Partition belonging to a table region.
+  PT_VERTICAL_TEXT,  // Text-line runs vertically.
+  PT_CAPTION_TEXT,   // Text that belongs to an image.
+  PT_FLOWING_IMAGE,  // Image that lives inside a column.
+  PT_HEADING_IMAGE,  // Image that spans more than one column.
+  PT_PULLOUT_IMAGE,  // Image that is in a cross-column pull-out region.
+  PT_HORZ_LINE,      // Horizontal Line.
+  PT_VERT_LINE,      // Vertical Line.
+  PT_NOISE,          // Lies outside of any column.
+  PT_COUNT
+};
+
+/** Returns true if PolyBlockType is of horizontal line type */
+inline bool PTIsLineType(PolyBlockType type) {
+  return type == PT_HORZ_LINE || type == PT_VERT_LINE;
+}
+/** Returns true if PolyBlockType is of image type */
+inline bool PTIsImageType(PolyBlockType type) {
+  return type == PT_FLOWING_IMAGE || type == PT_HEADING_IMAGE ||
+         type == PT_PULLOUT_IMAGE;
+}
+/** Returns true if PolyBlockType is of text type */
+inline bool PTIsTextType(PolyBlockType type) {
+  return type == PT_FLOWING_TEXT || type == PT_HEADING_TEXT ||
+         type == PT_PULLOUT_TEXT || type == PT_TABLE ||
+         type == PT_VERTICAL_TEXT || type == PT_CAPTION_TEXT ||
+         type == PT_INLINE_EQUATION;
+}
+// Returns true if PolyBlockType is of pullout(inter-column) type
+inline bool PTIsPulloutType(PolyBlockType type) {
+  return type == PT_PULLOUT_IMAGE || type == PT_PULLOUT_TEXT;
+}
+
+/** String name for each block type. Keep in sync with PolyBlockType. */
+extern const char* kPolyBlockNames[];
+
+namespace tesseract {
+/**
+ *  +------------------+  Orientation Example:
+ *  | 1 Aaaa Aaaa Aaaa |  ====================
+ *  | Aaa aa aaa aa    |  To left is a diagram of some (1) English and
+ *  | aaaaaa A aa aaa. |  (2) Chinese text and a (3) photo credit.
+ *  |                2 |
+ *  |   #######  c c C |  Upright Latin characters are represented as A and a.
+ *  |   #######  c c c |  '<' represents a latin character rotated
+ *  | < #######  c c c |      anti-clockwise 90 degrees.
+ *  | < #######  c   c |
+ *  | < #######  .   c |  Upright Chinese characters are represented C and c.
+ *  | 3 #######      c |
+ *  +------------------+  NOTA BENE: enum values here should match goodoc.proto
+
+ * If you orient your head so that "up" aligns with Orientation,
+ * then the characters will appear "right side up" and readable.
+ *
+ * In the example above, both the English and Chinese paragraphs are oriented
+ * so their "up" is the top of the page (page up).  The photo credit is read
+ * with one's head turned leftward ("up" is to page left).
+ *
+ * The values of this enum match the convention of Tesseract's osdetect.h
+*/
+enum Orientation {
+  ORIENTATION_PAGE_UP = 0,
+  ORIENTATION_PAGE_RIGHT = 1,
+  ORIENTATION_PAGE_DOWN = 2,
+  ORIENTATION_PAGE_LEFT = 3,
+};
+
+/**
+ * The grapheme clusters within a line of text are laid out logically
+ * in this direction, judged when looking at the text line rotated so that
+ * its Orientation is "page up".
+ *
+ * For English text, the writing direction is left-to-right.  For the
+ * Chinese text in the above example, the writing direction is top-to-bottom.
+*/
+enum WritingDirection {
+  WRITING_DIRECTION_LEFT_TO_RIGHT = 0,
+  WRITING_DIRECTION_RIGHT_TO_LEFT = 1,
+  WRITING_DIRECTION_TOP_TO_BOTTOM = 2,
+};
+
+/**
+ * The text lines are read in the given sequence.
+ *
+ * In English, the order is top-to-bottom.
+ * In Chinese, vertical text lines are read right-to-left.  Mongolian is
+ * written in vertical columns top to bottom like Chinese, but the lines
+ * order left-to right.
+ *
+ * Note that only some combinations make sense.  For example,
+ * WRITING_DIRECTION_LEFT_TO_RIGHT implies TEXTLINE_ORDER_TOP_TO_BOTTOM
+*/
+enum TextlineOrder {
+  TEXTLINE_ORDER_LEFT_TO_RIGHT = 0,
+  TEXTLINE_ORDER_RIGHT_TO_LEFT = 1,
+  TEXTLINE_ORDER_TOP_TO_BOTTOM = 2,
+};
+
+/**
+ * Possible modes for page layout analysis. These *must* be kept in order
+ * of decreasing amount of layout analysis to be done, except for OSD_ONLY,
+ * so that the inequality test macros below work.
+*/
+enum PageSegMode {
+  PSM_OSD_ONLY = 0,       ///< Orientation and script detection only.
+  PSM_AUTO_OSD = 1,       ///< Automatic page segmentation with orientation and
+                      ///< script detection. (OSD)
+  PSM_AUTO_ONLY = 2,      ///< Automatic page segmentation, but no OSD, or OCR.
+  PSM_AUTO = 3,           ///< Fully automatic page segmentation, but no OSD.
+  PSM_SINGLE_COLUMN = 4,  ///< Assume a single column of text of variable sizes.
+  PSM_SINGLE_BLOCK_VERT_TEXT = 5,  ///< Assume a single uniform block of vertically
+                               ///< aligned text.
+  PSM_SINGLE_BLOCK = 6,   ///< Assume a single uniform block of text. (Default.)
+  PSM_SINGLE_LINE = 7,    ///< Treat the image as a single text line.
+  PSM_SINGLE_WORD = 8,    ///< Treat the image as a single word.
+  PSM_CIRCLE_WORD = 9,    ///< Treat the image as a single word in a circle.
+  PSM_SINGLE_CHAR = 10,    ///< Treat the image as a single character.
+  PSM_SPARSE_TEXT = 11,    ///< Find as much text as possible in no particular order.
+  PSM_SPARSE_TEXT_OSD = 12,  ///< Sparse text with orientation and script det.
+  PSM_RAW_LINE = 13,       ///< Treat the image as a single text line, bypassing
+                      ///< hacks that are Tesseract-specific.
+
+  PSM_COUNT           ///< Number of enum entries.
+};
+
+/**
+ * Inline functions that act on a PageSegMode to determine whether components of
+ * layout analysis are enabled.
+ * *Depend critically on the order of elements of PageSegMode.*
+ * NOTE that arg is an int for compatibility with INT_PARAM.
+*/
+inline bool PSM_OSD_ENABLED(int pageseg_mode) {
+  return pageseg_mode <= PSM_AUTO_OSD || pageseg_mode == PSM_SPARSE_TEXT_OSD;
+}
+inline bool PSM_ORIENTATION_ENABLED(int pageseg_mode) {
+  return pageseg_mode <= PSM_AUTO || pageseg_mode == PSM_SPARSE_TEXT_OSD;
+}
+inline bool PSM_COL_FIND_ENABLED(int pageseg_mode) {
+  return pageseg_mode >= PSM_AUTO_OSD && pageseg_mode <= PSM_AUTO;
+}
+inline bool PSM_SPARSE(int pageseg_mode) {
+  return pageseg_mode == PSM_SPARSE_TEXT || pageseg_mode == PSM_SPARSE_TEXT_OSD;
+}
+inline bool PSM_BLOCK_FIND_ENABLED(int pageseg_mode) {
+  return pageseg_mode >= PSM_AUTO_OSD && pageseg_mode <= PSM_SINGLE_COLUMN;
+}
+inline bool PSM_LINE_FIND_ENABLED(int pageseg_mode) {
+  return pageseg_mode >= PSM_AUTO_OSD && pageseg_mode <= PSM_SINGLE_BLOCK;
+}
+inline bool PSM_WORD_FIND_ENABLED(int pageseg_mode) {
+  return (pageseg_mode >= PSM_AUTO_OSD && pageseg_mode <= PSM_SINGLE_LINE) ||
+      pageseg_mode == PSM_SPARSE_TEXT || pageseg_mode == PSM_SPARSE_TEXT_OSD;
+}
+
+/**
+ * enum of the elements of the page hierarchy, used in ResultIterator
+ * to provide functions that operate on each level without having to
+ * have 5x as many functions.
+*/
+enum PageIteratorLevel {
+  RIL_BLOCK,     // Block of text/image/separator line.
+  RIL_PARA,      // Paragraph within a block.
+  RIL_TEXTLINE,  // Line within a paragraph.
+  RIL_WORD,      // Word within a textline.
+  RIL_SYMBOL     // Symbol/character within a word.
+};
+
+/**
+ * JUSTIFICATION_UNKNOWN
+ *   The alignment is not clearly one of the other options.  This could happen
+ *   for example if there are only one or two lines of text or the text looks
+ *   like source code or poetry.
+ *
+ * NOTA BENE: Fully justified paragraphs (text aligned to both left and right
+ *    margins) are marked by Tesseract with JUSTIFICATION_LEFT if their text
+ *    is written with a left-to-right script and with JUSTIFICATION_RIGHT if
+ *    their text is written in a right-to-left script.
+ *
+ * Interpretation for text read in vertical lines:
+ *   "Left" is wherever the starting reading position is.
+ *
+ * JUSTIFICATION_LEFT
+ *   Each line, except possibly the first, is flush to the same left tab stop.
+ *
+ * JUSTIFICATION_CENTER
+ *   The text lines of the paragraph are centered about a line going
+ *   down through their middle of the text lines.
+ *
+ * JUSTIFICATION_RIGHT
+ *   Each line, except possibly the first, is flush to the same right tab stop.
+ */
+enum ParagraphJustification {
+  JUSTIFICATION_UNKNOWN,
+  JUSTIFICATION_LEFT,
+  JUSTIFICATION_CENTER,
+  JUSTIFICATION_RIGHT,
+};
+
+/**
+ * When Tesseract/Cube is initialized we can choose to instantiate/load/run
+ * only the Tesseract part, only the Cube part or both along with the combiner.
+ * The preference of which engine to use is stored in tessedit_ocr_engine_mode.
+ *
+ * ATTENTION: When modifying this enum, please make sure to make the
+ * appropriate changes to all the enums mirroring it (e.g. OCREngine in
+ * cityblock/workflow/detection/detection_storage.proto). Such enums will
+ * mention the connection to OcrEngineMode in the comments.
+*/
+enum OcrEngineMode {
+  OEM_TESSERACT_ONLY,           // Run Tesseract only - fastest; deprecated
+  OEM_LSTM_ONLY,                // Run just the LSTM line recognizer.
+  OEM_TESSERACT_LSTM_COMBINED,  // Run the LSTM recognizer, but allow fallback
+                                // to Tesseract when things get difficult.
+                                // deprecated
+  OEM_DEFAULT,                  // Specify this mode when calling init_*(),
+                                // to indicate that any of the above modes
+                                // should be automatically inferred from the
+                                // variables in the language-specific config,
+                                // command-line configs, or if not specified
+                                // in any of the above should be set to the
+                                // default OEM_TESSERACT_ONLY.
+  OEM_COUNT                     // Number of OEMs
+};
+
+}  // namespace tesseract.
+
+#endif  // TESSERACT_CCSTRUCT_PUBLICTYPES_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/renderer.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/renderer.h
new file mode 100644
index 00000000..177fd5ff
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/renderer.h
@@ -0,0 +1,310 @@
+///////////////////////////////////////////////////////////////////////
+// File:        renderer.h
+// Description: Rendering interface to inject into TessBaseAPI
+//
+// (C) Copyright 2011, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+
+#ifndef TESSERACT_API_RENDERER_H_
+#define TESSERACT_API_RENDERER_H_
+
+// To avoid collision with other typenames include the ABSOLUTE MINIMUM
+// complexity of includes here. Use forward declarations wherever possible
+// and hide includes of complex types in baseapi.cpp.
+#include <string>  // for std::string
+#include "genericvector.h"
+#include "platform.h"
+#include "strngs.h"             // for STRING
+
+struct Pix;
+
+namespace tesseract {
+
+class TessBaseAPI;
+
+/**
+ * Interface for rendering tesseract results into a document, such as text,
+ * HOCR or pdf. This class is abstract. Specific classes handle individual
+ * formats. This interface is then used to inject the renderer class into
+ * tesseract when processing images.
+ *
+ * For simplicity implementing this with tesesract version 3.01,
+ * the renderer contains document state that is cleared from document
+ * to document just as the TessBaseAPI is. This way the base API can just
+ * delegate its rendering functionality to injected renderers, and the
+ * renderers can manage the associated state needed for the specific formats
+ * in addition to the heuristics for producing it.
+ */
+class TESS_API TessResultRenderer {
+ public:
+  virtual ~TessResultRenderer();
+
+  // Takes ownership of pointer so must be new'd instance.
+  // Renderers aren't ordered, but appends the sequences of next parameter
+  // and existing next(). The renderers should be unique across both lists.
+  void insert(TessResultRenderer* next);
+
+  // Returns the next renderer or nullptr.
+  TessResultRenderer* next() {
+    return next_;
+  }
+
+  /**
+   * Starts a new document with the given title.
+   * This clears the contents of the output data.
+   * Title should use UTF-8 encoding.
+   */
+  bool BeginDocument(const char* title);
+
+  /**
+   * Adds the recognized text from the source image to the current document.
+   * Invalid if BeginDocument not yet called.
+   *
+   * Note that this API is a bit weird but is designed to fit into the
+   * current TessBaseAPI implementation where the api has lots of state
+   * information that we might want to add in.
+   */
+  bool AddImage(TessBaseAPI* api);
+
+  /**
+   * Finishes the document and finalizes the output data
+   * Invalid if BeginDocument not yet called.
+   */
+  bool EndDocument();
+
+  const char* file_extension() const {
+    return file_extension_;
+  }
+  const char* title() const {
+    return title_.c_str();
+  }
+
+  // Is everything fine? Otherwise something went wrong.
+  bool happy() {
+    return happy_;
+  }
+
+  /**
+   * Returns the index of the last image given to AddImage
+   * (i.e. images are incremented whether the image succeeded or not)
+   *
+   * This is always defined. It means either the number of the
+   * current image, the last image ended, or in the completed document
+   * depending on when in the document lifecycle you are looking at it.
+   * Will return -1 if a document was never started.
+   */
+  int imagenum() const {
+    return imagenum_;
+  }
+
+ protected:
+  /**
+   * Called by concrete classes.
+   *
+   * outputbase is the name of the output file excluding
+   * extension. For example, "/path/to/chocolate-chip-cookie-recipe"
+   *
+   * extension indicates the file extension to be used for output
+   * files. For example "pdf" will produce a .pdf file, and "hocr"
+   * will produce .hocr files.
+   */
+  TessResultRenderer(const char* outputbase, const char* extension);
+
+  // Hook for specialized handling in BeginDocument()
+  virtual bool BeginDocumentHandler();
+
+  // This must be overridden to render the OCR'd results
+  virtual bool AddImageHandler(TessBaseAPI* api) = 0;
+
+  // Hook for specialized handling in EndDocument()
+  virtual bool EndDocumentHandler();
+
+  // Renderers can call this to append '\0' terminated strings into
+  // the output string returned by GetOutput.
+  // This method will grow the output buffer if needed.
+  void AppendString(const char* s);
+
+  // Renderers can call this to append binary byte sequences into
+  // the output string returned by GetOutput. Note that s is not necessarily
+  // '\0' terminated (and can contain '\0' within it).
+  // This method will grow the output buffer if needed.
+  void AppendData(const char* s, int len);
+
+ private:
+  const char* file_extension_;  // standard extension for generated output
+  STRING title_;                // title of document being renderered
+  int imagenum_;                // index of last image added
+
+  FILE* fout_;                // output file pointer
+  TessResultRenderer* next_;  // Can link multiple renderers together
+  bool happy_;                // I get grumpy when the disk fills up, etc.
+};
+
+/**
+ * Renders tesseract output into a plain UTF-8 text string
+ */
+class TESS_API TessTextRenderer : public TessResultRenderer {
+ public:
+  explicit TessTextRenderer(const char* outputbase);
+
+ protected:
+  bool AddImageHandler(TessBaseAPI* api) override;
+};
+
+/**
+ * Renders tesseract output into an hocr text string
+ */
+class TESS_API TessHOcrRenderer : public TessResultRenderer {
+ public:
+  explicit TessHOcrRenderer(const char* outputbase, bool font_info);
+  explicit TessHOcrRenderer(const char* outputbase);
+
+ protected:
+  bool BeginDocumentHandler() override;
+  bool AddImageHandler(TessBaseAPI* api) override;
+  bool EndDocumentHandler() override;
+
+ private:
+  bool font_info_;  // whether to print font information
+};
+
+/**
+ * Renders tesseract output into an alto text string
+ */
+class TESS_API TessAltoRenderer : public TessResultRenderer {
+ public:
+  explicit TessAltoRenderer(const char* outputbase);
+
+ protected:
+  bool BeginDocumentHandler() override;
+  bool AddImageHandler(TessBaseAPI* api) override;
+  bool EndDocumentHandler() override;
+};
+
+/**
+ * Renders Tesseract output into a TSV string
+ */
+class TESS_API TessTsvRenderer : public TessResultRenderer {
+ public:
+  explicit TessTsvRenderer(const char* outputbase, bool font_info);
+  explicit TessTsvRenderer(const char* outputbase);
+
+ protected:
+  bool BeginDocumentHandler() override;
+  bool AddImageHandler(TessBaseAPI* api) override;
+  bool EndDocumentHandler() override;
+
+ private:
+  bool font_info_;  // whether to print font information
+};
+
+/**
+ * Renders tesseract output into searchable PDF
+ */
+class TESS_API TessPDFRenderer : public TessResultRenderer {
+ public:
+  // datadir is the location of the TESSDATA. We need it because
+  // we load a custom PDF font from this location.
+  TessPDFRenderer(const char* outputbase, const char* datadir,
+                  bool textonly = false);
+
+ protected:
+  bool BeginDocumentHandler() override;
+  bool AddImageHandler(TessBaseAPI* api) override;
+  bool EndDocumentHandler() override;
+
+ private:
+  // We don't want to have every image in memory at once,
+  // so we store some metadata as we go along producing
+  // PDFs one page at a time. At the end, that metadata is
+  // used to make everything that isn't easily handled in a
+  // streaming fashion.
+  long int obj_;                     // counter for PDF objects
+  GenericVector<long int> offsets_;  // offset of every PDF object in bytes
+  GenericVector<long int> pages_;    // object number for every /Page object
+  std::string datadir_;              // where to find the custom font
+  bool textonly_;                    // skip images if set
+  // Bookkeeping only. DIY = Do It Yourself.
+  void AppendPDFObjectDIY(size_t objectsize);
+  // Bookkeeping + emit data.
+  void AppendPDFObject(const char* data);
+  // Create the /Contents object for an entire page.
+  char* GetPDFTextObjects(TessBaseAPI* api, double width, double height);
+  // Turn an image into a PDF object. Only transcode if we have to.
+  static bool imageToPDFObj(Pix* pix, const char* filename, long int objnum,
+                            char** pdf_object, long int* pdf_object_size,
+                            int jpg_quality);
+};
+
+/**
+ * Renders tesseract output into a plain UTF-8 text string
+ */
+class TESS_API TessUnlvRenderer : public TessResultRenderer {
+ public:
+  explicit TessUnlvRenderer(const char* outputbase);
+
+ protected:
+  bool AddImageHandler(TessBaseAPI* api) override;
+};
+
+/**
+ * Renders tesseract output into a plain UTF-8 text string for LSTMBox
+ */
+class TESS_API TessLSTMBoxRenderer : public TessResultRenderer {
+ public:
+  explicit TessLSTMBoxRenderer(const char* outputbase);
+
+ protected:
+  bool AddImageHandler(TessBaseAPI* api) override;
+};
+
+/**
+ * Renders tesseract output into a plain UTF-8 text string
+ */
+class TESS_API TessBoxTextRenderer : public TessResultRenderer {
+ public:
+  explicit TessBoxTextRenderer(const char* outputbase);
+
+ protected:
+  bool AddImageHandler(TessBaseAPI* api) override;
+};
+
+/**
+ * Renders tesseract output into a plain UTF-8 text string in WordStr format
+ */
+class TESS_API TessWordStrBoxRenderer : public TessResultRenderer {
+ public:
+  explicit TessWordStrBoxRenderer(const char* outputbase);
+
+ protected:
+  bool AddImageHandler(TessBaseAPI* api) override;
+};
+
+#ifndef DISABLED_LEGACY_ENGINE
+
+/**
+ * Renders tesseract output into an osd text string
+ */
+class TESS_API TessOsdRenderer : public TessResultRenderer {
+ public:
+  explicit TessOsdRenderer(const char* outputbase);
+
+ protected:
+  bool AddImageHandler(TessBaseAPI* api) override;
+};
+
+#endif  // ndef DISABLED_LEGACY_ENGINE
+
+}  // namespace tesseract.
+
+#endif  // TESSERACT_API_RENDERER_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/resultiterator.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/resultiterator.h
new file mode 100644
index 00000000..4333012b
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/resultiterator.h
@@ -0,0 +1,257 @@
+///////////////////////////////////////////////////////////////////////
+// File:        resultiterator.h
+// Description: Iterator for tesseract results that is capable of
+//              iterating in proper reading order over Bi Directional
+//              (e.g. mixed Hebrew and English) text.
+// Author:      David Eger
+// Created:     Fri May 27 13:58:06 PST 2011
+//
+// (C) Copyright 2011, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+
+#ifndef TESSERACT_CCMAIN_RESULT_ITERATOR_H_
+#define TESSERACT_CCMAIN_RESULT_ITERATOR_H_
+
+#include <set>                  // for std::pair
+#include <vector>               // for std::vector
+#include "ltrresultiterator.h"  // for LTRResultIterator
+#include "platform.h"           // for TESS_API, TESS_LOCAL
+#include "publictypes.h"        // for PageIteratorLevel
+#include "unichar.h"            // for StrongScriptDirection
+
+template <typename T> class GenericVector;
+template <typename T> class GenericVectorEqEq;
+
+class STRING;
+
+namespace tesseract {
+
+class Tesseract;
+
+class TESS_API ResultIterator : public LTRResultIterator {
+ public:
+  static ResultIterator *StartOfParagraph(const LTRResultIterator &resit);
+
+  /**
+   * ResultIterator is copy constructible!
+   * The default copy constructor works just fine for us.
+   */
+  ~ResultIterator() override = default;
+
+  // ============= Moving around within the page ============.
+  /**
+   * Moves the iterator to point to the start of the page to begin
+   * an iteration.
+   */
+  void Begin() override;
+
+  /**
+   * Moves to the start of the next object at the given level in the
+   * page hierarchy in the appropriate reading order and returns false if
+   * the end of the page was reached.
+   * NOTE that RIL_SYMBOL will skip non-text blocks, but all other
+   * PageIteratorLevel level values will visit each non-text block once.
+   * Think of non text blocks as containing a single para, with a single line,
+   * with a single imaginary word.
+   * Calls to Next with different levels may be freely intermixed.
+   * This function iterates words in right-to-left scripts correctly, if
+   * the appropriate language has been loaded into Tesseract.
+   */
+  bool Next(PageIteratorLevel level) override;
+
+  /**
+   * IsAtBeginningOf() returns whether we're at the logical beginning of the
+   * given level.  (as opposed to ResultIterator's left-to-right top-to-bottom
+   * order).  Otherwise, this acts the same as PageIterator::IsAtBeginningOf().
+   * For a full description, see pageiterator.h
+   */
+  bool IsAtBeginningOf(PageIteratorLevel level) const override;
+
+  /**
+   * Implement PageIterator's IsAtFinalElement correctly in a BiDi context.
+   * For instance, IsAtFinalElement(RIL_PARA, RIL_WORD) returns whether we
+   * point at the last word in a paragraph.  See PageIterator for full comment.
+  */
+  bool IsAtFinalElement(PageIteratorLevel level,
+                                PageIteratorLevel element) const override;
+
+  // ============= Functions that refer to words only ============.
+  // Returns the number of blanks before the current word.
+  int BlanksBeforeWord() const;
+
+  // ============= Accessing data ==============.
+
+  /**
+   * Returns the null terminated UTF-8 encoded text string for the current
+   * object at the given level. Use delete [] to free after use.
+  */
+  virtual char* GetUTF8Text(PageIteratorLevel level) const;
+
+  /**
+   * Returns the LSTM choices for every LSTM timestep for the current word.
+  */
+  virtual std::vector<std::vector<std::pair<const char*, float>>>*
+    GetBestLSTMSymbolChoices() const;
+
+  /**
+   * Return whether the current paragraph's dominant reading direction
+   * is left-to-right (as opposed to right-to-left).
+  */
+  bool ParagraphIsLtr() const;
+
+  // ============= Exposed only for testing =============.
+
+  /**
+   * Yields the reading order as a sequence of indices and (optional)
+   * meta-marks for a set of words (given left-to-right).
+   * The meta marks are passed as negative values:
+   *   kMinorRunStart  Start of minor direction text.
+   *   kMinorRunEnd    End of minor direction text.
+   *   kComplexWord    The next indexed word contains both left-to-right and
+   *                    right-to-left characters and was treated as neutral.
+   *
+   * For example, suppose we have five words in a text line,
+   * indexed [0,1,2,3,4] from the leftmost side of the text line.
+   * The following are all believable reading_orders:
+   *
+   * Left-to-Right (in ltr paragraph):
+   *     { 0, 1, 2, 3, 4 }
+   * Left-to-Right (in rtl paragraph):
+   *     { kMinorRunStart, 0, 1, 2, 3, 4, kMinorRunEnd }
+   * Right-to-Left (in rtl paragraph):
+   *     { 4, 3, 2, 1, 0 }
+   * Left-to-Right except for an RTL phrase in words 2, 3 in an ltr paragraph:
+   *     { 0, 1, kMinorRunStart, 3, 2, kMinorRunEnd, 4 }
+   */
+  static void CalculateTextlineOrder(
+      bool paragraph_is_ltr,
+      const GenericVector<StrongScriptDirection> &word_dirs,
+      GenericVectorEqEq<int> *reading_order);
+
+  static const int kMinorRunStart;
+  static const int kMinorRunEnd;
+  static const int kComplexWord;
+
+ protected:
+  /**
+   * We presume the data associated with the given iterator will outlive us.
+   * NB: This is private because it does something that is non-obvious:
+   *   it resets to the beginning of the paragraph instead of staying wherever
+   *   resit might have pointed.
+   */
+  TESS_LOCAL explicit ResultIterator(const LTRResultIterator &resit);
+
+ private:
+  /**
+   * Calculates the current paragraph's dominant writing direction.
+   * Typically, members should use current_paragraph_ltr_ instead.
+   */
+  bool CurrentParagraphIsLtr() const;
+
+  /**
+   * Returns word indices as measured from resit->RestartRow() = index 0
+   * for the reading order of words within a textline given an iterator
+   * into the middle of the text line.
+   * In addition to non-negative word indices, the following negative values
+   * may be inserted:
+   *   kMinorRunStart  Start of minor direction text.
+   *   kMinorRunEnd    End of minor direction text.
+   *   kComplexWord    The previous word contains both left-to-right and
+   *                   right-to-left characters and was treated as neutral.
+   */
+  void CalculateTextlineOrder(bool paragraph_is_ltr,
+                              const LTRResultIterator &resit,
+                              GenericVectorEqEq<int> *indices) const;
+  /** Same as above, but the caller's ssd gets filled in if ssd != nullptr. */
+  void CalculateTextlineOrder(bool paragraph_is_ltr,
+                              const LTRResultIterator &resit,
+                              GenericVector<StrongScriptDirection> *ssd,
+                              GenericVectorEqEq<int> *indices) const;
+
+  /**
+   * What is the index of the current word in a strict left-to-right reading
+   * of the row?
+   */
+  int LTRWordIndex() const;
+
+  /**
+   * Given an iterator pointing at a word, returns the logical reading order
+   * of blob indices for the word.
+   */
+  void CalculateBlobOrder(GenericVector<int> *blob_indices) const;
+
+  /** Precondition: current_paragraph_is_ltr_ is set. */
+  void MoveToLogicalStartOfTextline();
+
+  /**
+   * Precondition: current_paragraph_is_ltr_ and in_minor_direction_
+   * are set.
+   */
+  void MoveToLogicalStartOfWord();
+
+  /** Are we pointing at the final (reading order) symbol of the word? */
+  bool IsAtFinalSymbolOfWord() const;
+
+  /** Are we pointing at the first (reading order) symbol of the word? */
+  bool IsAtFirstSymbolOfWord() const;
+
+  /**
+   * Append any extra marks that should be appended to this word when printed.
+   * Mostly, these are Unicode BiDi control characters.
+   */
+  void AppendSuffixMarks(STRING *text) const;
+
+  /** Appends the current word in reading order to the given buffer.*/
+  void AppendUTF8WordText(STRING *text) const;
+
+  /**
+   * Appends the text of the current text line, *assuming this iterator is
+   * positioned at the beginning of the text line*  This function
+   * updates the iterator to point to the first position past the text line.
+   * Each textline is terminated in a single newline character.
+   * If the textline ends a paragraph, it gets a second terminal newline.
+   */
+  void IterateAndAppendUTF8TextlineText(STRING *text);
+
+  /**
+   * Appends the text of the current paragraph in reading order
+   * to the given buffer.
+   * Each textline is terminated in a single newline character, and the
+   * paragraph gets an extra newline at the end.
+   */
+  void AppendUTF8ParagraphText(STRING *text) const;
+
+  /** Returns whether the bidi_debug flag is set to at least min_level. */
+  bool BidiDebug(int min_level) const;
+
+  bool current_paragraph_is_ltr_;
+
+  /**
+   * Is the currently pointed-at character at the beginning of
+   * a minor-direction run?
+   */
+  bool at_beginning_of_minor_run_;
+
+  /** Is the currently pointed-at character in a minor-direction sequence? */
+  bool in_minor_direction_;
+
+  /**
+   * Should detected inter-word spaces be preserved, or "compressed" to a single
+   * space character (default behavior).
+   */
+  bool preserve_interword_spaces_;
+};
+
+}  // namespace tesseract.
+
+#endif  // TESSERACT_CCMAIN_RESULT_ITERATOR_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/serialis.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/serialis.h
new file mode 100644
index 00000000..095b9227
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/serialis.h
@@ -0,0 +1,162 @@
+/**********************************************************************
+ * File:        serialis.h  (Formerly serialmac.h)
+ * Description: Inline routines and macros for serialisation functions
+ * Author:      Phil Cheatle
+ *
+ * (C) Copyright 1990, Hewlett-Packard Ltd.
+ ** Licensed under the Apache License, Version 2.0 (the "License");
+ ** you may not use this file except in compliance with the License.
+ ** You may obtain a copy of the License at
+ ** http://www.apache.org/licenses/LICENSE-2.0
+ ** Unless required by applicable law or agreed to in writing, software
+ ** distributed under the License is distributed on an "AS IS" BASIS,
+ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ** See the License for the specific language governing permissions and
+ ** limitations under the License.
+ *
+ **********************************************************************/
+
+#ifndef SERIALIS_H
+#define SERIALIS_H
+
+#include <cstdint>  // uint8_t
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+
+template <typename T>
+class GenericVector;
+class STRING;
+
+/***********************************************************************
+  QUOTE_IT   MACRO DEFINITION
+  ===========================
+Replace <parm> with "<parm>".  <parm> may be an arbitrary number of tokens
+***********************************************************************/
+
+#define QUOTE_IT(parm) #parm
+
+namespace tesseract {
+
+// Return number of elements of an array.
+template <typename T, size_t N>
+constexpr size_t countof(T const (&)[N]) noexcept {
+  return N;
+}
+
+// Function to read a GenericVector<char> from a whole file.
+// Returns false on failure.
+using FileReader = bool (*)(const STRING&, GenericVector<char>*);
+// Function to write a GenericVector<char> to a whole file.
+// Returns false on failure.
+using FileWriter = bool (*)(const GenericVector<char>&, const STRING&);
+
+// Deserialize data from file.
+bool DeSerialize(FILE* fp, char* data, size_t n = 1);
+bool DeSerialize(FILE* fp, float* data, size_t n = 1);
+bool DeSerialize(FILE* fp, int8_t* data, size_t n = 1);
+bool DeSerialize(FILE* fp, int16_t* data, size_t n = 1);
+bool DeSerialize(FILE* fp, int32_t* data, size_t n = 1);
+bool DeSerialize(FILE* fp, uint8_t* data, size_t n = 1);
+bool DeSerialize(FILE* fp, uint16_t* data, size_t n = 1);
+bool DeSerialize(FILE* fp, uint32_t* data, size_t n = 1);
+
+// Serialize data to file.
+bool Serialize(FILE* fp, const char* data, size_t n = 1);
+bool Serialize(FILE* fp, const float* data, size_t n = 1);
+bool Serialize(FILE* fp, const int8_t* data, size_t n = 1);
+bool Serialize(FILE* fp, const int16_t* data, size_t n = 1);
+bool Serialize(FILE* fp, const int32_t* data, size_t n = 1);
+bool Serialize(FILE* fp, const uint8_t* data, size_t n = 1);
+bool Serialize(FILE* fp, const uint16_t* data, size_t n = 1);
+bool Serialize(FILE* fp, const uint32_t* data, size_t n = 1);
+
+// Simple file class.
+// Allows for portable file input from memory and from foreign file systems.
+class TFile {
+ public:
+  TFile();
+  ~TFile();
+
+  // All the Open methods load the whole file into memory for reading.
+  // Opens a file with a supplied reader, or nullptr to use the default.
+  // Note that mixed read/write is not supported.
+  bool Open(const STRING& filename, FileReader reader);
+  // From an existing memory buffer.
+  bool Open(const char* data, int size);
+  // From an open file and an end offset.
+  bool Open(FILE* fp, int64_t end_offset);
+  // Sets the value of the swap flag, so that FReadEndian does the right thing.
+  void set_swap(bool value) {
+    swap_ = value;
+  }
+
+  // Deserialize data.
+  bool DeSerialize(char* data, size_t count = 1);
+  bool DeSerialize(double* data, size_t count = 1);
+  bool DeSerialize(float* data, size_t count = 1);
+  bool DeSerialize(int8_t* data, size_t count = 1);
+  bool DeSerialize(int16_t* data, size_t count = 1);
+  bool DeSerialize(int32_t* data, size_t count = 1);
+  bool DeSerialize(int64_t* data, size_t count = 1);
+  bool DeSerialize(uint8_t* data, size_t count = 1);
+  bool DeSerialize(uint16_t* data, size_t count = 1);
+  bool DeSerialize(uint32_t* data, size_t count = 1);
+  bool DeSerialize(uint64_t* data, size_t count = 1);
+
+  // Serialize data.
+  bool Serialize(const char* data, size_t count = 1);
+  bool Serialize(const double* data, size_t count = 1);
+  bool Serialize(const float* data, size_t count = 1);
+  bool Serialize(const int8_t* data, size_t count = 1);
+  bool Serialize(const int16_t* data, size_t count = 1);
+  bool Serialize(const int32_t* data, size_t count = 1);
+  bool Serialize(const int64_t* data, size_t count = 1);
+  bool Serialize(const uint8_t* data, size_t count = 1);
+  bool Serialize(const uint16_t* data, size_t count = 1);
+  bool Serialize(const uint32_t* data, size_t count = 1);
+  bool Serialize(const uint64_t* data, size_t count = 1);
+
+  // Skip data.
+  bool Skip(size_t count);
+
+  // Reads a line like fgets. Returns nullptr on EOF, otherwise buffer.
+  // Reads at most buffer_size bytes, including '\0' terminator, even if
+  // the line is longer. Does nothing if buffer_size <= 0.
+  char* FGets(char* buffer, int buffer_size);
+  // Replicates fread, followed by a swap of the bytes if needed, returning the
+  // number of items read. If swap_ is true then the count items will each have
+  // size bytes reversed.
+  int FReadEndian(void* buffer, size_t size, int count);
+  // Replicates fread, returning the number of items read.
+  int FRead(void* buffer, size_t size, int count);
+  // Resets the TFile as if it has been Opened, but nothing read.
+  // Only allowed while reading!
+  void Rewind();
+
+  // Open for writing. Either supply a non-nullptr data with OpenWrite before
+  // calling FWrite, (no close required), or supply a nullptr data to OpenWrite
+  // and call CloseWrite to write to a file after the FWrites.
+  void OpenWrite(GenericVector<char>* data);
+  bool CloseWrite(const STRING& filename, FileWriter writer);
+
+  // Replicates fwrite, returning the number of items written.
+  // To use fprintf, use snprintf and FWrite.
+  int FWrite(const void* buffer, size_t size, int count);
+
+ private:
+  // The number of bytes used so far.
+  int offset_;
+  // The buffered data from the file.
+  GenericVector<char>* data_;
+  // True if the data_ pointer is owned by *this.
+  bool data_is_owned_;
+  // True if the TFile is open for writing.
+  bool is_writing_;
+  // True if bytes need to be swapped in FReadEndian.
+  bool swap_;
+};
+
+}  // namespace tesseract.
+
+#endif
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/strngs.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/strngs.h
new file mode 100644
index 00000000..2f15064f
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/strngs.h
@@ -0,0 +1,188 @@
+/**********************************************************************
+ * File:        strngs.h  (Formerly strings.h)
+ * Description: STRING class definition.
+ * Author:      Ray Smith
+ *
+ * (C) Copyright 1991, Hewlett-Packard Ltd.
+ ** Licensed under the Apache License, Version 2.0 (the "License");
+ ** you may not use this file except in compliance with the License.
+ ** You may obtain a copy of the License at
+ ** http://www.apache.org/licenses/LICENSE-2.0
+ ** Unless required by applicable law or agreed to in writing, software
+ ** distributed under the License is distributed on an "AS IS" BASIS,
+ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ** See the License for the specific language governing permissions and
+ ** limitations under the License.
+ *
+ **********************************************************************/
+
+#ifndef STRNGS_H
+#define STRNGS_H
+
+#include <cassert>     // for assert
+#include <cstdint>     // for uint32_t
+#include <cstdio>      // for FILE
+#include <cstring>     // for strncpy
+#include "platform.h"  // for TESS_API
+
+namespace tesseract {
+class TFile;
+}  // namespace tesseract.
+
+// STRING_IS_PROTECTED means that  string[index] = X is invalid
+// because you have to go through strings interface to modify it.
+// This allows the string to ensure internal integrity and maintain
+// its own string length. Unfortunately this is not possible because
+// STRINGS are used as direct-manipulation data buffers for things
+// like length arrays and many places cast away the const on string()
+// to mutate the string. Turning this off means that internally we
+// cannot assume we know the strlen.
+#define STRING_IS_PROTECTED 0
+
+template <typename T>
+class GenericVector;
+
+class TESS_API STRING {
+ public:
+  STRING();
+  STRING(const STRING& string);
+  STRING(const char* string);
+  STRING(const char* data, int length);
+  ~STRING();
+
+  // Writes to the given file. Returns false in case of error.
+  bool Serialize(FILE* fp) const;
+  // Reads from the given file. Returns false in case of error.
+  // If swap is true, assumes a big/little-endian swap is needed.
+  bool DeSerialize(bool swap, FILE* fp);
+  // Writes to the given file. Returns false in case of error.
+  bool Serialize(tesseract::TFile* fp) const;
+  // Reads from the given file. Returns false in case of error.
+  // If swap is true, assumes a big/little-endian swap is needed.
+  bool DeSerialize(tesseract::TFile* fp);
+  // As DeSerialize, but only seeks past the data - hence a static method.
+  static bool SkipDeSerialize(tesseract::TFile* fp);
+
+  bool contains(char c) const;
+  int32_t length() const;
+  int32_t size() const {
+    return length();
+  }
+  // Workaround to avoid g++ -Wsign-compare warnings.
+  uint32_t unsigned_size() const {
+    const int32_t len = length();
+    assert(0 <= len);
+    return static_cast<uint32_t>(len);
+  }
+  const char* string() const;
+  const char* c_str() const;
+
+  inline char* strdup() const {
+    int32_t len = length() + 1;
+    return strncpy(new char[len], GetCStr(), len);
+  }
+
+#if STRING_IS_PROTECTED
+  const char& operator[](int32_t index) const;
+  // len is number of chars in s to insert starting at index in this string
+  void insert_range(int32_t index, const char* s, int len);
+  void erase_range(int32_t index, int len);
+#else
+  char& operator[](int32_t index) const;
+#endif
+  void split(char c, GenericVector<STRING>* splited);
+  void truncate_at(int32_t index);
+
+  bool operator==(const STRING& string) const;
+  bool operator!=(const STRING& string) const;
+  bool operator!=(const char* string) const;
+
+  STRING& operator=(const char* string);
+  STRING& operator=(const STRING& string);
+
+  STRING operator+(const STRING& string) const;
+  STRING operator+(char ch) const;
+
+  STRING& operator+=(const char* string);
+  STRING& operator+=(const STRING& string);
+  STRING& operator+=(char ch);
+
+  // Assignment for strings which are not null-terminated.
+  void assign(const char* cstr, int len);
+
+  // Appends the given string and int (as a %d) to this.
+  // += cannot be used for ints as there as a char += operator that would
+  // be ambiguous, and ints usually need a string before or between them
+  // anyway.
+  void add_str_int(const char* str, int number);
+  // Appends the given string and double (as a %.8g) to this.
+  void add_str_double(const char* str, double number);
+
+  // ensure capacity but keep pointer encapsulated
+  inline void ensure(int32_t min_capacity) {
+    ensure_cstr(min_capacity);
+  }
+
+ private:
+  typedef struct STRING_HEADER {
+    // How much space was allocated in the string buffer for char data.
+    int capacity_;
+
+    // used_ is how much of the capacity is currently being used,
+    // including a '\0' terminator.
+    //
+    // If used_ is 0 then string is nullptr (not even the '\0')
+    // else if used_ > 0 then it is strlen() + 1 (because it includes '\0')
+    // else strlen is >= 0 (not nullptr) but needs to be computed.
+    //      this condition is set when encapsulation is violated because
+    //      an API returned a mutable string.
+    //
+    // capacity_ - used_ = excess capacity that the string can grow
+    //                     without reallocating
+    mutable int used_;
+  } STRING_HEADER;
+
+  // To preserve the behavior of the old serialization, we only have space
+  // for one pointer in this structure. So we are embedding a data structure
+  // at the start of the storage that will hold additional state variables,
+  // then storing the actual string contents immediately after.
+  STRING_HEADER* data_;
+
+  // returns the header part of the storage
+  inline STRING_HEADER* GetHeader() {
+    return data_;
+  }
+  inline const STRING_HEADER* GetHeader() const {
+    return data_;
+  }
+
+  // returns the string data part of storage
+  inline char* GetCStr() {
+    return (reinterpret_cast<char*>(data_)) + sizeof(STRING_HEADER);
+  }
+
+  inline const char* GetCStr() const {
+    return (reinterpret_cast<const char*>(data_)) + sizeof(STRING_HEADER);
+  }
+  inline bool InvariantOk() const {
+#if STRING_IS_PROTECTED
+    return (GetHeader()->used_ == 0)
+               ? (string() == nullptr)
+               : (GetHeader()->used_ == (strlen(string()) + 1));
+#else
+    return true;
+#endif
+  }
+
+  // Ensure string has requested capacity as optimization
+  // to avoid unnecessary reallocations.
+  // The return value is a cstr buffer with at least requested capacity
+  char* ensure_cstr(int32_t min_capacity);
+
+  void FixHeader() const;  // make used_ non-negative, even if const
+
+  char* AllocData(int used, int capacity);
+  void DiscardData();
+};
+
+#endif
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/tess_version.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/tess_version.h
new file mode 100644
index 00000000..9620eb5d
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/tess_version.h
@@ -0,0 +1,30 @@
+///////////////////////////////////////////////////////////////////////
+// File:        version.h
+// Description: Version information
+//
+// (C) Copyright 2018, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+
+#ifndef TESSERACT_API_VERSION_H_
+#define TESSERACT_API_VERSION_H_
+
+#define TESSERACT_MAJOR_VERSION 4
+#define TESSERACT_MINOR_VERSION 1
+#define TESSERACT_MICRO_VERSION 1
+#define TESSERACT_VERSION \
+  (TESSERACT_MAJOR_VERSION << 16 | \
+   TESSERACT_MINOR_VERSION << 8 | \
+   TESSERACT_MICRO_VERSION)
+#define TESSERACT_VERSION_STR "4.1.1"
+
+#endif  // TESSERACT_API_VERSION_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/tesscallback.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/tesscallback.h
new file mode 100644
index 00000000..4cf19ae1
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/tesscallback.h
@@ -0,0 +1,915 @@
+///////////////////////////////////////////////////////////////////////
+// File:        tesscallback.h
+// Description: classes and functions to replace pointer-to-functions
+// Author:      Samuel Charron
+//
+// (C) Copyright 2006, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+
+#ifndef TESS_CALLBACK_SPECIALIZATIONS_H_
+#define TESS_CALLBACK_SPECIALIZATIONS_H_
+
+class TessClosure {
+ public:
+  virtual ~TessClosure();
+  virtual void Run() = 0;
+};
+
+template <class R>
+class TessResultCallback {
+ public:
+  virtual ~TessResultCallback() = default;
+  virtual R Run() = 0;
+};
+
+template <bool del, class R, class T>
+class _TessMemberResultCallback_0_0 : public TessResultCallback<R> {
+ public:
+  using base = TessResultCallback<R>;
+  using MemberSignature = R (T::*)();
+
+ private:
+  T* object_;
+  MemberSignature member_;
+
+ public:
+  inline _TessMemberResultCallback_0_0(T* object, MemberSignature member)
+      : object_(object), member_(member) {}
+
+  R Run() override {
+    if (!del) {
+      R result = (object_->*member_)();
+      return result;
+    }
+    R result = (object_->*member_)();
+    //  zero out the pointer to ensure segfault if used again
+    member_ = nullptr;
+    delete this;
+    return result;
+  }
+};
+
+template <bool del, class T>
+class _TessMemberResultCallback_0_0<del, void, T> : public TessClosure {
+ public:
+  using base = TessClosure;
+  using MemberSignature = void (T::*)();
+
+ private:
+  T* object_;
+  MemberSignature member_;
+
+ public:
+  inline _TessMemberResultCallback_0_0(T* object, MemberSignature member)
+      : object_(object), member_(member) {}
+
+  void Run() override {
+    if (!del) {
+      (object_->*member_)();
+    } else {
+      (object_->*member_)();
+      //  zero out the pointer to ensure segfault if used again
+      member_ = nullptr;
+      delete this;
+    }
+  }
+};
+
+#ifndef SWIG
+template <class T1, class T2, class R>
+inline typename _TessMemberResultCallback_0_0<true, R, T1>::base*
+NewTessCallback(T1* obj, R (T2::*member)()) {
+  return new _TessMemberResultCallback_0_0<true, R, T1>(obj, member);
+}
+#endif
+
+template <bool del, class R>
+class _TessFunctionResultCallback_0_0 : public TessResultCallback<R> {
+ public:
+  using base = TessResultCallback<R>;
+  using FunctionSignature = R (*)();
+
+ private:
+  FunctionSignature function_;
+
+ public:
+  inline explicit _TessFunctionResultCallback_0_0(FunctionSignature function)
+      : function_(function) {}
+
+  virtual R Run() {
+    if (!del) {
+      R result = (*function_)();
+      return result;
+    }
+    R result = (*function_)();
+    //  zero out the pointer to ensure segfault if used again
+    function_ = nullptr;
+    delete this;
+    return result;
+  }
+};
+
+template <bool del>
+class _TessFunctionResultCallback_0_0<del, void> : public TessClosure {
+ public:
+  using base = TessClosure;
+  using FunctionSignature = void (*)();
+
+ private:
+  FunctionSignature function_;
+
+ public:
+  inline explicit _TessFunctionResultCallback_0_0(FunctionSignature function)
+      : function_(function) {}
+
+  void Run() override {
+    if (!del) {
+      (*function_)();
+    } else {
+      (*function_)();
+      //  zero out the pointer to ensure segfault if used again
+      function_ = nullptr;
+      delete this;
+    }
+  }
+};
+
+template <class R>
+inline typename _TessFunctionResultCallback_0_0<true, R>::base* NewTessCallback(
+    R (*function)()) {
+  return new _TessFunctionResultCallback_0_0<true, R>(function);
+}
+
+// Specified by TR1 [4.7.2] Reference modifications.
+template <class T>
+struct remove_reference;
+template <typename T>
+struct remove_reference {
+  using type = T;
+};
+template <typename T>
+struct remove_reference<T&> {
+  using type = T;
+};
+
+// Identity<T>::type is a typedef of T. Useful for preventing the
+// compiler from inferring the type of an argument in templates.
+template <typename T>
+struct Identity {
+  using type = T;
+};
+
+template <bool del, class R, class T, class P1, class P2, class P3, class P4,
+          class P5>
+class _ConstTessMemberResultCallback_5_0 : public TessResultCallback<R> {
+ public:
+  using base = TessResultCallback<R>;
+  using MemberSignature = R (T::*)(P1, P2, P3, P4, P5) const;
+
+ private:
+  const T* object_;
+  MemberSignature member_;
+  typename remove_reference<P1>::type p1_;
+  typename remove_reference<P2>::type p2_;
+  typename remove_reference<P3>::type p3_;
+  typename remove_reference<P4>::type p4_;
+  typename remove_reference<P5>::type p5_;
+
+ public:
+  inline _ConstTessMemberResultCallback_5_0(const T* object,
+                                            MemberSignature member, P1 p1,
+                                            P2 p2, P3 p3, P4 p4, P5 p5)
+      : object_(object),
+        member_(member),
+        p1_(p1),
+        p2_(p2),
+        p3_(p3),
+        p4_(p4),
+        p5_(p5) {}
+
+  R Run() override {
+    if (!del) {
+      R result = (object_->*member_)(p1_, p2_, p3_, p4_, p5_);
+      return result;
+    }
+    R result = (object_->*member_)(p1_, p2_, p3_, p4_, p5_);
+    //  zero out the pointer to ensure segfault if used again
+    member_ = nullptr;
+    delete this;
+    return result;
+  }
+};
+
+template <bool del, class T, class P1, class P2, class P3, class P4, class P5>
+class _ConstTessMemberResultCallback_5_0<del, void, T, P1, P2, P3, P4, P5>
+    : public TessClosure {
+ public:
+  using base = TessClosure;
+  using MemberSignature = void (T::*)(P1, P2, P3, P4, P5) const;
+
+ private:
+  const T* object_;
+  MemberSignature member_;
+  typename remove_reference<P1>::type p1_;
+  typename remove_reference<P2>::type p2_;
+  typename remove_reference<P3>::type p3_;
+  typename remove_reference<P4>::type p4_;
+  typename remove_reference<P5>::type p5_;
+
+ public:
+  inline _ConstTessMemberResultCallback_5_0(const T* object,
+                                            MemberSignature member, P1 p1,
+                                            P2 p2, P3 p3, P4 p4, P5 p5)
+      : object_(object),
+        member_(member),
+        p1_(p1),
+        p2_(p2),
+        p3_(p3),
+        p4_(p4),
+        p5_(p5) {}
+
+  void Run() override {
+    if (!del) {
+      (object_->*member_)(p1_, p2_, p3_, p4_, p5_);
+    } else {
+      (object_->*member_)(p1_, p2_, p3_, p4_, p5_);
+      //  zero out the pointer to ensure segfault if used again
+      member_ = nullptr;
+      delete this;
+    }
+  }
+};
+
+#ifndef SWIG
+template <class T1, class T2, class R, class P1, class P2, class P3, class P4,
+          class P5>
+inline typename _ConstTessMemberResultCallback_5_0<false, R, T1, P1, P2, P3, P4,
+                                                   P5>::base*
+NewPermanentTessCallback(const T1* obj,
+                         R (T2::*member)(P1, P2, P3, P4, P5) const,
+                         typename Identity<P1>::type p1,
+                         typename Identity<P2>::type p2,
+                         typename Identity<P3>::type p3,
+                         typename Identity<P4>::type p4,
+                         typename Identity<P5>::type p5) {
+  return new _ConstTessMemberResultCallback_5_0<false, R, T1, P1, P2, P3, P4,
+                                                P5>(obj, member, p1, p2, p3, p4,
+                                                    p5);
+}
+#endif
+
+template <bool del, class R, class T, class P1, class P2, class P3, class P4,
+          class P5, class P6>
+class _ConstTessMemberResultCallback_6_0 : public TessResultCallback<R> {
+ public:
+  using base = TessResultCallback<R>;
+  using MemberSignature = R (T::*)(P1, P2, P3, P4, P5, P6) const;
+
+ private:
+  const T* object_;
+  MemberSignature member_;
+  typename remove_reference<P1>::type p1_;
+  typename remove_reference<P2>::type p2_;
+  typename remove_reference<P3>::type p3_;
+  typename remove_reference<P4>::type p4_;
+  typename remove_reference<P5>::type p5_;
+  typename remove_reference<P6>::type p6_;
+
+ public:
+  inline _ConstTessMemberResultCallback_6_0(const T* object,
+                                            MemberSignature member, P1 p1,
+                                            P2 p2, P3 p3, P4 p4, P5 p5, P6 p6)
+      : object_(object),
+        member_(member),
+        p1_(p1),
+        p2_(p2),
+        p3_(p3),
+        p4_(p4),
+        p5_(p5),
+        p6_(p6) {}
+
+  R Run() override {
+    if (!del) {
+      R result = (object_->*member_)(p1_, p2_, p3_, p4_, p5_, p6_);
+      return result;
+    }
+    R result = (object_->*member_)(p1_, p2_, p3_, p4_, p5_, p6_);
+    //  zero out the pointer to ensure segfault if used again
+    member_ = nullptr;
+    delete this;
+    return result;
+  }
+};
+
+template <bool del, class T, class P1, class P2, class P3, class P4, class P5,
+          class P6>
+class _ConstTessMemberResultCallback_6_0<del, void, T, P1, P2, P3, P4, P5, P6>
+    : public TessClosure {
+ public:
+  using base = TessClosure;
+  using MemberSignature = void (T::*)(P1, P2, P3, P4, P5, P6) const;
+
+ private:
+  const T* object_;
+  MemberSignature member_;
+  typename remove_reference<P1>::type p1_;
+  typename remove_reference<P2>::type p2_;
+  typename remove_reference<P3>::type p3_;
+  typename remove_reference<P4>::type p4_;
+  typename remove_reference<P5>::type p5_;
+  typename remove_reference<P6>::type p6_;
+
+ public:
+  inline _ConstTessMemberResultCallback_6_0(const T* object,
+                                            MemberSignature member, P1 p1,
+                                            P2 p2, P3 p3, P4 p4, P5 p5, P6 p6)
+      : object_(object),
+        member_(member),
+        p1_(p1),
+        p2_(p2),
+        p3_(p3),
+        p4_(p4),
+        p5_(p5),
+        p6_(p6) {}
+
+  void Run() override {
+    if (!del) {
+      (object_->*member_)(p1_, p2_, p3_, p4_, p5_, p6_);
+    } else {
+      (object_->*member_)(p1_, p2_, p3_, p4_, p5_, p6_);
+      //  zero out the pointer to ensure segfault if used again
+      member_ = nullptr;
+      delete this;
+    }
+  }
+};
+
+#ifndef SWIG
+template <class T1, class T2, class R, class P1, class P2, class P3, class P4,
+          class P5, class P6>
+inline typename _ConstTessMemberResultCallback_6_0<false, R, T1, P1, P2, P3, P4,
+                                                   P5, P6>::base*
+NewPermanentTessCallback(
+    const T1* obj, R (T2::*member)(P1, P2, P3, P4, P5, P6) const,
+    typename Identity<P1>::type p1, typename Identity<P2>::type p2,
+    typename Identity<P3>::type p3, typename Identity<P4>::type p4,
+    typename Identity<P5>::type p5, typename Identity<P6>::type p6) {
+  return new _ConstTessMemberResultCallback_6_0<false, R, T1, P1, P2, P3, P4,
+                                                P5, P6>(obj, member, p1, p2, p3,
+                                                        p4, p5, p6);
+}
+#endif
+
+template <class A1>
+class TessCallback1 {
+ public:
+  virtual ~TessCallback1() = default;
+  virtual void Run(A1) = 0;
+};
+
+template <class R, class A1>
+class TessResultCallback1 {
+ public:
+  virtual ~TessResultCallback1() = default;
+  virtual R Run(A1) = 0;
+};
+
+template <class A1, class A2>
+class TessCallback2 {
+ public:
+  virtual ~TessCallback2() = default;
+  virtual void Run(A1, A2) = 0;
+};
+
+template <class R, class A1, class A2>
+class TessResultCallback2 {
+ public:
+  virtual ~TessResultCallback2() = default;
+  virtual R Run(A1, A2) = 0;
+};
+
+template <class A1, class A2, class A3>
+class TessCallback3 {
+ public:
+  virtual ~TessCallback3() = default;
+  virtual void Run(A1, A2, A3) = 0;
+};
+
+template <class R, class A1, class A2, class A3>
+class TessResultCallback3 {
+ public:
+  virtual ~TessResultCallback3() = default;
+  virtual R Run(A1, A2, A3) = 0;
+};
+
+template <class A1, class A2, class A3, class A4>
+class TessCallback4 {
+ public:
+  virtual ~TessCallback4() = default;
+  virtual void Run(A1, A2, A3, A4) = 0;
+};
+
+template <class R, class A1, class A2, class A3, class A4>
+class TessResultCallback4 {
+ public:
+  virtual ~TessResultCallback4() = default;
+  virtual R Run(A1, A2, A3, A4) = 0;
+};
+
+template <bool del, class R, class T, class A1>
+class _TessMemberResultCallback_0_1 : public TessResultCallback1<R, A1> {
+ public:
+  typedef TessResultCallback1<R, A1> base;
+  using MemberSignature = R (T::*)(A1);
+
+ private:
+  T* object_;
+  MemberSignature member_;
+
+ public:
+  inline _TessMemberResultCallback_0_1(T* object, MemberSignature member)
+      : object_(object), member_(member) {}
+
+  R Run(A1 a1) override {
+    if (!del) {
+      R result = (object_->*member_)(a1);
+      return result;
+    }
+    R result = (object_->*member_)(a1);
+    //  zero out the pointer to ensure segfault if used again
+    member_ = nullptr;
+    delete this;
+    return result;
+  }
+};
+
+template <bool del, class T, class A1>
+class _TessMemberResultCallback_0_1<del, void, T, A1>
+    : public TessCallback1<A1> {
+ public:
+  using base = TessCallback1<A1>;
+  using MemberSignature = void (T::*)(A1);
+
+ private:
+  T* object_;
+  MemberSignature member_;
+
+ public:
+  inline _TessMemberResultCallback_0_1(T* object, MemberSignature member)
+      : object_(object), member_(member) {}
+
+  void Run(A1 a1) override {
+    if (!del) {
+      (object_->*member_)(a1);
+    } else {
+      (object_->*member_)(a1);
+      //  zero out the pointer to ensure segfault if used again
+      member_ = nullptr;
+      delete this;
+    }
+  }
+};
+
+#ifndef SWIG
+template <class T1, class T2, class R, class A1>
+inline typename _TessMemberResultCallback_0_1<false, R, T1, A1>::base*
+NewPermanentTessCallback(T1* obj, R (T2::*member)(A1)) {
+  return new _TessMemberResultCallback_0_1<false, R, T1, A1>(obj, member);
+}
+#endif
+
+template <bool del, class R, class A1>
+class _TessFunctionResultCallback_0_1 : public TessResultCallback1<R, A1> {
+ public:
+  typedef TessResultCallback1<R, A1> base;
+  using FunctionSignature = R (*)(A1);
+
+ private:
+  FunctionSignature function_;
+
+ public:
+  inline explicit _TessFunctionResultCallback_0_1(FunctionSignature function)
+      : function_(function) {}
+
+  virtual R Run(A1 a1) {
+    if (!del) {
+      R result = (*function_)(a1);
+      return result;
+    }
+    R result = (*function_)(a1);
+    //  zero out the pointer to ensure segfault if used again
+    function_ = nullptr;
+    delete this;
+    return result;
+  }
+};
+
+template <bool del, class A1>
+class _TessFunctionResultCallback_0_1<del, void, A1>
+    : public TessCallback1<A1> {
+ public:
+  using base = TessCallback1<A1>;
+  using FunctionSignature = void (*)(A1);
+
+ private:
+  FunctionSignature function_;
+
+ public:
+  inline explicit _TessFunctionResultCallback_0_1(FunctionSignature function)
+      : function_(function) {}
+
+  void Run(A1 a1) override {
+    if (!del) {
+      (*function_)(a1);
+    } else {
+      (*function_)(a1);
+      //  zero out the pointer to ensure segfault if used again
+      function_ = nullptr;
+      delete this;
+    }
+  }
+};
+
+template <class R, class A1>
+inline typename _TessFunctionResultCallback_0_1<false, R, A1>::base*
+NewPermanentTessCallback(R (*function)(A1)) {
+  return new _TessFunctionResultCallback_0_1<false, R, A1>(function);
+}
+
+template <bool del, class R, class P1, class A1>
+class _TessFunctionResultCallback_1_1 : public TessResultCallback1<R, A1> {
+ public:
+  typedef TessResultCallback1<R, A1> base;
+  using FunctionSignature = R (*)(P1, A1);
+
+ private:
+  FunctionSignature function_;
+  typename remove_reference<P1>::type p1_;
+
+ public:
+  inline _TessFunctionResultCallback_1_1(FunctionSignature function, P1 p1)
+      : function_(function), p1_(p1) {}
+
+  virtual R Run(A1 a1) {
+    if (!del) {
+      R result = (*function_)(p1_, a1);
+      return result;
+    }
+    R result = (*function_)(p1_, a1);
+    //  zero out the pointer to ensure segfault if used again
+    function_ = nullptr;
+    delete this;
+    return result;
+  }
+};
+
+template <bool del, class P1, class A1>
+class _TessFunctionResultCallback_1_1<del, void, P1, A1>
+    : public TessCallback1<A1> {
+ public:
+  using base = TessCallback1<A1>;
+  using FunctionSignature = void (*)(P1, A1);
+
+ private:
+  FunctionSignature function_;
+  typename remove_reference<P1>::type p1_;
+
+ public:
+  inline _TessFunctionResultCallback_1_1(FunctionSignature function, P1 p1)
+      : function_(function), p1_(p1) {}
+
+  void Run(A1 a1) override {
+    if (!del) {
+      (*function_)(p1_, a1);
+    } else {
+      (*function_)(p1_, a1);
+      //  zero out the pointer to ensure segfault if used again
+      function_ = nullptr;
+      delete this;
+    }
+  }
+};
+
+template <class R, class P1, class A1>
+inline typename _TessFunctionResultCallback_1_1<false, R, P1, A1>::base*
+NewPermanentTessCallback(R (*function)(P1, A1),
+                         typename Identity<P1>::type p1) {
+  return new _TessFunctionResultCallback_1_1<false, R, P1, A1>(function, p1);
+}
+
+template <bool del, class R, class T, class A1, class A2>
+class _ConstTessMemberResultCallback_0_2
+    : public TessResultCallback2<R, A1, A2> {
+ public:
+  typedef TessResultCallback2<R, A1, A2> base;
+  using MemberSignature = R (T::*)(A1, A2) const;
+
+ private:
+  const T* object_;
+  MemberSignature member_;
+
+ public:
+  inline _ConstTessMemberResultCallback_0_2(const T* object,
+                                            MemberSignature member)
+      : object_(object), member_(member) {}
+
+  R Run(A1 a1, A2 a2) override {
+    if (!del) {
+      R result = (object_->*member_)(a1, a2);
+      return result;
+    }
+    R result = (object_->*member_)(a1, a2);
+    //  zero out the pointer to ensure segfault if used again
+    member_ = nullptr;
+    delete this;
+    return result;
+  }
+};
+
+template <bool del, class T, class A1, class A2>
+class _ConstTessMemberResultCallback_0_2<del, void, T, A1, A2>
+    : public TessCallback2<A1, A2> {
+ public:
+  typedef TessCallback2<A1, A2> base;
+  using MemberSignature = void (T::*)(A1, A2) const;
+
+ private:
+  const T* object_;
+  MemberSignature member_;
+
+ public:
+  inline _ConstTessMemberResultCallback_0_2(const T* object,
+                                            MemberSignature member)
+      : object_(object), member_(member) {}
+
+  virtual void Run(A1 a1, A2 a2) {
+    if (!del) {
+      (object_->*member_)(a1, a2);
+    } else {
+      (object_->*member_)(a1, a2);
+      //  zero out the pointer to ensure segfault if used again
+      member_ = nullptr;
+      delete this;
+    }
+  }
+};
+
+#ifndef SWIG
+template <class T1, class T2, class R, class A1, class A2>
+inline typename _ConstTessMemberResultCallback_0_2<false, R, T1, A1, A2>::base*
+NewPermanentTessCallback(const T1* obj, R (T2::*member)(A1, A2) const) {
+  return new _ConstTessMemberResultCallback_0_2<false, R, T1, A1, A2>(obj,
+                                                                      member);
+}
+#endif
+
+template <bool del, class R, class T, class A1, class A2>
+class _TessMemberResultCallback_0_2 : public TessResultCallback2<R, A1, A2> {
+ public:
+  typedef TessResultCallback2<R, A1, A2> base;
+  using MemberSignature = R (T::*)(A1, A2);
+
+ private:
+  T* object_;
+  MemberSignature member_;
+
+ public:
+  inline _TessMemberResultCallback_0_2(T* object, MemberSignature member)
+      : object_(object), member_(member) {}
+
+  R Run(A1 a1, A2 a2) override {
+    if (!del) {
+      R result = (object_->*member_)(a1, a2);
+      return result;
+    }
+    R result = (object_->*member_)(a1, a2);
+    //  zero out the pointer to ensure segfault if used again
+    member_ = nullptr;
+    delete this;
+    return result;
+  }
+};
+
+template <bool del, class T, class A1, class A2>
+class _TessMemberResultCallback_0_2<del, void, T, A1, A2>
+    : public TessCallback2<A1, A2> {
+ public:
+  typedef TessCallback2<A1, A2> base;
+  using MemberSignature = void (T::*)(A1, A2);
+
+ private:
+  T* object_;
+  MemberSignature member_;
+
+ public:
+  inline _TessMemberResultCallback_0_2(T* object, MemberSignature member)
+      : object_(object), member_(member) {}
+
+  virtual void Run(A1 a1, A2 a2) {
+    if (!del) {
+      (object_->*member_)(a1, a2);
+    } else {
+      (object_->*member_)(a1, a2);
+      //  zero out the pointer to ensure segfault if used again
+      member_ = nullptr;
+      delete this;
+    }
+  }
+};
+
+#ifndef SWIG
+template <class T1, class T2, class R, class A1, class A2>
+inline typename _TessMemberResultCallback_0_2<false, R, T1, A1, A2>::base*
+NewPermanentTessCallback(T1* obj, R (T2::*member)(A1, A2)) {
+  return new _TessMemberResultCallback_0_2<false, R, T1, A1, A2>(obj, member);
+}
+#endif
+
+template <bool del, class R, class A1, class A2>
+class _TessFunctionResultCallback_0_2 : public TessResultCallback2<R, A1, A2> {
+ public:
+  typedef TessResultCallback2<R, A1, A2> base;
+  using FunctionSignature = R (*)(A1, A2);
+
+ private:
+  FunctionSignature function_;
+
+ public:
+  inline explicit _TessFunctionResultCallback_0_2(FunctionSignature function)
+      : function_(function) {}
+
+  R Run(A1 a1, A2 a2) override {
+    if (!del) {
+      R result = (*function_)(a1, a2);
+      return result;
+    }
+    R result = (*function_)(a1, a2);
+    //  zero out the pointer to ensure segfault if used again
+    function_ = nullptr;
+    delete this;
+    return result;
+  }
+};
+
+template <bool del, class A1, class A2>
+class _TessFunctionResultCallback_0_2<del, void, A1, A2>
+    : public TessCallback2<A1, A2> {
+ public:
+  typedef TessCallback2<A1, A2> base;
+  using FunctionSignature = void (*)(A1, A2);
+
+ private:
+  FunctionSignature function_;
+
+ public:
+  inline explicit _TessFunctionResultCallback_0_2(FunctionSignature function)
+      : function_(function) {}
+
+  virtual void Run(A1 a1, A2 a2) {
+    if (!del) {
+      (*function_)(a1, a2);
+    } else {
+      (*function_)(a1, a2);
+      //  zero out the pointer to ensure segfault if used again
+      function_ = nullptr;
+      delete this;
+    }
+  }
+};
+
+template <class R, class A1, class A2>
+inline typename _TessFunctionResultCallback_0_2<false, R, A1, A2>::base*
+NewPermanentTessCallback(R (*function)(A1, A2)) {
+  return new _TessFunctionResultCallback_0_2<false, R, A1, A2>(function);
+}
+
+template <bool del, class R, class T, class P1, class P2, class A1, class A2>
+class _TessMemberResultCallback_2_2 : public TessResultCallback2<R, A1, A2> {
+ public:
+  typedef TessResultCallback2<R, A1, A2> base;
+  using MemberSignature = R (T::*)(P1, P2, A1, A2);
+
+ private:
+  T* object_;
+  MemberSignature member_;
+  typename remove_reference<P1>::type p1_;
+  typename remove_reference<P2>::type p2_;
+
+ public:
+  inline _TessMemberResultCallback_2_2(T* object, MemberSignature member, P1 p1,
+                                       P2 p2)
+      : object_(object), member_(member), p1_(p1), p2_(p2) {}
+
+  R Run(A1 a1, A2 a2) override {
+    if (!del) {
+      R result = (object_->*member_)(p1_, p2_, a1, a2);
+      return result;
+    }
+    R result = (object_->*member_)(p1_, p2_, a1, a2);
+    //  zero out the pointer to ensure segfault if used again
+    member_ = nullptr;
+    delete this;
+    return result;
+  }
+};
+
+#ifndef SWIG
+template <class T1, class T2, class R, class P1, class P2, class A1, class A2>
+inline
+    typename _TessMemberResultCallback_2_2<false, R, T1, P1, P2, A1, A2>::base*
+    NewPermanentTessCallback(T1* obj, R (T2::*member)(P1, P2, A1, A2),
+                             typename Identity<P1>::type p1,
+                             typename Identity<P2>::type p2) {
+  return new _TessMemberResultCallback_2_2<false, R, T1, P1, P2, A1, A2>(
+      obj, member, p1, p2);
+}
+#endif
+
+template <bool del, class R, class T, class A1, class A2, class A3>
+class _ConstTessMemberResultCallback_0_3
+    : public TessResultCallback3<R, A1, A2, A3> {
+ public:
+  typedef TessResultCallback3<R, A1, A2, A3> base;
+  using MemberSignature = R (T::*)(A1, A2, A3) const;
+
+ private:
+  const T* object_;
+  MemberSignature member_;
+
+ public:
+  inline _ConstTessMemberResultCallback_0_3(const T* object,
+                                            MemberSignature member)
+      : object_(object), member_(member) {}
+
+  R Run(A1 a1, A2 a2, A3 a3) override {
+    if (!del) {
+      R result = (object_->*member_)(a1, a2, a3);
+      return result;
+    }
+    R result = (object_->*member_)(a1, a2, a3);
+    //  zero out the pointer to ensure segfault if used again
+    member_ = nullptr;
+    delete this;
+    return result;
+  }
+};
+
+#ifndef SWIG
+template <class T1, class T2, class R, class A1, class A2, class A3>
+inline
+    typename _ConstTessMemberResultCallback_0_3<false, R, T1, A1, A2, A3>::base*
+    NewPermanentTessCallback(const T1* obj, R (T2::*member)(A1, A2, A3) const) {
+  return new _ConstTessMemberResultCallback_0_3<false, R, T1, A1, A2, A3>(
+      obj, member);
+}
+#endif
+
+template <bool del, class R, class T, class A1, class A2, class A3, class A4>
+class _TessMemberResultCallback_0_4
+    : public TessResultCallback4<R, A1, A2, A3, A4> {
+ public:
+  typedef TessResultCallback4<R, A1, A2, A3, A4> base;
+  using MemberSignature = R (T::*)(A1, A2, A3, A4);
+
+ private:
+  T* object_;
+  MemberSignature member_;
+
+ public:
+  inline _TessMemberResultCallback_0_4(T* object, MemberSignature member)
+      : object_(object), member_(member) {}
+
+  virtual R Run(A1 a1, A2 a2, A3 a3, A4 a4) {
+    if (!del) {
+      R result = (object_->*member_)(a1, a2, a3, a4);
+      return result;
+    }
+    R result = (object_->*member_)(a1, a2, a3, a4);
+    //  zero out the pointer to ensure segfault if used again
+    member_ = nullptr;
+    delete this;
+    return result;
+  }
+};
+
+#ifndef SWIG
+template <class T1, class T2, class R, class A1, class A2, class A3, class A4>
+inline
+    typename _TessMemberResultCallback_0_4<false, R, T1, A1, A2, A3, A4>::base*
+    NewPermanentTessCallback(T1* obj, R (T2::*member)(A1, A2, A3, A4)) {
+  return new _TessMemberResultCallback_0_4<false, R, T1, A1, A2, A3, A4>(
+      obj, member);
+}
+#endif
+
+#endif  // TESS_CALLBACK_SPECIALIZATIONS_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/thresholder.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/thresholder.h
new file mode 100644
index 00000000..b63f51a2
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/thresholder.h
@@ -0,0 +1,189 @@
+///////////////////////////////////////////////////////////////////////
+// File:        thresholder.h
+// Description: Base API for thresholding images in tesseract.
+// Author:      Ray Smith
+//
+// (C) Copyright 2008, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+
+#ifndef TESSERACT_CCMAIN_THRESHOLDER_H_
+#define TESSERACT_CCMAIN_THRESHOLDER_H_
+
+#include "platform.h"
+#include "publictypes.h"
+
+struct Pix;
+
+namespace tesseract {
+
+/// Base class for all tesseract image thresholding classes.
+/// Specific classes can add new thresholding methods by
+/// overriding ThresholdToPix.
+/// Each instance deals with a single image, but the design is intended to
+/// be useful for multiple calls to SetRectangle and ThresholdTo* if
+/// desired.
+class TESS_API ImageThresholder {
+ public:
+  ImageThresholder();
+  virtual ~ImageThresholder();
+
+  /// Destroy the Pix if there is one, freeing memory.
+  virtual void Clear();
+
+  /// Return true if no image has been set.
+  bool IsEmpty() const;
+
+  /// SetImage makes a copy of all the image data, so it may be deleted
+  /// immediately after this call.
+  /// Greyscale of 8 and color of 24 or 32 bits per pixel may be given.
+  /// Palette color images will not work properly and must be converted to
+  /// 24 bit.
+  /// Binary images of 1 bit per pixel may also be given but they must be
+  /// byte packed with the MSB of the first byte being the first pixel, and a
+  /// one pixel is WHITE. For binary images set bytes_per_pixel=0.
+  void SetImage(const unsigned char* imagedata, int width, int height,
+                int bytes_per_pixel, int bytes_per_line);
+
+  /// Store the coordinates of the rectangle to process for later use.
+  /// Doesn't actually do any thresholding.
+  void SetRectangle(int left, int top, int width, int height);
+
+  /// Get enough parameters to be able to rebuild bounding boxes in the
+  /// original image (not just within the rectangle).
+  /// Left and top are enough with top-down coordinates, but
+  /// the height of the rectangle and the image are needed for bottom-up.
+  virtual void GetImageSizes(int* left, int* top, int* width, int* height,
+                             int* imagewidth, int* imageheight);
+
+  /// Return true if the source image is color.
+  bool IsColor() const {
+    return pix_channels_ >= 3;
+  }
+
+  /// Returns true if the source image is binary.
+  bool IsBinary() const {
+    return pix_channels_ == 0;
+  }
+
+  int GetScaleFactor() const {
+    return scale_;
+  }
+
+  // Set the resolution of the source image in pixels per inch.
+  // This should be called right after SetImage(), and will let us return
+  // appropriate font sizes for the text.
+  void SetSourceYResolution(int ppi) {
+    yres_ = ppi;
+    estimated_res_ = ppi;
+  }
+  int GetSourceYResolution() const {
+    return yres_;
+  }
+  int GetScaledYResolution() const {
+    return scale_ * yres_;
+  }
+  // Set the resolution of the source image in pixels per inch, as estimated
+  // by the thresholder from the text size found during thresholding.
+  // This value will be used to set internal size thresholds during recognition
+  // and will not influence the output "point size." The default value is
+  // the same as the source resolution. (yres_)
+  void SetEstimatedResolution(int ppi) {
+    estimated_res_ = ppi;
+  }
+  // Returns the estimated resolution, including any active scaling.
+  // This value will be used to set internal size thresholds during recognition.
+  int GetScaledEstimatedResolution() const {
+    return scale_ * estimated_res_;
+  }
+
+  /// Pix vs raw, which to use? Pix is the preferred input for efficiency,
+  /// since raw buffers are copied.
+  /// SetImage for Pix clones its input, so the source pix may be pixDestroyed
+  /// immediately after, but may not go away until after the Thresholder has
+  /// finished with it.
+  void SetImage(const Pix* pix);
+
+  /// Threshold the source image as efficiently as possible to the output Pix.
+  /// Creates a Pix and sets pix to point to the resulting pointer.
+  /// Caller must use pixDestroy to free the created Pix.
+  /// Returns false on error.
+  virtual bool ThresholdToPix(PageSegMode pageseg_mode, Pix** pix);
+
+  // Gets a pix that contains an 8 bit threshold value at each pixel. The
+  // returned pix may be an integer reduction of the binary image such that
+  // the scale factor may be inferred from the ratio of the sizes, even down
+  // to the extreme of a 1x1 pixel thresholds image.
+  // Ideally the 8 bit threshold should be the exact threshold used to generate
+  // the binary image in ThresholdToPix, but this is not a hard constraint.
+  // Returns nullptr if the input is binary. PixDestroy after use.
+  virtual Pix* GetPixRectThresholds();
+
+  /// Get a clone/copy of the source image rectangle.
+  /// The returned Pix must be pixDestroyed.
+  /// This function will be used in the future by the page layout analysis, and
+  /// the layout analysis that uses it will only be available with Leptonica,
+  /// so there is no raw equivalent.
+  Pix* GetPixRect();
+
+  // Get a clone/copy of the source image rectangle, reduced to greyscale,
+  // and at the same resolution as the output binary.
+  // The returned Pix must be pixDestroyed.
+  // Provided to the classifier to extract features from the greyscale image.
+  virtual Pix* GetPixRectGrey();
+
+ protected:
+  // ----------------------------------------------------------------------
+  // Utility functions that may be useful components for other thresholders.
+
+  /// Common initialization shared between SetImage methods.
+  virtual void Init();
+
+  /// Return true if we are processing the full image.
+  bool IsFullImage() const {
+    return rect_left_ == 0 && rect_top_ == 0 &&
+           rect_width_ == image_width_ && rect_height_ == image_height_;
+  }
+
+  // Otsu thresholds the rectangle, taking the rectangle from *this.
+  void OtsuThresholdRectToPix(Pix* src_pix, Pix** out_pix) const;
+
+  /// Threshold the rectangle, taking everything except the src_pix
+  /// from the class, using thresholds/hi_values to the output pix.
+  /// NOTE that num_channels is the size of the thresholds and hi_values
+  // arrays and also the bytes per pixel in src_pix.
+  void ThresholdRectToPix(Pix* src_pix, int num_channels,
+                          const int* thresholds, const int* hi_values,
+                          Pix** pix) const;
+
+ protected:
+  /// Clone or other copy of the source Pix.
+  /// The pix will always be PixDestroy()ed on destruction of the class.
+  Pix*                 pix_;
+
+  int                  image_width_;    ///< Width of source pix_.
+  int                  image_height_;   ///< Height of source pix_.
+  int                  pix_channels_;   ///< Number of 8-bit channels in pix_.
+  int                  pix_wpl_;        ///< Words per line of pix_.
+  // Limits of image rectangle to be processed.
+  int                  scale_;          ///< Scale factor from original image.
+  int                  yres_;           ///< y pixels/inch in source image.
+  int                  estimated_res_;  ///< Resolution estimate from text size.
+  int                  rect_left_;
+  int                  rect_top_;
+  int                  rect_width_;
+  int                  rect_height_;
+};
+
+}  // namespace tesseract.
+
+#endif  // TESSERACT_CCMAIN_THRESHOLDER_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/unichar.h b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/unichar.h
new file mode 100644
index 00000000..5daca950
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/include/tesseract/unichar.h
@@ -0,0 +1,176 @@
+///////////////////////////////////////////////////////////////////////
+// File:        unichar.h
+// Description: Unicode character/ligature class.
+// Author:      Ray Smith
+//
+// (C) Copyright 2006, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+
+#ifndef TESSERACT_CCUTIL_UNICHAR_H_
+#define TESSERACT_CCUTIL_UNICHAR_H_
+
+#include <memory.h>
+#include <cstring>
+#include <string>
+#include <vector>
+#include "platform.h"
+
+// Maximum number of characters that can be stored in a UNICHAR. Must be
+// at least 4. Must not exceed 31 without changing the coding of length.
+#define UNICHAR_LEN 30
+
+// TODO(rays) Move these to the tesseract namespace.
+// A UNICHAR_ID is the unique id of a unichar.
+using UNICHAR_ID = int;
+
+// A variable to indicate an invalid or uninitialized unichar id.
+static const int INVALID_UNICHAR_ID = -1;
+// A special unichar that corresponds to INVALID_UNICHAR_ID.
+static const char INVALID_UNICHAR[] = "__INVALID_UNICHAR__";
+
+enum StrongScriptDirection {
+  DIR_NEUTRAL = 0,        // Text contains only neutral characters.
+  DIR_LEFT_TO_RIGHT = 1,  // Text contains no Right-to-Left characters.
+  DIR_RIGHT_TO_LEFT = 2,  // Text contains no Left-to-Right characters.
+  DIR_MIX = 3,            // Text contains a mixture of left-to-right
+                          // and right-to-left characters.
+};
+
+namespace tesseract {
+
+using char32 = signed int;
+
+// The UNICHAR class holds a single classification result. This may be
+// a single Unicode character (stored as between 1 and 4 utf8 bytes) or
+// multiple Unicode characters representing the NFKC expansion of a ligature
+// such as fi, ffl etc. These are also stored as utf8.
+class UNICHAR {
+ public:
+  UNICHAR() {
+    memset(chars, 0, UNICHAR_LEN);
+  }
+
+  // Construct from a utf8 string. If len<0 then the string is null terminated.
+  // If the string is too long to fit in the UNICHAR then it takes only what
+  // will fit.
+  UNICHAR(const char* utf8_str, int len);
+
+  // Construct from a single UCS4 character.
+  explicit UNICHAR(int unicode);
+
+  // Default copy constructor and operator= are OK.
+
+  // Get the first character as UCS-4.
+  int first_uni() const;
+
+  // Get the length of the UTF8 string.
+  int utf8_len() const {
+    int len = chars[UNICHAR_LEN - 1];
+    return len >= 0 && len < UNICHAR_LEN ? len : UNICHAR_LEN;
+  }
+
+  // Get a UTF8 string, but NOT nullptr terminated.
+  const char* utf8() const {
+    return chars;
+  }
+
+  // Get a terminated UTF8 string: Must delete[] it after use.
+  char* utf8_str() const;
+
+  // Get the number of bytes in the first character of the given utf8 string.
+  static int utf8_step(const char* utf8_str);
+
+  // A class to simplify iterating over and accessing elements of a UTF8
+  // string. Note that unlike the UNICHAR class, const_iterator does NOT COPY or
+  // take ownership of the underlying byte array. It also does not permit
+  // modification of the array (as the name suggests).
+  //
+  // Example:
+  //   for (UNICHAR::const_iterator it = UNICHAR::begin(str, str_len);
+  //        it != UNICHAR::end(str, len);
+  //        ++it) {
+  //     tprintf("UCS-4 symbol code = %d\n", *it);
+  //     char buf[5];
+  //     int char_len = it.get_utf8(buf); buf[char_len] = '\0';
+  //     tprintf("Char = %s\n", buf);
+  //   }
+  class const_iterator {
+    using CI = const_iterator;
+
+   public:
+    // Step to the next UTF8 character.
+    // If the current position is at an illegal UTF8 character, then print an
+    // error message and step by one byte. If the current position is at a
+    // nullptr value, don't step past it.
+    const_iterator& operator++();
+
+    // Return the UCS-4 value at the current position.
+    // If the current position is at an illegal UTF8 value, return a single
+    // space character.
+    int operator*() const;
+
+    // Store the UTF-8 encoding of the current codepoint into buf, which must be
+    // at least 4 bytes long. Return the number of bytes written.
+    // If the current position is at an illegal UTF8 value, writes a single
+    // space character and returns 1.
+    // Note that this method does not null-terminate the buffer.
+    int get_utf8(char* buf) const;
+    // Returns the number of bytes of the current codepoint. Returns 1 if the
+    // current position is at an illegal UTF8 value.
+    int utf8_len() const;
+    // Returns true if the UTF-8 encoding at the current position is legal.
+    bool is_legal() const;
+
+    // Return the pointer into the string at the current position.
+    const char* utf8_data() const {
+      return it_;
+    }
+
+    // Iterator equality operators.
+    friend bool operator==(const CI& lhs, const CI& rhs) {
+      return lhs.it_ == rhs.it_;
+    }
+    friend bool operator!=(const CI& lhs, const CI& rhs) {
+      return !(lhs == rhs);
+    }
+
+   private:
+    friend class UNICHAR;
+    explicit const_iterator(const char* it) : it_(it) {}
+
+    const char* it_;  // Pointer into the string.
+  };
+
+  // Create a start/end iterator pointing to a string. Note that these methods
+  // are static and do NOT create a copy or take ownership of the underlying
+  // array.
+  static const_iterator begin(const char* utf8_str, int byte_length);
+  static const_iterator end(const char* utf8_str, int byte_length);
+
+  // Converts a utf-8 string to a vector of unicodes.
+  // Returns an empty vector if the input contains invalid UTF-8.
+  static std::vector<char32> UTF8ToUTF32(const char* utf8_str);
+  // Converts a vector of unicodes to a utf8 string.
+  // Returns an empty string if the input contains an invalid unicode.
+  static std::string UTF32ToUTF8(const std::vector<char32>& str32);
+
+ private:
+  // A UTF-8 representation of 1 or more Unicode characters.
+  // The last element (chars[UNICHAR_LEN - 1]) is a length if
+  // its value < UNICHAR_LEN, otherwise it is a genuine character.
+  char chars[UNICHAR_LEN]{};
+};
+
+}  // namespace tesseract
+
+#endif  // TESSERACT_CCUTIL_UNICHAR_H_
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/lib/libtesseract.a b/third_party/ocr/tesseract-ocr/uos/aarch64/lib/libtesseract.a
new file mode 100644
index 00000000..355edfb7
Binary files /dev/null and b/third_party/ocr/tesseract-ocr/uos/aarch64/lib/libtesseract.a differ
diff --git a/third_party/ocr/tesseract-ocr/uos/aarch64/lib/pkgconfig/tesseract.pc b/third_party/ocr/tesseract-ocr/uos/aarch64/lib/pkgconfig/tesseract.pc
new file mode 100644
index 00000000..bb897668
--- /dev/null
+++ b/third_party/ocr/tesseract-ocr/uos/aarch64/lib/pkgconfig/tesseract.pc
@@ -0,0 +1,12 @@
+prefix=/data/home/huagao/sane/code_app/third_party/ocr/tesseract-ocr/uos/aarch64/tesseract-4.1.1/build/release
+exec_prefix=${prefix}/bin
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+Name: libtesseract
+Description: An OCR Engine that was developed at HP Labs between 1985 and 1995... and now at Google.
+URL: https://github.com/tesseract-ocr/tesseract
+Version: 4.1.1
+Libs: -L${libdir} -ltesseract   
+Libs.private:
+Cflags: -I${includedir}
diff --git a/third_party/sqlite/sqlite3.c b/third_party/sqlite/sqlite3.c
index 0a678373..07564294 100644
--- a/third_party/sqlite/sqlite3.c
+++ b/third_party/sqlite/sqlite3.c
@@ -35158,10 +35158,6 @@ static int posixOpen(const char *zFile, int flags, int mode){
 static int openDirectory(const char*, int*);
 static int unixGetpagesize(void);
 
-#if !defined(_MSC_VER)
-asm (".symver fcntl64, fcntl@GLIBC_2.2.5");
-#endif
-
 /*
 ** Many system calls are accessed through pointer-to-functions so that
 ** they may be overridden at runtime to facilitate fault injection during