HGScannerLib库增加获取图像数据地址和图像信息的接口,并完善文档
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@ -3,6 +3,8 @@ LIBRARY
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EXPORTS
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HGLib_LoadImage
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HGLib_GetImageData
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HGLib_GetImageInfo
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HGLib_SaveImage
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HGLib_ReleaseImage
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HGLib_InitDevice
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@ -30,6 +30,39 @@ HGLibImage HGAPI HGLib_LoadImage(const HGChar* filePath)
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return (HGLibImage)image;
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}
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HGByte* HGAPI HGLib_GetImageData(HGLibImage image)
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{
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if (NULL == image)
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{
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return NULL;
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}
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HGByte* data = NULL;
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HGBase_GetImageData((HGImage)image, &data);
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return data;
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}
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HGBool HGAPI HGLib_GetImageInfo(HGLibImage image, HGLibImageInfo* imageInfo)
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{
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if (NULL == image || NULL == imageInfo)
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{
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return HGFALSE;
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}
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HGImageInfo imgInfo;
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if (HGBASE_ERR_OK != HGBase_GetImageInfo((HGImage)image, &imgInfo))
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{
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return HGFALSE;
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}
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imageInfo->width = imgInfo.width;
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imageInfo->height = imgInfo.height;
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imageInfo->type = imgInfo.type;
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imageInfo->origin = imgInfo.origin;
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imageInfo->widthStep = imgInfo.widthStep;
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return HGTRUE;
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}
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HGBool HGAPI HGLib_SaveImage(HGLibImage image, const HGChar* savePath, const HGLibSaveImageParam* saveParam)
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{
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if (NULL == image || NULL == savePath)
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@ -6,6 +6,23 @@
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HG_DECLARE_HANDLE(HGLibImage);
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HG_DECLARE_HANDLE(HGLibDevice);
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/* 1位黑白图 */
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#define HGLIB_IMGTYPE_BINARY 1L
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/* 8位灰度图 */
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#define HGLIB_IMGTYPE_GRAY 2L
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/* 24位真彩色,B8G8R8格式 */
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#define HGLIB_IMGTYPE_BGR 3L
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/* 24位真彩色,R8G8B8格式 */
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#define HGLIB_IMGTYPE_RGB 4L
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/* 32位真彩色,带Alpha通道,B8G8R8A8格式 */
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#define HGLIB_IMGTYPE_BGRA 5L
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/* 32位真彩色,带Alpha通道,R8G8B8A8格式 */
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#define HGLIB_IMGTYPE_RGBA 6L
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/* 图像数据保存方式 */
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#define HGLIB_IMGORIGIN_TOP 1L
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#define HGLIB_IMGORIGIN_BOTTOM 2L
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/* TIFF压缩方式 */
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#define HGLIB_TIFFCOMPRESSION_NONE 1L
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#define HGLIB_TIFFCOMPRESSION_CCITTFAX4 2L
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@ -358,6 +375,16 @@ typedef struct
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HGBool ocr; /* 是否OCR,pdf和ofd格式有效 */
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}HGLibSaveImageParam;
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/* 图像信息 */
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typedef struct
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{
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HGUInt width; /* 宽(像素),列数 */
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HGUInt height; /* 高(像素),行数 */
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HGUInt type; /* 类型,参见HGLIB_IMGTYPE_* */
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HGUInt widthStep; /* 每行的字节数 */
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HGUInt origin; /* 数据排列方式,参见HGLIB_IMGORIGIN_* */
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}HGLibImageInfo;
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typedef struct
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{
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HGInt* value;
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@ -447,6 +474,12 @@ typedef void (HGAPI *HGLibDeviceScanImageFunc)(HGLibDevice device, HGLibImage im
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/* 加载图像 */
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HGEXPORT HGLibImage HGAPI HGLib_LoadImage(const HGChar *filePath);
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/* 获取图像数据 */
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HGEXPORT HGByte* HGAPI HGLib_GetImageData(HGLibImage image);
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/* 获取图像信息 */
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HGEXPORT HGBool HGAPI HGLib_GetImageInfo(HGLibImage image, HGLibImageInfo* imageInfo);
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/* 保存图像 */
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HGEXPORT HGBool HGAPI HGLib_SaveImage(HGLibImage image, const HGChar* savePath, const HGLibSaveImageParam* saveParam);
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