89 lines
2.5 KiB
C++
89 lines
2.5 KiB
C++
#include "imageencode.h"
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#include "memoryex.h"
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#include "opencv2/opencv.hpp"
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#include "FreeImagePlus.h"
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#include "StopWatch.h"
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BmpImageEncode::~BmpImageEncode()
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{
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}
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MemoryPtr BmpImageEncode::encode(cv::Mat &image)
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{
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fipImage fimage(FIT_BITMAP, image.cols, image.rows, image.type() == CV_8UC3 ? 24 : 8);
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int byteWidth = image.elemSize() * image.cols;
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for (int i = 0; i < fimage.getHeight(); i++)
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memcpy(fimage.getScanLine(i), image.ptr<uchar>(i), byteWidth);
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FipMemoryPtr mem(new FipMemory());
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auto &mio = mem->io();
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fimage.saveToMemory(FIF_PNG, mio);
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return mem;
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}
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JpegImageEncode::JpegImageEncode(bool bwimg, int dpi)
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{
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if (!bwimg)
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{
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compression_params.push_back(cv::IMWRITE_JPEG_QUALITY);
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compression_params.push_back(100);
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compression_params.push_back(cv::IMWRITE_RESOLUTION_X);
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compression_params.push_back(dpi);
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compression_params.push_back(cv::IMWRITE_RESOLUTION_Y);
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compression_params.push_back(dpi);
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}
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else{
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compression_params.push_back(CV_IMWRITE_PNG_STRATEGY);
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compression_params.push_back(cv::IMWRITE_PNG_STRATEGY_FIXED);
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}
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m_bwimg = bwimg;
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}
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JpegImageEncode::JpegImageEncode(const char* fmt, int dpi_h, int dpi_v, int jpeg_quality) : fmt_(fmt ? fmt : "")
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{
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if(fmt_ == "PNG")
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{
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compression_params.push_back(CV_IMWRITE_PNG_STRATEGY);
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compression_params.push_back(cv::IMWRITE_PNG_STRATEGY_FIXED);
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}
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else
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{
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compression_params.push_back(cv::IMWRITE_JPEG_QUALITY);
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compression_params.push_back(jpeg_quality);
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compression_params.push_back(cv::IMWRITE_RESOLUTION_X);
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compression_params.push_back(dpi_h);
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compression_params.push_back(cv::IMWRITE_RESOLUTION_Y);
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compression_params.push_back(dpi_v);
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}
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}
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JpegImageEncode::~JpegImageEncode()
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{
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}
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MemoryPtr JpegImageEncode::encode(cv::Mat &image)
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{
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VectorMemroyPtr mem = VectorMemroyPtr(new VectorMemroy());
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StopWatch sw;
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std::string type(m_bwimg ? ".png" : ".jpg");
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if(fmt_ == "PNG")
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type = ".png";
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else if(fmt_ == "TIFF")
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type = ".tiff";
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else
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type = ".jpg";
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cv::imencode(type.c_str(), image, mem->buf(), compression_params);
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printf("encode time = %0.2f \n", sw.elapsed_ms());
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return mem;
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}
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MemoryPtr buff2mem(void *data, int size)
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{
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auto mem = std::shared_ptr<VectorMemroy>(new VectorMemroy());
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mem->buf().resize(size);
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// memcpy(mem->buf().data(), data, size);
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return mem;
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} |