Open Source Computer Vision Library https://opencv.org/
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/*M///////////////////////////////////////////////////////////////////////////////////////
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#ifndef __OPENCV_IMGCODECS_HPP__
#define __OPENCV_IMGCODECS_HPP__
#include "opencv2/core.hpp"
//////////////////////////////// image codec ////////////////////////////////
namespace cv
{
enum { IMREAD_UNCHANGED = -1, // 8bit, color or not
IMREAD_GRAYSCALE = 0, // 8bit, gray
IMREAD_COLOR = 1, // ?, color
IMREAD_ANYDEPTH = 2, // any depth, ?
IMREAD_ANYCOLOR = 4 // ?, any color
};
enum { IMWRITE_JPEG_QUALITY = 1,
IMWRITE_JPEG_PROGRESSIVE = 2,
IMWRITE_JPEG_OPTIMIZE = 3,
IMWRITE_JPEG_RST_INTERVAL = 4,
IMWRITE_JPEG_LUMA_QUALITY = 5,
IMWRITE_JPEG_CHROMA_QUALITY = 6,
IMWRITE_PNG_COMPRESSION = 16,
IMWRITE_PNG_STRATEGY = 17,
IMWRITE_PNG_BILEVEL = 18,
IMWRITE_PXM_BINARY = 32,
IMWRITE_WEBP_QUALITY = 64
};
enum { IMWRITE_PNG_STRATEGY_DEFAULT = 0,
IMWRITE_PNG_STRATEGY_FILTERED = 1,
IMWRITE_PNG_STRATEGY_HUFFMAN_ONLY = 2,
IMWRITE_PNG_STRATEGY_RLE = 3,
IMWRITE_PNG_STRATEGY_FIXED = 4
};
CV_EXPORTS_W Mat imread( const String& filename, int flags = IMREAD_COLOR );
CV_EXPORTS_W bool imwrite( const String& filename, InputArray img,
const std::vector<int>& params = std::vector<int>());
CV_EXPORTS_W Mat imdecode( InputArray buf, int flags );
CV_EXPORTS Mat imdecode( InputArray buf, int flags, Mat* dst);
CV_EXPORTS_W bool imencode( const String& ext, InputArray img,
CV_OUT std::vector<uchar>& buf,
const std::vector<int>& params = std::vector<int>());
} // cv
#endif //__OPENCV_IMGCODECS_HPP__