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41
42#ifndef __OPENCV_IMGCODECS_H__
43#define __OPENCV_IMGCODECS_H__
44
45#include "opencv2/core/core_c.h"
46
47#ifdef __cplusplus
48extern "C" {
49#endif /* __cplusplus */
50
51/** @addtogroup imgcodecs_c
52  @{
53  */
54
55enum
56{
57/* 8bit, color or not */
58    CV_LOAD_IMAGE_UNCHANGED  =-1,
59/* 8bit, gray */
60    CV_LOAD_IMAGE_GRAYSCALE  =0,
61/* ?, color */
62    CV_LOAD_IMAGE_COLOR      =1,
63/* any depth, ? */
64    CV_LOAD_IMAGE_ANYDEPTH   =2,
65/* ?, any color */
66    CV_LOAD_IMAGE_ANYCOLOR   =4
67};
68
69/* load image from file
70  iscolor can be a combination of above flags where CV_LOAD_IMAGE_UNCHANGED
71  overrides the other flags
72  using CV_LOAD_IMAGE_ANYCOLOR alone is equivalent to CV_LOAD_IMAGE_UNCHANGED
73  unless CV_LOAD_IMAGE_ANYDEPTH is specified images are converted to 8bit
74*/
75CVAPI(IplImage*) cvLoadImage( const char* filename, int iscolor CV_DEFAULT(CV_LOAD_IMAGE_COLOR));
76CVAPI(CvMat*) cvLoadImageM( const char* filename, int iscolor CV_DEFAULT(CV_LOAD_IMAGE_COLOR));
77
78enum
79{
80    CV_IMWRITE_JPEG_QUALITY =1,
81    CV_IMWRITE_JPEG_PROGRESSIVE =2,
82    CV_IMWRITE_JPEG_OPTIMIZE =3,
83    CV_IMWRITE_JPEG_RST_INTERVAL =4,
84    CV_IMWRITE_JPEG_LUMA_QUALITY =5,
85    CV_IMWRITE_JPEG_CHROMA_QUALITY =6,
86    CV_IMWRITE_PNG_COMPRESSION =16,
87    CV_IMWRITE_PNG_STRATEGY =17,
88    CV_IMWRITE_PNG_BILEVEL =18,
89    CV_IMWRITE_PNG_STRATEGY_DEFAULT =0,
90    CV_IMWRITE_PNG_STRATEGY_FILTERED =1,
91    CV_IMWRITE_PNG_STRATEGY_HUFFMAN_ONLY =2,
92    CV_IMWRITE_PNG_STRATEGY_RLE =3,
93    CV_IMWRITE_PNG_STRATEGY_FIXED =4,
94    CV_IMWRITE_PXM_BINARY =32,
95    CV_IMWRITE_WEBP_QUALITY =64
96};
97
98/* save image to file */
99CVAPI(int) cvSaveImage( const char* filename, const CvArr* image,
100                        const int* params CV_DEFAULT(0) );
101
102/* decode image stored in the buffer */
103CVAPI(IplImage*) cvDecodeImage( const CvMat* buf, int iscolor CV_DEFAULT(CV_LOAD_IMAGE_COLOR));
104CVAPI(CvMat*) cvDecodeImageM( const CvMat* buf, int iscolor CV_DEFAULT(CV_LOAD_IMAGE_COLOR));
105
106/* encode image and store the result as a byte vector (single-row 8uC1 matrix) */
107CVAPI(CvMat*) cvEncodeImage( const char* ext, const CvArr* image,
108                             const int* params CV_DEFAULT(0) );
109
110enum
111{
112    CV_CVTIMG_FLIP      =1,
113    CV_CVTIMG_SWAP_RB   =2
114};
115
116/* utility function: convert one image to another with optional vertical flip */
117CVAPI(void) cvConvertImage( const CvArr* src, CvArr* dst, int flags CV_DEFAULT(0));
118
119CVAPI(int) cvHaveImageReader(const char* filename);
120CVAPI(int) cvHaveImageWriter(const char* filename);
121
122
123/****************************************************************************************\
124*                              Obsolete functions/synonyms                               *
125\****************************************************************************************/
126
127#define cvvLoadImage(name) cvLoadImage((name),1)
128#define cvvSaveImage cvSaveImage
129#define cvvConvertImage cvConvertImage
130
131/** @} imgcodecs_c */
132
133#ifdef __cplusplus
134}
135#endif
136
137#endif // __OPENCV_IMGCODECS_H__
138