OpenCV
3.4.20
Open Source Computer Vision
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#include <opencv2/core/types_c.h>
Public Attributes | |
union { | |
int height | |
int rows | |
}; | |
union { | |
int cols | |
int width | |
}; | |
union { | |
double * db | |
float * fl | |
int * i | |
uchar * ptr | |
short * s | |
} | data |
int | hdr_refcount |
int * | refcount |
int | step |
int | type |
Matrix elements are stored row by row. Element (i, j) (i - 0-based row index, j - 0-based column index) of a matrix can be retrieved or modified using CV_MAT_ELEM macro:
uchar pixval = CV_MAT_ELEM(grayimg, uchar, i, j) CV_MAT_ELEM(cameraMatrix, float, 0, 2) = image.width*0.5f;
To access multiple-channel matrices, you can use CV_MAT_ELEM(matrix, type, i, j*nchannels + channel_idx).
union { ... } |
union { ... } |
int CvMat::cols |
union { ... } CvMat::data |
double* CvMat::db |
float* CvMat::fl |
int CvMat::hdr_refcount |
int CvMat::height |
int* CvMat::i |
uchar* CvMat::ptr |
int* CvMat::refcount |
int CvMat::rows |
short* CvMat::s |
int CvMat::step |
int CvMat::type |
int CvMat::width |