#include <types_c.h>

Public Attributes
int	type

int	step

int *	refcount

int	hdr_refcount

union {

uchar * ptr

short * s

int * i

float * fl

double * db

}	data

int	rows

int	cols

Detailed Description

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).

Deprecated:: CvMat is now obsolete; consider using Mat instead.

Member Data Documentation

◆ cols

int CvMat::cols

◆ [union]

union { ... } CvMat::data

◆ db

double* CvMat::db

◆ fl

float* CvMat::fl

◆ hdr_refcount

int CvMat::hdr_refcount

◆ i

int* CvMat::i

◆ ptr

uchar* CvMat::ptr

◆ refcount

int* CvMat::refcount

◆ rows

int CvMat::rows

◆ s

short* CvMat::s

◆ step

int CvMat::step

◆ type

int CvMat::type

The documentation for this struct was generated from the following file:

build/release/_deps/opencv-src/include/opencv4/opencv2/core/types_c.h

Public Attributes