OpenCV  3.4.8-dev
Open Source Computer Vision
Public Member Functions | Public Attributes | List of all members

#include <opencv2/core/types_c.h>

Public Member Functions

 CvMat ()
 
 CvMat (const cv::Mat &m)
 

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
 

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.

Constructor & Destructor Documentation

◆ CvMat() [1/2]

CvMat::CvMat ( )
inline

◆ CvMat() [2/2]

CvMat::CvMat ( const cv::Mat m)
inline

Member Data Documentation

◆ @87

union { ... }

◆ @89

union { ... }

◆ cols

int CvMat::cols

◆ data

union { ... } CvMat::data

◆ db

double* CvMat::db

◆ fl

float* CvMat::fl

◆ hdr_refcount

int CvMat::hdr_refcount

◆ height

int CvMat::height

◆ 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

◆ width

int CvMat::width

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