[Reprinted] cvGetSize and cvSize, cvgetsizecvsize

[Reprinted] cvGetSize and cvSize, cvgetsizecvsize

CvSize
Rectangle frame size, in pixels

Typedef struct CvSize {int width;/* rectangle width */int height;/* rectangle height */} CvSize;/* constructor */inline CvSize cvSize (int width, int height );

GetSize
Returns the size of a matrix or Image ROI.

CvSize cvGetSize (const CvArr * arr );
Arr
Array header.
The cvGetSize function returns the number of rows and columns of the image or matrix. If the image is used, the ROI is returned.

Note:

IplImage * src1 = cvCreateImage (cvSize (src-> width, src-> height), IPL_DEPTH_8U, 1 );

IplImage * dst = cvCreateImage (cvGetSize (src), 8, 1 );

The returned value of cvGetSize is the ROI. The returned value of CvSize varies depending on the parameters. If the image src sets the ROI, the two values (dst and src1) are the same.