Transform among data types in OpenCV

• cv::Mat to IplImage:

1	IplImage pImg= IplImage(imgMat);

• cv::Mat to CvMat:

1	CvMat cvMat = imgMat;

•  CvMat to IplImage:

 

1	IplImage pImg= IplImage(imgMat);

2	IplImage* img = cvCreateImage( cvGetSize(mat), 8, 1);

3	cvGetImage(mat, img);

•  CvMat to cv::Mat:

1	cv::Mat m(mat, 1); //do not copy data when choose 0 in second variable.

•  IplImage to cv::Mat:

1	cv::Mat mat(img, 1); //do not copy data when choose 0 in second variable.

•  IplImage to CvMat:

1	Cvmat* mat = cvCreateMat( img->height, img->width, CV_64FC3 );

2	cvConvert( img, mat);

•  IplImage* to BYTE*

1	BYTE* data= img->imageData;

•  BYTE* to IplImage*

view source

1	IplImage* img= cvCreateImageHeader( cvSize(width, height), depth, channels );

2	cvSetData( img, data, width);