cvGetPerspectiveTransform  285 apps/createsamples/utility.cpp     CV_CALL( cvGetPerspectiveTransform( src_size, quad, c ) );
cvGetPerspectiveTransform  244 modules/imgproc/include/opencv2/imgproc/imgproc_c.h CVAPI(CvMat*) cvGetPerspectiveTransform( const CvPoint2D32f* src,