cvInitLineIterator 397 modules/imgcodecs/test/test_drawing.cpp int count = cvInitLineIterator( &img, cvPoint(0,300), cvPoint(1000, 300), &it ); cvInitLineIterator 1088 modules/imgproc/include/opencv2/imgproc/imgproc_c.h CVAPI(int) cvInitLineIterator( const CvArr* image, CvPoint pt1, CvPoint pt2,