cvFindCornerSubPix  551 modules/calib3d/src/calibinit.cpp         cvFindCornerSubPix( gray, out_corners, pattern_size.width*pattern_size.height,
cvFindCornerSubPix  186 modules/calib3d/test/test_cornerssubpix.cpp         cvFindCornerSubPix(&chessboard_image_header, (CvPoint2D32f*)&test_corners[0],
cvFindCornerSubPix  923 modules/imgproc/include/opencv2/imgproc/imgproc_c.h CVAPI(void)  cvFindCornerSubPix( const CvArr* image, CvPoint2D32f* corners,