find4QuadCornerSubpix  646 modules/calib3d/include/opencv2/calib3d.hpp CV_EXPORTS bool find4QuadCornerSubpix( InputArray img, InputOutputArray corners, Size region_size );
find4QuadCornerSubpix  321 modules/calib3d/test/test_cameracalibration_artificial.cpp                 find4QuadCornerSubpix(gray, tmp, Size(5, 5));
find4QuadCornerSubpix  188 modules/calib3d/test/test_cornerssubpix.cpp         find4QuadCornerSubpix(chessboard_image, test_corners, Size(5, 5));