CHAIN_APPROX_NONE  198 modules/features2d/src/blobdetector.cpp     findContours(tmpBinaryImage, contours, RETR_LIST, CHAIN_APPROX_NONE);
CHAIN_APPROX_NONE 1401 modules/imgproc/test/test_convhull.cpp     findContours(image, contours,  RETR_EXTERNAL,  CHAIN_APPROX_NONE);
CHAIN_APPROX_NONE   87 modules/shape/test/test_shape.cpp         findContours(currentQuery, _contoursQuery, RETR_LIST, CHAIN_APPROX_NONE);
CHAIN_APPROX_NONE   68 samples/cpp/fitellipse.cpp     findContours(bimage, contours, RETR_LIST, CHAIN_APPROX_NONE);
CHAIN_APPROX_NONE   29 samples/cpp/shape_example.cpp     findContours(currentQuery, _contoursQuery, RETR_LIST, CHAIN_APPROX_NONE);