CV_INIT_3X3_DELTAS  516 modules/imgproc/src/contours.cpp     CV_INIT_3X3_DELTAS( deltas, step, 1 );
CV_INIT_3X3_DELTAS  624 modules/imgproc/src/contours.cpp     CV_INIT_3X3_DELTAS( deltas, step, 1 );
CV_INIT_3X3_DELTAS  688 modules/imgproc/src/contours.cpp     CV_INIT_3X3_DELTAS( deltas, step, 1 );
CV_INIT_3X3_DELTAS  812 modules/imgproc/src/contours.cpp     CV_INIT_3X3_DELTAS( deltas, step, 1 );
CV_INIT_3X3_DELTAS  878 modules/imgproc/src/contours.cpp     CV_INIT_3X3_DELTAS( deltas, step, 1 );