CV_INIT_3X3_DELTAS  481 modules/imgproc/include/opencv2/imgproc/types_c.h #define  CV_INIT_3X3_DELTAS( deltas, step, nch )            \
CV_INIT_3X3_DELTAS   44 modules/imgproc/src/contours.cpp #define  CV_INIT_3X3_DELTAS( deltas, step, nch )            \