PUSH_SLICE        524 modules/imgproc/src/approx.cpp             PUSH_SLICE(slice);
PUSH_SLICE        570 modules/imgproc/src/approx.cpp             PUSH_SLICE(right_slice);
PUSH_SLICE        571 modules/imgproc/src/approx.cpp             PUSH_SLICE(slice);
PUSH_SLICE        623 modules/imgproc/src/approx.cpp             PUSH_SLICE(right_slice);
PUSH_SLICE        624 modules/imgproc/src/approx.cpp             PUSH_SLICE(slice);