DIST_MASK_PRECISE   34 modules/imgproc/perf/perf_distanceTransform.cpp CV_ENUM(MaskSize, DIST_MASK_3, DIST_MASK_5, DIST_MASK_PRECISE)
DIST_MASK_PRECISE  154 samples/cpp/distrans.cpp             maskSize0 = DIST_MASK_PRECISE;
DIST_MASK_PRECISE  176 samples/cpp/distrans.cpp                 maskSize0 = DIST_MASK_PRECISE;
DIST_MASK_PRECISE  177 samples/cpp/distrans.cpp             else if( maskSize0 == DIST_MASK_PRECISE )