EXPECT_MAT_N_DIFF  188 modules/imgproc/test/ocl/test_histogram.cpp             EXPECT_MAT_N_DIFF(dst1, udst1, nDiffs);
EXPECT_MAT_N_DIFF  212 modules/imgproc/test/ocl/test_histogram.cpp         EXPECT_MAT_N_DIFF(dst_roi, udst_roi, nDiffs);
EXPECT_MAT_N_DIFF  110 modules/imgproc/test/ocl/test_warp.cpp             EXPECT_MAT_N_DIFF(dst_roi, udst_roi, cvRound(dst_roi.total()*threshold));