COLOR_RGBA2GRAY   229 modules/cudaimgproc/test/test_color.cpp     cv::cuda::cvtColor(loadMat(src, useRoi), dst, cv::COLOR_RGBA2GRAY);
COLOR_RGBA2GRAY   232 modules/cudaimgproc/test/test_color.cpp     cv::cvtColor(src, dst_gold, cv::COLOR_RGBA2GRAY);
COLOR_RGBA2GRAY    93 modules/imgproc/perf/perf_cvt_color.cpp     COLOR_RGBA2BGR, COLOR_RGBA2BGR555, COLOR_RGBA2BGR565, COLOR_RGBA2GRAY,
COLOR_RGBA2GRAY   211 modules/imgproc/perf/perf_cvt_color.cpp     case COLOR_BGRA2GRAY: case COLOR_RGBA2GRAY:
COLOR_RGBA2GRAY  6756 modules/imgproc/src/color.cpp     case COLOR_RGB2GRAY: case COLOR_RGBA2GRAY: