RGBA_to_GRAY     1942 modules/cudaimgproc/src/color.cpp         RGBA_to_GRAY,           // CV_RGBA2GRAY   =11
RGBA_to_GRAY       77 modules/cudaimgproc/src/cvt_color_internal.h     OPENCV_CUDA_DECLARE_CVTCOLOR_ALL(RGBA_to_GRAY)
RGBA_to_GRAY       77 modules/cudev/include/opencv2/cudev/expr/color.hpp CV_CUDEV_EXPR_CVTCOLOR_INST(RGBA_to_GRAY)
RGBA_to_GRAY       82 modules/cudev/include/opencv2/cudev/functional/color_cvt.hpp CV_CUDEV_RGB2GRAY_INST(RGBA_to_GRAY, 4, 2)