RGB_to_GRAY      1938 modules/cudaimgproc/src/color.cpp         RGB_to_GRAY,            // CV_RGB2GRAY    =7
RGB_to_GRAY        75 modules/cudaimgproc/src/cvt_color_internal.h     OPENCV_CUDA_DECLARE_CVTCOLOR_ALL(RGB_to_GRAY)
RGB_to_GRAY        75 modules/cudev/include/opencv2/cudev/expr/color.hpp CV_CUDEV_EXPR_CVTCOLOR_INST(RGB_to_GRAY)
RGB_to_GRAY        80 modules/cudev/include/opencv2/cudev/functional/color_cvt.hpp CV_CUDEV_RGB2GRAY_INST(RGB_to_GRAY, 3, 2)