histogram 57 modules/cudev/include/opencv2/cudev/grid/detail/histogram.hpp __global__ void histogram(const SrcPtr src, ResType* hist, const MaskPtr mask, const int rows, const int cols) histogram 94 modules/cudev/include/opencv2/cudev/grid/detail/histogram.hpp __host__ void histogram(const SrcPtr& src, ResType* hist, const MaskPtr& mask, int rows, int cols, cudaStream_t stream)