saturate_cast_func  539 modules/core/include/opencv2/core/cuda/functional.hpp     template <typename T, typename D> struct saturate_cast_func : unary_function<T, D>
saturate_cast_func  663 modules/cudev/include/opencv2/cudev/functional/functional.hpp template <typename T, typename D> struct saturate_cast_func : unary_function<T, D>