thresh_binary_inv_func  567 modules/core/include/opencv2/core/cuda/functional.hpp     template <typename T> struct thresh_binary_inv_func : unary_function<T, T>
thresh_binary_inv_func  705 modules/cudev/include/opencv2/cudev/functional/functional.hpp __host__ __device__ ThreshBinaryInvFunc<T> thresh_binary_inv_func(T thresh, T maxVal)