project2nd        295 modules/core/include/opencv2/core/cuda/functional.hpp     template <typename T1, typename T2> struct project2nd : binary_function<T1, T2, T2>
project2nd        298 modules/cudev/include/opencv2/cudev/functional/functional.hpp template <typename T1, typename T2> struct project2nd : binary_function<T1, T2, T2>