calcSum           555 modules/cudaarithm/include/opencv2/cudaarithm.hpp CV_EXPORTS void calcSum(InputArray src, OutputArray dst, InputArray mask = noArray(), Stream& stream = Stream::Null());
calcSum           295 modules/cudaarithm/test/test_reductions.cpp     cv::cuda::calcSum(loadMat(src, useRoi), dst, cv::noArray(), stream);