RgbToB            503 samples/gpu/opticalflow_nvidia_api.cpp     ncvAssertReturnNcvStat (CopyData<RgbToB> (firstFrame, h_b));
RgbToB            511 samples/gpu/opticalflow_nvidia_api.cpp     ncvAssertReturnNcvStat (CopyData<RgbToB> (lastFrame, h_b));