getMSSIM 157 samples/cpp/tutorial_code/HighGUI/video-input-psnr-ssim/video-input-psnr-ssim.cpp Scalar getMSSIM( const Mat& i1, const Mat& i2) getMSSIM 249 samples/cpp/tutorial_code/gpu/gpu-basics-similarity/gpu-basics-similarity.cpp Scalar getMSSIM( const Mat& i1, const Mat& i2)