C++ opencv 計算兩張映像的PSNR相似性

標籤：abs   [1]   ons   turn   sse   enc   channels   bsd   can   

double getPSNR(const Mat& I1, const Mat& I2){    Mat s1;    absdiff(I1, I2, s1);       // |I1 - I2|    s1.convertTo(s1, CV_32F);  // cannot make a square on 8 bits    s1 = s1.mul(s1);           // |I1 - I2|^2    Scalar s = sum(s1);         // sum elements per channel    double sse = s.val[0] + s.val[1] + s.val[2]; // sum channels    if( sse <= 1e-10) // for small values return zero        return 0;    else    {        double  mse =sse /(double)(I1.channels() * I1.total());        double psnr = 10.0*log10((255*255)/mse);        return psnr;    }}

C++ opencv 計算兩張映像的PSNR相似性