Searched refs:syy (Results 1 – 3 of 3) sorted by relevance
89 double syy = yym * iw - iwy * iwy; in FinalizeSSIM() local93 if (syy < 0.) in FinalizeSSIM()94 syy = 0.; in FinalizeSSIM()95 const double sxsy = sqrt(sxx * syy); in FinalizeSSIM()101 const double c = (2. * sxsy + C22) / (sxx + syy + C22); in FinalizeSSIM()
109 syy = sum(v * v for v in y)113 stderr2 = (n * syy - sy * sy -
714 const uint64_t syy = (uint64_t)stats->yym * N - ymym; in SSIMCalculation() local717 const uint64_t den_S = (sxx + syy + C2) >> 8; in SSIMCalculation()