Searched refs:sxy (Results 1 – 8 of 8) sorted by relevance
40 const int64_t sxy = (int64_t)stats->xym * N - xmym; // can be negative in SSIMCalculation() local44 const uint64_t num_S = (2 * (uint64_t)(sxy < 0 ? 0 : sxy) + C2) >> 8; in SSIMCalculation()
83 (sxy (- (sum (map * x y)) (* n xbar ybar))))84 (let ((slope (/ sxy sxx)))88 (/ (sq sxy) (* sxx syy))))))))
885 sxy = fsum((xi - xbar) * (yi - ybar) for xi, yi in zip(x, y))886 return sxy / (n - 1)913 sxy = fsum((xi - xbar) * (yi - ybar) for xi, yi in zip(x, y))917 return sxy / sqrt(sxx * syy)957 sxy = fsum((xi - xbar) * (yi - ybar) for xi, yi in zip(x, y))960 slope = sxy / sxx # equivalent to: covariance(x, y) / variance(x)
119 const int64_t sxy = (int64_t)stats->xym * N - xmym; // can be negative in SSIMCalculation() local123 const uint64_t num_S = (2 * (uint64_t)(sxy < 0 ? 0 : sxy) + C2) >> 8; in SSIMCalculation()
4323 GstClockTimeDiff sxx, sxy, syy; in gst_calculate_linear_regression() local4338 xbar = ybar = sxx = syy = sxy = 0; in gst_calculate_linear_regression()4422 sxx = syy = sxy = 0; in gst_calculate_linear_regression()4469 if (G_UNLIKELY (tmp > 0 && sxy > 0 && (G_MAXINT64 - sxy <= tmp))) { in gst_calculate_linear_regression()4472 sxy /= 4; in gst_calculate_linear_regression()4474 } while (G_MAXINT64 - sxy <= tmp); in gst_calculate_linear_regression()4476 } else if (G_UNLIKELY (tmp < 0 && sxy < 0 && (G_MININT64 - sxy >= tmp))) { in gst_calculate_linear_regression()4479 sxy /= 4; in gst_calculate_linear_regression()4481 } while (G_MININT64 - sxy >= tmp); in gst_calculate_linear_regression()4484 sxy += tmp; in gst_calculate_linear_regression()[all …]
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