C++ (Cpp) mean_square_error示例

示例#1

文件： noise.c 项目： BallaMatt03/dev

/* ------------------------------------------------------------ */
float32 psnr(uint8 **X, int i0, int i1, int j0, int j1, uint8 **Y)
/* ------------------------------------------------------------ */
{
    float32 mse;
    float32 psnr;
    
    mse = mean_square_error(X, i0, i1, j0, j1, Y);
    if(mse != 0.0f) {
        psnr = 10 * (log10(255*255) / log10(mse));
    } else {
        psnr = 0.0;
    }
    return psnr;
}

示例#2

文件： imgerr.c 项目： npd/imscript

static double imgerr(char *m, float *x, float *y, int n)
{
	double r;
	if (false);
	else if (0 == strcmp(m, "MSE"))   r = mean_square_error(x, y, n);
	else if (0 == strcmp(m, "RMSE"))  r = root_mean_square_error(x, y, n);
	else if (0 == strcmp(m, "MAE"))   r = mean_absolute_error(x, y, n);
	else if (0 == strcmp(m, "UIQI"))  r = uiqi(x, y, n);
	else if (0 == strcmp(m, "SSIM"))  r = ssim(x, y, n);
	else if (0 == strcmp(m, "PSNR"))  r = psnr(x, y, n);
	else if (0 == strcmp(m, "NCC"))   r = ncc(x, y, n);
	else if (string_is_lp(m, &r))     r = ell_pee_distance(x, y, n, r);
	else fail("unrecognized metric \"%s\"", m);
	return r;
}