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图像质量评价指标MSEMSE:均方误差对于给定的大小为m×nm\times nm×n的干净图像III和噪声图像KKK,均方误差MSE的定义如下：MSE=1mn∑0m∑0m[I(i,j)−K(i,j)]2MSE = \frac{1}{mn}\sum^{m}_{0}\sum^{m}_{0}[I(i,j)-K(i,j)]^2MSE=mn1​0∑m​0∑m​[I(i,j)−K(i,j)]2PSNRPSNR (Peak Signal to Noise Ratio)峰值信噪比，其定义如下：PSNR=10l