将一幅的灰度图像用平均滤波器进行模糊，分别再加上一定的高斯噪声和均匀噪声，然后，用设计的滤波器进行对上述两幅图像进行复原，并计算两幅图像复原前后的PSNR。-A gray-scale image with the average filter fuzzy, respectively, plus a Gaussian noise and uniform noise, and then, with filters designed to recover the two images, and cal