图像去噪程序，分为高斯噪声和椒盐噪声，分别用均值滤波、中值滤波、一次维纳滤波、二次维纳滤波复原，效果很好！-Denoising procedures, divided Gaussian noise and salt and pepper noise, respectively, with mean filter, median filter, a Wiener filter, secondary Wiener filter restoration, very good!