图像去噪的内容，利用一个5X5模板对图像进行中值滤波，去除椒盐噪声。有PPT说明具体程序的步骤。-Denoising the content template using a 5X5 median filter on the image to remove the salt and pepper noise. There specify the procedures for PPT.

图形常见变换如维纳、中值滤波 小波变换，加噪，复原等处理要求图像为256色-common graphics transformation as Wiener, the median filter wavelet transform, increase noise, rehabilitation processing requirements for the 256 color images。包括其ppt描述