灰度图像的中值滤波方法，程序中对图像原图进行进入椒盐噪声，然后利用中值滤波方法去除，但边缘未作处理。-The the median value of filtering method of the gray-scale image, the program in the on the image full size image carried out to enter the salt and pepper noise, and then advantage of the median filt