一个简单的Matlab图像处理函数，对图像进行中值滤波,和均值滤波，但是边缘处是没有做处理的，还有，滤波时，滤波窗口是矩形的，边长可以修改。-A simple program to complement the middle filter and the mean filter.cautions:the eadges of the picture is unchanged. Tht window is rectangular and the size of it is changable.