说明：  本实验要求编写一个中值滤波的程序，并对产生的椒盐噪声的图像进行中值滤波处理。中值滤波是基于统计学的一种非线性滤波方法。我们还需要知道一个按大小排列的数组中间位置上的数据称为是中值。通过修改在实验project03-04的程序实现3*3中值滤波。
(Prepared in this experiment, a median filtering process, and salt and pepper noise generated by the image processing median filter. Median filter is based on a statistical non-linear filtering method. We also need to know the size of an order by the middle of the array data is referred to as value. By modifying the project03-04 in the experimental procedures for the realization of 3* 3 median filter.)