中值-均值滤波中值滤波方法是，对待处理的当前像素，选择一个模板，该模板为其邻近的若干个像素组成，对模板的像素由小到大进行排序，再用模板的中值来替代原像素的值的方法。-The median filtering method is that the current pixel treated,　a template, a plurality of pixels of the template for the adjacent pixels by the template, sorting, and template to replace the median value of the original pixel method.