Min/Max filter，最大最小滤波器，说明看英文，只是国外的人写的代码， -Descr iption The filter computes the minima and/or maxima of an array over sliding window with a given size. Multidimensional array is fully supported: running filter in 1D, 2D filter for image process

【谷速软件】matlab源码-巴特沃斯滤波图像平滑-[Valley] matlab source software speed- Butterworth filter image smoothing