Introduction - If you have any usage issues, please Google them yourself
Median filterThis filter function is used to filter the average value of the image,The average of all pixels in a pixel and its neighborhood is assigned to the corresponding pixels in the output image for smoothing. 2. The parameter impath is the image's path 3. Parameter A is a filtering template, A is an M * N matrix, note that M and N are boh odd numbers and not more than 11. The parameter output is the mean filtered image matrix. This function uses the algorithm: first expand the original image matrix by 2m rows and 2n columns, and make the expansion bit complement 0