16. ImageFilter MedianFilter

See: https://pillow.readthedocs.io/en/stable/reference/ImageFilter.html#PIL.ImageFilter.MedianFilter

---

16.1. MedianFilter

Use the Image.filter(ImageFilter.MedianFilter(radius=3)) method to use the median pixel value in a pixel area given by the radius.

from PIL import Image, ImageFilter


with Image.open("test_images/river_valley.jpg") as im:
    new_im = im.filter(ImageFilter.MedianFilter(size=3))
    new_im.save("filters/MedianFilter.png")

Unfiltered, MinFilter, MedianFilter, ModeFilter and MaxFilter are compared below: