Python PIL | MedianFilter() and ModeFilter() method

Last Updated : 29 Jun, 2019
PIL is the Python Imaging Library which provides the python interpreter with image editing capabilities. The ImageFilter module contains definitions for a pre-defined set of filters, which can be used with the Image.filter() method. PIL.ImageFilter.MedianFilter() method creates a median filter. Picks the median pixel value in a window with the given size. 
Syntax: PIL.ImageFilter.MedianFilter(size=3)

Parameters:
size: The kernel size, in pixels.
Image used: Python3 1== 
# Importing Image and ImageFilter module from PIL package  
from PIL import Image, ImageFilter 
   
# creating a image object 
im1 = Image.open(r"C:\Users\sadow984\Desktop\download2.JPG") 
   
# applying the median filter 
im2 = im1.filter(ImageFilter.MedianFilter(size = 3)) 
   
im2.show()
Output: PIL.ImageFilter.ModeFilter() method creates a mode filter. Picks the most frequent pixel value in a box with the given size. Pixel values that occur only once or twice are ignored; if no pixel value occurs more than twice, the original pixel value is preserved. 
Syntax: PIL.ImageFilter.ModeFilter(size=3)

Parameters:
size: The kernel size, in pixels.
Python3 1== 
# Importing Image and ImageFilter module from PIL package  
from PIL import Image, ImageFilter 
   
# creating a image object 
im1 = Image.open(r"C:\Users\sadow984\Desktop\download2.JPG") 
   
# applying the mode filter 
im2 = im1.filter(ImageFilter.ModeFilter(size = 3)) 
   
im2.show()
Output:
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