Image operations recipes in Pillow


Martin McBride, 2020-10-11
Tags image processing, recipes, solarize, posterize, colorize, autocontrast
Categories pillow
In section Python libraries



The ImageOps module contains a collection of functions that perform various image operations in a single call.

Operations fall into several groups:

This module is described as "experimental" in the Pillow documentation. They are actually pretty reliable, although they should only be used with 8 bit RGB and greyscale images. There are other ways of performing these operations using standard functions, but that would usually require multiple function calls, so this module is worth knowing about.

Test image

We will use an image called carousel-small.jpg to illustrate these functions:

If you found this article useful, you might be interested in the book Computer Graphics in Python, or other books, by the same author.

<<Prev

Tag cloud

2d arrays abstract data type alignment and array arrays bezier curve built-in function close closure colour comparison operator comprehension context conversion data types design pattern device space dictionary duck typing efficiency encryption enumerate filter font font style for loop function function composition function plot functools generator gif gradient greyscale higher order function html image processing imagesurface immutable object index inner function input installing iter iterator itertools lambda function len linspace list list comprehension logical operator lru_cache mandelbrot map monad mutability named parameter numeric python numpy object open operator optional parameter or partial application path positional parameter print pure function radial gradient range recipes recursion reduce rgb rotation scaling sequence slice slicing sound spirograph str stream string subpath symmetric encryption template text text metrics transform translation transparency tuple unpacking user space vectorisation webserver website while loop zip

Copyright (c) Axlesoft Ltd 2020