Image colour adjustment recipes in Pillow
Martin McBride, 2020-10-18
Tags image processing recipes
These ImageOps functions provide various colour corrections.
autocontrast function maximises the image contrast, by remapping the lightness value of each pixel so that that darkest pixel has a value 0 and the lightest has a value 255.
equalise function equalises the greyscale histogram, trying to ensure that the light, mid and dark areas of the image make full use of the available range of lightness values.