https://github.com/whtsky/pixelmatch-py
https://pypi.org/project/pixelmatch/
https://playwright.dev/python/docs/screenshots
https://pytest-cookbook.com/toolbox/visual_regression/
https://www.youtube.com/watch?v=wMjsrsQK3hs
Given two images screenshot-1.jpg and screenshot-2.jpg, visual_regression.py will produce two images:
diff__pil_screenshot-1.jpg__v__screenshot-2.jpg_1288.pngshows highlights difference.diff_pixelmatch_screenshot-1.jpg__v__screenshot-2.jpg_7152.pngis an image just of the difference.
NB a random int is added at end of filename to avoid over-writing files.
visual_regrssion.py is customisable and outputs the following:
