In this tutorial, you will learn how to build a Python screenshot comparison tool to detect visual changes in web applications automatically.
Screenshot comparison is widely used in visual regression testing to identify UI differences such as layout shifts, missing elements, style changes, or rendering issues that traditional functional tests may not detect.
In this video, we demonstrate how to compare screenshots using Python, Pillow, and pytest to automate UI validation.
This technique is extremely useful for automation engineers, QA testers, and developers working with modern automation frameworks.
