Diffimg

Diffimg: Open-Source Image Comparison Tool

Compare two images and spot visual changes quickly with Diffimg, an open-source image comparison tool.

What is Diffimg?

Diffimg is an open-source command-line tool and library for visually comparing two images and highlighting the differences between them. It works by splitting the images into tiles, generating hashes for each tile, and then comparing the hashes to identify which parts of the images are different.

Some key features and capabilities of Diffimg include:

• Fast and efficient visual image comparisons
• Open-source (MIT license) implementation in Rust
• Command-line interface and library API
• Pixel-level accuracy in detecting differences
• Support for multiple image formats including PNG, JPEG, GIF, and BMP
• Output a diff image highlighting the differences between the input images
• Options to tweak the tile size, hash function, similarity threshold, and more
• Actively maintained project with regular updates

Diffimg is a lightweight but powerful tool for software developers, testers, and anyone needing to quickly compare images to spot visual regressions, changes, or differences. It can be easily integrated into continuous integration and testing workflows to automatically catch unintended UI changes.

Diffimg Features

Official Links