ODiff – native image comparison tool

ODiff is a fast native image comparison tool. It compares the visual difference between 2 images in milliseconds. ODiff is designed specifically to handle significantly similar images like screenshots, photos, AI-generated images and many more.

ODiff is designed to be portable, fast, and memory efficient.

This is free and open source software.

Features include:

• Cross-format comparison – Yes .jpg vs .png comparison without any problems.
• Support for .png, .jpeg, .jpg, .webp, and .tiff.
• Supports comparison of images with different layouts.
• Anti-aliasing detection.
• Ignoring regions.
• Using YIQ NTSC transmission algorithm to determine visual difference.
• SIMD optimized working for SSE2, AVX2, AVX512, and NEON.
• Controlled memory footprint.
• 100% test coverage and backward compatibility.

Website: github.com/dmtrKovalenko/odiff
Support:
Developer: Dmitriy Kovalenko
License: MIT License

ODiff is written in Zig. Learn Zig with our recommended free tutorials.

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