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31 lines
1.2 KiB
Markdown
31 lines
1.2 KiB
Markdown
<p align="center">
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<img title="SQP" alt="SQP Logo" width="500px" src="https://github.com/user-attachments/assets/85abfb2f-6240-42d7-bdef-2103d6f83765">
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</p>
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**SQP** (**SQ**uishy **P**icture Format) is an image format designed
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for ease of implementation and learning about compression and image formats
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while attaining a relatively good compression ratio. The general idea is to
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make something "good enough" while being simple, and also as a learning tool
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to learn about compression (mostly on my part). If you need an image format
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for general use, this is probably **not it**, go check out JPEG XL or AVIF.
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This reference implementation fits in around 1000 lines of relatively
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simple Rust, while maintaining decent compression and decompression
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speeds.
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## Features
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- Lossless and lossy compression schemes
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- Support for various color formats (RGBA, Grayscale, etc.)
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- Decent compression ratios, the lossless compression can often beat PNG
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especially on images with transparency
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- Relatively simple
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- Squishy! 🍡
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## Future Features
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- Animated images
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- Frame difference encoding
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- Loop points
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- Arbitrary frame timings
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- Decoder-based frame interpolation
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- Floating point color
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- Metadata?
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