https://github.com/10maurycy10/libqoi

A basic QOI (https://qoiformat.org/) decoder/encoder
https://github.com/10maurycy10/libqoi

Last synced: 2 months ago
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A basic QOI (https://qoiformat.org/) decoder/encoder

• Host: GitHub
• URL: https://github.com/10maurycy10/libqoi
• Owner: 10maurycy10
• License: lgpl-2.1
• Created: 2022-05-03T18:58:08.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2023-01-23T22:14:30.000Z (almost 2 years ago)
• Last Synced: 2024-10-29T07:49:58.418Z (3 months ago)
• Language: Rust
• Size: 545 KB
• Stars: 6
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# libqoi

[![crates.io badge](https://img.shields.io/crates/v/libqoi)](https://crates.io/crates/libqoi) [![docs.rs badge](https://img.shields.io/docsrs/libqoi)](https://docs.rs/libqoi/latest/libqoi/)

A basic rust [QOI](https://qoiformat.org/) decoder/encoder.

## Why QOI

QOI is a lossless image format with a [one page specification](https://qoiformat.org/qoi-specification.pdf). It can achieve better compression than PNG, while being much faster than PNG.

The best possible time complexity is O(n) where n is the amount of pixels, and space is O(1). This encoder has O(n) time and O(n) space complexity

## Demo

This cat photo from https://commons.wikimedia.org/wiki/File:Cat_poster_1.jpg (5935 × 3898) is 29,291,338 bytes as PNG but 27,960,953 as QOI.

QOI also takes >.2 seconds to compress and decompress (on my machine), but PNG takes one second just to compress.