google/brunsli: Practical JPEG Repacker (now part of JPEG XL)

栏目: IT技术 · 发布时间: 6年前

内容简介:Brunsli is a lossless JPEG repacking library.Brunsli allows for a 22% decrease in file size while allowing the original JPEG to be recovered byte-by-byte.

Introduction

Brunsli is a lossless JPEG repacking library.

Brunsli allows for a 22% decrease in file size while allowing the original JPEG to be recovered byte-by-byte.

google/brunsli: Practical JPEG Repacker (now part of JPEG XL)

VERY GOOD NEWS: Brunsli is on its way to become standardized. Brunsli has been specified as the lossless JPEG transport layer in the Committee Draft of JPEG XL Image Coding System and is ready to power faster and more economical transfer and storage of photographs.

We are committed making JPEG XL a first-class citizen of the open-source and closed-source worlds, and we will integrate it into image and networking related tools.

The currently planned/on-going integration work includes:

  • one-shot C API / dynamic library
  • WASM module
  • Node.js module
  • Java bindings
  • Python libraries support (OpenCV, imageio, PythonMagic, PIL, etc.)
  • Python bindings
  • Nginx transcoding module
  • Nginx serving module
  • Apache transcoding module
  • Apache serving module

Stay tuned!

Build instructions

Clone and prepare

Run the following commands to clone and prepare brunsli:

git clone --depth=1 https://github.com/google/brunsli.git
cd brunsli
git submodule update --init --recursive
mkdir bin
cd bin
cmake ..

Linux & macOS

On Linux and macOS, compile and install by running:

make -j
make -j install

Windows

On Windows, compile with Visual Studio:

msbuild brunsli.sln

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