Python bindings for Google's Guetzli, a JPEG encoder that optimises JPEG compression

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  • License: Apache-2.0
  • Author: Wanadev
  • Maintainer: Fabien LOISON, Alexis BREUST
  • Tags image, jpeg, optimize, guetzli
  • Provides-Extra: pil, dev

Project description

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PyGuetzli is a Python binding for Google’s Guetzli library.

Description of Guetzli from official’s repo:

Guetzli is a JPEG encoder that aims for excellent compression density at high visual quality. Guetzli-generated images are typically 20-30% smaller than images of equivalent quality generated by libjpeg. Guetzli generates only sequential (nonprogressive) JPEGs due to faster decompression speeds they offer.

Documentation

More topics at https://wanadev.github.io/pyguetzli/

Usage Example

import pyguetzli

input_jpeg = open("./test/image.jpg", "rb").read()
optimized_jpeg = pyguetzli.process_jpeg_bytes(input_jpeg)

output = open("./optimized.jpg", "wb")
output.write(optimized_jpeg)

Changelog

  • [NEXT] (changes on master but not released yet):

    • Nothing yet ;)

  • v1.0.17:

    • misc(deps): Only pin setuptools version on required platforms (@flozz)

  • v1.0.16:

    • misc: Added Python 3.13 support (@flozz)

    • misc!: Removed Python 3.8 support (@flozz)

  • v1.0.15:

    • misc: Added Python 3.12 support (@flozz)

    • misc!: Removed Python 3.7 support (@flozz)

  • v1.0.14:

    • Guetzli: Apply a better patch to fix the crash caused by a bad access to a vector revealed when compiled with “-D_GLIBCXX_ASSERTIONS” (David Odin)

  • v1.0.13:

    • Added Python 3.11 support

  • v1.0.12:

    • Guetzli: Fixed a crash caused by a bad access to a vector revealed when compiled with “-D_GLIBCXX_ASSERTIONS” (David Odin)

  • v1.0.11:

    • arm64 and universal2 wheels for macOS

    • x86 and x68_64 wheels for musl-based Linux distro (Alpine,…)

    • win32 wheels for Windows (x86_64 were already available)

  • v1.0.10: Python 3.10 support and wheels

  • v1.0.9: Provides prebuilt wheel packages

  • v1.0.8: Updates Guetzli and python dependencies

  • v1.0.7: Fixes unicode issue when installing pyguetzli (#4)

  • v1.0.6: Fixes a typo in compilator options on unix

  • v1.0.5: Adds optimization flags when compiling Guetzli

  • v1.0.4: MS Windows support

  • v1.0.3: Updates Guetzli library

  • v1.0.2: PIL Images: fixes crash with non RGB/RGBA images (grayscale, indexed,…)

  • v1.0.1: Adds --std=c++11 flag when building Guetzli

  • v1.0.0:

    • New and simpler API

    • Built-in function to deal with PIL / Pillow Images

    • Documentation (Sphinx)

    • Guetzli update

  • v0.9.0: Initial release

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