This module introduces reading and writing support for JPEG XL directly from Python 3.

JXLPy is based on JPEG XL implementation in imagecodecs but doesn't it require Numpy and any external dependencies besides Cython and libjxl.

It also provides support for Pillow via plugin.

This project is still in alpha stages and needs testing. It may contain bugs!

$ pip install jxlpy

• Make sure you are using Python 3.x and pip for that version

• Build and install libjxl according to instructions here

• Install patchelf and auditwheel

  $ sudo apt-get install patchelf
  $ pip install auditwheel

• For Pillow plugin, make sure that Pillow is installed (optional)

  $ pip install ---upgrade pillow

• Clone this repository

  $ git clone https://github.com/olokelo/jxlpy
  $ cd jxlpy

• Build wheels

  $ pip wheel .

• Use auditwheel to put necessary libraries into your wheel

  $ export LD_LIBRARY_PATH=/usr/local/lib
  $ python -m auditwheel repair --plat linux_x86_64 jxlpy-*.whl

• Install newly created wheel

  $ cd wheelhouse
  $ pip install jxlpy-*.whl

• Now you should be good to go :)

  You can run examples to check if everything works correctly

Installation steps were tested on Ubuntu 20.04