This is a proof of concept prototype for the Universalimages XMP standard.

Install Boost, Boost.python and exiv2:

brew install boost boost-python    
brew install exiv2 pyexiv2

This installs pyexiv2 in the homebrew python folder. If you already have a virtualenv, you have to recreate it.

For Ubuntu just install pyexiv2:

apt-get install python-pyexiv2

The filter requires at least version 6 of Thumbor.

pip install -r 'thumbor >= 6.0.0b3'
pip install git+http://github.com/sbaechler/thumbor-universalimages.git

Add universalimages.filters.rmd to thumbor.conf.FILTERS.

Refer to the Thumbor documentation.

To enable responsive metadata processing add the rmd filter like so: /filters:rmd()/.