This connection to the G'MIC imaging processing framework adds a ton of processing options to the Sequence Editor.
G'MIC is a sophisticated open-source framework for image processing. It provides several different user interfaces to convert/manipulate/filter/visualize image assets with over 460 different effects. Among these is a command-line interface, the popular G'MIC Plugin for GIMP, as well as a browser based online service ( http://gmic.eu/ ).
Blender-2-G'MIC is a Python script that allows people to access a range of G'MIC image filters from the Blender Video Sequence Editor. Many of the "Artistic" filters are well-suited to enhancing image sequences. "Film Emulation" settings also offer the ability to create a wide range of special film looks. The current B2G script is an alpha release, open to feedback and further development.