Since you are in ML you are likely familiar with Python, and you can also write Python scripts for Gimp.
To call Gimp in batch mode:
https://stackoverflow.com/questions/444 ... 0#44435560Some information:
https://www.gimp-forum.net/Thread-Debug ... in-WindowsSome samples (there are "GUI scripts", not batch scripts, but they show you how you can use the API:
http://sourceforge.net/projects/gimp-to ... s/scripts/The Gimp Python doc:
http://www.gimp.org/docs/python/index.html For individual calls, Fileters>Python-fu>Console>Browse, and use the search bar.