[pzone]

Depends on your use case, but the more common paradigm for reusable and procedural image compositing is the idea of a node graph. Prople prefer to work this way for the interactive visualization. This kind of functionality is found in Natron and Blender (free software) as well as Nuke, Fusion and Houdini (paid.) All of these programs can be scripted with Python.

If you're looking for something to run headless on a server, Imagemagick is a good choice.

[masonicb00m]

Thanks. I didn’t realize Blender did bode graphs—I’ll have to check that out.

I’ve been using ImageMagick but the CLI invocations are pretty awkward. Maybe I’m just looking for a DSL on top of ImageMagick