IMGRA: Image Processing With Graphs
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This is destined to be like imscript, but for functions defined on graphs.

Most of the code is independent of images, and works for functions defined on
the vertices of arbitrary graphs.  Image processing is a particular case when
the graph in question is a grid-graph.

The best documentation is the code on file imgra.py

You can open it as a notebook if you have jupytext.

Available as "pip install imgra"

Run "imgra.demo()" to see the Poisson editing demo.
