To run this code on debian, I had to install python2, python2 pip, python2 virtualenv, and the gimp-python plugin. The init code for the plugin dumps around 1GB of cache files into your ~/.cache directory, mostly in ~/.cache/pip/http , which then get built into a virtualenv in the git tree for the project.
Unfortunately there is no obvious license, so nobody can build on it directly, although some of the underlying codes have permissive licenses.
I tried out the super-resolution plugin on several test images; it didn't give good results. Motion deblurring had problems also. Both worked poorly on dealing with input compression artifacts, and on dealing with blurry low-resolution inputs. Both performed reasonably well on relatively clear high-resolution inputs (and where I already knew that blind deconvolution could easily recover the blur kernel), with no obvious artifacts in the output.