A fun image-processing project marginally related to my learning theory research (github.com)

This reminds me of Trigrad ('Tringle Gradient Image Compression'), which compresses images by sampling points (at locations biased by the results of sobel edge detection); de-compression is performed by delaunay triangulation, then colouring the triangles using some scheme (the 'nearest neighbour' scheme, which coloured each triangle in a single color, is most similar to this).

https://ruarai.github.io/Trigrad/old.html

https://ruarai.github.io/Trigrad/

https://news.ycombinator.com/item?id=9828962