The Wittgenstein Image Concordance
This archival image carries its catalogue caption in the relative ordering of neighboring RGB samples. The encoded caption identifies the proposition illustrated by the composition and is the archive's complete description of the record.
Catalogue renderer: catalogue_renderer.py and the lossless image master reproduce the caption.
python3 catalogue_renderer.py decode wittgenstein-puzzle.png --repeat 3
The renderer writes the complete ASCII catalogue caption to standard output.