An Algorithm for Abstraction 1

To detect abstraction within a given document - e.g. letters - follow these steps:

- dissect document into tiles of same size width x height

- stack pieces

- calculate for every pixel-position (i,j) the information content given by this pixel via shannon-definition

- calculate average over all pixel-positions

- reiterate for different tile-sizes

- the tile size with the minimal average per-pixel-information (PPI) is the tile-size (4) which reveals the underlying alphabet

Code: