Good read. Feels like Lena was among inspirations.
https://qntm.org/mmacevedo, for those unfamiliar, not the namesake of that story from digital graphics.
And for the digital graphics people, consider using a modern variant instead: https://mortenhannemose.github.io/lena/
Discussed here a few weeks ago: https://news.ycombinator.com/item?id=46999224