Optical Illusions by Akiyoshi Kitaoka, Professor, Department of Psychology, Ritsumeikan University, Kyoto, Japan
http://www.ritsumei.ac.jp/~akitaoka/index-e.html
https://twitter.com/AkiyoshiKitaoka/
These are reconstructions based on images published by Professor Kitaoka in his books and on his website. The goal is to eventually reconstruct most of the full-page illustrations from the 2002 book "Trick Eyes" as well as a number of notable images from Kitaoka's website.
All of these images are programmed in the Python dialect of Processing.