The REpsych toolset, a proof-of-concept by Christopher Domas (@xoreaxeaxeax), generates images through a program's control flow graph (CFG). It works reliably with IDA Pro and semi-reliably with other CFG viewers like Hopper, Bin Navi, and radare2. The project has no specific point other than to show it can be done, with possible non-serious applications outlined in the DEF CON presentation.

Usage: Save a 24 BPP bitmap in the gfx/ folder, run "make image" (without extension), and two programs (repsych_v1, repsych_v2) are created. Tips: Use small images (not larger than 100x100), increase node limits in CFG viewers, and for text images convert to 2 BPP black and white first. The technique is detailed in the DEF CON slides.