An implementation of a cellular automata I made up awhile ago. I'm told it's similar to "Brian's Brain". There are four states, red, green, blue, and blank.
CLI usage:
-s --savepic f Save a pic of each iteration to f, appended _xxx.png.
-i --iterate n Iterate n times, print the board at each iteration
-p --print Print the image to console during each iteration.
python3 rgblife.py input.png -s output -i 300
# Iterates 300 steps of the simulation, outputs output_000.png, output_001.png, etc.