Pixel Perfect is a fun, small little utility for encrypting images by shuffling the pixels around "seemingly" at random. Please note that this is just for fun, and not secure even in the slightest. I think it shows off a cool concept though.
python3 main.py --file myfile.png --operation encrypt
python3 main.py --file myfile_encrypted.png --operation decrypt
You have to use a lossless format in order for this to work. So basically no jpegs.