A simple tool that generates stegged pictures that can be analysed by StegSolve.jar.
python .\steg.py --help
python .\steg.py -i 0.png -s test.7z --plane_order BGR
python .\steg.py -i 0.png -s test.7z --method column
python .\steg.py -i 0.png -s 1.png --qrcode --plane_order G