CatWatermark
Usage
# encode
python3 encode.py original_image watermark_text output_image
# decode
python3 decode.py original_image watermarked_image output_image arnold_dx arnold_dy arnold_rd
# encode
python3 encode.py original_image watermark_text output_image
# decode
python3 decode.py original_image watermarked_image output_image arnold_dx arnold_dy arnold_rd