Compression Resistant Steganography

Warning

This is not cryptographically secure.

Usage

py encode.py <width> <height> <message> <output_image> [colour_size]

py decode.py <image_path>

Example

py encode.py 1584 396 "REDACTED" linkedin-banner.png 44

After compression, this may become:

py decode.py linkedin-banner.png
py decode.py linkedin-banner-with-compression.jpg

Both of these will output REDACTED despite the latter being lossy compressed.