Research question: Would be possible to design a cryptographically secure steganography resistant to transformations such as printing and scanning (i.e., a provably secure steganographic algorithm where the encoded message can be decoded after printing the image and acquiring the image via scan or photograph)?
The paper this project is based on is the starting point for my thesis. I have found little discussion about this project (and have not found a posting to HN about it), even though I think it shows a very interesting approach to text-based steganography.