Unfortunately alpha-channel steganography is one of the simplest and most trivially detected of image steganography algorithms, making it not very useful. For a

Unfortunately alpha-channel steganography is one of the simplest and most trivially detected of image steganography algorithms, making it not very useful. For an example of what goes into a serious and secure steganographic algorithm see perturbed quantization: http://dde.binghamton.edu/download/pq/Fri05pq.pdf http://dde.binghamton.edu/download/pq/Fri05pq.pdf http://dde.binghamton.edu/download/pq/ http://dde.binghamton.edu/download/pq/