Information Hiding Codes and Their Applications to Images and Audio
M. Kıvanç Mıhçak · 2002
We investigate the problem of information hiding for multimedia objects (images, audio, and video). First, we provide an information-theoretic framework where information hiding is modeled as a communication problem with side information at the encoder, and at the same time as a game-theoretic problem between the attacker and the information hider. We derive the maximum rate of information that can reliably be transmitted for parallel Gaussian sources under the squared error distortion metric. We also find optimal covert and attack channel distributions. Then, we apply these results to image sources under various parallel Gaussian models and quantify the corresponding capacities.