Spread-Spectrum Watermarking Model Using a Parity-Check Code for Simultaneous Restoration of Message and Image
Satoshi Kawaguchi · Journal of the Physical Society of Japan · 2021
In this study, we propose a spread-spectrum watermarking model using a parity-check code for simultaneous restorations of the message and image. In our model, in addition to the stego image, the parity-ckeck code is sent to the receiver as supplementary information. To restore both the message and image simultaneously, we assume that the parity-check code comprises both the message and image, one selected from the message and the other from the image. We apply the replica method to obtain equations of self-consistent order parameters, and compare the theoretical results with the Monte Carlo simulations.