|
Abstract : |
Inspired by a recently proposed constructive framework for the distributed source coding problem [10], we propose a powerful constructive approach to the watermarking problem, emphasizing the dual roles of "source codes" and "channel codes. " In our framework, we explore various source and channel codes to achieve watermarks that are robust to attackers in terms of maximizing the distortion between the corrupted coded-source signal and the original signal while holding the distortion between the codedsource signal and the original signal constant. Simulations show that performance gains are accredited to a careful choice of source and channel codes. 1., |