Digital image authentication based on turbo codes 1

Abstract

Image ownership authentication is an important part of copyright protection, and digital watermark can be used to implement this task. In this paper, we propose a new image authentication plan concentrating on its security performance. Secret information used as the copyright owner's signature is first turbo coded, encrypted, scaled and then processed in wavelet domain. The original image is also needed in signature extraction. Simulation results are finally given to draw our conclusions. © Springer-Verlag 2004.