Effect of channel coding on the performance of spatial watermarking for copyright protection

被引：5
作者：
Rughooputh, HCS [1 ]
Bangaleea, R [1 ]
机构：
[1] Univ Mauritius, Reduit, Mauritius
来源：
2002 IEEE AFRICON, VOLS 1 AND 2: ELECTROTECHNOLOGICAL SERVICES FOR AFRICA | 2002年
关键词：
D O I：
10.1109/AFRCON.2002.1146824
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we present a spatial-domain-watermarking scheme for data hiding and copyright protection of still images using the attack characterization approach and demonstrate the effect that the application of channel coding has on the performance of the watermark detection. The scheme uses techniques such as direct sequence spread spectrum modulation, perceptual analysis and diversity to maximize the robustness of the watermark while keeping it imperceptible. Furthermore, Bose-Chaudhuri-Hocquenghem (BCH) block codes and Turbo codes are used to provide error protection against attacks in the watermark channel. Simulation results are provided to demonstrate the improved performance when the proposed approach is implemented with and without channel coding. The superiority of turbo codes against BCH block codes is demonstrated and some constraints involving the application of these codes to watermarking are also discussed.
引用
收藏
页码：149 / 153
页数：5
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