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水印鲁棒性:纠错编码有效吗?

黄继武 谷利民 施云庆

黄继武, 谷利民, 施云庆. 水印鲁棒性:纠错编码有效吗?. 自动化学报, 2005, 31(5): 683-692.
引用本文: 黄继武, 谷利民, 施云庆. 水印鲁棒性:纠错编码有效吗?. 自动化学报, 2005, 31(5): 683-692.
HUANG Ji-Wu, GU Li-Min, SHI Yun-Qing. Robustness of Watermarking: Is Error Correcting Coding Effective?. ACTA AUTOMATICA SINICA, 2005, 31(5): 683-692.
Citation: HUANG Ji-Wu, GU Li-Min, SHI Yun-Qing. Robustness of Watermarking: Is Error Correcting Coding Effective?. ACTA AUTOMATICA SINICA, 2005, 31(5): 683-692.

水印鲁棒性:纠错编码有效吗?

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    通讯作者:

    黄继武

Robustness of Watermarking: Is Error Correcting Coding Effective?

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    Corresponding author: HUANG Ji-Wu
  • 摘要: Robustness is one of the most important requirements of digital watermarking for many applications. Spread-spectrum based methods are not effective enough to ensure their robustness. By modeling digital watermarking as digital communications, several researchers proposed using error correcting coding (ECC) to improve robustness. However, an important fact that has long been neglected is that due to the imperceptibility requirement, the redundancy introduced by ECC will lead to a decrease of the magnitude of watermark signal. Therefore, a problem arises naturally: Could the usage of ECC effectively improve the robustness of watermarking? This paper addresses this problem from the perspectives of both theoretical analysis and experimental investigation. Our investigation shows that ECC cannot effectively improve the robustness of watermarking against a great majority of various attacks except for cropping and jitter attacks. Hence, ECC should not be considered as a universal measure that can be employed to enhance robustness of watermarking.
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  • 收稿日期:  2003-11-11
  • 修回日期:  2005-05-18
  • 刊出日期:  2005-09-20

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