基于奇偶量化的空域抗几何攻击图像水印算法

李雷达; 郭宝龙; 表金峰

doi:10.3724/SP.J.1146.2007.01043

基于奇偶量化的空域抗几何攻击图像水印算法

doi: 10.3724/SP.J.1146.2007.01043

李雷达^{①;郭宝龙},
郭宝龙,
表金峰

基金项目:

国家863计划项目(2006AA01Z127)，国家自然科学基金(60572152)和教育部博士点基金(20060701004)资助课题

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出版历程
- 收稿日期: 2007-06-25
- 修回日期: 2007-10-31
- 刊出日期: 2009-01-19

Spatial Domain Image Watermarking Scheme Robust to Geometric Attacks Based on Odd-Even Quantization

摘要

摘要: 数字水印对几何攻击的鲁棒性问题一直没有得到很好的解决，该文提出了一种能够抵抗RST(旋转、缩放、平移)攻击，局部剪切以及常规信号处理攻击的多比特图像水印算法。该文利用尺度不变特征变换(SIFT)进行水印信号的同步；设计了一种圆环形的水印模式，并在空域采用奇偶量化嵌入水印；并设计了一种奇偶检测器提取水印。实验结果表明该算法能获得很好的图像质量，且能十分有效地抵抗各种几何攻击以及常规的压缩，滤波等攻击。
- 图像水印;几何攻击;SIFT特征点;奇偶量化
Abstract: Watermark robustness to geometric attacks is still an open problem. This paper presents a new multi-bit image watermarking scheme that can resist Rotation, Scaling, Translation (RST), cropping as well as common signal processing attacks. The proposed scheme achieves watermark synchronization using Scale-Invariant Feature Transform (SIFT). The watermark is designed in a cirque pattern and it is embedded in spatial domain using odd-even quantization. An odd-even detector is designed to extract the watermark. Simulation results show that the proposed scheme achieves good image quality and it is robust to geometric attacks as well as traditional image compression, filtering operations.

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参考文献(1)

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