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基于特征向量和方程无穷解的非对称水印算法
Asymmetric Watermarking Algorithm based on Eigenvector and Equation Which Has Innumerable Solutions
【摘要】 提出了一种改进的非对称水印算法。应用特征向量的原理和方程具有无穷解时具有的特性产生水印,并采用相关值计算方法对水印进行检测。此外还分析了当对嵌有水印的作品进行穷举搜索攻击和减法攻击时算法的鲁棒性。最后通过实验验证此算法是有效的。
【Abstract】 This paper displays an improved asymmetric watermarking algorithm.The watermark is constructed on the basis of the theorem of eigenvector and the property of an equation which has innumerable solutions.Calculation of correlation value acts as the method of watermark detection.Moreover we analyze its robustness when exhaustive search and subtraction attack are inflicted on the watermarked content.Finally experiments prove that this algorithm is efficacious.
【关键词】 非对称水印;
特征向量;
无穷解;
相关值计算检测;
【Key words】 asymmetric watermarking; eigenvector; innumerable solutions; calculation of correlation value;
【Key words】 asymmetric watermarking; eigenvector; innumerable solutions; calculation of correlation value;
【基金】 国家自然科学基金资助项目NSFC(90304008);西安电子科技大学研究生创新基金创(05019);教育部博士点基金(CUDSFC20040701001)联合资助。
- 【文献出处】 计算机工程与应用 ,Computer Engineering and Applications , 编辑部邮箱 ,2006年32期
- 【分类号】TP309
- 【被引频次】2
- 【下载频次】85