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Image watermarking algorithm based on Contourlet transform
Author(s): 
Pages: 179-181,211
Year: Issue:  14
Journal: Computer Engineering and Applications

Keyword:  ContourletchaoticSingular Value Deeomposition (SVD);
Abstract: 对新一代图像多分辨分析工具Contourlet变换的特性进行了分析和讨论,在此基础上提出了一种利用矩阵SVD分解的稳定性在Contourlet域中频子带系数中进行二值伪随机水印信号嵌入的算法.嵌入时,对中频子带分块,根据块能量选择最终嵌入位置,同时兼顾了鲁棒性和透明性的要求.实验结果与理论分析相符,并且对常见的图像处理操作具有很好的鲁棒性.
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