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采用图像几何校正和分块压缩感知测量值奇异值分解的鲁棒水印技术

DOI: 10.11830/ISSN.1000-5013.2015.05.0535

Keywords: 数字水印图像, 分块压缩感知, 奇异值分解, 几何攻击, 几何校正, 鲁棒性

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Abstract:

针对直接在图像压缩采样测量值上嵌入水印的方案对常规攻击和几何攻击鲁棒性差的问题,提出一种基于图像几何校正和分块压缩感知测量值奇异值分解(SVD)的鲁棒水印方案.对测量值的奇异值进行量化嵌入水印,并在水印检测前,用图像归一化技术对受到几何攻击的含水印图像进行几何校正,确保水印可以被正确提取.实验表明:该方法提高了水印对常规攻击和几何攻击的鲁棒性.

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