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基于图象内容的数字水印模型

DOI: 10.11834/jig.200106122

Keywords: 数字水印,Neymann-Pearson准则,统计模型,水印模型,图象内容,鲁棒性

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Abstract:

为了提高水印算法的鲁棒性,安全性,提出了一种基于图象内容的水印模型(CBWM:Content-BasedWatermarkingModel),其基本原理是水印向量被嵌入到图象的特征向量中,且两者相互正交,在此模型中,静止图象的水印检测被归结于Neymann-Pearson准则下的统计模型,将该模型应用于通用的DCT水印算法,从实验结果看,算法性能有很大地提高。

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