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基于参数自适应的ISS盲水印算法

DOI: 10.11834/jig.20070606

Keywords: 数字水印,ISS,人类视觉系统

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Abstract:

提出了一种基于改进的扩频(improvedspreadspectrum,ISS)技术的盲水印算法,针对ISS技术局部嵌入失真不可控制的缺点,结合人类视觉系统模型(HVS模型)建立一个限失真的数学模型实现水印自适应最优嵌入。实验结果表明,提出的算法克服了ISS算法中局部失真大的问题,并且有比ISS算法更好的鲁棒性。水印图像在JPEG压缩、各种噪声、常见滤波的攻击下能够提取出水印信息,表现较强的鲁棒性。

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