| 基于水平集方法的抵抗几何攻击的多比特图像水印算法 |
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| 引用本文： | 郝 悦,赵 耀,倪蓉蓉. 基于水平集方法的抵抗几何攻击的多比特图像水印算法[J]. 通信学报, 2011, 0(10): 135-142 |
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| 作者姓名： | 郝 悦 赵 耀 倪蓉蓉 |
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| 作者单位： | 北京交通大学信息科学研究所;现代信息科学与网络技术北京市重点实验室; |
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| 基金项目： | 国家杰出青年科学基金资助项目(61025013); 国家自然科学基金资助项目(60702013,61073159); 北京市自然科学基金资助项目(4073038); 中央高校基本科研业务费专项基金资助项目(2009JBZ006)~~ |
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| 摘 要： | 提出了一种基于水平集方法的多比特顽健水印算法。该算法首先利用水平集方法在图像中确定一个稳定的图像轮廓,进而确定一个位置稳定的单位圆,然后计算这个单位圆的伪Zernike矩,利用抖动量化的方法将水印嵌入伪Zernike矩的幅值上。水印的检测过程采用均方根误差法提取出水印。克服了传统基于伪Zernike矩水印算法的缺点,同时可以很好地抵抗各种几何攻击。
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| 关 键 词： | 顽健水印 水平集方法 几何攻击 伪Zernike矩 |
Multibit image watermarking algorithm resistant to geometric attacks based on level set method |
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| HAO Yue,ZHAO Yao,NI Rong-rong. Multibit image watermarking algorithm resistant to geometric attacks based on level set method[J]. Journal on Communications, 2011, 0(10): 135-142 |
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| Authors: | HAO Yue ZHAO Yao NI Rong-rong |
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| Affiliation: | HAO Yue,ZHAO Yao,NI Rong-rong (1.Institute of Information Science,Beijing Jiaotong University,Beijing 100044,China,2.Beijing Key Laboratory of Advanced Information Science and Network Technology,China) |
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| Abstract: | A multibit watermarking algorithm based on level set method was proposed.First,the stable location of the unit disk was found using level set method.Then,pseudo-Zernike moments were calculated.At last,the watermark was embedded by modifying the pseudo-Zernike moments.In the extraction process,the root-mean-square-error method was employed to detect the watermark.Simulation results show that the algorithm overcomes the defect of the traditional al-gorithm based on pseudo-Zernike moments,while be robust again... |
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| Keywords: | robust watermarking level set method geometric attacks pseudo-Zernike moment |
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