| 不变小波域内基于DWT的图像数字水印 |
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| 引用本文： | 黄欣阳,蔺大正,谭敏生,罗扬.不变小波域内基于DWT的图像数字水印[J].云南大学学报(自然科学版),2007,29(5):470-476. |
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| 作者姓名： | 黄欣阳 蔺大正 谭敏生 罗扬 |
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| 作者单位： | 1. 南华大学,计算机科学技术学院,湖南,衡阳,421001
2. 西华大学,数学与计算机学院,四川,成都,610039 |
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| 基金项目： | 国家自然科学基金资助项目（60572137）;湖南省科技计划资助项目（2006GK3084） |
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| 摘 要： | 面对各种几何攻击,现有数字水印算法露出各种缺陷,到目前为止还没有发现真正能抵抗各种攻击特别是几何攻击的算法.利用具有旋转、伸缩、平移不变性的RST不变小波变换设计了一种新颖的基于量化边通信模型的DWT盲数字水印算法.实验表明,这种新颖算法对于旋转、伸缩、平移等普通几何攻击以及滤波与噪声等多种攻击具有较好的鲁棒性,但该算法对局部几何攻击具有一定的敏感性.
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| 关 键 词： | RST 不变小波 几何攻击 数字水印 DWT |
| 文章编号： | 0258-7971（2007）05-0470-07 |
| 修稿时间： | 2006-10-25 |
An image digital watermarking based on DWT in invariant wavelet domain |
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| HUANG Xin-yang,LIN Da-zheng,TAN Min-sheng,LUO Yang.An image digital watermarking based on DWT in invariant wavelet domain[J].Journal of Yunnan University(Natural Sciences),2007,29(5):470-476. |
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| Authors: | HUANG Xin-yang LIN Da-zheng TAN Min-sheng LUO Yang |
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| Institution: | 1. School of Computer Science and Technology, University of South China, Hengyang 421001, China; 2. School of Computers and Mathematical Science, Xihua University, Chengdu 610039, China |
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| Abstract: | In the face of geometrical attacks,all shortcomings of the almost all digital watermarking algorithms have been exposed.Perhaps there is no algorithm against every attack especially geometrical attacks.It is designed a novel blind image watermarking algorithm of Scalar Costa System based on the DWT transformation in the Rotation-and Scale-and Translation-(RST) Moment Invariant Wavelet,i.e.RSTMIW domain.The experiments show that this novel algorithm is robust against RST geometrical,filter and noise attacks,however,sensitive to some local geometrical attacks. |
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| Keywords: | RST DWT |
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