| 基于Radon变换不变矩和小波提升的水印算法 |
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| 引用本文： | 何冰.基于Radon变换不变矩和小波提升的水印算法[J].计算机与数字工程,2011,39(2):124-127,140. |
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| 作者姓名： | 何冰 |
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| 作者单位： | 渭南师范学院物理与电子工程系,渭南,714000 |
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| 基金项目： | 渭南师范学院研究生专项基金(编号:10YKZ069)资助 |
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| 摘 要： | 提出了一种基于Radon变换不变矩和提升小波的抗几何攻击水印算法。该方法首先对图像进行一次提升小波分解,然后计算其低频成分的Radon变换不变矩来构建水印系统。水印提取过程简单,只需计算所得图像的几个Radon变换不变矩不变量。文章给出了实验结果,并与基于几何矩不变量的算法进行了比较。经过仿真实验证明,该方法对于旋转,缩放,平移等攻击具有很好鲁棒性的同时,对于普通的加噪,滤波,JPEG压缩攻击也具有很好的鲁棒性,且具有极低误检率。
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| 关 键 词： | 数字水印 几何攻击 Radon变换不变矩 小波提升 |
A Digital Watermarking Algorithm Based on Radon Transform Invariant Moments and Wavelet Lifting |
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| He Bing.A Digital Watermarking Algorithm Based on Radon Transform Invariant Moments and Wavelet Lifting[J].Computer and Digital Engineering,2011,39(2):124-127,140. |
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| Authors: | He Bing |
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| Affiliation: | He Bing(Department of Physics and Electronic Engineering,Weinan Normal University,Weinan 714000) |
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| Abstract: | This paper proposes a digital watermarking image resisting to geometric attacks based on radon invariant moments and wavelet transform.After doing discrete lifting wavelet transform,the subband coefficients are extracted.Then,the radon invariant moments of the subband coefficients are computed.The watermark is composed of the mean of several functions of the moments.Watermark extraction is simple,and a few radon invariant moments need to be calculated.Experimental results are compared with results of the me... |
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| Keywords: | digital watermarking geometric attacks Radon transform moments wavelet lifting |
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