| Contourlet与小波域鲁棒性水印算法性能比较 |
| |
| 引用本文： | 朱香卫,肖亮,吴慧中.Contourlet与小波域鲁棒性水印算法性能比较[J].计算机工程与应用,2009,45(9):120-122. |
| |
| 作者姓名： | 朱香卫 肖亮 吴慧中 |
| |
| 作者单位： | 1. 南京铁道职业技术学院,苏州校区,江苏,苏州,215031
2. 南京理工大学,计算机科学与技术学院,南京,210094 |
| |
| 摘 要： | 与小波变换不同,Contourlet变换通过各向异性基实现了图像的多尺度多方向性分解,更能捕获图像的曲线奇异性和匹配人类视觉特性。通过分解系数的视觉显著性决定水印强度,不同子带自适应地嵌入水印信号,提出了一种鲁棒性感知水印嵌入算法;该算法在小波分解和Contourlet分解的两种多分辨率框架下对常见水印攻击进行了实验测试。实验结果表明,在同等水印嵌入算法情况下,基于Contourlet和基于Wavelet变换的水印算法都能够抵抗常见攻击手段,但是Contourlet变换算法具有更高的安全性、鲁棒性和不可见性。
|
| 关 键 词： | 数字水印 Wavelet变换 Contourlet变换 人眼视觉系统 鲁棒性 |
| 收稿时间： | 2008-1-28 |
| 修稿时间： | 2008-4-25
|
Performance comparison of robust watermarking algorithm in Contourlet and wavelet domain |
| |
| ZHU Xiang-wei,XIAO Liang,WU Hui-zhong.Performance comparison of robust watermarking algorithm in Contourlet and wavelet domain[J].Computer Engineering and Applications,2009,45(9):120-122. |
| |
| Authors: | ZHU Xiang-wei XIAO Liang WU Hui-zhong |
| |
| Affiliation: | ZHU Xiang-wei1,XIAO Liang2,WU Hui-zhong21.Suzhou Campus,Nanjing Institute of Railway Technology,Suzhou,Jiangsu 215031,China 2.Institute of Computer Science,Nanjing University of Science & Tech.,Nanjing 210094,China |
| |
| Abstract: | Differing from wavelet transform,Contourlet transform has the ability of image multi-scale and direction decomposition using the anisotropic basis,thus it is better to capture the curve singularity and much more match the HVS properties.A unified robust and perceptual watermarking algorithm is presented with respect to two transform domain.The watermarks are adaptively embedded in each frequency sub-band,with the strength adjusted by the visual saliency of transform coefficients.Some experiments of such alg... |
| |
| Keywords: | digital watermarking wavelet transform Contourlet transform human vision system robustness |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《计算机工程与应用》浏览原始摘要信息 |
|
点击此处可从《计算机工程与应用》下载全文 |
|
