| 引用本文: | 丁文霞,卢焕章,王浩,等.一种基于混沌的彩色图像空域半脆弱水印算法.[J].国防科技大学学报,2008,30(4):59-63 ,102.[点击复制] |
| DING Wenxia,LU Huanzhang,WANG Hao,et al.A Half-fragile Space Watermarking Algorithm of Color Images Based on Chaotic System[J].Journal of National University of Defense Technology,2008,30(4):59-63 ,102[点击复制] |
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| 一种基于混沌的彩色图像空域半脆弱水印算法 |
| 丁文霞, 卢焕章, 王浩, 谢剑斌 |
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(国防科技大学 电子科学与工程学院，湖南 长沙 410073)
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| 摘要: |
| 为实现对数字产品的版权保护和完整性认证，提出了一种以最低有效位(LSB)替换算法为核心，以彩色图像RGB图层亮度分量为载体的基于混沌二值密钥随机控制的彩色图像空域有意义水印算法。实验结果表明，算法实现简单，实时性好，具有良好的透明性、安全性和确定性，可盲检测，并能够很好地实现版权保护和篡改检测与定位，同时算法对椒盐噪声的去除、裁剪等基本图像操作和位平面去除等恶意攻击具有一定的鲁棒性，因而是一种性能良好的半脆弱水印算法。 |
| 关键词: 混沌 数字水印 半脆弱水印 数字签名 |
| DOI： |
| 投稿日期：2007-11-17 |
| 基金项目: |
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| A Half-fragile Space Watermarking Algorithm of Color Images Based on Chaotic System |
| DING Wenxia, LU Huanzhang, WANG Hao, XIE Jianbin |
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(College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Aimed for the copyright protection and integrality authentication, a space significant watermarking algorithm of color images controlled by chaotic binary keys which mainly use the Least Significant Bit (LSB) substitution operations and regard the lightness data of RGB layers as cover messages has been proposed in this paper. The experimental result shows that the algorithm is easy to implement and has good transparence, high security and conformity. The algorithm can also realize blind detection, copyright protection, sophistication detection and localization efficiently. At the same time, it has good robustness for hostility attacks such as pepper-salt noise wiping off, cutting and bit-plane deleting. So it is a good half-fragile watermarking algorithm. |
| Keywords: chaos digital watermarking half-fragile watermarking digital signature |
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