| 基于图像连通性的自适应水印同步方案 |
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| 引用本文： | 王宏霞,罗键.基于图像连通性的自适应水印同步方案[J].西南交通大学学报,2005,40(6):720-726. |
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| 作者姓名： | 王宏霞 罗键 |
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| 作者单位： | 1. 西南交通大学信息安全与国家计算网格实验室,四川,成都,610031
2. 西南财经大学工商管理学院,四川,成都,610074 |
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| 摘 要： | 为提高水印的鲁棒性和安全性,提出了基于图像连通性的自适应水印同步方案.该方案根据图像的连通性得到连通对象,选取较大的连通对象的重心作为水印嵌入的参考点.利用图像的连通性具有拓扑不变性以及图像的重心比较稳定的特性保证水印检测的自适应同步.用作水印嵌入的参考点的高度稳定性,使得该方案不仅对常见图像处理时,而且对全局和局部几何攻击均呈现了较强的鲁棒性.
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| 关 键 词： | 水印同步 连通性 鲁棒性 几何攻击 图像处理 重心 |
| 文章编号： | 0258-2724（2005）06-0720-07 |
| 收稿时间： | 2005-04-19 |
| 修稿时间： | 2005-04-19 |
Selfadaptive Watermarking Synchrorization Scheme Based on Image Connectivity |
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| WANG Hong-xia,LUO Jian.Selfadaptive Watermarking Synchrorization Scheme Based on Image Connectivity[J].Journal of Southwest Jiaotong University,2005,40(6):720-726. |
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| Authors: | WANG Hong-xia LUO Jian |
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| Institution: | 1. Information Security and National Computing Grid Lab. , Southwest Jisotong University, Chengdu 610031, China; 2. School of Business Administration, Southwest University of Finance and Economy of China, Chengdu 610074, China |
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| Abstract: | To improve the robustness and security performances of watermarking,a selfadaptive watermarking synchrorization scheme was proposed.In the scheme,the connected objects are obtained according to image connectivity,and the gravity centers of bigger objects are selected as the reference points for watermark embedding. Selfadaptive synchronization of watermark detection is ensured by the topological invariability of image connectivity and the stability of its gravity center.The high stablility of the reference points for watermark embedding makes watermarks robust not only under common image processing but also under global and local geometrical attacks. |
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| Keywords: | watermarking synchrorization connectivity robustness geometrical attack image processing gravity center |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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