| 基于对角占优阵的频域数字水印算法 |
| |
| 引用本文： | 刘新,王英,杨国为.基于对角占优阵的频域数字水印算法[J].青岛大学学报(工程技术版),2007,22(3):44-47. |
| |
| 作者姓名： | 刘新 王英 杨国为 |
| |
| 作者单位： | 1. 黑龙江科技学院电气与信息工程学院,哈尔滨,150027
2. 青岛大学自动化工程学院,山东,青岛,266000 |
| |
| 摘 要： | 提出了一种基于对角占优阵的频域水印算法,实现数字产品版权认证。在宿主图像DCT域构造严格对角占优阵并进行LU分解,之后在U阵中进行二值图像水印嵌入。嵌入过程中利用Logistic混沌序列对水印置乱加密,检测过程为盲检测。实验分析表明,该算法具有良好的不可见性、鲁棒性和安全性。
|
| 关 键 词： | 数字水印 对角占优阵 LU分解 混沌置乱 |
| 文章编号： | 1006-9798（2007）03-0044-04 |
| 收稿时间： | 2007-05-19 |
| 修稿时间： | 2007-07-19 |
A Digital Watermarking Algorithm Based on Diagonally Dominant Matrixes in Frequency Domain |
| |
| LIU Xin,WANG Ying,YANG Guo-wei.A Digital Watermarking Algorithm Based on Diagonally Dominant Matrixes in Frequency Domain[J].Journal of Qingdao University(Engineering & Technology Edition),2007,22(3):44-47. |
| |
| Authors: | LIU Xin WANG Ying YANG Guo-wei |
| |
| Affiliation: | 1. School of Electronic Information Engineering HIST, Harbin 150027, China; 2. College of Automation Engineering, Qingdao University, Qingdao 266000, China |
| |
| Abstract: | A digital watermarking algorithm is proposed based on diagonally dominant matrixes in the frequency domain to complete digital products' copyright certification.Binary image watermarks that are scrambled by Logistic chaotic encryption are embedded into the U matrix by LU decomposition in DCT domain.It is a blind detection algorithm.Simulation experiments show the new algorithm with good invisibility,robustness and security. |
| |
| Keywords: | DCT |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
