| 一种基于DCT域的数字水印方案研究 |
| |
| 引用本文： | 徐先传,张琦. 一种基于DCT域的数字水印方案研究[J]. 微计算机信息, 2007, 23(12): 59-61 |
| |
| 作者姓名： | 徐先传 张琦 |
| |
| 作者单位： | 100024,北京,中国传媒大学,工学院广播电视工程系 |
| |
| 摘 要： | 空间数字水印算法简单易行,早期的水印算法主要在空间域中实现:但是空间域数字水印算法难以有效的利用人类视觉系统特性,水印信息嵌入强度较小以确保水印信息的不可见性,故使得水印信息的鲁棒性较差,而变换域数字水印算法往往将水印信息通过的某种可逆变换分散到整个图像之中,因此可以获得很高的鲁棒性。本文介绍了一种变换域图像数字水印技术,同时提出相应的新算法。
|
| 关 键 词： | 数字水印 DCT 鲁棒性 |
| 文章编号： | 1008-0570（2007）04-3-0059-03 |
| 修稿时间： | 2007-03-03 |
A New Watermarking Method based on DCT |
| |
| XU XIANCHUAN,ZHANG QI. A New Watermarking Method based on DCT[J]. Control & Automation, 2007, 23(12): 59-61 |
| |
| Authors: | XU XIANCHUAN ZHANG QI |
| |
| Affiliation: | School of Broadcast and Television Engineering, Communication University of China, Beijing, 325027 |
| |
| Abstract: | The spatial digital watermarking algorithm is simple. In the early time, the watermarking algorithm was always carried out in the DCT domain, but the DCT digital watermarking is hard to use the characteristic of human visual system, and the inserted intensity of watermarking information is low for the invisibility. Therefore, the watermarking information is not robust. However, the DCT digital watermarking algorithm can disperse the watermarking information to the whole image by means of some reversible method. A DCT domain digital watermarking technology and a corresponding new algorithm were introduced in this paper. |
| |
| Keywords: | Digital Watermarking DCT Robust |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
