| 两种基于 DCT 变换的数字水印算法分析 |
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| 引用本文： | 孟兵,周良柱,万建伟,楼生强. 两种基于 DCT 变换的数字水印算法分析[J]. 国防科技大学学报, 1999, 21(6): 75-79 ,92 |
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| 作者姓名： | 孟兵 周良柱 万建伟 楼生强 |
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| 作者单位： | 国防科技大学电子工程学院!长沙410073 |
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| 摘 要： | 本文介绍了多媒体数字水印的概念，对当前的技术现状进行了简单的综述，重点研究了两种ＤＣＴ 域上的数字水印算法的检测过程，在此基础上对两者的性能和特点进行了分析，并且进行了实验仿真验证。
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| 关 键 词： | 版权保护 数字水印 DCT变换 图象处理 |
| 收稿时间： | 1999-04-15 |
The Analysis of Two Digital Watermark Algorithms Using DCT |
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| Meng Bing,Zhou Liangzhu,Wan Jianwei and Lou Shengqiang. The Analysis of Two Digital Watermark Algorithms Using DCT[J]. Journal of National University of Defense Technology, 1999, 21(6): 75-79 ,92 |
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| Authors: | Meng Bing Zhou Liangzhu Wan Jianwei Lou Shengqiang |
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| Affiliation: | Department of Electronics Technology, NUDT, Changsha, 410073;Department of Electronics Technology, NUDT, Changsha, 410073;Department of Electronics Technology, NUDT, Changsha, 410073;Department of Electronics Technology, NUDT, Changsha, 410073 |
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| Abstract: | In this paper, the concept of multimedia digital watermark is introduced. The present state of this technology is summarized. The hypothesis test procedures of two different algorithms using DCT are analysed, and threshold choice problem is discussed. Computer simulation is done to confirm the conclusions made. |
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| Keywords: | Copyright Protection Digital Watermarking DCT Image Processing |
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