| 频域数字水印算法的研究 |
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| 引用本文： | 李宁,卞玉存,王新伟,陈树中. 频域数字水印算法的研究[J]. 计算机应用, 2001, 21(10): 41-43,46 |
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| 作者姓名： | 李宁 卞玉存 王新伟 陈树中 |
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| 作者单位： | 华东师范大学计算机系,上海,200062 |
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| 摘 要： | 文中着重分析了频域数字水印算法，分析了宿主图像可能遭受的常见攻击，提出了一些相应的对策，分析了一套基于DCT变换的数字水印算法，查找出了两个漏洞，并且对原算法作了改进。实验证明，与原算法相比，改进的算法具有更强的隐蔽性和鲁棒性。
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| 关 键 词： | 数字水印 鲁棒性 频域 DCT 算法 图像处理 图像质量 版权保护 |
| 文章编号： | 1001-9081(2001)10-0041-03 |
RESEARCH ON FREQUENCY FIELD DIGITAL WATERMARK ALGORITHM |
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| LI Ning,BIAN Yu cun,WANG Xin wei,CHEN Shu zhong. RESEARCH ON FREQUENCY FIELD DIGITAL WATERMARK ALGORITHM[J]. Journal of Computer Applications, 2001, 21(10): 41-43,46 |
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| Authors: | LI Ning BIAN Yu cun WANG Xin wei CHEN Shu zhong |
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| Abstract: | In this paper, frequency field digital watermark algorithm was analyzed on emphasis. We analyze common attack what host image may often suffer, put forward some corresponding countermeasures; analyze a digital watermark algorithm based on DCT, find two leaks, and make improvement on this algorithm. Experiment proves that compared with the original algorithm, improved algorithm has better invisibility and robustness. |
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| Keywords: | digital watermarking image robustness frequency field DCT |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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