| 基于混沌系统的数字水印技术 |
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| 引用本文： | 陈永红.基于混沌系统的数字水印技术[J].重庆师范大学学报(自然科学版),2004,21(1):20-22. |
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| 作者姓名： | 陈永红 |
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| 作者单位： | 重庆师范大学,数学与计算机科学学院,重庆,400047 |
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| 摘 要： | 提出了一种基于混沌映射的数字水印嵌入算法,水印的嵌入位置由混沌映射生成的混沌序列决定,同时在原始图像的不同区域嵌入水印,能有效抵抗剪切攻击,保证水印的安全性;并且嵌入水印的强度因子可以改变,可确保水印是不可见的;本算法提取水印时不需要原始图像,只需要提供密钥即可.
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| 关 键 词： | 混沌系统 混沌序列 数字水印 嵌入 提取 |
| 文章编号： | 1672-6693(2004)01-0020-03 |
| 修稿时间： | 2003年9月1日 |
Digital Watermarking Technology Based on Chaos Sequence |
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| CHEN Yong-hong.Digital Watermarking Technology Based on Chaos Sequence[J].Journal of Chongqing Normal University:Natural Science Edition,2004,21(1):20-22. |
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| Authors: | CHEN Yong-hong |
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| Abstract: | In this paper a digital watermarking algorithm based on chaos sequence is proposed. The position of embedded watermarking is determined by chaos sequence of chaos map. Watermarking is embedded in different area of original image. The watermarking is robust against cut attack. The difference between the watermarked and the original images is invisible.Retrieval of the embedded watermark does not need the original image, but only needs a secret key. |
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| Keywords: | chaos system chaos sequence digital watermarking embed Retrieve |
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