| 基于混沌置乱和混沌加密的DCT域数字水印算法 |
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| 引用本文： | 邹长华,谭世恒,林土胜.基于混沌置乱和混沌加密的DCT域数字水印算法[J].微电子学与计算机,2011,28(5):58-62. |
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| 作者姓名： | 邹长华 谭世恒 林土胜 |
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| 作者单位： | 华南理工大学,电信学院,广东,广州,510641 |
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| 基金项目： | 国家自然科学基金项目，广州市科技计划项目 |
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| 摘 要： | 把混沌理论应用到图像置乱中,提出了基于混沌的数字图像置乱算法.利用混沌加密算法来对水印数据进行加密,能有效防止攻击者根据统计学方法来检测到水印.然后,对载体图像进行DCT变换,并在DCT域上嵌入水印.通过抗攻击仿真实验表明,该数字水印算法具有较强的抗剪切攻击和噪声攻击能力.
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| 关 键 词： | 图像置乱 混沌 数字水印 DCT变换 |
Digital Watermarking Algorithm in DCT Based on Chaotic Scrambling and Chaotic Encryption |
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| ZOU Zhang-hua,TAN Shi-heng,LIN Tu-sheng.Digital Watermarking Algorithm in DCT Based on Chaotic Scrambling and Chaotic Encryption[J].Microelectronics & Computer,2011,28(5):58-62. |
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| Authors: | ZOU Zhang-hua TAN Shi-heng LIN Tu-sheng |
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| Affiliation: | ZOU Zhang-hua,TAN Shi-heng,LIN Tu-sheng(School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510641,China) |
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| Abstract: | In this paper,chaos theory is applied to image scrambling,and a new digital image scrambling algorithm based on chaos is proposed.Then chaotic encryption algorithm is used to encrypt watermark,which can prevent the attackers from detecting the watermark according to statistical methods effectively.The carrier image is putted to DCT transform,and the DCT domain is embedded the watermark.The anti-attack experiments show that the proposed algorithm has strong ability in resisting shear attacks and noise attack... |
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| Keywords: | image scrambling chaos digital watermarking DCT |
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