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中文摘要：
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.
英文摘要：
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 attacks.
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