摘要
本文利用Logistic混沌系统的良好特性,设计其对数据进行置乱加密.将混沌置乱加密应用到数字水印技术中,利用混沌序列对水印进行加密后再嵌入到载体图像的整数小波域中,在不增加水印信息量的前提下可提高数字水印的保密性,而且不影响水印的鲁棒性和不可见性.通过实验表明,该混沌加密算法具有简单灵活、可操作性强、水印鲁棒性良好等特点,是一种行之有效的算法.
In this paper,good characteristics of logistic chaos system is designed to encrypt datum. Chaotic encryption is applied to digital watermarking technology,in which watermarks are encrypted and embedded into integer wavelet domain. So the method can improve watermarks＇safety,and it can’t influence the robustness and invisibility. Experiments show that watermarking has good robustness and locates distorted area.
出处
《内蒙古民族大学学报（自然科学版）》
2010年第2期163-165,共3页
Journal of Inner Mongolia Minzu University：Natural Sciences
关键词
混沌模型
混沌加密
混沌置乱
数字水印技术
Chaos model
Chaotic encryption
Chaotic scrambling
Digitalwatermarking technology
