基于混沌映射和迭代混合的数字图像水印  

Digital image watermarking based on chaotic map and iterative blending

作　　者：高婷婷[1] 廖晓峰[1] 桑军[1] 

机构地区：[1]重庆大学计算机学院,重庆400044

出　　处：《计算机应用》2004年第8期122-123,126,共3页journal of Computer Applications

基　　金：国家自然科学基金项目 (60 2 71 0 1 9) ;教育部博士点基金项目 (2 0 0 2 0 61 1 0 0 7) ;重庆市科委应用基础研究项目 (7370 )

摘　　要：提出一种基于混沌映射和迭代混合相结合的数字水印技术。为了保证水印信号的低通性 ,对生成的混沌序列进行Peano扫描 ,得到最终要嵌入的水印图像。水印的嵌入采用了图像迭代混合的方法。实验结果表明 ,本方法保证了水印的不可感知性以及鲁棒性 ,且简单易行 ,因此具有较高的实用价值。A digital image watermarking scheme was presented based on chaotic map and iterative blending. To maintain the lowpass property of the watermark signals,the generated chaotic sequences were processed by Peano scanning, before the final watermark image was obtained. The embedding of the watermark was implemented by the iterative blending approach. Experimental results demonstrate that our scheme is effective and useful, guaranteeing the inaudibility and robustness of the watermark.

关 键 词：数字水印 混沌映射 Peano扫描 迭代混合 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]