自适应的基于混沌序列的数字水印算法  

Adaptive algorithm based on chaotic sequence for digital watermarking

作　　者：成亚萍[1] 傅德胜[1] 季赛[1] 

机构地区：[1]南京信息工程大学计算机科学与技术系,江苏南京210044

出　　处：《计算机工程与设计》2007年第16期3943-3944,3948,共3页Computer Engineering and Design

基　　金：南京信息工程大学科研基金项目(Y505)

摘　　要：算法是以混沌系统产生的实数序列为水印,结合HVS模型,将水印嵌入8×8DCT的中频系数中。实验结果证明,该算法具有较强的鲁棒性,水印检测结果正确。算法采用混沌序列为水印信号,具有易产生、数量多,保密性好的优点,可以有效地解决实际应用中大量数字水印产生的问题及数字水印标准化问题,有利于数字水印技术走向实际应用。An algorithm is proposed, which real number produced by chaotic system as watermarking signal is embedded in 8×8 DCT intermediate frequency coefficient with HVS model as reference. The experimental results show that the algorithm has better robustness and fight test conclusion. The adoption of chaotic sequence watermark can meet the tremendous demand in the applications and the standardization of watermark signals for its easily producing, large quantity and security. Chaotic watermark signal will help watermarking technology come into realization.

关 键 词：数字水印 混沌 人眼视觉系统 WATSON模型 离散余弦变换 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]