基于混沌置乱和二维条形码的数字水印  

DIGITAL WATERMARKING BASED ON CHAOTIC SCRAMBLING AND 2D BARCODE

作　　者：贾志强[1] 赖惠成[1] 陈慧杰[1] 

机构地区：[1]新疆大学信息科学与工程学院,新疆乌鲁木齐830046

出　　处：《计算机应用与软件》2010年第12期118-120,共3页Computer Applications and Software

基　　金：新疆维吾尔自治区高校科学研究计划项目(XJEDU2006I10)

摘　　要：提出一种基于混沌置乱和二维条形码的数字水印算法,算法以二维条形码作为水印信息,先利用混沌映射产生一个密钥来加密水印信息再对其进行交织、分块编码,然后对其按特定顺序排列等预处理过程与在充分考虑HVS特性的基础上自适应地将水印嵌入到宿主图像小波变换的低频系数上。仿真结果表明该算法在抵抗如JPEG压缩、剪切、旋转等攻击下具有较好的鲁棒性与不可见性。In this paper we provided a digital watermarking algorithm based on chaos scrambling and 2D barcode. The algorithm uses 2D barcode as the watermarking information,and utilizes the chaotic mapping to generate a key at first which encrypts the watermarking information,then carries on interweaving,blocking and encoding,and embedded afterwards the watermarking into low frequency coefficient of wavelet transform of the host image according to the pre-processing course of specific seriation as well as on the basis of full consideration of the characteristic of human eye visuals. Simulation result indicates that this method has better robustness and invisibility against the attacks such as JPEG compression,cropping,rotating and so on.

关 键 词：混沌置乱 二维条形码 数字水印 小波变换 人眼视觉特性 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]