基于Zigzag-Logistic双置乱的多重数字水印算法研究  

Research on multiple digital watermarking algorithms based on Zigzag-Logistic double scrambling

作　　者：于立君[1] 王辉[1] 王强 王莹莹 YU Lijun;WANG Hui;WANG Qiang;WANG Yingying(College of Automation,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学自动化学院,黑龙江哈尔滨150001

出　　处：《实验技术与管理》2020年第12期193-198,共6页Experimental Technology and Management

基　　金：黑龙江省教改项目:工程教育专业遇到区块链的探索与实践(SJGY20180090);“大类培养体系下学院多层次国际化人才培养模式探索与实践研究”(SJGY20180089);“专业认证成果导向教育对学分制大类人才培养模式专业分流影响的研究”(SJGY20190127);专业课程达成度评价模式对人才培养质量的影响研究(哈工程本科生院〔2020〕28号)。

摘　　要：作为数字图像处理实验的创新实验项目,数字水印算法一直备受学生关注。为提高水印信息传输的安全性,利用Zigzag-Logistic进行双重迭代置乱,并基于YIQ彩色空间设计一种多重数字水印算法,实现将多重数字水印嵌入到彩色载体图像中。对彩色载体图像的Y分量进行三层离散小波分解,并在LL3和HL3层中嵌入两个鲁棒水印用于数字产品的版权保护和认证,在HL2层嵌入认证水印。仿真实验表明,算法具有较强的鲁棒性,不仅可以实现版权保护,还可以定位彩色载体图像被恶意篡改的区域,实现篡改定位功能。As an innovative experimental project of digital image processing experiments,digital watermarking algorithms have always attracted the attention of students.In order to improve the safety of watermarking information transmission,Zigzag-Logistic is used for double iterative scrambling.Based on YIQ color space,a multiple digital watermarking algorithm is designed to embed the multiple digital watermarking into the color carrier image.The Y component of color carrier image is decomposed by three-layer discrete wavelet.Two robust watermarks are embedded in LL3 and HL3 layers for copyright protection and authentication of digital products,and authentication watermarks are embedded in HL2 layer.Simulation experiment shows that the algorithm has strong robustness,which can not only realize copyright protection,but also locate the region where the color carrier image has maliciously been tampered with,realizing the tamper location function.

关 键 词：创新实验项目 双重迭代置乱 YIQ彩色空间 水印算法 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] G642[自动化与计算机技术—计算机科学与技术]