基于混沌理论的彩色QR编码水印技术研究

doi:10.11959/j.issn.1000-436x.2018125

摘要/Abstract

摘要：

为了对彩色QR码进行版权保护以及安全性验证，分别对数字图像混沌加密技术和数字水印技术进行了研究。提出了一种改进的图像混沌加密算法，并以此作为数字水印算法的预处理步骤，随后基于离散小波变换和矩阵的奇异值分解技术，设计了一种彩色QR码数字水印算法。实验验证了该算法的可行性，结果显示该算法对于JPEG压缩、噪声攻击和裁剪攻击具有良好的抵抗性。

关键词: 信息安全, 数字水印, 混沌加密, 彩色QR码

Abstract:

In order to carry on copyright protection and security verification of color QR code,the digital image chaos encryption technology and digital watermarking technology were respectively researched.Firstly,an improved image chaos encryption algorithm was proposed as a preprocessing step of digital watermarking algorithm.Then a color QR code digital watermarking algorithm was designed based on discrete wavelet transform and matrix singular value decomposition.Finally,the feasibility of the algorithm was verified by experiments.The results show that the proposed method has good resistance to JPEG compression,noise attack and cropping attack.

Key words: information security, digital watermarking, chaotic encryption, color QR code

中图分类号:

TP302

印曦,黄伟庆. 基于混沌理论的彩色QR编码水印技术研究[J]. 通信学报, 2018, 39(7): 50-58.

Xi YIN,Weiqing HUANG. Research on color QR code watermarking technology based on chaos theory[J]. Journal on Communications, 2018, 39(7): 50-58.

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设备名称	软件参数
Msi-GE60	系统版本：Windows7 旗舰版（64位）开发环境：Matlab 2016

算法	NC
文献[8]算法	0.965 5
文献[9]算法	0.998 7

阈值T	NC
0.020	0.990 4
0.024	0.993 0
0.028	0.995 5
0.032	0.998 1
0.036	0.998 7
0.040	0.999 4
0.044	0.999 6

算法	Q=20	Q=40	Q=60	Q=80
文献[8]算法	0.955 3	0.937 9	0.928 4	0.927 4
文献[9]算法	0.984 5	0.969 5	0.920 6	0.952 2
本文算法	0.986 5	0.969 0	0.955 8	0.961 8

算法	σ=0.001	σ=0.010	σ=0.100	σ=0.250
文献[8]算法	0.933 7	0.925 5	0.921 3	0.913 1
文献[9]算法	0.961 9	0.947 6	0.936 4	0.943 9
本文算法	0.972 3	0.967 3	0.962 6	0.952 4