摘要
版权保护一直是图书出版领域的难题之一.根据二维码和主成分分析(PCA)算法的特点,提出一种基于二维码图书版权保护的新的数字水印算法,算法首先对二维码载体图像进行主成分分析(PCA),提取出既含有高频分量又含有低频分量的主成分系数,采用Arnold算法将版权信息水印加密干扰后嵌入到提取出的主成分系数中.实验结果显示,新算法在几何攻击、噪声、图像亮度和对比度的增减等攻击都有很好的鲁棒性.
Copyright protection has always been one of the difficult issues in the field of book publishing.Digital watermarking has been widely used as an important method of copyright protection.According to the characteristics of the QR code and PCA algorithm,this study proposes a digital watermarking algorithm based on QR code book copyright protection.The algorithm firstly uses Principle Components Analysis(PCA)to décor relate the QR code image pixel to obtain the principle component which contains both high frequency and low frequency,then embeds the copyright information watermark after using Arnold scrambling to these principal component factor.The experimental results show that the new algorithm has strong robustness against geometric attacks,noise,image brightness and contrast increase or decrease attacks.
作者
张明
杨辉
黄炳家
郑秋梅
ZHANG Ming;YANG Hui;HUANG Bing-Jia;ZHENG Qiu-Mei(China University of Petroleum,Qingdao 266580,China)
出处
《计算机系统应用》
2019年第9期190-195,共6页
Computer Systems & Applications
基金
国家自然科学基金(61305008)~~
关键词
版权保护
二维码
PCA
ARNOLD置乱
鲁棒性
copyright protection
QR code
Principle Components Analysis(PCA)
Arnold scrambling
robustness
