摘要
提出一种以矩阵奇异值分解(SVD)为基础的数字水印防伪方法.根据电子票的基本信息和设置好的QR码参数,生成包含电子票信息的QR码电子票,对QR码电子票进行随机加噪处理和对水印图像进行Arnold置乱处理;对载体图像进行分块后做DCT变换,提取每块的中频系数得到矩阵,对矩阵进行SVD变换后,在奇异值处嵌入水印.该方法能确保QR码正确识读和水印的不可见性,具有一定抗攻击能力.
A digital watermarking anti-counterfeiting method based on singular value decomposition(SVD)is proposed to solve the anti-counterfeiting problem of QR electronic ticket.Firstly,according to the basic information of the electronic ticket and the QR code parameters,generating QR code electronic tickets containing electronic ticket information,the QR code electronic ticket is randomly noised and the watermark image is scrambled by Arnold.Then the carrier image is divided into blocks and performing DCT transform,extracting the intermediate frequency coefficients from each block to get a matrix.After the SVD transform is applied to the matrix,the watermark is embedded at the singular value.This method can ensure the correct recognition of QR code and the invisibility of watermark,it also has a certain ability to resist attack.
作者
陈星娥
郑薇玮
吴小菁
高建清
CHEN Xinge;ZHENG Weiwei;WU Xiaojing;GAO Jianqing(College of Electronics and Information Science,Fujian JiangxiaUniversity,Fuzhou 350108,China)
出处
《牡丹江师范学院学报（自然科学版）》
2020年第1期41-44,共4页
Journal of Mudanjiang Normal University：Natural Sciences Edition
基金
福建省中青年教师教育科研项目（JAT170620）
福建江夏学院青年科研人才培育基金项目（JXZ2013008
JXZ2013007）
福建江夏学院数字福建智能家居信息采集及处理物联网实验室项目
关键词
电子票
SVD
QR
数字水印
electronic ticket
singular value decomposition
QR code
digital watermarking
