一种基于内容保护与优化识别的二维码方案  

A Two-Dimensional Code Scheme Based on Content Protection and Optimization Recognition

作　　者：蒋鹏程 熊礼治[1] 韩啸 JIANG Peng-cheng;XIONG Li-zhi;HAN Xiao(School of Computer and Software,Nanjing University of Information Science & Technology,Nanjing 210044,China)

机构地区：[1]南京信息工程大学计算机与软件学院,江苏南京210044

出　　处：《软件导刊》2019年第2期119-122,共4页Software Guide

基　　金：南京信息工程大学大学生实践创新训练计划项目(201710300174)

摘　　要：近年来,二维码作为一种存储与传递信息的新技术被应用于很多领域,例如共享单车、安全支付等。在扫描过程中,二维码作为信息媒介与身份认证的工具发挥了重要作用,但因二维码广泛使用带来的安全问题也层出不穷。因此,在保证二维码可用性的基础上,需提高二维码的安全性并对其进行美化,使其图案具有一定防伪能力。结合二维码理论,使用安全哈希算法对其内容进行加密,并采用像素替换法使二维码具有较好的美观性与视觉辨识度。扫描时通过二值化算法,并结合灰度化处理,从而获取二维码信息。实验结果表明,该方案能达到较好的防伪效果,并能保持一般二维码具有的最大内容容量。In recent years,two-dimensional code,as a new technology for storing and transmitting information,has been applied to many areas,such as sharing bicycles,secure payment and so on.In the process of scanning,two-dimensional code plays a very important role as a tool for information media and identity authentication,but the security problems brought about by the wide use of two-dimensional code keep emerging.Therefore,the purpose of this paper is to improve the security of two-dimensional code,beautify two-dimensional code on the basis of ensuring the availability of two-dimensional code,and also have a certain anti-counterfeiting ability on the pattern.This scheme will combine the two-dimensional code theory to encrypt the content by using the secure hash algorithm,and make the two-dimensional code with a certain beauty and visual identification by the pixel replacement method.The two valued algorithm and gray scale processing of two-dimensional code are used to get information.Experimental data show that it can resist attacks such as forged two-dimensional codes to some extent and can still maintain the maximum content capacity of general two-dimensional codes.

关 键 词：二维码 图像加密 二值化处理 美观二维码 信息隐藏 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]