基于PDF417二维条码的顽健数字水印方法  

Robust digital watermark method based on PDF417 two-dimension code

作　　者：蒋翠玲[1] 黄帅[1] 吴安雯 于文欣[1] 康周茂 李永强[1] 

机构地区：[1]华东理工大学信息科学与工程学院,上海200237

出　　处：《网络与信息安全学报》2016年第9期72-78,共7页Chinese Journal of Network and Information Security

基　　金：国家自然科学基金资助项目(No.61371150;No.61501187);华东理工大学国家级大学生创新创业计划基金资助项目(No.201510251055);华东理工大学创新创业计划基金资助项目(No.XY201505;No.2016S16065)~~

摘　　要：利用PDF417二维条码其条块边角的特点,提出了一种基于条块边角的PDF417条码水印方法。首先对水印信息整体进行预判,以选择合适的黑白交界区域作为水印嵌入位置,根据水印内容对二维码图像的相关信息进行修改,以实现水印的嵌入和提取。实验结果表明,此算法相比同类空间域水印算法,具有更大的水印嵌入容量和更高的图像品质。同时,具有较好的抗JPEG压缩、高斯噪声和打印扫描功能,具有较强的顽健性。A digital watermark method based on the bar-block-margin characteristics of PDF417 two-dimension code was presented. The proposed method prejudges the watermark information to choose the suitable embedding positions. According to the watermark, the information of the original PDF417 image was modified for embedding and extracting. The experimental results showed that, in comparison with the other methods in the spatial domain, the proposed method has a higher capacity and better watermarked image quality, as well as better robustness against JPEG compression, Gaussian noise and printing and scanning.

关 键 词：二维条码 数字水印 容量 顽健性 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]