华东理工大学学报（自然科学版）2018，Vol.44Issue(1)：97-103,7.DOI:10.14135/j.cnki.1006-3080.20170220002
一种适用于QR码的抗打印扫描的水印算法
A Watermarking Algorithm for Print-Scan Process on QR Code
刘子鸣 1林家骏1
作者信息
- 1. 华东理工大学信息科学与工程学院,上海200237
- 折叠
摘要
Abstract
The openness of 2D barcode coding rule makes regenerating the same content 2D barcode become possible,which further makes the invisible watermarking technology on 2D barcode become necessary.This paper proposes a watermarking algorithm for print-scan process on 2D barcode.The characteristics of QR code and the influence of print-scan process on the DCT coefficient are firstly analyzed.And then,the artificial blur and noise are used in the proposed algorithm to improve the invisibility and grayscale and the DCT coefficients in specified position are intensified.Finally,the intermediate frequency coefficient classification statistical method is used to realize the watermark embedding.The experimental results show that compared with the algorithm without using intensified coefficient,the proposed algorithm in this paper can attain stronger robustness and higher invisibility.关键词
二维条码/数字水印/打印扫描Key words
2D barcode/digital watermarking/print-scan分类
信息技术与安全科学引用本文复制引用
刘子鸣,林家骏..一种适用于QR码的抗打印扫描的水印算法[J].华东理工大学学报（自然科学版）,2018,44(1):97-103,7.
