电子科技大学学报Issue(3)：426-431,6.DOI:10.3969/j.issn.1001-0548.2014.03.019
基于矩阵编码和多重水印的JPEG图像块级认证算法
Block Level Authentication Algorithm for JPEG Image Based on Matrix Coding and Multi-Watermarking
摘要
Abstract
JPEG image is one of the commonly used image format. Because of the less redundant data, the length of authentication watermark for JPEG images authentication should be as short as possible. In this paper, combined with matrix encoding and multiple watermarking, a block-level authentication algorithm for JPEG images is proposed. Matrix encoding can shorten the length of the watermark magnitude and accurately locate one information change. And then multi-watermarks are generated for the tampering of the image block authentication. The detailed analysis is given about the missing rate and the false detection rate in this paper. Theoretical analysis and experimental results show that the JPEG images block-level tamper localization can be done under the lower tamper rate. The missing rate and the false detection rate are at the 10-2 level, even if 2 bits watermark are embedded in the rate of tampering is less than 5%.关键词
图像认证/JPEG图像/矩阵编码/多重水印Key words
image authentication/JPEG image/matrix encoding/multi-watermark分类
信息技术与安全科学引用本文复制引用
巩道福,刘粉林,罗向阳,汪萍..基于矩阵编码和多重水印的JPEG图像块级认证算法[J].电子科技大学学报,2014,(3):426-431,6.基金项目
国家自然科学基金(61272489,61379151,61302159)；河南省科技攻关计划(122102210516)；中国博士后基金(2012T50842,201104911838) （61272489,61379151,61302159）
