计算机工程2011，Vol.37Issue(16)：147-148,157,3.DOI:10.3969/j.issn.1000-3428.2011.16.050
基于Schur分解的Contourlet域水印方案
Contourlet Domain Watermark Scheme Based on Schur Decomposition
摘要
Abstract
To solve the computationally intensive problems of large amount of calculation and difficult algorithm realization in the digital watermark scheme based on Singular Value Decomposition(SVD). This paper proposes a blind watermark scheme in Contourlet domain based on Schur factorization. It transforms the cover image by Contourlet transform and obtains block symmetric matrices using matrix splitting method, decomposes the selected symmetric blocks by adopting Schur factorization and qualifies the diagonal elements to complete the watermark embedding, and watermark extraction is the inverse process of watermark embedding. Experimental results show that the scheme has fast speed of embedding and extraction, and it is efficiently invisible and robust.关键词
数字水印/Contourlet变换/Schur分解/盲检测/鲁棒性Key words
digital watermark/Contourlet transform/Schur decomposition/bund detection/robustness分类
信息技术与安全科学引用本文复制引用
刘鹏,魏娟,杨峻..基于Schur分解的Contourlet域水印方案[J].计算机工程,2011,37(16):147-148,157,3.基金项目
河南省基础与前沿技术研究计划基金资助项目(092300410145) （092300410145）
河南省教育厅自然科学研究基金资助项目(2011B510001) （2011B510001）
