计算机应用研究2012，Vol.29Issue(4)：1402-1404,1408,4.DOI:10.3969/j.issn.1001-3695.2012.04.056
基于奇异值分解的Contourlet域稳健性数字水印算法
Robust digital watermark algorithm in Contourlet domain based on singular value decomposition
摘要
Abstract
To protect the copyright of digital media, this paper proposed a digital watermark algorithm in Contourlet domain. The original image was decomposed with Contourlet transformation{ CT) , the scrambled watermark image was decomposed with singular value decompositino( SVD) , then, the singular values of watermark image were used to modulate the chosen Contourlet coefficient matrixs. After inverse transformation, obtained a watermarked image. In watermark detection, only the SVD vector of the original image was needed, which meant the blind detection was nearly achieved. Finally, applied a series attacks, the results show that compared with traditional watermark algorithm in wavelet domain, the proposed method achieves great impovement in both invisibility and robustness.关键词
数字水印/Contourlet变换/奇异值分解/不可见性/鲁棒性Key words
digital watermark/ Contourlet transform/ singular value decompositino(SVD) / invisibility/ robustness分类
信息技术与安全科学引用本文复制引用
张飞艳,全桓立,林立宇,秦前清..基于奇异值分解的Contourlet域稳健性数字水印算法[J].计算机应用研究,2012,29(4):1402-1404,1408,4.基金项目
国家自然科学基金资助项目(41001256) （41001256）
湖北省自然科学基金重点资助项目(2009CDA141) （2009CDA141）
空天信息安全可信计算教育部重点实验室(B类)第一批开放研究基金资助项目 （B类）
