计算机工程与科学2012，Vol.34Issue(11)：109-113,5.DOI:10.3969/j.issn.1007-130X.2012.11.019
基于SVD的彩色图像盲水印算法
A Blind Watermarking Algorithm of Color Image Based on SVD
摘要
Abstract
In order to protect the copyrights of digital products, a color watermarking algorithm based on lifting wavelet transform (LWT) and singular value decomposition(SVD) is proposed. The LWT is quick and it is suitable for any size of image. The SVD has geometrical invariances and it shows the intrinsic characteristics of the image. This algorithm makes use of the characteristics of the LWT and the SVD, and chooses the blue channel of the color image to embed watermarking. The algorithm firstly uses multi-levels LWT on the original image, secondly applies the SVD on low frequency subband and middle frequency subbands, thirdly uses Arnold to scramble the gray-scale watermarking, and finally divides it into four parts that are embedded into the singular values matrices . It does not need the original image when the watermarking is extracted, so it can be better applied into the practice. The experiment shows that the algorithm has good transparency and robustness to common attacks and geometric attacks.关键词
数字水印/奇异值分解/提升小波变换/透明性/鲁棒性Key words
digital watermarking/ singular value decomposition/ lifting wavelet transform (LWT)/ transparency/robustness分类
信息技术与安全科学引用本文复制引用
郭巧丹,吴锡生..基于SVD的彩色图像盲水印算法[J].计算机工程与科学,2012,34(11):109-113,5.基金项目
国家自然科学基金资助项目(60973094) （60973094）
