计算机应用研究2011，Vol.28Issue(5)：1981-1982,1986,3.DOI:10.3969/j.issn.1001-3695.2011.05.110
基于奇异值与提升小波的彩色图像水印算法
Color image watermark algorithm based on SVD and lifting wavelet transformation
徐国荣 1王礼平2
作者信息
- 1. 漳州师范学院,物理与信息工程系,福建,漳州,363000
- 2. 中南民族大学,电子信息工程学院,武汉,430074
- 折叠
摘要
Abstract
This paper proposed a color image digital watermarking algorithm based on SVD and LWT. At first transformed the color image to YUV spatial domain from RGB. Then transformed the luminance component Y of color image in YUV color space with the lifting wavelet, decomposed the coefficients of low frequency by SVD, similarly decomposed the watermark image by SVD and embedded in SVD of the coefficients of low frequency. The simulation results indicate that the algorithm has both good quality for watermarked image invisible and excellent robustness against common attacks and geometric distortion, furthermore algorithm is simple and quick, and it is satisfied with real-time and speediness watermark application. The algorithm uses a gray image as a watermark, increasing embedded information capacity, so it has some practical value for copyright protection.关键词
奇异值分解/提升小波变换/彩色图像/RGB空间/YUV空间/数字水印Key words
singular value decomposition (SVD)/ lifting wavelet transformation (LWT)/ color image/ RGB spatial/ YUV spatial/ digital watermark分类
信息技术与安全科学引用本文复制引用
徐国荣,王礼平..基于奇异值与提升小波的彩色图像水印算法[J].计算机应用研究,2011,28(5):1981-1982,1986,3.
