期刊名称：International Journal of Computer Science and Information Technologies
电子版ISSN：0975-9646
出版年度：2014
卷号：5
期号：2
页码：2413-2417
出版社：TechScience Publications
摘要：Watermarking is mainly used for copyright protection for multimedia data. This paper presents Discrete Wavelet Transform, Discrete Cosine Transform and linear algebra called Singular Value Decomposition (DWT-DCT-SVD) for digital image watermarking. In our technique the color image is divided into three color components red, green and blue .Select blue component apply two level DWT. It divides the image into four multiresolution sub bands and we select the sub band with median energy, apply DCT and then apply SVD for it and embed the watermark. The experiments are carried out and our proposed algorithm provides robustness
关键词：Discrete Wavelet Transform; Discrete Cosine;Transform; Singular Value Decomposition
