文章基本信息

标题：DWT-SVD Based Efficient Image Watermarking Algorithm to Achieve High Robustness and Perceptual Quality
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作者：Seema ; Sheetal Sharma
期刊名称：International Journal of Advanced Research In Computer Science and Software Engineering
印刷版ISSN：2277-6451
电子版ISSN：2277-128X
出版年度：2012
卷号：2
期号：4
出版社：S.S. Mishra
摘要：In order to improve the robustne ss and imperceptiblene ss of the algorithm, a ne w embedding and e xtracting method with DWT-S VD is proposed. The approximation matrix of th e thi rd le vel of image in DWT domain is modified with S VD to embed the s ingul ar value of watermark to the singular value of DWT coefficien t. The propose d embedding and e xtracting method was e mployed to accelerate the hybrid DWT-S VD watermarking and to avoid th e leak of wate rmark. This h ybrid technique leads to opti mize both th e fundamentally conflicting requirements. The expe rimen tal results show both th e good robustn ess u nder numerou s attacks and th e h igh fidelity. The ti me ne eded to perform th e program is greatly de creased.
关键词：Digital wa termark ing; Dig ital signature ; Discrete wavel et transform (DW T); Sing ular Val ue Decompos ition ;(S VD ); Hybri d DW T-SVD