Title :
A novel DWT-SVD based watermarking scheme
Author :
Ayangar, Vijay R. ; Talbar, S.N.
Author_Institution :
Rajiv Gandhi Coll. of Engg, Res. & Technol., Chandrapur, India
Abstract :
As watermarking is identified as a major technology to achieve copyright protection, the relevant literature includes several distinct approaches for embedding data into a multimedia element. Because of its growing popularity, the Discrete Wavelet Transform (DWT) is commonly used in recent watermarking schemes. In a DWT-based scheme, the DWT coefficients are modified with the data that represents the watermark. In this paper, we present a scheme based on DWT and Singular Value Decomposition (SVD). After decomposing the cover image into four bands (LL, HL, LH, and HH), we apply the SVD to watermark, and modify DWT coefficients of the cover image with the singular values of the visual watermark. Modification in all frequencies allows the development of a watermarking scheme that is robust to a wide range of attacks.
Keywords :
discrete wavelet transforms; image coding; singular value decomposition; watermarking; copyright protection; discrete wavelet transform; image cover; multimedia element; singular value decomposition; visual watermark; watermarking Scheme; Authentication; Copyright protection; Digital images; Discrete wavelet transforms; Educational institutions; Matrix decomposition; Robustness; Signal processing algorithms; Singular value decomposition; Watermarking;
Conference_Titel :
Multimedia Computing and Information Technology (MCIT), 2010 International Conference on
Conference_Location :
Sharjah
Print_ISBN :
978-1-4244-7001-3
DOI :
10.1109/MCIT.2010.5444871