DWT-SVD based Dual Watermarking Scheme

In the recent years, digital watermarking is used for copyright protection and authentication. In this paper, a new dual watermarking scheme based on DWT-SVD is presented to improve the robustness and protection. Both discrete wavelet transform (DWT) and singular value decomposition (SVD) have been used as a mathematical tool to embed watermark in the image. In the proposed technique, two watermarks are embedded in the host image. First watermark is called primary watermark, which is a gray scale digital image. Second watermark is called secondary watermark which is a gray scale meaningful logo instead of randomly generated Gaussian noise type watermark. The secondary watermark is embedded into primary watermark and the resultant watermarked image is used as watermark for the host image. A reliable watermark extraction scheme is developed for the extraction of the primary as well as secondary watermark from the distorted image. Experimental evaluation demonstrates that the proposed scheme is able to withstand a variety of attacks. The secondary watermark is easy to detect in all the cases but sometimes primary one is severely distorted.

[1]  Bin Zhu,et al.  When Seeing Isn’t Believing – Current Multimedia Authentication Technologies and Their Applications , 2004 .

[2]  Ahmed H. Tewfik,et al.  Robust audio watermarking using perceptual masking , 1998, Signal Process..

[3]  Xiang-Gen Xia,et al.  A multiresolution watermark for digital images , 1997, Proceedings of International Conference on Image Processing.

[4]  Li Wenbo,et al.  A chaos-based robust wavelet-domain watermarking algorithm , 2004 .

[5]  Yongjian Hu,et al.  Using invisible watermarks to protect visibly watermarked images , 2004, 2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512).

[6]  Andreas Uhl,et al.  Survey of wavelet-domain watermarking algorithms , 2001, IS&T/SPIE Electronic Imaging.

[7]  Yuan-Pei Lin,et al.  Wavelet tree quantization for copyright protection watermarking , 2004, IEEE Transactions on Image Processing.

[8]  Tieniu Tan,et al.  An SVD-based watermarking scheme for protecting rightful ownership , 2002, IEEE Trans. Multim..

[9]  Ahmet M. Eskicioglu,et al.  ROBUST EMBEDDING OF VISUAL WATERMARKS USING DWT-SVD , 2005 .

[10]  Mohan S. Kankanhalli,et al.  A dual watermarking technique for images , 1999, MULTIMEDIA '99.

[11]  A.H. Tewfik,et al.  When seeing isn't believing [multimedia authentication technologies] , 2004, IEEE Signal Processing Magazine.

[12]  Ahmet M. Eskicioglu,et al.  Robust embedding of visual watermarks using discrete wavelet transform and singular value decomposition , 2005, J. Electronic Imaging.