In this paper, a robust watermarking scheme is proposed for copyright protection using Distributed multiresolution discrete cosine transform(D-MR-DCT) and singular value decomposition. The core idea of the proposed scheme is to decompose an image into four frequency sub-bands using D-MR-DCT and then singular values of every sub-band are modified with the singular values of the watermark. The experimental results show better visual imperceptibility and resiliency of the proposed scheme against intentional or unintentional variety of attacks. © 2009 IEEE.

Gaurav Bhatnagar

Department of Mathematics

IIT Jodhpur

B. Raman

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