A double domain based robust digital image watermarking scheme

Abstract

In this paper, a double domain based robust digital image watermarking scheme is proposed. Up to now, the existing robust watermarking algorithms can only resist a part of geometrical attacks and some common image processing attacks, while the proposed method can resist almost all geometrical attacks and a lot of common image processing attacks. Firstly, the watermark is embedded in the 3-level DWT coefficients by the parity modulation method, and then the same watermark is embedded in the pixel domain by the similar method. At the detector side, the watermark is extracted twice, one is in the DWT domain, the other is in the pixel domain. Select the watermark which has better visual quality as the final result. By carefully regulating the parameters and selecting the embedding sequence, the watermarks in the two domains are compatible with each other. Experimental results show the effectiveness of the proposed method. © 2008 Springer-Verlag Berlin Heidelberg.