ABSTRACT: In this paper, a novel watermarking scheme for color images is proposed. The host image is transformed from RGB color space to YCbCr color space. First discrete cosine transform is applied on all the components of the image and then all the transformed components are further decomposed by l-level wavelet packet transform. A gray scale watermark is embedded in all the frequency sub-bands of the image. A reliable extraction scheme is developed for the extraction of the watermark from the distorted images. Experimental results show that the proposed watermarking algorithm provides good results in terms of imperceptibility and is also robust against variety of attacks.
Advance Computing Conference (IACC), 2010 IEEE 2nd International; 03/2010
Proceedings - 3rd International Conference on Emerging Trends in Engineering and Technology, ICETET 2010; 01/2010
2009 IEEE International Advance Computing Conference, IACC 2009; 01/2009