doi: 10.7763/IJCTE.2009.V1.85
Robust Multiple Image Watermarking Schemeusing Discrete Cosine Transform with Multiple Descriptions
- 1Bapatla Engineering College, Bapatla, Andhra Pradesh, India.
- 2JNTU college of Engineering, Kakinada, Andhra Pradesh, India.
Abstract
A novel oblivious and robust multiple image watermarking scheme using Multiple Descriptions (MD) and Quantization Index Modulation (QIM) of the host image is presented in this paper. Watermark embedding is done at two stages. In the first stage, Discrete Cosine Transform (DCT) of odd description of the host image is computed. The watermark image is embedded in the resulting DC coefficients. In the second stage, a copy of the watermark image is embedded in the watermarked image generated at the first stage. This enables us to achieve robustness to both local and global attacks. This algorithm is highly robust for different attacks on the watermarked image and superior in terms of Peak Signal to Noise Ratio (PSNR) and Normalized Cross correlation (NC).
Keywords
- Digital watermarking
- Discrete Cosine Transform
- Multiple Descriptions
- Peak Signal to Noise Ratio
How to Cite
Chandra Mohan B and Srinivas Kumar S., "Robust Multiple Image Watermarking Schemeusing Discrete Cosine Transform with Multiple Descriptions," International Journal of Computer Theory and Engineering, vol. 1, no. 5, pp. 527-532, 2009. https://doi.org/10.7763/IJCTE.2009.V1.85
Copyright & License
Copyright © 2009 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).