The week's pick
Reseach Article
Color Image Watermarking using DWT and DCT Coefficients of R, G, B Color Components
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 50 - Number 8 |
| Year of Publication: 2012 |
| Authors: R. Eswaraiah, Sai Alekya Edara, E. Sreenivasa Reddy and |
10.5120/7794-0904
|
R. Eswaraiah, Sai Alekya Edara, E. Sreenivasa Reddy and . Color Image Watermarking using DWT and DCT Coefficients of R, G, B Color Components. International Journal of Computer Applications. 50, 8 ( July 2012), 38-41. DOI=10.5120/7794-0904
Abstract
Digital image watermarking is the technology used to protect copy right information of multimedia objects. This paper presents a more secure method for copyright protection. In this scheme color image is decomposed into R, G, B channels and then DWT and DCT transformations are applied on these channels separately. The bits of watermark image are embedded into middle frequency coefficients of transformed R, G, B channels. Results reveal the performance of proposed algorithm using the metrics Peak Signal to Noise Ratio and Normalized Correlation and comparison of proposed scheme with the existing methods which used DWT-DCT transformations.
References
- Manik Mondal, Debalina Barik, vol. 2, no. 1, pp. 24-27, Jan 2012. "Spatial domain robust watermarking scheme for color image," International Journal of Advanced Computer Science.
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- Zheng Chaomei, Li Yuan, vol. 3, pp. 1690-1694, December 2011. "A blind watermarking algorithm based on DCT for dual color images," International Conference on Computer Science and Network Technology.
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- Cheng-qun Yin, Li Li, An-qiang Lv and Li Qu, pp. 2607-2611, August 2007. "Color image watermarking algorithm based on DWT-SVD," Proceedings of the IEEE International Conference on Automation and Logistics.
- Baisa L. Gunjal, Suresh N. Mali, vol. 1, no. 3, pp. 36-44, August 2011. "Secured color image watermarking technique in DWT -DCT domain," International Journal of Computer Science Engineering and Information Technology (IJCSEIT).
- Santhi. V, Arunkumar Thangavelu, vol. 3, no. 1, February 2011. "DC coefficients based watermarking technique for color images using singular value decomposition," International Journal of Computer and Electrical Engineering.
- Santhi. V, Rekha. N, Tharini. S, "A hybrid block based watermarking algorithm using DWT-DCT-SVD techniques for color images".
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