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Color Image Watermarking using DWT and DCT Coefficients of R, G, B Color Components

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International Journal of Computer Applications
© 2012 by IJCA Journal
Volume 50 - Number 8
Year of Publication: 2012
Authors:
R. Eswaraiah
Sai Alekya Edara
E. Sreenivasa Reddy
10.5120/7794-0904

R Eswaraiah, Sai Alekya Edara and Sreenivasa Reddy E and. Article: Color Image Watermarking using DWT and DCT Coefficients of R, G, B Color Components. International Journal of Computer Applications 50(8):38-41, July 2012. Full text available. BibTeX

@article{key:article,
	author = {R. Eswaraiah and Sai Alekya Edara and E. Sreenivasa Reddy and},
	title = {Article: Color Image Watermarking using DWT and DCT Coefficients of R, G, B Color Components},
	journal = {International Journal of Computer Applications},
	year = {2012},
	volume = {50},
	number = {8},
	pages = {38-41},
	month = {July},
	note = {Full text available}
}

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

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