Research Article
Color Image Watermarking using DWT and DCT Coefficients of R, G, B Color Components
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
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| Volume 50 - Issue 8 |
| Published: July 2012 |
| Authors: R. Eswaraiah, Sai Alekya Edara, E. Sreenivasa Reddy And |
10.5120/7794-0904
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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
@article{ 10.5120/7794-0904,
author = { R. Eswaraiah,Sai Alekya Edara,E. Sreenivasa Reddy And },
title = { 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 },
doi = { 10.5120/7794-0904 },
publisher = { Foundation of Computer Science (FCS), NY, USA }
}
%0 Journal Article
%D 2012
%A R. Eswaraiah
%A Sai Alekya Edara
%A E. Sreenivasa Reddy And
%T Color Image Watermarking using DWT and DCT Coefficients of R, G, B Color Components%T
%J International Journal of Computer Applications
%V 50
%N 8
%P 38-41
%R 10.5120/7794-0904
%I Foundation of Computer Science (FCS), NY, USA
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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