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Reseach Article

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

by R. Eswaraiah, Sai Alekya Edara, E. Sreenivasa Reddy and
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

@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 },
issue_date = { July 2012 },
volume = { 50 },
number = { 8 },
month = { July },
year = { 2012 },
issn = { 0975-8887 },
pages = { 38-41 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume50/number8/7794-0904/ },
doi = { 10.5120/7794-0904 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:47:47.679893+05:30
%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
%J International Journal of Computer Applications
%@ 0975-8887
%V 50
%N 8
%P 38-41
%D 2012
%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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Index Terms

Computer Science
Information Sciences

Keywords

Discrete Wavelet Transform (DWT) Discrete Cosine Transform (DCT) Peak Signal to Noise Ratio (PSNR) Normalized Correlation (NC)