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Reseach Article

A Novel Image Watermarking Scheme using Hybrid DWT-DCT-ELM Technique

by Anurag Mishra, Amita Goel
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 98 - Number 18
Year of Publication: 2014
Authors: Anurag Mishra, Amita Goel
10.5120/17285-7784

Anurag Mishra, Amita Goel . A Novel Image Watermarking Scheme using Hybrid DWT-DCT-ELM Technique. International Journal of Computer Applications. 98, 18 ( July 2014), 28-33. DOI=10.5120/17285-7784

@article{ 10.5120/17285-7784,
author = { Anurag Mishra, Amita Goel },
title = { A Novel Image Watermarking Scheme using Hybrid DWT-DCT-ELM Technique },
journal = { International Journal of Computer Applications },
issue_date = { July 2014 },
volume = { 98 },
number = { 18 },
month = { July },
year = { 2014 },
issn = { 0975-8887 },
pages = { 28-33 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume98/number18/17285-7784/ },
doi = { 10.5120/17285-7784 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T22:26:33.054179+05:30
%A Anurag Mishra
%A Amita Goel
%T A Novel Image Watermarking Scheme using Hybrid DWT-DCT-ELM Technique
%J International Journal of Computer Applications
%@ 0975-8887
%V 98
%N 18
%P 28-33
%D 2014
%I Foundation of Computer Science (FCS), NY, USA
Abstract

We propose a novel gray scale image watermarking scheme using hybrid DCT-DWT transform. The low frequency band coefficients are selected and the dataset of size 256*7 prepared using these coefficients is supplied to a newly developed simple layer feed forward network popularly known as Extreme Learning Machine (ELM). The ELM produces a normalized column vector of size 256*1 which is used as watermark sequence to be embedded in the low frequency coefficients. The DWT-DCT hybrid transform is supposed to produce better results for imperceptibility criteria. Five different image processing attacks are carried out over signed images. Watermarks are extracted successfully from signed and attacked images. Time complexity calculation indicates that the watermarking scheme is completely executed within seconds which makes it suitable for real time watermarking applications. .

References
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Index Terms

Computer Science
Information Sciences

Keywords

Discrete wavelet transforms (DWT) Extreme Learning Machine (ELM) Similarity Correlation Normalized Correlation Peak Signal Noise Ratio (PSNR) SSIM