A robust digital image watermarking using repetition codes against common attacks

Digital watermarking is hiding the information inside a digital media to protect for such documents against malicious intentions to change such documents or even claim the rights of such documents. Currently the capability of repetition codes on various attacks in not sufficiently studied. In thi...

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Main Author:	Hassan, Abdullahi Mohamud
Format:	Thesis
Language:	English English English
Published:	2015
Subjects:	TK8300-8360 Photoelectronic devices (General)
Online Access:	http://eprints.uthm.edu.my/1258/2/ABDULLAHI%20MOHAMUD%20HASSAN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1258/1/24p%20ABDULLAHI%20MOHAMUD%20HASSAN.pdf http://eprints.uthm.edu.my/1258/3/ABDULLAHI%20MOHAMUD%20HASSAN%20WATERMARK.pdf
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id	my-uthm-ep.1258
record_format	uketd_dc
spelling	my-uthm-ep.12582021-09-30T06:48:55Z A robust digital image watermarking using repetition codes against common attacks 2015-02 Hassan, Abdullahi Mohamud TK8300-8360 Photoelectronic devices (General) Digital watermarking is hiding the information inside a digital media to protect for such documents against malicious intentions to change such documents or even claim the rights of such documents. Currently the capability of repetition codes on various attacks in not sufficiently studied. In this project, a robust frequency domain watermarking scheme has been implemented using Discrete Cosine Transform (DCT). The idea of this scheme is to embed an encoded watermark using repetition code (3, 1) inside the cover image pixels based on Discrete Cosine Transform (DCT) embedding technique. The proposed methods have undergone several simulation attacks tests in order to check up and compare their robustness against various attacks, like salt and pepper, speckle, compress, Gaussian, image contrast, resizing and cropping attack. The robustness of the watermarking scheme has been calculated using Peak Signal-To-Noise Ratio (PSNR), Mean Squared Error (MSE) and Normalized Correlations (NC). In our experiments, the results show that the robustness of a watermark with repetition codes is much better than without repetition codes 2015-02 Thesis http://eprints.uthm.edu.my/1258/ http://eprints.uthm.edu.my/1258/2/ABDULLAHI%20MOHAMUD%20HASSAN%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/1258/1/24p%20ABDULLAHI%20MOHAMUD%20HASSAN.pdf text en public http://eprints.uthm.edu.my/1258/3/ABDULLAHI%20MOHAMUD%20HASSAN%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Faculty of Computer Science and Information Tecnology
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TK8300-8360 Photoelectronic devices (General)
spellingShingle	TK8300-8360 Photoelectronic devices (General) Hassan, Abdullahi Mohamud A robust digital image watermarking using repetition codes against common attacks
description	Digital watermarking is hiding the information inside a digital media to protect for such documents against malicious intentions to change such documents or even claim the rights of such documents. Currently the capability of repetition codes on various attacks in not sufficiently studied. In this project, a robust frequency domain watermarking scheme has been implemented using Discrete Cosine Transform (DCT). The idea of this scheme is to embed an encoded watermark using repetition code (3, 1) inside the cover image pixels based on Discrete Cosine Transform (DCT) embedding technique. The proposed methods have undergone several simulation attacks tests in order to check up and compare their robustness against various attacks, like salt and pepper, speckle, compress, Gaussian, image contrast, resizing and cropping attack. The robustness of the watermarking scheme has been calculated using Peak Signal-To-Noise Ratio (PSNR), Mean Squared Error (MSE) and Normalized Correlations (NC). In our experiments, the results show that the robustness of a watermark with repetition codes is much better than without repetition codes
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Hassan, Abdullahi Mohamud
author_facet	Hassan, Abdullahi Mohamud
author_sort	Hassan, Abdullahi Mohamud
title	A robust digital image watermarking using repetition codes against common attacks
title_short	A robust digital image watermarking using repetition codes against common attacks
title_full	A robust digital image watermarking using repetition codes against common attacks
title_fullStr	A robust digital image watermarking using repetition codes against common attacks
title_full_unstemmed	A robust digital image watermarking using repetition codes against common attacks
title_sort	robust digital image watermarking using repetition codes against common attacks
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Computer Science and Information Tecnology
publishDate	2015
url	http://eprints.uthm.edu.my/1258/2/ABDULLAHI%20MOHAMUD%20HASSAN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1258/1/24p%20ABDULLAHI%20MOHAMUD%20HASSAN.pdf http://eprints.uthm.edu.my/1258/3/ABDULLAHI%20MOHAMUD%20HASSAN%20WATERMARK.pdf
_version_	1747830757929254912

A robust digital image watermarking using repetition codes against common attacks

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