A gray-scale image steganography techmique using fibonacci 12-bitplane decomposition and LSB approach

After the great expansion of internet, communications tends to be lifeblood, at the same time data protection became more critical issue, so the need to secure transfer channel is being more urgent, this goal achieved by applying one or more of data protection techniques. Steganography one of the mo...

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Main Author:	Hamood, Sabah Fadhel
Format:	Thesis
Language:	English
Published:	2013
Subjects:	QA Mathematics
Online Access:	http://eprints.utm.my/id/eprint/34570/5/SabahFadhelHamoodMFSKSM2013.pdf
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id	my-utm-ep.34570
record_format	uketd_dc
spelling	my-utm-ep.345702017-07-23T07:15:37Z A gray-scale image steganography techmique using fibonacci 12-bitplane decomposition and LSB approach 2013-02 Hamood, Sabah Fadhel QA Mathematics After the great expansion of internet, communications tends to be lifeblood, at the same time data protection became more critical issue, so the need to secure transfer channel is being more urgent, this goal achieved by applying one or more of data protection techniques. Steganography one of the most suitable solution for this problem, due to the good specification of concealing secret file inside cover image, in such way there is nobody even suspects the existence of transferred file. The main challenge in steganography methods is how to make balance between the quality of file that will be used to conceal the secret and the size of the secret file. Also there are another factors should be considered, which are, robustness and security against attacks. In this study Fibonacci numbers have been exploited to achieve these goals. Fibonacci numbers used to decompose the cover file into 12-bitplanes instead of 8-bitplanes produced by binary decomposition, the four extra layers will increase the capacity of cover image. The resulted 12-bitplanes, has special statistical nature in terms of distribution of black regions (zero values) and white regions (one values). This statistical nature has been exploited by modifying the binary representation of secret message to make matching between the representation of secret message and cover image to reduce the impact of embedding process on the resulted file (stego-image). By applying Fibonacci decomposition to the cover image, better results have been achieved in terms of Peak Signal to Noise Ratio(PSNR) which indicates the ability of embed more secret size with maintaining the quality of stego-image, also the security and robustness has been evaluated by applying chi-square attack, the result for this attacks show that Fibonacci LSB method is withstanding for such attack. 2013-02 Thesis http://eprints.utm.my/id/eprint/34570/ http://eprints.utm.my/id/eprint/34570/5/SabahFadhelHamoodMFSKSM2013.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:69749?site_name=Restricted Repository masters Universiti Teknologi Malaysia, Faculty of Computer Science and Information System Faculty of Computer Science and Information System
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	QA Mathematics
spellingShingle	QA Mathematics Hamood, Sabah Fadhel A gray-scale image steganography techmique using fibonacci 12-bitplane decomposition and LSB approach
description	After the great expansion of internet, communications tends to be lifeblood, at the same time data protection became more critical issue, so the need to secure transfer channel is being more urgent, this goal achieved by applying one or more of data protection techniques. Steganography one of the most suitable solution for this problem, due to the good specification of concealing secret file inside cover image, in such way there is nobody even suspects the existence of transferred file. The main challenge in steganography methods is how to make balance between the quality of file that will be used to conceal the secret and the size of the secret file. Also there are another factors should be considered, which are, robustness and security against attacks. In this study Fibonacci numbers have been exploited to achieve these goals. Fibonacci numbers used to decompose the cover file into 12-bitplanes instead of 8-bitplanes produced by binary decomposition, the four extra layers will increase the capacity of cover image. The resulted 12-bitplanes, has special statistical nature in terms of distribution of black regions (zero values) and white regions (one values). This statistical nature has been exploited by modifying the binary representation of secret message to make matching between the representation of secret message and cover image to reduce the impact of embedding process on the resulted file (stego-image). By applying Fibonacci decomposition to the cover image, better results have been achieved in terms of Peak Signal to Noise Ratio(PSNR) which indicates the ability of embed more secret size with maintaining the quality of stego-image, also the security and robustness has been evaluated by applying chi-square attack, the result for this attacks show that Fibonacci LSB method is withstanding for such attack.
format	Thesis
qualification_level	Master's degree
author	Hamood, Sabah Fadhel
author_facet	Hamood, Sabah Fadhel
author_sort	Hamood, Sabah Fadhel
title	A gray-scale image steganography techmique using fibonacci 12-bitplane decomposition and LSB approach
title_short	A gray-scale image steganography techmique using fibonacci 12-bitplane decomposition and LSB approach
title_full	A gray-scale image steganography techmique using fibonacci 12-bitplane decomposition and LSB approach
title_fullStr	A gray-scale image steganography techmique using fibonacci 12-bitplane decomposition and LSB approach
title_full_unstemmed	A gray-scale image steganography techmique using fibonacci 12-bitplane decomposition and LSB approach
title_sort	gray-scale image steganography techmique using fibonacci 12-bitplane decomposition and lsb approach
granting_institution	Universiti Teknologi Malaysia, Faculty of Computer Science and Information System
granting_department	Faculty of Computer Science and Information System
publishDate	2013
url	http://eprints.utm.my/id/eprint/34570/5/SabahFadhelHamoodMFSKSM2013.pdf
_version_	1747816206614659072

A gray-scale image steganography techmique using fibonacci 12-bitplane decomposition and LSB approach

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