Enhancing the security of high payload image steganography using chaos

One of the biggest technological events of the last two decades is the use of digital media in every aspect of daily life. Digital data can be stored efficiently in a very high quality format, and it can be manipulated very easily using computers. Digital image is one of the most popular digital mul...

Full description

Saved in:

Bibliographic Details
Main Author:	Moieni, Rezza
Format:	Thesis
Language:	English
Published:	2013
Subjects:	Unspecified
Online Access:	http://eprints.utm.my/id/eprint/33155/1/RezzaMoieniMFC2013.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-utm-ep.33155
record_format	uketd_dc
spelling	my-utm-ep.331552017-06-19T08:05:07Z Enhancing the security of high payload image steganography using chaos 2013 Moieni, Rezza Unspecified One of the biggest technological events of the last two decades is the use of digital media in every aspect of daily life. Digital data can be stored efficiently in a very high quality format, and it can be manipulated very easily using computers. Digital image is one of the most popular digital multimedia data types. Furthermore, digital data can be transmitted in a fast and inexpensive way through data communication networks without losing quality. One of main concerns of these transmissions is security. To overcome this concern and security issues, steganography is one of main techniques that can provide confidentiality. Many steganography algorithms have been proposed. Each of them has its own drawbacks and advantages as well. LSB based technique in spatial domain is one of steganography techniques. Encryption can be simultaneously applied with steganography to increase the confidentiality of data. Among various techniques, chaos based encryption has attracted a lot of research and study due to good characteristics of the chaos systems. Yet, in order to transmit an image in a reasonable amount of time, some techniques must be incorporated to reduce the image’s file size. Jpeg2000 is a welldeveloped image compression technique that can be utilized for this purpose. The common problem of image steganography is the need for imperceptibility for large amount of data. To overcome this problem, this project proposed a technique, S-UCLA (Steganography Using Compression and Lorenz Algorithms). S-UCLA combines KAMLA steganography technique with Lorenz chaotic map encryption and Jpeg2000 compression. The results show better imperceptibility can be obtained in comparison to KAMLA algorithm as PSNR and entropy has improved. Also the histogram for S-UCLA is smoother than KAMLA which showed better confusion and thus can be considered as providing higher confidentiality 2013 Thesis http://eprints.utm.my/id/eprint/33155/ http://eprints.utm.my/id/eprint/33155/1/RezzaMoieniMFC2013.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:79672?queryType=vitalDismax&query=Enhancing+the+security+of+high+payload+image+steganography+using+chaos&public=true 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	Unspecified
spellingShingle	Unspecified Moieni, Rezza Enhancing the security of high payload image steganography using chaos
description	One of the biggest technological events of the last two decades is the use of digital media in every aspect of daily life. Digital data can be stored efficiently in a very high quality format, and it can be manipulated very easily using computers. Digital image is one of the most popular digital multimedia data types. Furthermore, digital data can be transmitted in a fast and inexpensive way through data communication networks without losing quality. One of main concerns of these transmissions is security. To overcome this concern and security issues, steganography is one of main techniques that can provide confidentiality. Many steganography algorithms have been proposed. Each of them has its own drawbacks and advantages as well. LSB based technique in spatial domain is one of steganography techniques. Encryption can be simultaneously applied with steganography to increase the confidentiality of data. Among various techniques, chaos based encryption has attracted a lot of research and study due to good characteristics of the chaos systems. Yet, in order to transmit an image in a reasonable amount of time, some techniques must be incorporated to reduce the image’s file size. Jpeg2000 is a welldeveloped image compression technique that can be utilized for this purpose. The common problem of image steganography is the need for imperceptibility for large amount of data. To overcome this problem, this project proposed a technique, S-UCLA (Steganography Using Compression and Lorenz Algorithms). S-UCLA combines KAMLA steganography technique with Lorenz chaotic map encryption and Jpeg2000 compression. The results show better imperceptibility can be obtained in comparison to KAMLA algorithm as PSNR and entropy has improved. Also the histogram for S-UCLA is smoother than KAMLA which showed better confusion and thus can be considered as providing higher confidentiality
format	Thesis
qualification_level	Master's degree
author	Moieni, Rezza
author_facet	Moieni, Rezza
author_sort	Moieni, Rezza
title	Enhancing the security of high payload image steganography using chaos
title_short	Enhancing the security of high payload image steganography using chaos
title_full	Enhancing the security of high payload image steganography using chaos
title_fullStr	Enhancing the security of high payload image steganography using chaos
title_full_unstemmed	Enhancing the security of high payload image steganography using chaos
title_sort	enhancing the security of high payload image steganography using chaos
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/33155/1/RezzaMoieniMFC2013.pdf
_version_	1747816092780199936

Enhancing the security of high payload image steganography using chaos

Similar Items