An Improved Image Steganography Scheme Based on RDWT and QR Decomposition

This paper demonstrates an improved image steganography that hides grayscale secret image into grayscale cover image using RDWT and QR decomposition. The proposed scheme made use of the human visual system (HVS) in the embedding process. Both cover and secret image are being segmented into non-overl...

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Main Authors:	Ng, Ke-Huey, Liew, Siau-Chuin, Ernawan, Ferda
Format:	Conference or Workshop Item
Language:	English
Published:	2019
Subjects:	QA75 Electronic computers. Computer science
Online Access:	http://umpir.ump.edu.my/id/eprint/28105/ http://umpir.ump.edu.my/id/eprint/28105/1/An%20Improved%20Image%20Steganography%20Scheme%20Based%20on%20RDWT%20and%20QR%20Decomposition1.pdf

id	ump-28105
recordtype	eprints
spelling	ump-281052020-03-11T03:07:58Z http://umpir.ump.edu.my/id/eprint/28105/ An Improved Image Steganography Scheme Based on RDWT and QR Decomposition Ng, Ke-Huey Liew, Siau-Chuin Ernawan, Ferda QA75 Electronic computers. Computer science This paper demonstrates an improved image steganography that hides grayscale secret image into grayscale cover image using RDWT and QR decomposition. The proposed scheme made use of the human visual system (HVS) in the embedding process. Both cover and secret image are being segmented into non-overlapping blocks with identical block size. Then, entropy values generated from every image block will be sorted from the lowest value to the highest value. The embedding process starts by embedding the secret image block with lowest entropy value into the cover image block with lowest entropy value. The process goes on until all image blocks have been embedded. Embedding secret image into cover image according to the entropy values causes differences that HVS can less likely to detect because of the small changes on image texture. The proposed scheme provides improvement in terms of imperceptibility, which gives higher values of PSNR and better image quality. 2019 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/28105/1/An%20Improved%20Image%20Steganography%20Scheme%20Based%20on%20RDWT%20and%20QR%20Decomposition1.pdf Ng, Ke-Huey and Liew, Siau-Chuin and Ernawan, Ferda (2019) An Improved Image Steganography Scheme Based on RDWT and QR Decomposition. In: 6th International Conference on Software Engineering & Computer Systems (ICSECS 2019), 25-27 September 2019 , Kuantan, Pahang, Malaysia. . (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	QA75 Electronic computers. Computer science
spellingShingle	QA75 Electronic computers. Computer science Ng, Ke-Huey Liew, Siau-Chuin Ernawan, Ferda An Improved Image Steganography Scheme Based on RDWT and QR Decomposition
description	This paper demonstrates an improved image steganography that hides grayscale secret image into grayscale cover image using RDWT and QR decomposition. The proposed scheme made use of the human visual system (HVS) in the embedding process. Both cover and secret image are being segmented into non-overlapping blocks with identical block size. Then, entropy values generated from every image block will be sorted from the lowest value to the highest value. The embedding process starts by embedding the secret image block with lowest entropy value into the cover image block with lowest entropy value. The process goes on until all image blocks have been embedded. Embedding secret image into cover image according to the entropy values causes differences that HVS can less likely to detect because of the small changes on image texture. The proposed scheme provides improvement in terms of imperceptibility, which gives higher values of PSNR and better image quality.
format	Conference or Workshop Item
author	Ng, Ke-Huey Liew, Siau-Chuin Ernawan, Ferda
author_facet	Ng, Ke-Huey Liew, Siau-Chuin Ernawan, Ferda
author_sort	Ng, Ke-Huey
title	An Improved Image Steganography Scheme Based on RDWT and QR Decomposition
title_short	An Improved Image Steganography Scheme Based on RDWT and QR Decomposition
title_full	An Improved Image Steganography Scheme Based on RDWT and QR Decomposition
title_fullStr	An Improved Image Steganography Scheme Based on RDWT and QR Decomposition
title_full_unstemmed	An Improved Image Steganography Scheme Based on RDWT and QR Decomposition
title_sort	improved image steganography scheme based on rdwt and qr decomposition
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/28105/ http://umpir.ump.edu.my/id/eprint/28105/1/An%20Improved%20Image%20Steganography%20Scheme%20Based%20on%20RDWT%20and%20QR%20Decomposition1.pdf
first_indexed	2023-09-18T22:44:04Z
last_indexed	2023-09-18T22:44:04Z
_version_	1777417106730516480

An Improved Image Steganography Scheme Based on RDWT and QR Decomposition

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