A dual-watermarking with DR code against cropping and resizing attack

Watermarking is a pattern of bits inserted into a digital image, audio or video file (digital file) that identifies the file's ownership copyright information. It is one of the techniques to discourage illegal duplication of intellectual property. However, there is still a room for improvement...

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Main Author:	Lau, Wei Khang
Format:	Thesis
Language:	English English English
Published:	2016
Subjects:	QA Mathematics QA76 Computer software
Online Access:	http://eprints.uthm.edu.my/9953/2/24p%20LAU%20WEI%20KHANG.pdf http://eprints.uthm.edu.my/9953/1/LAU%20WEI%20KHANG%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/9953/3/LAU%20WEI%20KHANG%20WATERMARK.pdf
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id	my-uthm-ep.9953
record_format	uketd_dc
spelling	my-uthm-ep.99532023-09-13T07:32:10Z A dual-watermarking with DR code against cropping and resizing attack 2016-01 Lau, Wei Khang QA Mathematics QA76 Computer software Watermarking is a pattern of bits inserted into a digital image, audio or video file (digital file) that identifies the file's ownership copyright information. It is one of the techniques to discourage illegal duplication of intellectual property. However, there is still a room for improvement for new techniques applied to digital files to withstand against cropping and resizing attack. In this Dual-watennarking with QR code project, both visible and invisible watermark are used. The proposed technique is compared with MOHANTY and HSU & WU techniques. First, visible QR code watermark is embedded into the image using LSB 7 (embed at the 7'h bit from the left of the binary number) technique. Then, the invisible QR Code watermark was embedded into image using LSB I ( embed at the I st bit from the left of the binary number) technique. The proposed technique shows the watermark can be successfully extracted when image is enlarged up to 90 percent or shrank up to 90 percent (resizing attack). If enlarging and shrinking are combined to the same watermarked image, watermark can still be extracted and scanned. Final result for cropping attack shows that watermark can be successfully extracted when image is cropped up to 36 percent. If it is more than 36 percent, watermark is extractable but can not be scanned by QR Code scanner device. Besides that, PSNR result also shows that the proposed technique DWQR is 15 percent better than HSU & WU technique 2016-01 Thesis http://eprints.uthm.edu.my/9953/ http://eprints.uthm.edu.my/9953/2/24p%20LAU%20WEI%20KHANG.pdf text en public http://eprints.uthm.edu.my/9953/1/LAU%20WEI%20KHANG%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/9953/3/LAU%20WEI%20KHANG%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Fakulti Sains Komputer dan Sistem Maklumat
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	QA Mathematics QA76 Computer software
spellingShingle	QA Mathematics QA76 Computer software Lau, Wei Khang A dual-watermarking with DR code against cropping and resizing attack
description	Watermarking is a pattern of bits inserted into a digital image, audio or video file (digital file) that identifies the file's ownership copyright information. It is one of the techniques to discourage illegal duplication of intellectual property. However, there is still a room for improvement for new techniques applied to digital files to withstand against cropping and resizing attack. In this Dual-watennarking with QR code project, both visible and invisible watermark are used. The proposed technique is compared with MOHANTY and HSU & WU techniques. First, visible QR code watermark is embedded into the image using LSB 7 (embed at the 7'h bit from the left of the binary number) technique. Then, the invisible QR Code watermark was embedded into image using LSB I ( embed at the I st bit from the left of the binary number) technique. The proposed technique shows the watermark can be successfully extracted when image is enlarged up to 90 percent or shrank up to 90 percent (resizing attack). If enlarging and shrinking are combined to the same watermarked image, watermark can still be extracted and scanned. Final result for cropping attack shows that watermark can be successfully extracted when image is cropped up to 36 percent. If it is more than 36 percent, watermark is extractable but can not be scanned by QR Code scanner device. Besides that, PSNR result also shows that the proposed technique DWQR is 15 percent better than HSU & WU technique
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Lau, Wei Khang
author_facet	Lau, Wei Khang
author_sort	Lau, Wei Khang
title	A dual-watermarking with DR code against cropping and resizing attack
title_short	A dual-watermarking with DR code against cropping and resizing attack
title_full	A dual-watermarking with DR code against cropping and resizing attack
title_fullStr	A dual-watermarking with DR code against cropping and resizing attack
title_full_unstemmed	A dual-watermarking with DR code against cropping and resizing attack
title_sort	dual-watermarking with dr code against cropping and resizing attack
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Sains Komputer dan Sistem Maklumat
publishDate	2016
url	http://eprints.uthm.edu.my/9953/2/24p%20LAU%20WEI%20KHANG.pdf http://eprints.uthm.edu.my/9953/1/LAU%20WEI%20KHANG%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/9953/3/LAU%20WEI%20KHANG%20WATERMARK.pdf
_version_	1783728974692614144

A dual-watermarking with DR code against cropping and resizing attack

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