Improved Watermarking Scheme Using Decimal Sequences

This thesis improves upon the work carried out by Mandhani on decimal sequence watermarking showing that the embedding and decoding algorithms used by Mandhani are not robust. We next specify improvements to these algorithms so that the peak signal to noise ratio (PSNR) is maximized and the distorti...

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Main Author:	Ashfaq, Naveed Shaik
Other Authors:	Subhash Kak
Format:	Others
Language:	en
Published:	LSU 2005
Subjects:	Electrical & Computer Engineering
Online Access:	http://etd.lsu.edu/docs/available/etd-04082005-125138/

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spelling	ndltd-LSU-oai-etd.lsu.edu-etd-04082005-1251382013-01-07T22:49:48Z Improved Watermarking Scheme Using Decimal Sequences Ashfaq, Naveed Shaik Electrical & Computer Engineering This thesis improves upon the work carried out by Mandhani on decimal sequence watermarking showing that the embedding and decoding algorithms used by Mandhani are not robust. We next specify improvements to these algorithms so that the peak signal to noise ratio (PSNR) is maximized and the distortion introduced in the image due to the embedding is minimized. By exploiting the cross correlation property of decimal sequences, the concept of embedding more than one watermark in the same cover image has been investigated. A comparison between the PSNRs for decimal sequence watermarking and other pseudorandom sequences has been made. Subhash Kak Xue-Bin Liang Suresh Rai LSU 2005-04-08 text application/pdf http://etd.lsu.edu/docs/available/etd-04082005-125138/ http://etd.lsu.edu/docs/available/etd-04082005-125138/ en unrestricted I hereby certify that, if appropriate, I have obtained and attached herein a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to LSU or its agents the non-exclusive license to archive and make accessible, under the conditions specified below and in appropriate University policies, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.
collection	NDLTD
language	en
format	Others
sources	NDLTD
topic	Electrical & Computer Engineering
spellingShingle	Electrical & Computer Engineering Ashfaq, Naveed Shaik Improved Watermarking Scheme Using Decimal Sequences
description	This thesis improves upon the work carried out by Mandhani on decimal sequence watermarking showing that the embedding and decoding algorithms used by Mandhani are not robust. We next specify improvements to these algorithms so that the peak signal to noise ratio (PSNR) is maximized and the distortion introduced in the image due to the embedding is minimized. By exploiting the cross correlation property of decimal sequences, the concept of embedding more than one watermark in the same cover image has been investigated. A comparison between the PSNRs for decimal sequence watermarking and other pseudorandom sequences has been made.
author2	Subhash Kak
author_facet	Subhash Kak Ashfaq, Naveed Shaik
author	Ashfaq, Naveed Shaik
author_sort	Ashfaq, Naveed Shaik
title	Improved Watermarking Scheme Using Decimal Sequences
title_short	Improved Watermarking Scheme Using Decimal Sequences
title_full	Improved Watermarking Scheme Using Decimal Sequences
title_fullStr	Improved Watermarking Scheme Using Decimal Sequences
title_full_unstemmed	Improved Watermarking Scheme Using Decimal Sequences
title_sort	improved watermarking scheme using decimal sequences
publisher	LSU
publishDate	2005
url	http://etd.lsu.edu/docs/available/etd-04082005-125138/
work_keys_str_mv	AT ashfaqnaveedshaik improvedwatermarkingschemeusingdecimalsequences
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Improved Watermarking Scheme Using Decimal Sequences

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