University of Oulu

Benchmarking and modernizing print-cam robust watermarking methods on modern mobile phones

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Author: Pramila, Anu1
Organizations: 1University of Oulu, Faculty of Information Technology and Electrical Engineering, Department of Information Processing Science, Information Processing Science
Format: ebook
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 4.9 MB)
Persistent link: http://urn.fi/URN:NBN:fi:oulu-201504021271
Language: English
Published: Oulu : A. Pramila, 2014
Publish Date: 2015-04-09
Physical Description: 59 p.
Thesis type: Master's thesis
Tutor: Juustila, Antti
Reviewer: Tervonen, Ilkka
Juustila, Antti
Hedberg, Henrik
Description:

Abstract

Digital watermarking has generally been used for copy-‭ ‬and copyright protection,‭ ‬authentication and,‭ ‬more recently,‭ ‬value-added services.‭ ‬It has been restricted to digital world but by developing methods which are able to read a watermark from a printed image with a camera phone would enable the watermark extraction to be free of time and place.

The aim of this work was to compare print-cam robust watermarking methods and illustrate the problems that emerge when the watermarking methods are implemented on a camera phone.‭ ‬This was achieved by selecting three print-cam robust watermarking methods and implementing them on a camera phone.‭ ‬The robustness of the methods was tested and the results reported.

The obtained results showed that some changes are required to make the earliest proposed watermarking methods work on a modern camera phone.‭ ‬The robustness of the methods was in line with the intended applications as well as camera phone specifications.

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Copyright information: © Anu Pramila, 2014. This publication is copyrighted. You may download, display and print it for your own personal use. Commercial use is prohibited.