Browse DORAS
Browse Theses
Latest Additions
Creative Commons License
Except where otherwise noted, content on this site is licensed for use under a:

Real-time registration of paper watermarks

Whelan, Paul F. and Soille, Pierre and Drimbarean, Alexandru (2001) Real-time registration of paper watermarks. Real-Time Imaging, 7 (4). p. 367. ISSN 1077-2014

Full text available as:

PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader


The aim of this article is to outline the issues involved in the application of machine vision to the automatic extraction and registration of watermarks from continuous web paper. The correct identification and localization of watermarks are key issues in paper manufacturing. As well as requiring the position of the watermark for defect detection and classification, it is necessary to insure its position on the paper prior to the cutting process. Two paper types are discussed, with and without laid and chain lines (these lines appear as a complex periodic background to the watermark and further complicate the segmentation process). We will examine both morphological and Fourier approaches to the watermark segmentation process, concentrating specifically on those images with complex backgrounds. Finally we detail a system design suitable for real-time implementation.

Item Type:Article (Published)
Uncontrolled Keywords:computer vision; image analysis; machine vision; watermarks;
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Research Initiatives and Centres > Research Institute for Networks and Communications Engineering (RINCE)
Publisher:Academic Press
Official URL:
Copyright Information:Copyright © 2001 Academic Press
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:2476
Deposited On:12 Mar 2009 14:26 by DORAS Administrator. Last Modified 26 Oct 2017 16:54

Download statistics

Archive Staff Only: edit this record