NDLI: Watermark: from paper texture to digital media

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Watermark: from paper texture to digital media

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Watermark: from paper texture to digital media

Content Provider	IEEE Xplore Digital Library
Author	Hiary, H. Ng, K.
Copyright Year	2005
Description	Author affiliation: Sch. of Comput., Leeds Univ., UK (Hiary, H.; Ng, K.)
Abstract	Paper watermarks were invented in the 13th century in Italy for the identification of the workers, the concept continued to evolve in the digital era, to provide authentication and protection for the digital media. In this project, we are interested in digitising and extracting the graphical design of the watermark in order to create a digital version of it using various image processing operations. The digital representation can be embedded into the digital image of the content (the document) to continue its original purpose to protect the content. This project differs from other methods of watermark extraction because it uses back-lighting techniques rather than typical radioactive materials. Hence, it is safer and easier to use. Also, the developed system deals with papers with foreground interference and paper defects, while other methods deal with plain papers without any foreground interference. The software prototype consists of a set of image processing operations which enhance, filter, and extract the watermark shape, and to automatically convert it into a graphical object that can be represented in a vector format. The main purpose of this system is to enable a further level of document imaging for preservation, so that it will be accessible in a digital version. It will also allow the collection of a graphical watermark database which will provide the necessary data for authentication and copyright protection of digital media, and other domain specific studies of the watermark.
File Size	337553
File Format	PDF
ISBN	076952348X
DOI	10.1109/AXMEDIS.2005.50
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-11-30
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radioactive materials Software prototyping Filters Shape Image processing Digital images Authentication Watermarking Interference Protection
Content Type	Text
Resource Type	Article

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2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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