NDLI: A print and scan optimized watermarking scheme

Content Provider	IEEE Xplore Digital Library
Author	Lefebvre, F. Gueluy, A. Delannay, D. Macq, B.
Copyright Year	2001
Description	Author affiliation: Lab. de Telecommun. et Teledetection, Univ. Catholique de Louvain, Belgium (Lefebvre, F.)
Abstract	We are present an algorithm for watermarking digital images with the aim of obtaining a very high quality of the watermarked image and a strong resistance to print and scan processes. We propose a method which combines an additive watermarking algorithm in the spatial domain providing resistance against cropping and exhaustive search and a synchronisation template in the Fourier domain providing resistance against geometrical deformations. The additive watermark in the spatial domain is based on an original generalized 2-D cyclic patterns for secret message embedding. The cyclic property and pattern redundancy facilitate detection and synchronisation against cropping and image processing basic attacks (like compression, filtering, blurring). This algorithm has to be complemented by a template insertion for providing resistance against rotation and scaling which are caused by the print and scan processes. We generate the template in the Fourier domain inserting some points locally. The watermark and the template are weighted by a human visual masking function. The global scheme, though very classical in its global concept, provides very efficient protection to a digital image which could be delivered both in a digital high quality format and in a printed form.
Sponsorship	IEEE Signal Process. Soc
Starting Page	511
Ending Page	516
File Size	345972
Page Count	6
File Format	PDF
ISBN	0780370252
DOI	10.1109/MMSP.2001.962784
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-10-03
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Watermarking Immune system Psychology Digital images Image coding Robustness Additives Image processing Filtering Humans
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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