NDLI: Self-authentication watermark by digital halftoning

Content Provider	IEEE Xplore Digital Library
Author	Chao-Ting Su Hsi-Chun Wang
Copyright Year	2015
Description	Author affiliation: Dept. of Graphic Arts & Commun., Nat. Taiwan Normal Univ., Taipei, Taiwan (Chao-Ting Su; Hsi-Chun Wang)
Abstract	In the booming development of computer technology, countless counterfeit products are being forged in the market. Nowadays, many countries have adopted durable and high-security plastic substrates as identification cards or for product protection. The purpose of this study is to adopt digital halftoning technique to embed watermarks onto plastic substrates with self-authentication capability. By using halftoning algorithm with threshold matrices to form binary screen line microstructures with varied spaces, the watermark mask can be converted into an encrypted image via logical operations. Then the encrypted image is output on a plastic substrate. Finally, by bending and overlapping this plastic substrate, the watermark decryption and self-authentication effects can be achieved. The proposed method can be applied to many potential value-added applications and product protection.
Starting Page	1
Ending Page	6
File Size	1266236
Page Count	6
File Format	PDF
ISBN	9781479986903
ISSN	21530742
e-ISBN	9781479986910
DOI	10.1109/CCST.2015.7389709
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-09-21
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Watermarking Encryption Gratings Microstructure Authentication Gray-scale self-authentication digital halftoning watermark screen line
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
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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