NDLI: Image hashing via hough transform

Content Provider	IEEE Xplore Digital Library
Author	Shuhua Lai Nian Zhang
Copyright Year	2012
Description	Author affiliation: School of Science & Technology in the Georgia Gwinnett College, Lawrenceville, 30043 USA (Shuhua Lai) \|\| Department of Electrical and Computer Engineering in the University of the District of Columbia, Washington, DC, 20008 USA (Nian Zhang)
Abstract	Given an image as an input, an image hash function should produce a short bit string such that the hash values are similar (if not the same) for “perceptually similar” content and significantly different for “perceptually different” content. Image hash functions find extensive applications in content authentication, database search, and watermarking. There are a lot of approaches reported for image hashing, but many of them do not perform well when the input image undergoes severe linear transformations (for example, big angle rotations or scaling with a very big or very small scaling factor). In this paper we propose a new algorithm for generating image hash values based on Hough transform. Our new approach can do well even for images with big changes. Furthermore, for anti-piracy purposes, a secret key can be added to the hash value calculation process such that the hash function has favorable security properties. Some test results obtained using this method are included and they demonstrate that the new algorithm can achieve desirable results for identifying image content.
Starting Page	1
Ending Page	4
File Size	354379
Page Count	4
File Format	PDF
ISBN	9781467331395
e-ISBN	9781467331401
e-ISBN	9781467331388
DOI	10.1109/CISS.2012.6310729
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-03-21
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	image authentication perceptual robustness image hashing Filtering Authentication Transforms Educational institutions Robustness Vectors Hough transform
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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