NDLI: Image colour quantization using competitive learning

Content Provider	IEEE Xplore Digital Library
Author	McNeill, D.K.
Copyright Year	2002
Description	Author affiliation: Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man., Canada (McNeill, D.K.)
Abstract	The display of full colour images on devices with limited colour capabilities requires the mapping of the true colour information of an image on to a restricted colour palette. This palette, or colour table, generally consists of a limited number of elements which must be used to represent all colours within an image. Selecting an appropriate subset of colours which accurately represent the distribution of colour in the original image is not a trivial task. We explore the use of competitive learning for the selection of an image's colour table. Our results demonstrate that frequency sensitive competitive learning is capable of selecting an appropriate colour table for a given image. Also, when compared with the colour tables produced by traditional techniques, it was found that the competitive learning approach produced tables with improved performance in terms of reduced overall quantization error. The results reported examine colour tables of various sizes from modest tables of 256 entries down to highly restricted tables of 8 colours.
Sponsorship	Dept. Electr. & Comput. Eng. Faculty of Graduate Studies Faculty of Eng. TRLabs Internet Innovation Centre NRC Inst. Biodiagnostics APEGM IEEE Winnipeg Sec. IEEE Canada & IEEE Manitoba Hydro Vansco Electron. Bristol Aerosp. Nygard Int. Norsat
Starting Page	847
Ending Page	850
File Size	391995
Page Count	4
File Format	PDF
ISBN	0780375149
ISSN	08407789
DOI	10.1109/CCECE.2002.1013052
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-05-12
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image coding Image storage Frequency Pixel Wireless application protocol Personal digital assistants Graphics Computer networks Image processing Data compression
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Hardware and Architecture

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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