NDLI: JPEG2000 coded images optimization using a content-dependent approach

Content Provider	IEEE Xplore Digital Library
Author	Battiato, S. Buemi, A. Impoco, G. Mancuso, M.
Copyright Year	1975
Abstract	This paper presents a method to optimize the visual quality of JPEG2000-compressed images using an adaptive approach to assign more bits to regions in which errors are more visible, maintaining the global bit-rate unchanged. The encoder partitions the image into rectangular blocks called "tiles" to perform the compression. The proposed approach is based on the assumption that, by computing simple energy measures, it is possible to discern the most perceptually significant regions of the image and to code corresponding tiles properly. The effectiveness of the proposed algorithm depends on the accuracy of this classification that, in turn, depends on the tile's size. Experimental results show that the proposed technique yields a perceptive quality improvement of the image with no significant overhead in terms of complexity of the standard JPEG2000 encoder.
Sponsorship	IEEE Consumer Electronics Society
Starting Page	400
Ending Page	408
Page Count	9
File Size	855966
File Format	PDF
ISSN	00983063
Volume Number	48
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image coding Transform coding Image sensors Image storage Visual system Frequency Quantization Optimization methods
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Media Technology

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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