Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/1486
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dc.contributorDepartment of Electronic and Information Engineering-
dc.creatorFung, YH-
dc.creatorChan, YH-
dc.date.accessioned2014-12-11T08:28:27Z-
dc.date.available2014-12-11T08:28:27Z-
dc.identifier.issn1057-7149-
dc.identifier.urihttp://hdl.handle.net/10397/1486-
dc.language.isoenen_US
dc.publisherInstitute of Electrical and Electronics Engineersen_US
dc.rights© 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_US
dc.rightsThis material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.en_US
dc.subjectColor paletteen_US
dc.subjectColor restorationen_US
dc.subjectColor quantizationen_US
dc.subjectError diffusionen_US
dc.subjectImage restorationen_US
dc.subjectInverse halftoningen_US
dc.subjectProjection onto convex sets (POCS)en_US
dc.titleA POCS-based restoration algorithm for restoring halftoned color-quantized imagesen_US
dc.typeJournal/Magazine Articleen_US
dc.description.otherinformationCentre for Multimedia Signal Processing, Department of Electronic and Information Engineeringen_US
dc.identifier.spage1985-
dc.identifier.epage1992-
dc.identifier.volume15-
dc.identifier.issue7-
dc.identifier.doi10.1109/TIP.2006.873432-
dcterms.abstractThis paper studies the restoration of images which are color-quantized with error diffusion. Though there are many reported algorithms proposed for restoring noisy blurred color images and inverse halftoning, restoration of color-quantized images is rarely addressed in the literature especially when the images are color-quantized with halftoning. Direct application of existing restoration techniques are generally inadequate to deal with this problem. In this paper, a restoration algorithm based on projection onto convex sets is proposed. This algorithm makes use of the available color palette and the mechanism of a halftoning process to derive useful a priori information for restoration. Simulation results showed that it could improve the quality of a halftoned color-quantized image remarkably in terms of both SNR and CIELAB color difference metric.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationIEEE transactions on image processing, July 2006, v. 15, no. 7, p. 1985-1992-
dcterms.isPartOfIEEE transactions on image processing-
dcterms.issued2006-07-
dc.identifier.isiWOS:000238714200024-
dc.identifier.scopus2-s2.0-33745591421-
dc.identifier.eissn1941-0042-
dc.identifier.rosgroupidr31941-
dc.description.ros2006-2007 > Academic research: refereed > Publication in refereed journal-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
dc.description.oaCategoryVoR alloweden_US
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