Perceptually inspired gamut mapping between any gamuts with any intersection

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• dc.contributor.author Bertalmío, Marceloca
• dc.contributor.author Vazquez-Corral, Javierca
• dc.date.accessioned 2017-05-02T08:35:12Z
• dc.date.available 2017-05-02T08:35:12Z
• dc.date.issued 2015
• dc.description Comunicació presentada a la AIC 2015 Tokyo Midterm Meeting, celebrada a Tòquio (Japó) del 19 a 22 de maig de 2015.
• dc.description.abstract Gamut mapping transforms the color of an input image within the range of a target device. A huge amount of research has been devoted to two subproblems that arise from this general one: gamut reduction and gamut extension. Gamut reduction algorithms convert the input image to a new gamut that fits inside the one of the image , i.e. the gamuts’ intersection is equal to the target gamut, while gamut extension algorithms convert the input image to a gamut that embodies the original image gamut, i.e. the gamuts’ intersection is equal to the source gamut. In contrast to the two aforementioned cases, very little attention has been paid to the most general problem, where the intersection of source and target gamut is not equal to one of the two gamuts. In this paper we address this most general problem of gamut mapping between any two gamuts presenting any possible intersection. To deal with this problem we unify the gamut extension and gamut reduction algorithms presented in Zamir –et al- (Zamir 2014), which are based in the perceptually inspired variational framework of Bertalmío –et al- (Bertalmío 2007) that presents three competing terms; an attachment to the original data, a term for not-modifying the perchannel image mean (i.e. not modifying the white point), and a contrast enhancement term. In particular, in this paper we show how by defining a smooth transition on the contrast enhancement parameter over the chromaticity diagram we can simultaneously reduce the input gamut in some chromatic areas while increasing it in some other without introducing neither color artifacts nor halos.
• dc.description.sponsorship This work was supported by the European Research Council, Starting Grant ref.306337, by the Spanish Government, grant red.TIN2012-38112, and by the Icrea Academia Award.
• dc.format.mimetype application/pdfca
• dc.identifier.citation Vazquez-Corral J, Bertalmío M. Perceptually inspired gamut mapping between any gamuts with any intersection. Paper presented at: AIC 2015 Tokyo Midterm Meeting;2015 May 19-22; Tokyo, Japan.
• dc.identifier.uri http://hdl.handle.net/10230/32080
• dc.language.iso eng
• dc.publisher Color Science Association of Japan (CSAJ)ca
• dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/306337
• dc.relation.projectID info:eu-repo/grantAgreement/ES/3PN/TIN2012-38112
• dc.rights © Color Science Association of Japan (CSAJ)
• dc.rights.accessRights info:eu-repo/semantics/openAccess
• dc.subject.other Imatges -- Processament
• dc.title Perceptually inspired gamut mapping between any gamuts with any intersectionca
• dc.type info:eu-repo/semantics/conferenceObject
• dc.type.version info:eu-repo/semantics/acceptedVersion