000056188 001__ 56188 000056188 005__ 20190709135419.0 000056188 0247_ $$2doi$$a10.1007/s11042-015-3036-0 000056188 0248_ $$2sideral$$a92871 000056188 037__ $$aART-2017-92871 000056188 041__ $$aeng 000056188 100__ $$0(orcid)0000-0003-0060-7278$$aMasia, B.$$uUniversidad de Zaragoza 000056188 245__ $$aDynamic range expansion based on image statistics 000056188 260__ $$c2017 000056188 5060_ $$aAccess copy available to the general public$$fUnrestricted 000056188 5203_ $$aAs the dynamic range of displays keeps increasing, there is a need for reverse tone mapping methods, which aim at expanding the dynamic range of legacy low dynamic range images for viewing on higher dynamic range displays. While a number of strategies have been proposed, most of them are designed for well-exposed input images and are not optimal when dealing with ill-exposed (under- or over-exposed) content. Further, this type of content is more prone to artifacts which may arise when using local methods. In this work, we build on an existing, automatic, global reverse tone mapping operator based on a gamma expansion. We improve this method by providing a new way for automatic parameter calculation from the image statistics. We show that this method yields better results across the whole range of exposures. 000056188 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/Lightslice 000056188 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/ 000056188 590__ $$a1.541$$b2017 000056188 591__ $$aCOMPUTER SCIENCE, SOFTWARE ENGINEERING$$b42 / 104 = 0.404$$c2017$$dQ2$$eT2 000056188 591__ $$aCOMPUTER SCIENCE, THEORY & METHODS$$b43 / 103 = 0.417$$c2017$$dQ2$$eT2 000056188 591__ $$aENGINEERING, ELECTRICAL & ELECTRONIC$$b151 / 260 = 0.581$$c2017$$dQ3$$eT2 000056188 591__ $$aCOMPUTER SCIENCE, INFORMATION SYSTEMS$$b84 / 148 = 0.568$$c2017$$dQ3$$eT2 000056188 592__ $$a0.287$$b2017 000056188 593__ $$aComputer Networks and Communications$$c2017$$dQ2 000056188 593__ $$aHardware and Architecture$$c2017$$dQ2 000056188 593__ $$aMedia Technology$$c2017$$dQ2 000056188 593__ $$aSoftware$$c2017$$dQ3 000056188 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion 000056188 700__ $$0(orcid)0000-0002-7796-3177$$aSerrano, A.$$uUniversidad de Zaragoza 000056188 700__ $$0(orcid)0000-0002-7503-7022$$aGutierrez, D.$$uUniversidad de Zaragoza 000056188 7102_ $$15007$$2570$$aUniversidad de Zaragoza$$bDpto. Informát.Ingenie.Sistms.$$cÁrea Lenguajes y Sistemas Inf. 000056188 773__ $$g76, 1 (2017), 631-648$$pMultimed. Tools Appl.$$tMULTIMEDIA TOOLS AND APPLICATIONS$$x1380-7501 000056188 8564_ $$s4639887$$uhttps://zaguan.unizar.es/record/56188/files/texto_completo.pdf$$yPostprint 000056188 8564_ $$s60433$$uhttps://zaguan.unizar.es/record/56188/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint 000056188 909CO $$ooai:zaguan.unizar.es:56188$$particulos$$pdriver 000056188 951__ $$a2019-07-09-11:25:29 000056188 980__ $$aARTICLE