56188 20190709135419.0 doi 10.1007/s11042-015-3036-0 sideral 92871 ART-2017-92871 eng (orcid)0000-0003-0060-7278 Masia, B. Universidad de Zaragoza Dynamic range expansion based on image statistics 2017 Access copy available to the general public Unrestricted As 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. info:eu-repo/grantAgreement/ES/MINECO/Lightslice info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 1.541 2017 COMPUTER SCIENCE, SOFTWARE ENGINEERING 42 / 104 = 0.404 2017 Q2 T2 COMPUTER SCIENCE, THEORY & METHODS 43 / 103 = 0.417 2017 Q2 T2 ENGINEERING, ELECTRICAL & ELECTRONIC 151 / 260 = 0.581 2017 Q3 T2 COMPUTER SCIENCE, INFORMATION SYSTEMS 84 / 148 = 0.568 2017 Q3 T2 0.287 2017 Computer Networks and Communications 2017 Q2 Hardware and Architecture 2017 Q2 Media Technology 2017 Q2 Software 2017 Q3 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0002-7796-3177 Serrano, A. Universidad de Zaragoza (orcid)0000-0002-7503-7022 Gutierrez, D. Universidad de Zaragoza 5007 570 Universidad de Zaragoza Dpto. Informát.Ingenie.Sistms. Área Lenguajes y Sistemas Inf. 76, 1 (2017), 631-648 Multimed. Tools Appl. MULTIMEDIA TOOLS AND APPLICATIONS 1380-7501 4639887 http://zaguan.unizar.es/record/56188/files/texto_completo.pdf Postprint 60433 http://zaguan.unizar.es/record/56188/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:56188 articulos driver 2019-07-09-11:25:29 ARTICLE