The role of lightness perception in determining the perceived contrast of real world scenes

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• dc.contributor.author Kane, Davidca
• dc.contributor.author Bertalmío, Marceloca
• dc.date.accessioned 2017-03-13T08:15:44Z
• dc.date.available 2017-03-13T08:15:44Z
• dc.date.issued 2016
• dc.description Comunicació presentada al IS&T International Symposium on Electronic Imaging, celebrat del 14 al 18 de febrer de 2016 a San Francisco (CA, USA) i organitzat per la Society for Imaging Science and Technology.
• dc.description.abstract We investigate the impact of the background luminance upon the perceived image quality of real world scenes. To do so, we generate a set of small image patches that span the full range of mean luminance values and contrasts that may be displayed upon a monitor with a finite luminance range. Subjects viewed the images on a uniform black, grey or white surround and were asked to rate the perceived quality on a scale from 0 to 9. We find that that the maximum image quality scores occur for images with a mean luminance of less than half, consistent with the image being passed through a compressive non-linearity before contrast is computed. Moreover, the maximum image quality scores occur at lower mean luminance levels when the background luminance is darker, a pattern consistent with investigations into lightness perception. We conclude that models of contrast perception require an adaptive model of lightness perception. However, we also note the considerable challenge of developing a model of lightness perception that can generalize to any given display configuration.
• dc.format.mimetype application/pdfca
• dc.identifier.citation Kane D, Bertalmío M. The role of lightness perception in determining the perceived contrast of real world scenes. In: IS&T International Symposium on Electronic Imaging Science and Technology; 2016 Febr. 14-18; San Francisco (CA, USA). Springfield: IS&T; 2016. Retinex at 50, p. RETINEX-022.1 [6 p.]. DOI: 10.2352/ISSN.2470-1173.2016.6.RETINEX-022
• dc.identifier.doi http://dx.doi.org/10.2352/ISSN.2470-1173.2016.6.RETINEX-022
• dc.identifier.issn 1062-3701
• dc.identifier.uri http://hdl.handle.net/10230/28215
• dc.language.iso eng
• dc.publisher The Society for Imaging Science and Technology (IS&T)ca
• dc.relation.ispartof IS&T International Symposium on Electronic Imaging Science and Technology; 2016 Febr. 14-18; San Francisco (CA, USA). Springfield: IS&T; 2016. Retinex at 50, p. RETINEX-022.1 [6 p.].
• dc.rights © 2016 Society for Imaging Science and Technology. Reprinted with permission of IS&T: The Society for Imaging Science and Technology sole copyright owners of Electronic Imaging, Retinex at 50.
• dc.rights.accessRights info:eu-repo/semantics/openAccess
• dc.subject.other Imatges -- Processament
• dc.subject.other Comunicació visual
• dc.title The role of lightness perception in determining the perceived contrast of real world scenesca
• dc.type info:eu-repo/semantics/conferenceObject
• dc.type.version info:eu-repo/semantics/publishedVersion