Please use this identifier to cite or link to this item: https://open.uns.ac.rs/handle/123456789/7265
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dc.contributor.authorTodorović Dejanen_US
dc.contributor.authorZdravković, Sunčicaen_US
dc.date.accessioned2019-09-30T09:00:45Z-
dc.date.available2019-09-30T09:00:45Z-
dc.date.issued2014-04-01-
dc.identifier.issn00426989en_US
dc.identifier.urihttps://open.uns.ac.rs/handle/123456789/7265-
dc.description.abstractThe snake illusion is an effect in which the lightness of target patches is strongly affected by the luminance of remote patches. One explanation is that such images are decomposed into a pattern of illumination and a pattern of reflectance, involving a classification of luminance edges into illumination and reflectance edges. Based on this decomposition, perceived reflectance is determined by discounting the illumination. A problem for this account is that image decomposition is not unique, and that different decompositions may lead to different lightness predictions. One way to rule out alternative decompositions and ensure correct predictions is to postulate that the visual system tends to classify curved luminance edges as reflectance edges rather than illumination edges. We have constructed several variations of the basic snake display in order to test the proposed curvature constraint and the more general image decomposition hypothesis. Although the results from some displays have confirmed previous findings of the effect of curvature, the general pattern of data questions the relevance of the shape of luminance edges for the determination of lightness in this class of displays. The data also argue against an image decomposition mechanism as an explanation of this effect. As an alternative, a tentative neurally based account is sketched. © 2014 Elsevier Ltd.en
dc.relation.ispartofVision Researchen
dc.titleThe roles of image decomposition and edge curvature in the 'snake' lightness illusionen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.doi10.1016/j.visres.2014.01.015-
dc.identifier.pmid97-
dc.identifier.scopus2-s2.0-84896711863-
dc.identifier.urlhttps://api.elsevier.com/content/abstract/scopus_id/84896711863-
dc.description.versionUnknownen_US
dc.relation.lastpage15en
dc.relation.firstpage1en
dc.relation.volume97en
item.grantfulltextnone-
item.fulltextNo Fulltext-
crisitem.author.deptFilozofski fakultet, Odsek za psihologiju-
crisitem.author.orcid0000-0002-3254-8551-
crisitem.author.parentorgFilozofski fakultet-
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