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The effect of background and illumination on color identification of real, 3D objects

Allred, S.R.; Olkkonen, M.

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Authors

S.R. Allred

M. Olkkonen



Abstract

For the surface reflectance of an object to be a useful cue to object identity, judgments of its color should remain stable across changes in the object's environment. In 2D scenes, there is general consensus that color judgments are much more stable across illumination changes than background changes. Here we investigate whether these findings generalize to real 3D objects. Observers made color matches to cubes as we independently varied both the illumination impinging on the cube and the 3D background of the cube. As in 2D scenes, we found relatively high but imperfect stability of color judgments under an illuminant shift. In contrast to 2D scenes, we found that background had little effect on average color judgments. In addition, variability of color judgments was increased by an illuminant shift and decreased by embedding the cube within a background. Taken together, these results suggest that in real 3D scenes with ample cues to object segregation, the addition of a background may improve stability of color identification.

Citation

Allred, S., & Olkkonen, M. (2013). The effect of background and illumination on color identification of real, 3D objects. Frontiers in Psychology, 4, Article 821. https://doi.org/10.3389/fpsyg.2013.00821

Journal Article Type Article
Acceptance Date Oct 15, 2013
Online Publication Date Nov 11, 2013
Publication Date Nov 11, 2013
Deposit Date Nov 6, 2015
Publicly Available Date Mar 17, 2016
Journal Frontiers in Psychology
Print ISSN 1664-1078
Publisher Frontiers Media
Peer Reviewed Peer Reviewed
Volume 4
Article Number 821
DOI https://doi.org/10.3389/fpsyg.2013.00821

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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
Copyright © 2013 Allred and Olkkonen. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.





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