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Appears in Collections:Psychology Journal Articles
Peer Review Status: Refereed
Title: Luminance cues constrain chromatic blur discrimination in natural scene stimuli
Authors: Sharman, Rebecca J
McGraw, Paul V
Peirce, Jonathan W
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Keywords: colour
cue combination
Issue Date: Mar-2013
Publisher: ARVO
Citation: Sharman RJ, McGraw PV & Peirce JW (2013) Luminance cues constrain chromatic blur discrimination in natural scene stimuli, Journal of Vision, 13 (4), Art. No.: 14.
Abstract: Introducing blur into the color components of a natural scene has very little effect on its percept, whereas blur introduced into the luminance component is very noticeable.Here we quantify the dominance of luminance information in blur detection and examine a number of potential causes.We show that the interaction between chromatic and luminance information is not explained by reduced acuity or spatial resolution limitations for chromatic cues, the effective contrast of the luminance cue, or chromatic and achromatic statistical regularities in the images.Regardless of the quality of chromatic information, the visual system gives primacy to luminance signals when determining edge location. In natural viewing, luminance information appears to be specialized for detecting object boundaries while chromatic information may be used to determine surface properties.
Type: Journal Article
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Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Psychology
University of Nottingham
University of Nottingham

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