The Weber fraction and asymmetries in luminance thresholds

descriptionPublicationkeyboard_double_arrow_right Article 27 Aug 2002 English Publisher:WileyJournal:Color Research & Application, volume 27, pages 330-334 (issn: 0361-2317, eissn: 1520-6378,

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Authors: Fernando Carreño; Jesús Manuel Zoido;

doi: 10.1002/col.10079

The Weber fraction and asymmetries in luminance thresholds

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Abstract

AbstractPresented in this article is a method for the determination of the Weber fraction by analyzing data obtained from color‐matching experiments. The method is based on a rigorous analysis of the probability density function derived from discrimination judgments made in the xyY space. Analysis shows the thresholds for luminance increments and decrements are shown to be different and asymmetric and the Weber fraction to depend on the target's level of luminance and chromaticity. © 2002 Wiley Periodicals, Inc. Col Res Appl, 27, 330–334, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/col.10079

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Complutense University of Madrid
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