Title: Geometry of illumination, luminance contrast, and gloss perception
Authors: Leloup, Frédéric ×
Pointer, Michael R.
Dutré, Philip
Hanselaer, Peter #
Issue Date: 18-Aug-2010
Publisher: The Society
Series Title: Journal of the Optical Society of America A, Optics, Image Science and Vision vol:27 issue:9 pages:2046-2054
Article number: 124066
Abstract: The influence of both the geometry of illumination and luminance contrast on gloss perception has been examined using the method of paired comparison. Six achromatic glass samples having different lightness were illuminated by two light sources. Only one of these light sources was visible in reflection by the observer. By separate adjustment of the intensity of both light sources, the luminance of both the reflected image and the adjacent off-specular surroundings could be individually varied. It was found that visual gloss appraisal did not correlate with instrumentally measured specular gloss; however, psychometric contrast seemed to be a much better correlate. It has become clear that not only the sample surface characteristics determine gloss perception: the illumination geometry could be an even more important factor.
ISSN: 1084-7529
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - ELECTA, Electrical Energy Computer Architectures
Informatics Section
Technologiecluster ESAT Elektrotechnische Engineering
Electrical Engineering (ESAT) TC, Technology Campuses Ghent and Aalst
× corresponding author
# (joint) last author

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