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Proceedings Paper

Influence of the mean luminance on the detection threshold for red-green chromatic gratings
Author(s): Juan Luis Nieves Gomez; E. Valero; Javier Hernandez-Andres; Jose Antonio Garcia; Javier Romero
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Paper Abstract

The objective of the study was to examine the influence of the mean luminance level on the detection thresholds for red-green chromatic gratings of three different spatial frequencies. Data for chromatic sinusoidal gratings with higher mean luminance levels (within the photopic level) than those ones used in previous works were reported. The study analyzed the transition luminance between the DeVries- Rose law and the Weber law regions, and considered the validity of the constant-flux hypothesis for the three spatial frequencies tested. The results suggest that the 'flux' would not be a critical factor in the processing of chromatic gratings in the low spatial frequency range.

Paper Details

Date Published: 6 June 2002
PDF: 4 pages
Proc. SPIE 4421, 9th Congress of the International Colour Association, (6 June 2002); doi: 10.1117/12.464582
Show Author Affiliations
Juan Luis Nieves Gomez, Univ. de Granada (Spain)
E. Valero, Univ. de Granada (Spain)
Javier Hernandez-Andres, Univ. de Granada (Spain)
Jose Antonio Garcia, Univ. de Granada (Spain)
Javier Romero, Univ. de Granada (Spain)


Published in SPIE Proceedings Vol. 4421:
9th Congress of the International Colour Association

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