Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Equiluminance: spatial and temporal factors and the contribution of blue-sensitive cones

Not Accessible

Your library or personal account may give you access

Abstract

Equiluminance ratios for red/green, red/blue and green/blue sine-wave gratings were determined by using a minimum-motion heterochromatic matching technique that permitted reliable settings at temporal frequencies as low as 0.5 Hz. The red/green equiluminance ratio was influenced by temporal but not spatial frequency, the green/blue ratio was influenced by spatial but not temporal frequency, and the red/blue ratio was influenced by both. After bleaching of the blue-sensitive cones, there was no change in equiluminance ratios, indicating no contribution of the blue-sensitive cones to the luminance channel even at low temporal and spatial frequencies. The inhomogeneity of yellow pigmentation within the macular region was identified as the source of the spatial-frequency effect on the blue/green ratio.

© 1987 Optical Society of America

Full Article  |  PDF Article
More Like This
Comparison of red–green equiluminance points in humans and macaques: evidence for different L:M cone ratios between species

Karen R. Dobkins, Alex Thiele, and Thomas D. Albright
J. Opt. Soc. Am. A 17(3) 545-556 (2000)

Contrast adaptation dissociates different measures of luminous efficiency

Michael A. Webster and J. D. Mollon
J. Opt. Soc. Am. A 10(6) 1332-1340 (1993)

Temporal sensitivities related to color theory

D. Varner, Dorothea Jameson, and Leo M. Hurvich
J. Opt. Soc. Am. A 1(5) 474-481 (1984)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (13)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (7)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved