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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 5, Iss. 3 — Mar. 1, 1988
  • pp: 432–437

Color-prediction discrepancies and differential chromaticity thresholds with photopigment bleaching

L. Jiménez del Barco, E. Hita, J. Romero, and J. Vida  »View Author Affiliations

JOSA A, Vol. 5, Issue 3, pp. 432-437 (1988)

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The differential chromaticity thresholds of three color stimuli have been determined from metameric matches carried out during the cone-plateau period after photopigment bleaching. The results are compared with some recently published ones [ HitaE. Jiménez del BarcoL. RomeroJ., J. Opt. Soc. Am. A 3, 1203 ( 1986)] obtained under similar experimental conditions but without prior photopigment bleaching. The possible effects of rod intrusion on color-prediction discrepancies are discussed in the light of both sets of results. Under our experimental conditions, with foveal fields of 3 deg, luminance within the low photopic level, and sets of primary colors produced by filters of differing spectral bandwidth, the rod intrusion effect can be ruled out as a possible cause of color-prediction discrepancies, although it does appear to produce variations in the sizes of the discrimination ellipses and in their orientation.

© 1988 Optical Society of America

Original Manuscript: February 25, 1987
Manuscript Accepted: October 28, 1987
Published: March 1, 1988

L. Jiménez del Barco, E. Hita, J. Romero, and J. Vida, "Color-prediction discrepancies and differential chromaticity thresholds with photopigment bleaching," J. Opt. Soc. Am. A 5, 432-437 (1988)

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