Abstract

Experimental results obtained for different observers and stimuli are analyzed to study the influence of the exposure time of the test on the differential thresholds of color. Exposure times from 0.2 to 9 sec are studied. A minimum for the differential thresholds of luminance and chromaticity and for the global differential threshold is found around 1 sec.

© 1982 Optical Society of America

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References

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  1. W. Sbrolli, “Contributo allo studio della sensibilita differenziale dell’occhio,” Atti Fond. Giorgio Ronchi 2, 105–108 (1947).
  2. H. G. Sperling and C. J. Jolliffe, “Intensity-time relationship at threshold for spectral stimuli in human vision,” J. Opt. Soc. Am. 55, 191–199 (1965).
    [Crossref]
  3. M. H. Siegel, “Color discrimination as a function of exposure time,” J. Opt. Soc. Am. 55, 566–568 (1965).
    [Crossref]
  4. H. Wright, “Temporal factors in color-difference judgments,” J. Opt. Soc. Am. 56, 588(A) (1966).
    [Crossref]
  5. D. Regan and C. W. Tyler, “Temporal summation and its limit for wavelength changes: an analog of Bloch’s law for color vision,” J. Opt. Soc. Am. 61, 1414–1421 (1971).
    [Crossref] [PubMed]
  6. L. Ronchi, S. Stefanacci, and L. Barca, “Absolute threshold for small and large stimuli of variable duration and spectral composition,” Atti Fond. Giorgio Ronchi 30, 416–424 (1975).
  7. E. Hita, L. Jimenez del Barco, R. Martinez, and E. Jimenez, “Variación de los umbrales diferenciales de luminancia con el tiempo de exposición,” Opt. Pura Aplic. 13, 91–96 (1980).
  8. E. Hita, M. Alvarez-Claro, G. Pardo, and E. Jimenez, “Influencia del metamerismo y tipo de fusión de primaries en los umbrales diferenciales de color,” Opt. Pur. Apl. 9, 53–60 (1976).
  9. E. Hita, E. Jimenez, and M. Alvarez-Claro, “Color discrimination from isomeric matching and different types of primaries fusion,” Atti Fond. Giorgío Ronchi 34, 718–727 (1979).
  10. J. Juan, “Variación de la transmitancia espectral y del color de vidrios al cambiar la temperatura,” Opt. Pura Aplic. 7, 55–59 (1974).
  11. G. Wyszecki, “Propagation of errors in colorimetric transformations,” J. Opt. Soc. Am. 49, 389–393 (1959).
    [Crossref]
  12. E. Hita, M. Alvarez-Claro, and M. Guerrero, “Differential thresholds representation of color,” Atti Fond. Giorgio Ronchi 32, 882–893 (1977).
  13. P. A. Macdonald and J. F. Allen, “The psychophysical law. I. The sense of vision,” Philos. Mag. 9, 817–827 (1930).

1980 (1)

E. Hita, L. Jimenez del Barco, R. Martinez, and E. Jimenez, “Variación de los umbrales diferenciales de luminancia con el tiempo de exposición,” Opt. Pura Aplic. 13, 91–96 (1980).

1979 (1)

E. Hita, E. Jimenez, and M. Alvarez-Claro, “Color discrimination from isomeric matching and different types of primaries fusion,” Atti Fond. Giorgío Ronchi 34, 718–727 (1979).

1977 (1)

E. Hita, M. Alvarez-Claro, and M. Guerrero, “Differential thresholds representation of color,” Atti Fond. Giorgio Ronchi 32, 882–893 (1977).

1976 (1)

E. Hita, M. Alvarez-Claro, G. Pardo, and E. Jimenez, “Influencia del metamerismo y tipo de fusión de primaries en los umbrales diferenciales de color,” Opt. Pur. Apl. 9, 53–60 (1976).

1975 (1)

L. Ronchi, S. Stefanacci, and L. Barca, “Absolute threshold for small and large stimuli of variable duration and spectral composition,” Atti Fond. Giorgio Ronchi 30, 416–424 (1975).

1974 (1)

J. Juan, “Variación de la transmitancia espectral y del color de vidrios al cambiar la temperatura,” Opt. Pura Aplic. 7, 55–59 (1974).

1971 (1)

1966 (1)

H. Wright, “Temporal factors in color-difference judgments,” J. Opt. Soc. Am. 56, 588(A) (1966).
[Crossref]

1965 (2)

1959 (1)

1947 (1)

W. Sbrolli, “Contributo allo studio della sensibilita differenziale dell’occhio,” Atti Fond. Giorgio Ronchi 2, 105–108 (1947).

1930 (1)

P. A. Macdonald and J. F. Allen, “The psychophysical law. I. The sense of vision,” Philos. Mag. 9, 817–827 (1930).

Allen, J. F.

P. A. Macdonald and J. F. Allen, “The psychophysical law. I. The sense of vision,” Philos. Mag. 9, 817–827 (1930).

Alvarez-Claro, M.

E. Hita, E. Jimenez, and M. Alvarez-Claro, “Color discrimination from isomeric matching and different types of primaries fusion,” Atti Fond. Giorgío Ronchi 34, 718–727 (1979).

E. Hita, M. Alvarez-Claro, and M. Guerrero, “Differential thresholds representation of color,” Atti Fond. Giorgio Ronchi 32, 882–893 (1977).

E. Hita, M. Alvarez-Claro, G. Pardo, and E. Jimenez, “Influencia del metamerismo y tipo de fusión de primaries en los umbrales diferenciales de color,” Opt. Pur. Apl. 9, 53–60 (1976).

Barca, L.

L. Ronchi, S. Stefanacci, and L. Barca, “Absolute threshold for small and large stimuli of variable duration and spectral composition,” Atti Fond. Giorgio Ronchi 30, 416–424 (1975).

Guerrero, M.

E. Hita, M. Alvarez-Claro, and M. Guerrero, “Differential thresholds representation of color,” Atti Fond. Giorgio Ronchi 32, 882–893 (1977).

Hita, E.

E. Hita, L. Jimenez del Barco, R. Martinez, and E. Jimenez, “Variación de los umbrales diferenciales de luminancia con el tiempo de exposición,” Opt. Pura Aplic. 13, 91–96 (1980).

E. Hita, E. Jimenez, and M. Alvarez-Claro, “Color discrimination from isomeric matching and different types of primaries fusion,” Atti Fond. Giorgío Ronchi 34, 718–727 (1979).

E. Hita, M. Alvarez-Claro, and M. Guerrero, “Differential thresholds representation of color,” Atti Fond. Giorgio Ronchi 32, 882–893 (1977).

E. Hita, M. Alvarez-Claro, G. Pardo, and E. Jimenez, “Influencia del metamerismo y tipo de fusión de primaries en los umbrales diferenciales de color,” Opt. Pur. Apl. 9, 53–60 (1976).

Jimenez, E.

E. Hita, L. Jimenez del Barco, R. Martinez, and E. Jimenez, “Variación de los umbrales diferenciales de luminancia con el tiempo de exposición,” Opt. Pura Aplic. 13, 91–96 (1980).

E. Hita, E. Jimenez, and M. Alvarez-Claro, “Color discrimination from isomeric matching and different types of primaries fusion,” Atti Fond. Giorgío Ronchi 34, 718–727 (1979).

E. Hita, M. Alvarez-Claro, G. Pardo, and E. Jimenez, “Influencia del metamerismo y tipo de fusión de primaries en los umbrales diferenciales de color,” Opt. Pur. Apl. 9, 53–60 (1976).

Jimenez del Barco, L.

E. Hita, L. Jimenez del Barco, R. Martinez, and E. Jimenez, “Variación de los umbrales diferenciales de luminancia con el tiempo de exposición,” Opt. Pura Aplic. 13, 91–96 (1980).

Jolliffe, C. J.

Juan, J.

J. Juan, “Variación de la transmitancia espectral y del color de vidrios al cambiar la temperatura,” Opt. Pura Aplic. 7, 55–59 (1974).

Macdonald, P. A.

P. A. Macdonald and J. F. Allen, “The psychophysical law. I. The sense of vision,” Philos. Mag. 9, 817–827 (1930).

Martinez, R.

E. Hita, L. Jimenez del Barco, R. Martinez, and E. Jimenez, “Variación de los umbrales diferenciales de luminancia con el tiempo de exposición,” Opt. Pura Aplic. 13, 91–96 (1980).

Pardo, G.

E. Hita, M. Alvarez-Claro, G. Pardo, and E. Jimenez, “Influencia del metamerismo y tipo de fusión de primaries en los umbrales diferenciales de color,” Opt. Pur. Apl. 9, 53–60 (1976).

Regan, D.

Ronchi, L.

L. Ronchi, S. Stefanacci, and L. Barca, “Absolute threshold for small and large stimuli of variable duration and spectral composition,” Atti Fond. Giorgio Ronchi 30, 416–424 (1975).

Sbrolli, W.

W. Sbrolli, “Contributo allo studio della sensibilita differenziale dell’occhio,” Atti Fond. Giorgio Ronchi 2, 105–108 (1947).

Siegel, M. H.

Sperling, H. G.

Stefanacci, S.

L. Ronchi, S. Stefanacci, and L. Barca, “Absolute threshold for small and large stimuli of variable duration and spectral composition,” Atti Fond. Giorgio Ronchi 30, 416–424 (1975).

Tyler, C. W.

Wright, H.

H. Wright, “Temporal factors in color-difference judgments,” J. Opt. Soc. Am. 56, 588(A) (1966).
[Crossref]

Wyszecki, G.

Atti Fond. Giorgio Ronchi (3)

W. Sbrolli, “Contributo allo studio della sensibilita differenziale dell’occhio,” Atti Fond. Giorgio Ronchi 2, 105–108 (1947).

L. Ronchi, S. Stefanacci, and L. Barca, “Absolute threshold for small and large stimuli of variable duration and spectral composition,” Atti Fond. Giorgio Ronchi 30, 416–424 (1975).

E. Hita, M. Alvarez-Claro, and M. Guerrero, “Differential thresholds representation of color,” Atti Fond. Giorgio Ronchi 32, 882–893 (1977).

Atti Fond. Giorgío Ronchi (1)

E. Hita, E. Jimenez, and M. Alvarez-Claro, “Color discrimination from isomeric matching and different types of primaries fusion,” Atti Fond. Giorgío Ronchi 34, 718–727 (1979).

J. Opt. Soc. Am. (5)

Opt. Pur. Apl. (1)

E. Hita, M. Alvarez-Claro, G. Pardo, and E. Jimenez, “Influencia del metamerismo y tipo de fusión de primaries en los umbrales diferenciales de color,” Opt. Pur. Apl. 9, 53–60 (1976).

Opt. Pura Aplic. (2)

E. Hita, L. Jimenez del Barco, R. Martinez, and E. Jimenez, “Variación de los umbrales diferenciales de luminancia con el tiempo de exposición,” Opt. Pura Aplic. 13, 91–96 (1980).

J. Juan, “Variación de la transmitancia espectral y del color de vidrios al cambiar la temperatura,” Opt. Pura Aplic. 7, 55–59 (1974).

Philos. Mag. (1)

P. A. Macdonald and J. F. Allen, “The psychophysical law. I. The sense of vision,” Philos. Mag. 9, 817–827 (1930).

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Figures (5)

Fig. 1
Fig. 1

Experimental device.

Fig. 2
Fig. 2

(a) Evolution of the volume of the discrimination ellipsoid (representative of the global differential threshold) as a function of the exposure time. Observer, MM. Yellow-green stimulus, solid line. Orange-pink stimulus, dashed line. (b) Evolution of the area of the principal elliptical section (representative of the chromaticity differential threshold) as a function of the exposure time. Observer, MM. Yellow-green stimulus, solid line. Orange-pink stimulus, dashed line. (c) Evolution of the Weber fraction (representative of the luminance differential threshold) as a function of the exposure time. Observer, MM. Yellow-green stimulus, solid line. Orange-pink stimulus, dashed line.

Fig. 3
Fig. 3

(a) Evolution of the volume of the discrimination ellipsoid (representative of the global differential threshold) as a function of the exposure time. Observer, RM. Yellow-green stimulus, solid line. Orange-pink stimulus, dashed line. (b) Evolution of the area of the principal elliptical section (representative of the chromaticity differential threshold) as a function of the exposure time. Observer, RM. Yellow-green stimulus, solid line. Orange-pink stimulus, dashed line. (c) Evolution of the Weber fraction (representative of the luminance differential threshold) as a function of the exposure time. Observer, RM. Yellow-green stimulus, solid line. Orange-pink stimulus, dashed line.

Fig. 4
Fig. 4

(a) Evolution of the volume of the discrimination ellipsoid (representative of the global differential threshold) as a function of the exposure time. Observer, JR. Yellow-green stimulus, solid line. Orange-pink stimulus, dashed line. (b) Evolution of the area of the principal elliptical section (representative of the chromaticity differential threshold) as a function of the exposure time. Observer, JR. Yellow-green stimulus, solid line. Orange-pink stimulus, dashed line. (c) Evolution of the Weber fraction (representative of the luminance differential threshold) as a function of the exposure time. Observer, JR. Yellow-green stimulus, solid line. Orange-pink stimulus, dashed line.

Fig. 5
Fig. 5

Example of the ellipsoids obtained (observer, RM.; exposure time, 1 sec; stimulus, orange-pink). The principal elliptical sections are represented with their semiaxes and the semiaxes of the elliptical sections located at one third and two thirds of the line connecting the central point of the ellipsoid with the extreme points of maximum and minimum luminance. Solid lines are used for the sections above the central plane; dashed lines are used for the sections below this plane.

Tables (6)

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Table 1 Centers of the Ellipsoid and Orientations of the Principal Elliptical Sectiona

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Table 2 Centers of the Ellipsoid and Orientations of the Principal Elliptical Sectiona

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Table 3 Centers of the Ellipsoid and Orientations of the Principal Elliptical Sectiona

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Table 4 Centers of the Ellipsoid and Orientations of the Principal Elliptical Sectiona

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Table 5 Centers of the Ellipsoid and Orientations of the Principal Elliptical Sectiona

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Table 6 Centers of the Ellipsoid and Orientations of the Principal Elliptical Sectiona