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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 67, Iss. 11 — Nov. 1, 1977
  • pp: 1494–1501

Scotopic luminosity function and color-mixture data

Homer B. Tilton  »View Author Affiliations

JOSA, Vol. 67, Issue 11, pp. 1494-1501 (1977)

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The hypothesis that rods contribute to color information has not been generally accepted primarily because of the apparent lack of a connection between the scotopic luminosity function and color-mixture data. We present analyses showing that the scotopic luminosity function is intimately related to color data over the entire spectrum, indicating that rods play a central role in normal color vision. These results, not readily explainable in terms of the trichromatic theory, suggest an alternate idea of sensing in terms of the psychophysical quantities called brightness, hue, and saturation.

© 1977 Optical Society of America

Homer B. Tilton, "Scotopic luminosity function and color-mixture data," J. Opt. Soc. Am. 67, 1494-1501 (1977)

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