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Unique Hues

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Synonyms

Focal colors

Definition

Unique hues are unmixed colors without a tint of any other colors. For example, unique yellow is a pure yellow that is not tinged by red or green. There are four unique hues: red, green, blue, and yellow.

Historical View

One can see so many different colors in the environment. And yet there are only four colors that occupy a special place in color perception. They are called unique hues and they originate from the opponent colors theory proposed by Ewald Hering in 1878 [1, 2]. The theory postulates three opponent processes: two chromatic processes of red-green and blue-yellow and one achromatic process of white-black. Unique hues are perceived when one of the two chromatic processes is polarized in one direction and the other is at equilibrium. For instance, one perceives unique red when the red-green process is polarized toward red and the blue-yellow process is at equilibrium. Phenomenologically, one can describe any color he or she sees by a mixture...

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References

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Correspondence to Eriko Miyahara Self .

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© 2013 Springer Science+Business Media New York

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Self, E.M. (2013). Unique Hues. In: Luo, R. (eds) Encyclopedia of Color Science and Technology. Springer, New York, NY. https://doi.org/10.1007/978-3-642-27851-8_74-14

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  • DOI: https://doi.org/10.1007/978-3-642-27851-8_74-14

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  • Publisher Name: Springer, New York, NY

  • Online ISBN: 978-3-642-27851-8

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Chapter history

  1. Latest

    Unique Hues
    Published:
    07 October 2014

    DOI: https://doi.org/10.1007/978-3-642-27851-8_74-14

  2. Original

    Light Distribution
    Published:
    06 October 2014

    DOI: https://doi.org/10.1007/978-3-642-27851-8_130-2