Ewald Hering und die Gegenfarbtheorie |
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Authors: | Michael Busse Änne Bäumer-Schleinkofer |
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Affiliation: | 1. Institut für Zoologie III, Johannes Gutenberg-Universit?t, 55099, Mainz 2. Fachbereich Mathematik Arbeitsgruppe Geschichte der Naturwissenschaften, Johannes Gutenberg-Universit?t, 55099, Mainz
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Abstract: | Ewald Hering's color-opponent-theory is still considered one of the foundations of the visual sciences. Prior to Hering, Hermann v. Helmholtz introduced a theory of color appearance, which was based primarily on the physical aspects of the stimulus. In contrast to Helmholtz, Hering's theory strongly emphasized the subject's perception of color. As a consequence, Hering considered Helmholtz' theory inadequate. Contrary to some historical accounts, he did not object to Helmholtz's three-receptor explanation for color-mixture. Instead of Helmholtz' fundamental colors red, green, and blue, Hering suggested that the colors possess opponent character: blue-yellow; red-green; and, black-white. Helmholtz, on the other hand, refused to accept Hering's theory. Finally, a student with Helmholtz, Johannes v. Kries, developed the so-called “zone-theory”, which combines both, Young-Helmholtz's and Hering's theory at different stages of the visual information processing system. |
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