Researches in colour vision and the trichromatic theory (1913)
Abney, William de Wiveleslie, Sir, 1843-1920 · London : Longmans, Green · leaf 144
be shown on one surface, and with the other the same colour, but diluted, on another surface, so that the two can be directly compared. To the eye the only difference between the two was in the amount of dilution of the colour produced by contrast ; otherwise they appeared absolutely identical. An… … Fig. 41. beam illuminated the white surface a as well. When the white beam was also thrown on another cube a foot away it was practicable to form an idea of the colour of a. The effect was curious and interesting. When the black band b
Color Perception · Color blindness · Color vision
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