T H E COLOR VISION OF DICH.ROMATS II . SATURATION AS THE BASIS FOR WAVELENGTH DISCRIMINATION A~'qD COT.Og MZXTVl~ BY SELIG HECHT ~D SIMON SHLAER
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چکیده
The three variables of color vision are hue, saturat ion, and brightness. The characterist ic color differences along the spectrum which the color-normal sees are essentially concerned with hue. In measurements of wavelength discrimination the precise value of the just perceptible difference in wavelength at constant brightness is no doubt influenced by saturat ion differences, bu t the major factor is hue. Wha t determines wavelength discrimination in the colorblind? Since the best X discrimination of protanopes and deuteranopes occurs near 500 m#, which is a region matched with white, saturat ion may be a more impor tan t factor for them than for the color-normal. A simple bu t striking experiment demonstra ted to us tha t saturat ion is indeed the determining factor, x One side of the field in the I tehn-
منابع مشابه
Color Vision of Dich
The three variables of color vision are hue, saturat ion, and brightness. The characterist ic color differences along the spectrum which the color-normal sees are essentially concerned with hue. In measurements of wavelength discrimination the precise value of the just perceptible difference in wavelength at constant brightness is no doubt influenced by saturat ion differences, bu t the major f...
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