Saturation and Luminosity in Color Vision Testing

Autor: R. D. Gunkel, M. S. Roy, R. C. Caruso
Rok vydání: 1989
Předmět:
Zdroj: Colour Vision Deficiencies IX ISBN: 9789401077156
DOI: 10.1007/978-94-009-2695-0_68
Popis: The chromagraph (Gunkel and Cogan, 1978) illustrated in Fig. 1, is an instrument which can be used to determine quickly and plot on a circular diagram the thresholds of discrimination for any or all colors. With normal subjects the threshold points outline a small more or less symmetrical area at or near the center of the circle (Fig. 2).
Databáze: OpenAIRE