Abstract
Color discrimination was measured by the method of constant stimuli at eight points along a blue to red continuum. The standard deviations of judgments of color difference were used as the measure of discrimination. In terms of ratios of luminances of the components, the sensitivity throughout most of the purple region is relatively constant. There is some decrease in sensitivity at the blue extreme and a larger decrease at the red end. The results are plotted on a CIE x, y chromaticity diagram and compared with similar data of other authors.
© 1964 Optical Society of America
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