Investigating unique hues at different chroma levels with a smaller hue angle step
نویسندگان
چکیده
منابع مشابه
Hue discrimination, unique hues and naming.
The hue discrimination curve (HDC) that characterizes performances over the entire hue circle was determined by using sinusoidally modulated spectral power distributions of 1.5 c/300 nm with fixed amplitude and twelve reference phases. To investigate relationship between hue discrimination and appearance, observers further performed a free color naming and unique hue tasks. The HDC consistently...
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In this study, Swedish Natural Color System (NCS) unique hue data were used to evaluate the performance of unique hue predictions by the CIECAM02 colour appearance model. The colour appearance of 108 NCS unique hue stimuli was predicted using CIECAM02, and their distributions were represented in a CIECAM02 ac–bc chromatic diagram. The best-fitting line for each of the four unique hues was found...
متن کاملUnique Hues
One can see so many different colors in the environment. And yet there are only four colors that occupy a special place in color perception. They are called unique hues and they originate from the opponent colors theory proposed by Ewald Hering in 1878 [1, 2]. The theory postulates three opponent processes: two chromatic processes of red-green and blue-yellow and one achromatic process of white...
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When light is reflected off a surface, there is a linear relation between the three human photoreceptor responses to the incoming light and the three photoreceptor responses to the reflected light. Different colored surfaces have different linear relations. Recently, Philipona and O'Regan (2006) showed that when this relation is singular in a mathematical sense, then the surface is perceived as...
متن کاملColor naming, unique hues, and hue cancellation predicted from singularities in reflection properties.
Psychophysical studies suggest that different colors have different perceptual status: red and blue for example are thought of as elementary sensations whereas yellowish green is not. The dominant account for such perceptual asymmetries attributes them to specificities of the neuronal representation of colors. Alternative accounts involve cultural or linguistic arguments. What these accounts ha...
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ژورنال
عنوان ژورنال: Journal of the Optical Society of America A
سال: 2020
ISSN: 1084-7529,1520-8532
DOI: 10.1364/josaa.383002