HUE-DISCRIMINATION THRESHOLDS AND HUE-COEFFICIENTS
نویسندگان
چکیده
منابع مشابه
Tyndall's paradox of hue discrimination.
We confirm a remarkable but forgotten property of human color vision that was described over 50 years ago by Tyndall [J. Opt. Soc. Am 23, 12 (1933)]: if wavelength discrimination is measured in the region of 455 nm, the sensitivity of the eye improves when a large fraction of the monochromatic light in each half of the matching field is replaced by white light that is common to the two halves. ...
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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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As first remarked by Charles Darwin (1877), very young children frequently have difficulty when naming or choosing colors. To investigate the cause of this difficulty, we have tested preschoolers (mean age = 4.1) for hue discrimination and hue memory and compared their results with those of preadolescents (mean age = 9.6) and young adults (mean age = 25.8). The tests were designed to minimize t...
متن کاملLightness compression and hue changes.
Two experiments were performed to relate the Bezold-Brücke (B-B) and lightness compression effects. The first used a calibrated screen to present an achromatic luminance staircase. In addition, it reproduced, the methodology and the essential aspects the lightness compression effect discovered by Cataliotti and Gilchrist (1995). That is, observers perceived a truncated grey scale (from white to...
متن کاملColor constancy and hue scaling.
In this study, we used a hue scaling technique to examine human color constancy performance in simulated three-dimensional scenes. These scenes contained objects of various shapes and materials and a matte test patch at the center of the scene. Hue scaling settings were made for test patches under five different illuminations. Results show that subjects had nearly stable hue scalings for a give...
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ژورنال
عنوان ژورنال: Japanese Psychological Research
سال: 1968
ISSN: 0021-5368,1468-5884
DOI: 10.4992/psycholres1954.10.179