Results 301 to 310 of about 580,978 (340)
Some of the next articles are maybe not open access.
Color discrimination and neural coding in color deficients
Vision Research, 1987Rayleigh color match ranges obtained from color deficient observers varied considerably as a function of spatial and temporal parameters of stimulus presentation. The results suggest that color discrimination losses in color deficients result from abnormalities in the spatial and temporal properties of neural coding in addition to cone photopigment ...
A L, Nagy, K F, Purl
openaire +2 more sources
Color discrimination in horses
Applied Animal Behaviour Science, 1999Abstract Four Arabian horses and one Thoroughbred were presented with a series of two-choice color vs. gray discrimination problems. Testing was done in a stall containing a wall with two translucent panels that were illuminated from behind by light projected through color or gray filters to provide the discriminative stimuli. Horses first learned to
Susan Smith, Larry Goldman
openaire +1 more source
Color Discrimination of Twelve Observers*
Journal of the Optical Society of America, 1957The sensitivities of twelve normal observers to small color differences were determined by studying the distribution of color-matching errors about a color center. Twenty-two color centers were used. These were distributed throughout the chromaticity diagram. The average luminance of the colors was 4.9 ft-L. The matching field size subtended 10° at the
openaire +2 more sources
Fourier Analysis and Color Discrimination*
Journal of the Optical Society of America, 1969The contrast thresholds of equiluminous chromaticity-modulated gratings are measured for various waveforms (sine-, square-, and triangular-wave gratings). The expectation is expressed that only the fundamental Fourier component is of significance in the threshold visibility of colored gratings.
openaire +2 more sources
Color Induction and Hue Discrimination
Science, 1961A very close relationship has been found between hue discrimination thresholds and the differences in wavelength necessary to produce "full color" from two monochromatic light sources. This finding suggests a need for certain research in the area of color induction.
openaire +2 more sources
Color discrimination on Mangaia
Current Psychological Research & Reviews, 1985Bornstein’s hypothesis that there is a loss of color discrimination in tropical areas was not supported in earlier research in the Cook Islands. Using a more sensitive color vision test (the Farnsworth-Munsell 100-Hue Test), a loss of color discrimination in the red-purple and blue-green regions of the spectrum was found. The lack of sex differences in
A. D. Harrison, M. B. Simmonds
openaire +1 more source
Color discrimination by computer
IEEE Transactions on Systems, Man, and Cybernetics, 1989A color space metric that is useful for computer vision is developed. It can be applied to images sensed using color filters (e.g. R, G, B). This metric is defined in terms of the spectral characteristics of the filters and camera and accounts for their noise properties.
openaire +1 more source
COLOR DISCRIMINATION IN INDUSTRY
Archives of Ophthalmology, 1942The importance of color vision in many industrial jobs has long been recognized. A logical job analysis, even without experimental evidence, is sufficient to convince almost every one that color vision is essential in such jobs as matching samples of various colored materials and operating mobile equipment for which the operating signals are colored ...
J. TIFFIN, H. S. KUHN
openaire +1 more source
Adaptation and Color Discrimination
1991A central problem in color vision is how color discrimination varies over color space. MacAdam (1942) attacked the problem in an elegant set of experiments. He developed a special color mixer which produced a bipartite disc consisting of a fixed half field and a variable half field.
John Krauskopf, Karl Gegenfurtner
openaire +1 more source
Rautian on Color Discrimination
Journal of the Optical Society of America, 1955Ellipses representing just-perceptible differences of color from 36 basic colors have been published by G. N. Rautian. These constitute the first redeterminations of color-discrimination ellipses. Unfortunately, Rautian published his results in an obscure coordinate system.
openaire +1 more source