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Topic: Metamerism (color)


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In the News (Wed 17 Jul 19)

  
  Color - Wikipedia, the free encyclopedia
The perception of color is influenced by biology (some people are born seeing colors differently or not at all; see color blindness), long-term history of the observer, and also by short-term effects such as the colors nearby.
Note that the color experience of a given light mixture may vary with absolute luminosity, because both rods and cones are active at once in the eye, with each having different color curves, and rods taking over gradually from cones as the brightness of the scene is reduced.
Structural color is a property of some surfaces that are scored with fine parallel lines, formed of many thin parallel layers, or otherwise composed of periodic microstructures on the scale of the color's wavelength, to make a diffraction grating.
en.wikipedia.org /wiki/Color   (3759 words)

  
 Reference.com/Encyclopedia/Color
Color (American English) or colour (Commonwealth English) is a sensation which (in humans) derives from the ability of the fine structure of the eye to distinguish three differently filtered analyses of a view.
The perception of color is influenced by long-term history (nurture) of the observer and also by short-term effects such as the colors nearby.
When the eye shifts attention after viewing a color for some time, then the complement of that color (the color opposite to it in the color wheel) is perceived by the eye for some time wherever it moves.
www.reference.com /browse/wiki/Color   (3350 words)

  
 Color   (Site not responding. Last check: 2007-11-03)
In practice, the human color receptors will be saturated or even be damaged at extremely-high light intensities, but such behavior is not part of the CIE color space and neither is the changing color perception at low light levels (see: Kruithof curve).
Media that transmit light (such as television) use additive color mixing with primary colors of red, green, and blue, each of which stimulates one of the three types of the eye's color receptors with as little stimulation as possible of the other two.
A colored photo of a sunset Two different light spectra which have the same effect on the three color receptors in the human eye will be perceived as the same color.
color.ask.dyndns.dk   (4976 words)

  
 Color Encyclopedia Article @ NaturalResearch.org (Natural Research)   (Site not responding. Last check: 2007-11-03)
However, the cone cells of animal tetrachromats have a different, more evenly-spaced, spectral sensitivity distribution than is believed possible for human tetrachromats.
The main article for this category is Color.
There are 6 subcategories shown below (more may be shown on subsequent pages).
www.naturalresearch.org /encyclopedia/Color   (2637 words)

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