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Imaginary Color
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OKVIJSD7TUS
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Geliefert zwischen Mi., 26.11.2025 und Do., 27.11.2025
Details
Non-physical, unrealizable, or imaginary colors are points in a color space that correspond to combinations of cone cell responses that cannot be produced by any physical (non-negative) light spectrum. Thus, no object can have an imaginary color, and imaginary colors cannot be seen under normal circumstances. Nevertheless, they are useful as mathematical abstractions for defining color spaces. The spectral sensitivity curve of medium-wavelength ("M") cone cells overlaps those of both short-wavelength ("S") and long-wavelength ("L") cone cells. Light of any wavelength that interacts with M cones also interacts with S or L cones, or both, to some extent. Therefore, there is no wavelength, and no non-negative spectral power distribution, that excites only M cones without exciting S or L cones at all. The hypothetical excitation of the M cone alone would correspond to an imaginary color greener than any physical green, corresponding to a spectral power distribution with positive power in the green (medium) wavelengths and (non-physical) negative power in the red and blue (long and short) wavelengths.
Weitere Informationen
- Allgemeine Informationen
- Editor Frederic P. Miller, Agnes F. Vandome, John McBrewster
- Titel Imaginary Color
- Format Fachbuch
- EAN 9786130713744
- Größe H4mm x B220mm x T150mm
- Gewicht 128g
- Genre Kunst
- Anzahl Seiten 84
- Herausgeber Alphascript Publishing
- GTIN 09786130713744
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