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Prime colors and color imaging
- Publisher
- Wiley
- Copyright
- Copyright © 2006 Wiley Periodicals, Inc.
- ISSN
- 0361-2317
- eISSN
- 1520-6378
- DOI
- 10.1002/col.20283
- Publisher site
- See Article on Publisher Site
Abstract
Color‐matching functions (cmfs) produced by monochromatic primaries change in an orderly way when the wavelengths of the primaries are changed. When only one of the three wavelengths is varied, the corresponding cmf changes in scale but not in shape. That is, changing one primary changes all three cmfs, but if only the red primary is changed, for example, then the red cmf changes only in scale. A set of primaries will exist such that each cmf has a maximum value of 1, and that peak occurs at the primary wavelength, by a prior theorem. Those are Thornton's prime colors, and if they are the initial primaries, then changing one primary wavelength can only increase the scale of its cmf. Precise prime color sets have been calculated: (603, 538, 446) for the CIE 2° observer, and (600, 536, 445) for the CIE 10° observer. © 2006 Wiley Periodicals, Inc. Col Res Appl, 32, 22–24, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/col.20283
Journal
Color Research & Application – Wiley
Published: Feb 1, 2007