A comparison of five color order systems
β Scribed by Rolf G. Kuehni
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 272 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0361-2317
No coin nor oath required. For personal study only.
β¦ Synopsis
Five color order systems (Munsell Renotations, Munsell Re-renotations, OSA-UCS, NCS, and Colorcurve) have been compared by optimizing the powers applied to individual opponent-color functions. The results indicate general similarities in that powers applied to the red and green functions tend to be closer to 1, while those applied to the blue function and the yellow function are generally smaller. Specifically, there are many individual differences that make each system unique. The results inspire confidence in the veracity of the opponent-color system methodology.
π SIMILAR VOLUMES
A structural comparison has been made of the lightness, chroma, and hue scales of the Munsell system, as expressed in the Munsell Renotations, and of the OSA-UCS system. While the lightness scales are similar (except for the adjustment for the Helmholtz-Kohlrausch effect and the inclusion of a "cris
The ultimate analyses, u.v.-visible absorption spectra, fluorescence spectra and i.r. spectra of five humic acids have been studied. One was obtained commercially from peat, two from organic-rich soils, one from an estuary and one from a marine sediment. The U.V. spectra were used to compare average