Color theory

The HunterLab system (1958) was the hrst to use the opponent color theory stating that the red, green, and blue cone responses are re-mixed into opponent coders as they move up the optic nerve to the brain.Based on that theory, the HunterLab color space is three-dimensional and rectangular (see Figure 1.6). 

During the mid-1970s, theoretical physicists worked out the color theory in detail, gaining an understanding of the forces binding quarks together. This theory, which was called quantum chromo-... 

Ringbom, Art Moffitt, Fighting Forms, and Theosophical Origins of Franz Marc s Color-Theory see also the essay on Marc, in Loers, 266-76 (which does not cite the last two articles) for Kupka s Theosophical affiliations, see Henderson, Duchamp in Context Moffitt, Kupka Rowell. 

The Theosophical Origins of Franz Marc s Color-Theory. In C. Regier, ed. 

From the point of view of the conjugation system and color theories the copper atoms may be regarded as substituents in the main chrornophore with realization of d % conjugation. 

Color Theory Made Really Easy. 50 mins. San Diego Discover Art, 1995. 

A third measure uses the three-color theory to establish that all colors Z can be decomposed from at least three primary colors, which we can arbitrarily choose as R = red (4 = 700 nm), G = green (1 = 546.1 nm), B = blue (4 = 435.8 nm) ... 

Chrysophenine shows a characteristic reaction with mineral acids witli which it turns a beautiful blue. It is of interest, theoretically, that chrysophenine is an extraordinarily strong dye even though it contains no auxocliroiue groups of the type required by tlie Witt color theory. 

Note that the uniformity of a color space is of concern only if color is regarded as a (visual) quality. When using color as an analytical tool, the color system which differentiates the iron oxides most effectively would be the most favorable, no matter whether it is uniform or not. A discriminant analysis performed with a large number of iron oxide samples showed that CIE-Yxy, CIE-Lab, and the Munsell system performed equally well (Scheinost and Schwertmann, 1999). Therefore, the choice of a color system is not crucial. Furthermore, computer programs are available which transfer colors from one system into another. More details on color theory and color systems are given by Wyszecki and Styles (1982) and Hunter and Harold (1987). 

Torrent J. and Barron, V (1993) Laboratory measurements of soil color theory and practice. In Bigham, J. M. and. Ciolkosz, E. J. (Eds.) Soil Color, Soil Science Society of America,. Special Publ. No. 31 21-33. 

A uniform color scale devised by Hnnter in 1958 for nse on a color difference meter, based on the opponent color theory of vision. 

Figure 16.2 The Hunter Lab color space in a cube form. It is based on the Opponent-Colors Theory. The theory assumes that the human eye perceive color as pairs of opposites, namely, light-dark, red-green, yellow-blue (with HunterLab permission).

Critical aspects concerning the use of indicators in acetic acid medium have been studied on the basis of color theory and the behavior of the indicator in a titration process of a base B. This behavior is defined by... 

Selecting a standard illuminant, a standard observer, and the proper expression of results is essential to obtaining color data that correspond to color perception. However, because instruments are simple to operate, many operators are untrained in instrument and color theory. They make bad parameter choices or instrument adjustments and measure specimen colors incorrectly (30). If the operator can define the color task, he or she will probably choose the correct variables and solve his or her color mea-... 

Wehlte (1975) Wehlle, K. Uie Materials and Techniques of Painting, with a Supplement on Color Theory Van Nostrand Reinhold (1975)... 

F Gerritsen. Theory and Practice of Color A Color Theory Based on Laws of Perception. New York Van Nostrand Reinhold, 1975. 

Color Theory and Its Application in Art and Design 2nd Edition By G. A. Agoston... 

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