chromaticity


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chromaticity

[‚krō·mə′tis·əd·ē]
(optics)
The color quality of light that can be defined by its chromaticity coordinates; depends only on hue and saturation of a color, and not on its luminance (brightness).

chromaticity

The color quality of light definable by its dominant (or complementary) wavelength and its purity, taken together.

hue

The dominant wavelength of a color. Also known as "chromaticity." A color system (color space, color model) measures color by hue, saturation and luminance. The hue is the predominant color, the saturation is the color intensity (from white to pure color), and the luminance is the brightness (from light to dark). See color space, HSB, HSL and CIE Lab.
References in periodicals archive ?
The chromaticity coordinates (r, g, b) is the cross point between vector signals (R, G, B) and r + g + b = 1, as shown in Fig.
The inset in Figure 3(a) shows the CIE chromaticity diagram for the extracts at pH 12 (x = 0.251, y = 0.406) and the biosynthesis of AgNPs with 0.1 ml (x = 0.255, y = 0.238) and 0.4ml (x = 0.275, y = 0.315) of the cochineal extract.
The chromaticity coordinates x, y, and z have been developed and established by the Commission International de 1'Eclairage (CIE).
Caption: Figure 9: The CiE chromaticity diagram of emission spectra of 1 mol% GdV[O.sub.4]:[Sm.sup.3+].
Soluble solids (SS), total sugar (TS), lightness (L), chromaticity (C), antocyanins (AC), pH, acidity (A), phenolics (P), antioxidant activity (AA) of Brazilian tropical 'Syrah' red wines, according to the rootstock used.
Figure 10(b) shows the CIE chromaticity diagram for 20mol% [Yb.sup.3+]/2mol% [Er.sup.3+] codoped NaY[F.sub.4] microcrystal under the excitation wavelength of 980 nm.
According to the previous theory chromaticity presented below, the coordinates representative luminosity and chrominance data and psychometric parameters for the first three solutions of the study.
For companies on a limited budget, the greatest value is achieved by having in-house measurement capabilities for luminous flux and chromaticity. These are measured most conveniently using an integrating sphere and spectroradiometer.
The recent research suggested that the color and chromaticity of pearls are closely related to the nacre color of the donor mussel, which provides mantle pieces during graft surgery (Zhang et al.
It has a very high chromaticity, which adds intensity to the gold color, due to an advanced coating technology.