tristimulus values


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tristimulus values

[trī′stim·yə·ləs ‚val·yüz]
(optics)
The magnitudes of three standard stimuli needed to match a given sample of light.
References in periodicals archive ?
The conversion matrix to compute the YIQ values from the original RGB NTSC tristimulus values is given by:
n] are the tristimulus values of the white stimulus, which is typically the brightest stimulus in the view field [11] All the tested films have similar lightness value ([L.
The CIE tristimulus values for an object are calculated by combining the spectral power distribution of the illuminant with the reflectance factor of the object and the color matching functions of the observer.
Where L*, a* and b* represent, lightness, red-green, and yellow-blue coordinate respectively; X, Y, Z are the CIE XYZ tristimulus values of the sample; [X.
The basic colorimetric characterization of the CRT monitor can be represented as a combination of two parts: the tone reproduction curves (TRCs) for each channel, and the transformation matrix from linearized RGB to tristimulus values (XYZ).
color space is derived from the CIE XYZ tristimulus values.
CIE tristimulus values of the sample in question are determined by integration over selected illuminants.
X, Y and Z are the tristimulus values of the stimulus and [X.
The tristimulus values can be plotted two-dimension-ally on the CIE chromaticity chart, shown in Figure 2.
CIE tristimulus values of the sample are determined by integration over selected illuminants.
Chromaticity coordinates: The ratios of each of the three tristimulus values X, Y, and Z in relation to the sum of the three; designated as x, y, and z, respectively.