chromaticity coordinates


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chromaticity coordinates

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(General Physics) physics three numbers used to specify a colour, each of which is equal to one of the three tristimulus values divided by their sum. Symbols: x, y or z
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For the analysis of the parameters in CIELAB space, the chromaticity coordinates in RGB and brightness for both models was plotted with the intention to visualize possible changes in relation to inside the Annona Muricata with the pesticide Malathion, respect to the base model of the fruit without pesticide.
In these, it found a color relationship with the state of maturity and the physicochemical properties to the fruits studied by the chromaticity coordinates and image processing.
5) The color temperature and CIE chromaticity coordinates of the coatings were measured using a MFS-630 optical characteristics measuring system (Hong Ming Technology, Taiwan).
The spectrometer transformed spectral data into lightness data (L) and chromaticity coordinates (redness [a] and yellowness [b]) on the basis of a D65 light source (CIE 1986).
Peak wavelength, FWHM, and CIE 1931 chromaticity coordinates of the ten LEDs used as primaries, when operated alone.
Chromaticity coordinates a * and b * over the aging period are shown in Figs.
The CIE 1960 (u, v) chromaticity coordinates were applied for the CRI, FI, and GAI calculations.
These values, or chromaticity coordinates, can be expressed in any one of several coordinate systems and are useful in the development and maintenance of color-comparison databases.
This comparison is expressed as [DELTA]E (Delta E), a measure that transforms the CIELAB chromaticity coordinates mentioned above to an observed color difference (i.
These tri-stimulus colorimetric coordinates are referred to as chromaticity coordinates.
The lights were created using 20-W, 12-V tungsten halogen globes with appropriate filters to provide the appropriate traffic signal chromaticity coordinates specified in AS/NZS 2144:2002, and the intensity was controlled using neutral density filters.
The spectral distribution and chromaticity coordinates of a number of LEDs have been measured (2).