What are “color points, Figure 4-12 . cie 1931 chromaticity diagram, 12. cie 1931 chromaticity diagram – Runco LIGHTSTYLE LS-10I User Manual

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Operation

Runco LS-10i Installation/Operation Manual

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PCE provides the ability to define a custom color gamut in terms of a “white point” and
primary (red, green, blue) and secondary (yellow, cyan, magenta) color points.

What are “color points?” : A “color point” is an x/y coordinate pair that defines a
color’s location on the standard CIE chromaticity graph, shown in Figure 4-12. (CIE
stands for “Commission Internationale de l’Éclairage” (International Commission on
Illumination), the organization responsible for color measurement and management
standards.)

Figure 4-12. CIE 1931 Chromaticity Diagram

• RGB (Red, Green, Blue)/YCM (Yellow, Cyan, Magenta): To precisely adjust the

primary or secondary color points associated with the custom color gamut, choose
RGB or YCM respectively from the PCE sub-menu. Each control operates only on the
color specified. Surrounding colors are linearly interpolated based on their distance
from each of these colors.

• White Balance: To precisely adjust the white point associated with the custom color

gamut, choose White Balance from the PCE sub-menu. These controls operate
identically to the color point controls.

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