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Vidikron Vision Model 10/Model 12 Owner’s Operating Manual 41
PRE
L
IMINAR
Y
Color Temperature: To adjust the color temperature, select Color Temp from the Picture
Adjust menu and press ENTER. (Color temperature defines the “color of gray.”) The range is
from 5,000K to 10,000K, in increments of 500K. The default setting, 6,500K, is appropriate for
most situations. Higher settings produce a “bluer” picture; lower ones impart a reddish hue
to the image.
For more precise control over the color temperature, you can adjust the x and y coordinates
for gray. These define its location on the standard CIE chromaticity graph, shown in
Figure
4-9. (CIE stands for “Commission Internationale de l’Éclairage” (International Commission on
Illumination), the organization responsible for color measurement and management
standards.) Changing either or both of these numbers changes the hue of gray, within a
narrow range above or below the selected color temperature; refer to
Table 4-2.
To restore the default color temperature, select Reset Color Temp and press ENTER. Press
ENTER again to confirm.
Figure 4-9. CIE 1931 Chromaticity Diagram
Color Temp 6500K
x 0
y 0
Reset Color Temp
Table 4-2. Effect of X and Y Coordinates for Color Temperature
X-adjustment Y-adjustment Result
red hues
blue hues
green hues
yellow hues
0. 0 0.1 0. 2 0.3 0. 4 0.5 0. 6 0.7 0. 8 0.9 1. 0
0. 0
0. 1
0. 2
0. 3
0. 4
0. 5
0. 6
0. 7
0. 8
0. 9
1. 0
x
y
2000
2500
3077
4000
5000
5714
6667
8000
10000
D50
D65
D93