Imperx Cheetah C2020 User Manual page 44

Cheetah Pregius Camera with Camera Link – User Manual
Use the White Balance drop-down menu to select a white balance preset:
White Balance Presets
Off
Once
Auto
Manual
Use Manual WB Coefficients to manually define white balance coefficients for each color
(red, green, and blue). Coefficient values affect the intensity of each color and range from
0 to 4095. The Statistic area of the screen gives you the current (calculated) white balance
coefficients per color.
For best color accuracy and stability when the spectral source is constant, image a
uniform grey target with the camera using a desired light source. Select Once to find the
correct R, G, and B coefficients and write down the values. Then select Manual and load
these coefficients into the camera. Leave Manual selected. The camera will now apply
these coefficients to every frame captured.
July 6, 2018
Figure 33:Color Control.
Descriptions
No white balance performed.
The camera analyzes only one image frame, calculates only one
set of color correction coefficients, and corrects all subsequent
frames with this set of coefficients.
The camera analyzes each frame, derives a set of correction
coefficients on each frame, and applies them to the next frame.
The camera uses the correction coefficients as entered from the
user.
Table 4: White balance presets
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