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Contents
Nano-5G Series GigE Vision Camera
Color Processing Functional Overview
Nano-5G color cameras provide White Balance controls (automatic or manual). These features are
described below in more detail. Note that computer monitors have wide variations in displaying
color. Users should consider using professional monitors which have factory calibrated fixed presets
conforming to sRGB or AdobeRGB color spaces.
White Balance Operation
The Nano-5G white balance control allow either manual settings for the RGB gain levels, or an
automatic algorithm executing periodically or on demand. Automatic mode operates under the
assumption of a color neutral scene, where an IR filter installed on the Nano-5G camera is
recommended for most applications.
For Manual Adjustments
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RGB values range from 1 to 4, in 0.01 increments.
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Use
BalanceRatioSelector
to select the RGB gain to adjust and use
BalanceRatio
to change the
gain value.
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The user selects one color to stay fixed at a gain of 1.00 (often green).
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Adjust the gain for R & B to achieve the white balance desired.
For Automatic Adjustments
With either periodic or on demand modes, the Nano-5G will determine the color to set to a gain of
1.00, and then adjust the other two color gains. The
BalanceRatio
feature will show gain settings at
higher precision than user set values.
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Set BalanceWhiteAuto to Periodic or OnDemand.
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The periodic mode will recalculate every 10ms, while the on demand mode requires the
execution of balanceWhiteAutoOnDemandCmd.
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The user can override the automatic choice of the color referenced to a gain of zero via the
balanceRatioReference feature, but often the results look false colored.
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