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Operational Reference
Nano Series GigE Vision Camera
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 white balance control allows 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 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 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.
Simplified RGB Design Firmware Block Diagram
Defective Pixel
Replacement
Bayer Decoder
User LUT
Color Space
Converter and
Saturation
Control
Y Packer
YCbCr to RGB
Converter and
Packer
YCbCr422
Color Output
Selector
YCbCr
Sensor Data
RGB Gains
Summary of Contents for C1240
Page 215: ...Nano Series GigE Vision Camera Operational Reference 205 ...
Page 275: ...Nano Series GigE Vision Camera Technical Specifications 265 Models M C4090 M C5100 ...
Page 276: ...266 Technical Specifications Nano Series GigE Vision Camera Models M C700 M C1450 ...
Page 277: ...Nano Series GigE Vision Camera Technical Specifications 267 Model M C1950 ...
Page 278: ...268 Technical Specifications Nano Series GigE Vision Camera Model C4900 ...
Page 297: ...Nano Series GigE Vision Camera Additional Reference Information 287 ...
Page 299: ...Nano Series GigE Vision Camera Additional Reference Information 289 ...