HikRobot CameraLink Area Scan Camera, User Manual

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CameraLink Area Scan Camera
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User Manual
57
The white balance refers to the camera color adjustment depending on different light sources.
Adjust the Gain Value of the image’s R channel and B channel to keep white regions white under
different color temperatures. Ideally, the proportion of R channel, G channel and B channel in the
white region is 1:1:1.
Table 8-4 White Balance Status Description
White Balance
Mode Parameter Parameter Value Description
Off
Analog Control >
Balance White
Auto
Off
You need to set the R, G, B value
manually, between 1 and 4095.
1024 means ratio is 1.0
Once
Analog Control >
Balance White
Auto
Once
Automatic white balance once.
Adjust the white balance for a
certain amount of time then stop. It
implements an algorithm that finds
possible gray areas in the Bayer
data.
Continuous Analog Control >
Balance White
Auto Continuous Continuous automatic white
balance. It implements an
algorithm that finds possible gray
areas in the Bayer data.
It is recommended to correct white balance when there is great difference between the camera’s
color effect and actual effect. You can correct white balance as shown below.
Steps:
1. Put a white paper in the range of the camera’s field of view, and make sure the paper covers
the entire field of view.
2. Set exposure and gain. It is recommended to set image brightness value between 120 and 160.
Please refer to Section 8.7 for setting exposure, and refer to Section 8.8 for setting gain.
3. Select Once as Balance White Auto, and the camera will automatically adjust white balance
for once.
If there is still great difference between correction effect and actual color, it is recommended to
correct white balance according to following steps.
Steps:
1. Select Off as Balance White Auto. At this time, Balance Ratio is 1024.
2. Find corresponding R/G/B channel in Balance Ratio Selector. Here we take Green as an
example.
3. Find camera’s R/G/B value.