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If, despite the above effort, you still do not meet your goals, it's time to use the gain features. You
may want to use the white balance gains to adjust the peak of each color to a similar DN value,
and use the system gain to adjust the peak intensity of the three colors to the desired DN level.
Keep in mind that changes to gain do not improve the image quality at all from an SNR
perspective. All gains are digital multipliers and, as such, the gain scales up signal and noise
proportionally. Therefore, use this method only as long as the SNR meets your application
requirements.
In conclusion, before you perform the FFC, we recommend that you to try to improve the bare
image quality first. Increasing the output level by enhancing illumination is the preferred method.
You can do this by adjusting gains in the SNR allowable range.
Note that the line profile shown in the above figure is acceptable.
Keep the following in mind:
1. Ensure that camera's temperature is in a stable condition. This may require 30 or more
minutes after power-on.
2. All parameters should meet your application's specifications. If you change parameters after
the FFC is done, then the FFC results many no longer be relevant. When parameters
change, you should consider rerunning the FFC.
The followings are the basic and typical steps to run an FFC:
64 • Operational Reference
Linea GigE Series Camera
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