Using Both Analog Gain And Digital Gain - Basler Racer User Manual

AW00118508000
To set the digital gain using Basler pylon:
1. Set the GainSelector parameter to DigitalAll.
2. Set the Gain parameter to your desired value.
You can set the GainSelector and the Gain parameter values from within your application software
by using the pylon API. The following code snippet illustrates using the API to set the parameter
values:
// Set Gain Digital All
camera.GainSelector.SetValue(GainSelector_DigitalAll);
camera.GainRaw.SetValue(256);
For detailed information about using the pylon API, refer to the Basler pylon Programmer's Guide
and API Reference.
You can also use the Basler pylon Viewer application to easily set the parameters.
For more information about the pylon API and the pylon Viewer, see Section 3.1 on
To set the digital gain via direct register access:
Set the value of the Gain Digital All register.
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For more information about direct register access, see Section 3.2 on
8.2.1.3

Using Both Analog Gain and Digital Gain

You can use analog gain and digital gain at the same time. In this case, the amplification factors will
multiply. For example, if you set analog gain to an amplification factor of 4 and use an amplification
factor of 1.2 for digital gain the total amplification factor will be 4.8. This corresponds to adding
12 dB and 1.6 dB to give a total gain of 13.6 dB.
For optimum image quality, Basler recommends to set the total amplification as low as possible. If
you need an amplification factor larger than Basler recommends to set analog gain to 4 and then
digital gain to reach the desired total amplification.
If you use analog gain and digital gain at the same time and also use the remove
parameter limits for digital gain with digital gain parameter values below 256: Note
also that the amplification factor for total gain will be 0 if the digital gain setting is 0.
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