GigE Area Scan Camera User Manual

12.14 Set Gain

Note

The gain function may differ by device models.

The device has 2 types of gain, including the analog gain and digital gain. The analog gain

is applied before the signal from the device sensor is converted into digital values, while

digital gain is applied after the conversion.

12.14.1 Set Analog Gain

The device supports 3 types of gain mode, including Off, Once and Continuous. Click

Analog Control → Gain Auto, and select Gain Auto according to actual demands.

● Off: The device adjusts gain according to the value configured by user in Gain.

● Once: The device adjusts the gain automatically according to the image brightness.

After adjusting, it will switch to Off mode.

● Continuous: The device adjusts the gain continuously according to the image

brightness.

When the gain mode is set as Once or Continuous, the gain should be within the range of

Auto Gain Lower Limit (dB) and Auto Gain Upper Limit (dB).

Figure 12-33 Set Gain under Once or Continuous Mode

Note

● When increasing gain, the image noise will increase too, which will influence image

quality. If you want to increase image brightness, it is recommended to increase the

device’s exposure time first. If the exposure time reaches its upper limit, and at this

point, you can increase gain.

● Some models of the device do not support Once or Continuous gain mode. You can

enter Gain (dB) directly.

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