Digital Gain

The digital gain feature adjusts the amplification level of the signal from the camera sensor before it's converted to digital format. Gain control is crucial for optimizing image brightness, especially in low-light conditions, without altering the exposure time.

Note: This feature’s value limits are influenced by other features, such as pixel format, analog-to-digital converter, and auto gain. So you must recheck the values after adjusting related features.

Gain node

• Access mode: Read/Write
• Node type: Uint32
• Example values:
  • 256 (the default value, which provides no amplification, equates to a gain of 1 or 0dB)
  • 1020 (provides moderate amplification for low-light conditions, equates to a gain of 4 or 12dB)
  • The formulas for gain are: GV/V = Gslider/256, and GdB = 20log10(Gslider/256)

You can use the eSDK API functions to:

• get and set the node’s current value, and
• get the node’s minimum and maximum values, and the node’s value increments.

For more information about related features, see Analog Control Features.