Technical information

GigE camera and driver features

GigE Camera and Drivers Features V3.0.0

This document is a master document for all Allied Vision GigE camera models and is NOT camera specific

Gain [Float] R/W

The gain setting applied to the sensor. For best image quality, the gain setting

should be set to zero. However, in low-light situations, it may be necessary to

increase the gain setting.

GainAuto [Enum] R/W

Auto algorithms use information from the camera’s current image and apply the

following settings to the next image. Large changes in scene lighting may

require 2–3 frames for the algorithm to stabilize.

If using ExposureAuto = Continuous, and GainAuto = Continuous

simultaneously, priority is given to changes in exposure until ExposureAu-

toMax is reached, at which point priority is given to changes in gain. Adding

simultaneous IrisMode = Video/DCIris/PIrisAuto results in unde-

fined, “race to target” behavior.

You can configure the auto gain feature to respond only to a subregion within

the image scene. This subregion can be configured with the DSPSubregion

feature.

GainAutoControl

GainAutoAdjustTol [Integer] R/W

Tolerance in variation from GainAutoTarget in which the auto exposure

algorithm will not respond. This feature is used to limit auto gain changes to

only larger variations in scene lighting.

Range: [Camera dependent] Default: 0 Unit: 1 dB

Note



• Auto algorithm adjusts using 1 dB gain steps.

• The camera must be acquiring images in order for

the auto algorithm to update.

Off [Default] The automatic mode is Off

Once Valid when ExposureMode = Timed or PieceWise-

LinearHDR. Auto-gain occurs until target is achieved,

then GainAuto returns to Off

Continuous Valid when ExposureMode = Timed or PieceWise-

LinearHDR. The gain will vary continuously according to

the scene illumination. The auto exposure function oper-

ates according to the ExposureAutoControl and

DSPSubregion controls

Range: [0–50] Default: 5 Unit: Percent

out

-----------







log=