Alc (Automatic Level Control) Function; To Use The Alc Function; Automatic Gain Level Control; Detailed Settings For Gain Auto (Automatic Gain Level Control) - JAI GO-5101M-PMCL User Manual

ALC ( Automatic Level Control) Function
The ALC (automatic level control) function combines the automatic gain control (AGC/Auto Gain
Control) and automatic exposure control (ASC/Auto Shutter Control) functions, and is capable of
handling various changes in brightness.
The function operates as follows in response to changes in brightness.
Change from bright to dark: ASC  AGC
Change from dark to bright: AGC  ASC
AGC operation
ASC (auto shutter) operation

■ To use the ALC function

Set [Gain Auto] or [Exposure Auto] or both to [Continuous] mode. Configure the minimum value,
maximum value, etc. for AGC and ASC under [JAI Custom Control ALC].
The target video levels for AGC and ASC are configured in [ALC Reference]. For example, when [ALC
Reference] is set to 100%, video levels will be maintained at 100% for AGC and ASC.

■ Automatic gain level control

Set [Gain] to [Continuous].

Detailed Settings for Gain Auto (Automatic Gain Level Control)

When [Gain Auto] is set to [Continuous], you can configure the conditions for automatic adjustment in
detail.
ALC Reference
ALC Area Enable All
ALC Area Selector
ALC Area Enable
AGC Max.
AGC Min.
AGC/ASC Control Speed
Dark
AGC
AGC operation
Max. to min. (user specified)
Max
Fixed at max. ASC value
Operation during change
from dark to bright
Item
— 42 —
Change in brightness
Fixed at min. gain value
ASC operation
Fixed at min. ASC value
Max. to min. (user specified)
Operation during change
from bright to dark
Description
Specify the target level for automatic gain control. (This
setting is also used for automatic exposure control.)
Select whether to specify all areas as auto gain metering
areas or whether to specify the areas individually.
[0]: Specify areas as auto gain metering areas (16 areas)
individually.
[1]: Specify all areas as auto gain metering areas.
Individually select any of 16 areas for automatic gain
metering. (This setting is also used for automatic exposure
control.)
Select [True] to enable the metering area selected in [ALC
Area Selector], or select [False] to disable it.
Specify the maximum value for the automatic gain control
range.
Specify the minimum value for the automatic gain control
range.
Specify the reaction speed for automatic gain control. (This
setting is also used for automatic exposure control.)
GO-5101M-PMCL / GO-5101C-PMCL
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