8.Features
© 2023 China Daheng Group, Inc. Beijing Image Vision Technology Branch 99
8.3.15.
Acquisition Status
The Acquisition Status feature can determine whether the camera is waiting for trigger signals. This is
useful if you want to optimize triggered image acquisition and avoid over triggering.
To determine if the camera is currently waiting for trigger signals:
a)
Set the AcquisitionStatusSelector parameter to the expected trigger type. Two trigger types are
available: FrameTriggerWait and AcquisitionTriggerWait. For example, if you want to determine if the
camera is waiting for FrameStartTrigger signals, set the AcquisitionStatusSelector to
FrameTriggerWait. If you want to determine if the camera is waiting for FrameBurstStartTrigger
signals, set the AcquisitionStatusSelector to AcquisitionTriggerWait.
b)
If the AcquisitionStatus parameter is true, the camera is waiting for a trigger signal of the trigger type
selected. If the AcquisitionStatus parameter is false, the camera is busy.
8.3.16.
Black Level
The Black Level can change the overall brightness of an image by changing the gray values of the pixels
by a specified amount. Currently, the application range of the black level value can only be selected as all
pixels, and pixel selection is not supported. The lower the black level, the darker the corresponding image,
the higher the black level, the brighter the corresponding image.
The automatic black level adjustment has three states: OFF, Once, and Continuous. If it is Once mode,
the automatic black level state will automatically change to OFF after adjustment. If it is in Continuous
mode, the automatic black level status will not change. When you need to manually adjust the black level,
you need to set the automatic black level status to OFF.
8.3.17.
Remove Parameter Limits
The range of camera parameters is usually limited, and these factory limits are designed to ensure the
best camera performance and high image quality. However, for certain use cases, you may want to specify
parameter values outside of the factory limits. You can use the remove parameter limits feature to expand
the parameter range. The features of the extended range supported by different cameras may be different
and the range may be different, as shown in Table 8-3.
Model
Features
Set the switch to off
Set the switch to on
MARS-561-207GTM/C
Exposure
4~1000000
4~15000000
Auto Exposure
4~1000000
4~15000000
Gain
0~16
-2~22
Auto Gain
0~16
-2~22
Black Level
-511~512
-511~512
Sharpness
0~3
0~63
MARS-900-120GTM/C
Exposure
4~1000000
4~15000000
Auto Exposure
4~1000000
4~15000000
