8.Features
© 2023 China Daheng Group, Inc. Beijing Image Vision Technology Branch 103
AcquisitionTrigger signals of the counter statistics refer to the signals that have been triggered for filtering
without a trigger delay.
If CounterValue is enabled, the statistical data can be inserted into the frame information and output with
the image.
The counter can be reset by an external signal. The reset source is selected by CounterResetSource.
Currently, the CounterResetSource option supports Off, SoftWare, Line0, Line2. Among them, Off means
no reset, SoftWare means software reset, Line0, Line2 means reset through IO interface input signal. The
polarity of the reset signal only supports RisingEdge, which means reset the Counter on the rising edge of
the reset signal.
Counter configuration:
1.
Set CounterSelector, currently only Counter1 supported.
2.
Set CounterEventSource, the values that can be set are FrameStart, FrameTrigger, AcquisitionTrigger.
3.
Set CounterResetSource, the values that can be set are Off, SoftWare, Line0, Line2.
4.
Set CounterResetActivation, currently only RisingEdge supported.
1)
After the acquisition is stopped, the Counter continues to work, will not be cleared, and it will
be cleared when the camera is powered off.
2)
CounterReset is used to software reset the counter.
8.4.
Image Processing
8.4.1.
Hot Pixel Correction
Hot pixels are pixels that cannot react to light or incident light. The saturation, sensitivity, noise, and other
characteristics of hot pixels are different from normal pixels, usually related to prolonged exposure, high
gain settings, or sensors at high temperatures.
The hot pixel correction function can dynamically correct defect pixels through adjacent pixels without prior
calibration. In scenarios where the camera is exposed to high temperatures, high gain, and other factors
that can generate more hot pixels, it is recommended to turn on the hot pixel correction function to improve
image quality. This function is disabled by default.
Figure 8-58 Hot pixel correction effect
