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Use the
Day/Night Threshold
slider to set the day/night threshold. Move the slider to
select the light level when the camera switches between day mode and night mode.
The slider is only available when the Day/Night Mode setting is set to
Automatic
.
The slider may display one of the following values:
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Day/Night Threshold (EV):
The slider value is in Exposure Values (EV).
In day mode, the last known light level is displayed under the image panel and is
also shown as a blue bar on the Day/Night Threshold slider.
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Day/Night Threshold (gain dB):
The slider value is in decibels (dB).
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Use the
Hysteresis
setting to refine the threshold offset.
o
Choose
Low
when the camera should switch from day to night in scenes where
the difference between light and dark levels are small.
o
Choose
High
when the camera should switch modes when the difference
between light and dark levels are large.
o
The default value is
Medium
.
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Color
: The video image will always be in color.
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Monochrome
: The video image will always be monochrome.
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External
: The camera will open the IR cut filter and switch to monochrome mode based
on the digital input circuit state.
Note:
The default digital input circuit state is configured on the Digital Inputs
and Outputs page. For more information, see
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Enable IR:
You can manually enable or disable the IR illuminators that are installed on the
camera.
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Enable Adaptive IR Compensation:
You can enable automatic infrared adjustments through
Adaptive IR Compensation. This allows the camera to automatically adjust the video image for
saturation caused by IR illumination.
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Show Auto Contrast ROI:
Enabling this option allows you view and select the region of
interest. The contrast is automatically adjusted based on the selected region.
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Enable Night Visibility Check:
You can manually enable or disable the night visibility check on
a camera. The night visibility check, when enabled, performs a periodic test switching
between day/night mode to check if there is sufficient light level to switch from night mode to
day mode. When disabled, the camera will use a less optimal method to determine if the light
level is sufficient to switch to day mode.
Image and Display
20
