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Installation Guide
Masked Cam Det
The unit has the capability to identify if a video input has been covered (by hand, spray paint, etc.) to
prevent video images being viewed and recorded. The Camera Masking option takes the input levels of
contrast and compares these against a user defined minimum contrast level. If the video input goes below
this user defined level an event is generated on the unit.
Camera
Displays the camera number and camera title as configured on the
Camera Setup page.
On
Enables or disables the feature on the camera.
Dwell
This is the delay the unit will wait before declaring the camera is masked.
Threshold
Defines the threshold the system uses to define that a camera is
masked. It will be necessary to adjust this figure to avoid false alarms.
Note:
In low light conditions, enter a figure below the contrast threshold (see below). Experiment with
camera masking alarm activation until a figure is found that avoids false alarms.
Contrast
D
efines the contrast threshold the system uses to define that a camera is
masked. Different cameras have different characteristi
cs.
On Mask
Select the alarm that will be activated on camera masking.
Refresh (Purple)
Refreshes the information on the current page
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