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SD Excel
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 identifies normal levels of
contrast and uses them as a base line. It then 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.
Simple Activation
Simple Activation
Select Zone Activation
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 selected were false alarms
are avoided
Summary of Contents for SD Excel
Page 1: ...Installation Guide...
Page 228: ...228 SD Excel...
