11.10.1
Image quality check
The Image Monitor can detect if images produced by the camera are still usable. It can give
an indication of the performance of the camera and show whether or not it needs attention. A
quality check is made against what is normally a good picture.
Examples of detectable occurrences:
● The camera is in focus during sunny days, but out of focus in low light situations.
● The initial daytime camera position seemed ok, but streetlights and spot lights affect the
image during nighttime.
● The lens has got dirty.
● The iris control has got stuck.
● Camera failure.
11.10.2
Enable the Image Monitor
The Image Monitor can measure camera focus, exposure, contrast level, and SNR (Signal-to-
Noise Ratio). The four measurements are disabled by default. You can enable them
simultaneously or separately.
Note: Enabling/disabling a measurement also enables/disables the associated alarm.
To enable all measurements simultaneously
● In the Measurements section, click IMAGE MONITOR DISABLED.
The four dials are activated, the pointers indicating the current measurements.
Image Monitor: all measurements enabled
To enable/disable individual measurements
1
In the VCA Settings section, click the accordion style menu labelled with the
measurement you require.
The settings of the selected measurement display.
2
Select/Clear the Enable box to enable or disable the measurement, respectively.
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