Vivotek FD8372 User Manual download pdf (Page 50)

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50 - User's Manual

Measurement Window: This function allows users to configure measurement window(s) for low

light compesation.

■ Full view: Calculate the full range of view and offer appropriate

light compesation.

■ Custom: This option allows you to manually add specific windows as measuring areas. The

measuring window refers to “weighed window“ where the lighting condition within the particular

area is taken into account. Camera firmware then adopts the weighed averages method to

calculate the value.

Exposure control:

■

Exposure level: You can manually set the Exposure level, which ranges from -2.0 to +2.0 (dark to

bright).

■

Exposure mode: Select Auto or Manual mode according to your needs.

Manual: Select Manual to set a xed exposure time and gain. Then, tune the slide bar to set the

Exposure time and Gain Control to the best image quality. A shorter exposure time allows less

amount of light to enter the sensor; while a higher gain control value generates certain amount of

noises.

Auto: If you set Exposure mode as Auto, the Exposure time and Gain control will not be

congurable since the sensor library will automatically adjust the value according to the ambient

light. Then you can set iris mode as “indoor” or “outdoor” to reach the best image quality.

■ Iris mode:

Select Indoor or Outdoor iris mode to adapt to the installation. The preset iris aperture

setting will apply.

Include

Exclude x

Exclude

A total of 9 inclusive and exclusive

windows can be created for a view. You

can create Exclude windows for the

camera to ignore the lighting condition

of certain areas.

Note that the title pane of the Include/

Exclude windows is not included into

the calculation.

■ BLC: When selected, a BLC window

will appear on screen meaning that the

center of the scene will be taken as

a weighed area. This option enables

light compensation for images that are

too dark or too bright to recognize; for

example, for the dark side of objects

that is posed against bright sunlight.

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Vivotek FD8372 User Manual Page 50

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