Vivotek FD8167-(T) user manual Exposure control

VIVOTEK

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.

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.

Exclude x

Includex

Exclude x

Includex

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 fixed 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 configurable 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.

User's Manual - 57