Vivotek FD8167 User Manual page 58

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
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
58 - User's Manual
Exclude
x
Exclude
Include
x
Include
x
x