Network Camera User’s Manual
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Exposure setting
Here it provides 3 mode:
Auto
,
Backlight
and
Customized
.
Auto
and
Backlight
modes are 2 default settings for general purpose and backlight scene,
respectively.
Customized
mode relates to the grid window above can be pointed on for
interesting areas. Within the mode Customized, 16*15 grids windows can be
chosen to match where/what you are interested in. Push down left-button of
mouse and drag to draw the grids for interesting areas, or push down right-button
of mouse and drag to clean the grids for insignificant areas.
“Target Luminance and Offset”
These two slide bar,
Target Luminance
and
Offset
represent the expected
target value of the luminance of the weighting result of AE windows in the image
and its tolerance as offset. For example, target luminance is set to 100 and target
offset is set to 20 that means the average luminance of the AE window should be
in the range from 80 to 120 (100±(10. When the actual luminance does not meet
this range, the AE function will adjust shutter and gain to meet it as possible. In
some extreme cases, it cannot reach the target because the environment is too
bright or dark. When the environment is not consistent, e.g. with big moving
objects, and the offset is too narrow, the AE will act more frequently that will
cause the background of view inconsistent. The offset value is recommended to
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