Huawei IPC6122-P Configuration Manual page 44

IPC6122-P
Configuration Guide
Step 2 Set ISP parameters. For detailed parameter description, see
Table 6-4 ISP Parameter description
Parameter
Day/Night mode
Day/Night sensitivity
Gain limit
Exposure compensation
coefficient
Auto aperture
Issue 02 (2016-04-06)
Description
The day/night mode helps the IPC to adapt to low
illumination conditions. The options are as follows:
l Auto (default): The IPC automatically switches between
day and night modes based on illumination conditions.
l Color: The IPC captures color images.
l B/W: The IPC captures black and white images.
This parameter is available only when you set Day/Night
mode to Auto.
The day/night sensitivity refers to sensitivity for switching
between color mode and B/W mode. A higher sensitivity
indicates higher flexibility to switch from B/W mode to
color mode. The default value is High.
This parameter is available when you set Day/Night mode
to Color or B/W.
The gain limit function is used to restrict the upper limit of
the Automatic Gain Control (AGC).
l In the case of low illumination conditions, the AGC can
be enhanced to improve image brightness. However, a
high level of AGC will increase the image noise and
degrade the image quality. Set this parameter based on
the site requirements.
l When Metering mode is set to Average metering in
infrared light conditions, over-exposure will occur on
the area with light in the foreground. By setting this
parameter, this phenomenon can be eased.
Exposure compensation is a technique for adjusting the
exposure indicated by a photographic exposure meter, in
consideration of factors that may cause the indicated
exposure to result in a less-than-optimal image.
l If you select the check box, the aperture is automatically
adjusted. The default value is selected.
l If you deselect the check box, the fixed aperture is the
maximum aperture.
NOTE
When the auto aperture function is enabled but the aperture cannot
be fixed (resulting in flashing video image), you can disable the
auto aperture function.
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6 Setting Video Parameters
Table 6-4.
39