Parameter Description
Day/Night sensitivity 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.
Gain limit 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
coefficient
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.
Focus mode You can select an focus mode based on the site
requirements. The options are as follows:
l Auto: The IPC automatically detects the surveillance
scenario. If out of focus due to a scenario change, the
IPC automatically re-focuses to obtain clear images.
l Manual: Use the focus buttons on the PTZ control panel
to focus manually. In this mode, the IPC locks the focus
for the current scenario.
NOTE
l If you click a zoom button on the PTZ control panel, the
scenario changes and the IPC automatically re-focuses.
l If you click a focus button on the PTZ control panel, the IPC
locks the focus for the current scenario and does not re-focus
when the scenario changes.
Demist This function is used to increase the image visibility in poor
weather conditions such as rain, fog, and smog.
A higher defogging level indicates clearer images.
However, a too high level will lead to image distortion. You
can set the defogging level based on the site requirements.
IPC6221-VRZ-SP
Configuration Guide
6 Setting Video Parameters
Issue 02 (2016-04-06) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
42
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