HIKVISION DS-2CE78U8T-IT3 Руководство пользователя - Страница 11
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Печатать страницу3.3 Settings
3.3.1 Exposure
Exposure describes the brightness-related parameters,
which can be adjusted by Brightness, Exposure Mode,
AGC, and Slow Shutter.
Brightness
Brightness refers to the brightness of the image.
You can set the brightness value from 1 to 10 to darken
or brighten the image. The higher the value is, the
brighter the image is.
Exposure Mode
You can set the Exposure Mode as Global, BLC, HLC,
and WDR.
Global
Global refers to the normal exposure mode which
adjusts lighting distribution, variations, and
non-standard processing.
BLC (Backlight Compensation)
BLC (Backlight Compensation) compensates light to the
object in the front to make it clear, but this may cause
the over-exposure of the background where the light is
strong.
HLC (High Light Compensation)
HLC (High Light Compensation) masks strong light
sources that usually flare across a scene. This makes it
possible to see the detail of the image that would
normally be hidden.
WDR (Wide Dynamic Range)
The wide dynamic range helps the camera provide clear
images even under backlight circumstances. WDR
balances the brightness level of the whole image and
provides clear images with details.
When WDR is selected as the exposure mode, you can
set it as low, medium, high or off.
AGC (Automatic Gain Control)
It optimizes the clarity of the image in poor light
conditions. The AGC level can be set as High, Medium,
or Low. Select Off to disable the AGC function.
Note:
The noise will be amplified when the AGC is on.
Slow Shutter
Slow Shutter increases the exposure time on a single
frame, which makes a camera more sensitive to light.
Therefore, it can produce images even under low lux
conditions. You can set the Slow Shutter as Off, x2, x4
under 8 MP@15fps, or 8 [email protected] mode, and as Off,
x2, x4, x6, x8, or x16 under other modes according to
different light conditions.
Figure 3-3 Exposure