HIKVISION HWT-T250-M User Manual page 14

3.2 EXPOSURE
Exposure describes the brightness-related parameters,
which you can set the EXPOSURE MODE as GLOBAL, BLC,
or DWDR.
GLOBAL

GLOBAL refers to the normal exposure mode which
performs exposure according to the whole image
brightness.
BLC (Backlight Compensation)

BLC (Backlight Compensation) compensates light for the
front object to make it clear, but this may cause the over-
exposure of the background, where the light is strong.
DWDR (Digital Wide Dynamic Range)

DWDR helps the camera provide clear images even under
backlight circumstances. When both very bright and very
dark areas simultaneously exist in the image, DWDR
balances the brightness level of the whole image to
provide clear images with details.
3.3 DAY/NIGHT
COLOR, BW (Black White), and AUTO are selectable for
DAY/NIGHT switch.
COLOR
The image is colored in day mode all the time.
B & W (Black and White)
The image is black and white all the time, and the IR
LIGHT turns on in the poor light conditions.
You can turn on/off the IR LIGHT and set the value of
SMART IR in this menu
Figure 3-3 B & W
IR LIGHT

You can turn on/off the IR LIGHT to meet the
requirements of different circumstances.
SMART IR

The SMART IR function is used to adjust the light to its
most suitable intensity, and prevent the image from over
exposure. The SMART IR value can be adjusted from 0 to
3. The higher the value is, the more obvious effects are.
AUTO
Automatically switch Color, or BW (Black and White)
according to actual scene brightness.
You can turn on/off the IR LIGHT, and set the value of
SMART IR in this menu.
批注 [KL14]: 13
批注 [KL15]: 17
批注 [KL16]:
批注 [KL17]: 现在这块是要认为的控制红外灯开和关了。
增加光线可以参考 U8T