Wisenet HCM-9020VQ, Руководство пользователя

Страница: 28 / 42

28_ Camera operation
Camera operation
auto gain Control
It amplifies the gain of a video signal, and facilitates to see dark video as brightly. When it gets dark, it
becomes impossible to control the brightness only by IRIS or shutter speed. In that case, the function
amplifies AGC Gain. Only under dark environments, Gain is amplified, but under bright environments,
it is not.
The amplification level is 1 to 10 (0 is no amplification, and a higher value gives higher amplification.),
and it can be set by users.
"But, a higher level of AGC may increase the noise level as much as the brightness."
sens-UP
Under low light levels, users can set the mode for a better view of objects or ambient scenes, and its
default value is X2. Its setting level can be set to Off, X2, X4, X8, X16, and X32. A higher level produces
brighter video under low light levels. But, in a higher level, there may occur video echo phenomenon.
3D Dnr (3D Digital noise reduction)
Under dark environments, AGC function operates and produces more noise. The function decreases the noise to enhance the video quality.
There are 4 noise reduction levels as Off, Low, Middle, and High. At Off mode, there is the biggest noise, and at High mode, the smallest.
EXPOSURE
LENS
BACKLIGHT
OFF
DRC
OFF
DEFOG
OFF
AGC
10
SENS-UP x4
3D DNR HIGH
RETURN
EXPOSURE
LENS
BACKLIGHT
OFF
DRC
OFF
DEFOG
OFF
AGC 10
SENS-UP x4
3D DNR HIGH
RETURN