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Image Sengs
Customize the image parameters including the brightness, contrast, and saturaon for the live
view and recording eect.
Exposure
Set the camera exposure me (1/10000 to 1 sec). A larger exposure value results in a brighter
image.
Day/Night Switch
The camera can be set to day, night, or auto switch mode according to the surrounding
illuminaon condions.
Backlight
Set the camera's wide dynamic range (0 to 100). When the surrounding illuminaon and the
object have large dierences in brightness, you should set the WDR value.
Image Enhancement
For opmized image contrast enhancement.
7.4 Congure Video Parameters
Video parameters would aect the live view image and recording le.
Go to System → Device Access → Device Conguraon → Device Parameter → Video
Parameters . Select a camera, and congure parameters as your desire.
Main Stream
Main stream refers to the primary stream that aects data recorded to the hard disk drive and
will directly determine your video quality and image size. Comparing with the sub-stream, the
main stream provides a higher quality video with higher resoluon and frame rate.
Sub-Stream
Sub-stream is a second codec that runs alongside the mainstream. It allows you to reduce the
outgoing internet bandwidth without sacricing your direct recording quality. Sub-stream is
oen exclusively used by smartphone applicaons to view live video. Users with limited internet
speeds may benet most from this seng.
Resoluon
Image resoluon is a measure of how much detail a digital image can hold. The greater the
resoluon, the greater the level of detail. Resoluon can be specied as the number of pixel-
columns (width) by the number of pixel-rows (height), e.g., 1024 × 768.
Bitrate Type
The bit rate (in kbit/s or Mbit/s) is oen referred to as speed, but actually denes the number of
bits/me unit rather than distance/me unit. Two types including variable or constant are
available.
Network Video Recorder User Manual
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