8 Level DVR-AHD-041-1 Installation And Operation Manual page 21

4 channel 720p 25fps
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Record Mask: It will not show mask area in realtime-preview image, but the set area will
not be saw in record image.
All Mask: The image mask area which you have set will cannot be saw in realtime-
preview, record and web access image.
Mask area setting steps:
Select "Record Mask" or "All Mask" in Video mask drop-down list. Click "Mask Area" button
in right side to enter into mask area setting interface.
Set by mouse: Left click a pane as the start position of the mask area, then click another
pane as the end position, and the area will shown.
Set by remote controller and front panel: press direction key to move the cursor, press "OK"
to confirm the start position, then move the cursor to select the area you want to mask, press
"OK" again to confirm the end position. Press "Clear" to cancel the area. Back to the channel
setting interface, click "Save" to activate the setting.
3) Special region
The Special region which you have set will more obvious and clear. You can max set 4 special
areas. The setting methos is similar to mask area setting'.
Note: You can only see the special area setting effect in dark case. It will have no difference
under normal circumstance.
(4) Video adjustment
Click "Video adjustment" button in channel setting interface to enter into channel
parameter setting interface. Or you can press
System default channel parameters: Brightness 128, Contrast 128, Saturation 128, Hue 128.
Channel No.: Used to switch channels, user can also setup all channels directly.
15.2 Channel ame position
Channel name default at top left corner. Click "CH name pos." button to enter into channel
name setting interface, drag the channel name to any position you want in the screen.
15.3. OSD

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