AXIS
Video and Audio
Day/Night
The IR cut filter prevents infrared (IR) light from reaching the image sensor. In poor lighting conditions, for example at night, or when using an IR lamp, set the IR cut filter to Off. This increases light sensitivity and allows the product to “see” infrared light. The image is shown in black and white when the IR cut filter is off.
If using automatic Exposure control, set the IR cut filter to Auto to automatically switch between On and Off according to the lighting conditions.
Iris configuration
Iris configuration shows the current configured iris type. Do not change the iris configuration unless the lens has been changed, see Replacing the lens, on page 9 .
Iris adjustment
Select Enable automatic iris adjustment to automatically compensate for changing light conditions. This option is not available if a fixed iris is used.
View Area
A view area is a cropped part of the full view. The view area is treated as a video source in Live View and has its own video stream and PTZ settings.
To enable a view area, go to Video & Audio > Camera Settings and select Enable View Area.
When setting up a view area it is recommended that the video stream resolution is the same size as or smaller than the view area size. Setting the video stream resolution larger than the view area size implies digitally scaled up video after sensor capture, requiring more bandwidth without adding image information.
To configure the view area:
1.Go to Video & Audio > View Area.
2.Select an Aspect ratio and a Video stream resolution.
3.A new view area covers the whole image. Use the mouse to move and resize the view area.
4.Select Enable PTZ to enable digital PTZ for the view area.
5.Click Save to save the settings.
To modify the view area, modify the settings as required. Click Save.
Tip:
•The PTZ functionality is useful during installation of the Axis product. Use a view area to crop out a specific part of the full view.
Overlay
Overlays can be used to provide extra information and are superimposed over the video image. With overlay text it is possible to include date and time or view the current bit rate as overlay text.
To include the current bit rate as overlay text go to Video & Audio > Video Stream > Overlay Settings, select the Include text check
box option, and enter the code #b in the field. See the online help 
for supported formats.
Overlay image
An overlay image can be used to provide extra information, or to mask a part of the video image.
23
