View Area; Handle Scenes With Strong Backlight - Axis P13 Series User Manual

AXIS P13 Network Camera Series
Setup
2. Adjust the size and placement of the rectangle in the camera's live view around the area of interest, for example
where the license plates of passing cars are expected to appear. You can then see the number of pixels represented by
the sides of the rectangle.
Note
You can use an object of a known size in the view as a reference to decide how much resolution is needed for recognition.
In addition, you can try to adjust the following to optimize license plate recognition:
• Shutter speed
• Gain
• Zoom

View area

A view area is a cropped part of the full view. You can stream and store view areas instead of the full view to minimize bandwidth
and storage needs. If you enable PTZ for a view area, you can pan, tilt and zoom within it. By using view areas you can remove parts
of the full view, for example, the sky.
When you set up a view area, we recommend you to set the video stream resolution to the same size as or smaller than the view area
size. If you set the video stream resolution larger than the view area size it implies digitally scaled up video after sensor capture,
which requires more bandwidth without adding image information.

Handle scenes with strong backlight

Dynamic range is the difference in light levels in an image. In some cases the difference between the darkest and the brightest
areas can be significant. The result is often an image where either the dark or the bright areas are visible. Wide dynamic range
(WDR) makes both dark and bright areas of the image visible.
1. Go to Settings > Image > Wide dynamic range.
2. If required, turn on WDR.
3. Use the Contrast slider to adjust the amount of WDR.
Image without WDR.
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