Axis P3224-V, Руководство пользователя

Страница: 20 / 65

AXIS P3224-V Mk II Network Camera
Video
Always verify that the video stream meets the quality requirements for your surveillance purposes after changing the video stream
settings.
MJPEG
Sometimes the image size is large due to low light or complex scenery. Adjusting the maximum frame size helps to control the
bandwidth and storage used by the Motion JPEG video stream in these situations. Setting the frame size to the
Default setting
provides consistently good image quality at the expense of increased bandwidth and storage usage in low light. Limiting the frame
size optimizes bandwidth and storage usage, but may give poor image quality. To prevent increased bandwidth and storage usage,
the maximum frame size should be set to an optimal value.
About stream profiles
A stream profile is a set of predefined stream settings including resolution, compression, frame rate and overlay settings. Stream
profiles can be used:
• When setting up recording using action rules. See Events on page 39 .
• When setting up continuous recording. See Continuous Recording on page 45 .
• In the Live View page – select the stream profile from the Stream profile drop-down list.
To create a new profile or modify an existing profile, go to Setup > Video > Stream Profiles .
To select a default stream profile for the Live View page, go to Setup > Live View Config .
About ONVIF media profiles
An ONVIF media profile consists of a set of configurations that can be used to change media stream settings. ONVIF media profiles
can be used by a client to configure media stream properties.
The ONVIF Media Profiles page lists all preconfigured profiles. These profiles are included in the product for quick setup. You can
add, modify or remove ONVIF media profiles from this page.
Camera Settings
The Video > Camera Settings page provides access to advanced image settings for the Axis product.
Image Appearance
To change Image Appearance go to the menus under Setup > Video > Camera Settings .
Increasing the Color level increases the color saturation. The value 100 gives maximum color saturation and the value 0 gives
minimum color saturation.
The image Brightness can be adjusted in the range 0–100, where a higher value produces a brighter image.
Increasing the Sharpness can increase bandwidth usage. A sharper image might increase image noise especially in low light
conditions. A lower setting reduces image noise, but the whole image will appear less sharp.
The Contrast changes the relative difference between light and dark. It can be adjusted using the slidebar.
Local Contrast applies contrast to a specific area of the image. Use the slider to adjust the contrast, where a higher value produces
an image with high contrast between the dark and light areas and is suitable for scenes with wide dynamic range.
White Balance
To change this setting go to Setup > Video > Camera Settings
20