Axis P5522 User Manual download pdf (Page 16)

AXIS P5522–E PTZ Dome Network Camera

Video

White balance

White balance is used to make colors in the image appear the same regardless of the color temperature of the light source. The Axis

product can be set to automatically identify the light source and compensate for its color. Alternatively, select the type of light

source from the drop -dow n list. For a description of each available s etting, see the online help

Wide Dynamic Range

Wide dynamic range can improve the exposure when there is a considerable contrast between light and dark areas in the image.

Exposure Settings

Conﬁgure the exposure settings to suit the image quality requirements in relation to lighting, frame rate and bandwidth

considerations.

Select Enable Backlight compensation if a bright spot of light, for example a light bulb, causes other areas in the image to appear

too dark.

The Exposure control setting is used to adapt to the amount of light used. Select one of the following modes:

• Auto is the default settings and can be used in most situations. Shutter speed, Iris and Gain are auto m atically set to

produce optimum image appearance for different lighting situations.

• Manual Shutter allows you to manually adjust the shutter speed. Iris a nd Gain a re set automatically.

• Manual Iris allows you to m anually adjust the iris o pening in the lens. Shutter speed and Gain are set automatically.

• Manual allows you to m anually adjust Shutter speed, Iris and Gain.

Shutter speed - A slower speed in dark conditions will help to produce a brighter image, but will produce fewer frames per second,

which may cause blurry images during motion.

Iris - A larger F-value means less light sensitivity, but a larger de pth of ﬁeld.

Gain - Measured in decibels (dB), gain describes the amount of ampliﬁcation applied to a signal, in this case the visual information

in the image. A high level of ampliﬁcation may p rovide a better image in very low light situations. A high gain will also increase

theamountofimagenoise.

Maxexposuretime-Increasingtheexposuretimewillimproveimagequality, but decrease the frame rate. There may also be

an increase in motion blur.

Max gain - Max gain limits the amount of gain that can be applied to the image in Exposure control modes with automatic

gain adjustment.

Exposure zones - This settings determines which part of the image is used to calculate the exposure. For most situations, the Auto

setting can be used. For particular requirem ent, select a predeﬁned area.

Image settings

Autofocus enabled - Automatic f ocusing is enabled by default. If the focus position is changed manually using the focus bar,

autofocus will be disabled even if enabled here. In this case, use the PTZ control panel to enable autofocus, see PTZ Controls, on page

8 . If required, the focus control can be disabled under PTZ > Advanced > Controls.

Noise reduction - Set to On to enable noise r eduction. Noise reduction may increase the amount of motion blur.

ImagefreezeonPTZ-Select All movements to freeze the image while the cam era is moving during a pan, tilt or zoom operation.

Once the camera reaches its new position, the view from that position is shown. Presets freezes the image only when the camera

moves between preset positions.

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Axis P5522 User Manual Page 16