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Chapter 5: Advanced setup
48
TruVision PTZ 36X Camera User Manual
Function Description
SLOW SHUTTER
Automatic Slow Shutter.
Select to delay the switch to night mode. This feature only works when the
camera is in day (color) mode. It extends the useful range of the color
mode in dark situations and keeps the camera in color mode longer before
having to switch to night mode. However, motion can become blurry when
the shutter is set to auto slow.
Note:
This feature is only available on cameras with day/night capability.
See “IR function (Day/night models only)” on page 51 for more
information.
D.N.R.
Digital Noise Reduction.
Select to improve image quality in low light levels. The default setting is
Off.
With 2D / 3D noise reduction, the processor analyzes the camera images
pixel by pixel and frame by frame to eliminate environmental noise signal
so that the highest quality image can be produced even in low light levels.
3D DNR generates better noise reduction than 2D DNR.
IMAGE INVERSE
Sets whether images will be inverted. See the photos below.
Video Invert Off
Video Invert On
By default images appearing on-screen are upside down as cameras are
usually installed on ceilings, for example. However, by enabling this option
the image can be inverted. This may be required during testing or
demonstrations, for example.
When this function is enabled, the preset mask(s) will be set to off
automatically. See “Privacy mask settings” on page 55 for more
information. The default setting is Off.
FREEZE
Sets whether the most recent camera image will freeze on the screen
while the camera is traveling to a preset position.
Enable this function to freeze the camera image while the camera moves
between preset positions. The camera freezes the last image while it is
moving and displays a static image until it stops moving. Disabling this
function causes the camera to display live video as the camera moves to
the preset position.
The default setting is Off.
See “Preset points settings” on page 37 for further information on setting
preset points and sequences.
APERTURE
Use this to set the definition of objects. When this function is enabled the
edges of objects in an image are more sharply defined. There are 16
levels of adjustment from 01 to 16, where 01 is no enhancement.
This function could be used, for example, when there is text in a camera
image. Enabling the function would make the text appear sharper.
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