Item
Description
Flicker
reduction
Compensates for flickering caused by discrepancies between the frame
rate (video standard) and the AC frequency of the lighting.
11.1.6
Day/Night Control
With Day/Night Control, the camera can still catch clear images at night. In daylight, the IR
cut filter blocks infrared light for clear images. At night, the IR cut filter is removed to utilise
infrared light; the displayed images will be in black and white.
Video > Image > Day/Night Control
Item
Description
Day/night mode
Auto
Enables day/night switching. The internal circuit
automatically decides when to place/remove the
IR cut filter based on the value of the lighting
conditions as determined by the Transition
threshold.
Day
Activates the IR cut filter. Camera is set to colour
mode.
Night
Removes the IR cut filter. Camera is set to black
and white mode.
Transition
threshold
Auto mode only
Sets the threshold for the camera to place/remove
the IR cut filter. With a higher threshold value, the
camera switches to night mode at lower light
levels (higher gain value). With a lower threshold
value, the camera switches to night mode at
higher light levels (lower gain value).
Transition speed
Auto mode only
Sets the delay the camera takes into account
when switching from day to night mode and vice
versa. Using a higher value here prevents the
camera to trigger on for example headlights of a
car temporary shining directly into the camera at
night.
11.1.7
White Balance
A digital camera needs to find a reference color temperature, which is a way of measuring the
colour of a light source as a basis for calculating all the other colours. The unit for measuring
this ratio is in degree Kelvin (K). You can select one of the white balance control modes
according to the installation condition. The following table shows the colour temperature of
some typical light sources.
Video
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