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VIVOTEK
User's Manual - 67
■ Sharpness:
Adjust the image sharpness level, which ranges from 0% to 100%.
■ Gamma curve:
Adjust the image sharpness level, which ranges from 0.45 to
1, from Detailed to
Contrast
. You may let rmware Optimize your display or select the Manual mode, and pull the slide bar
pointer to change the preferred level of Gamma correction towards higher contrast or towards the higher
luminance for detailed expression for both dark and lighted areas of an image.
This option is disabled when the WDR feature is enabled.
Defog: Defog helps improve the visibility quality of captured image in poor weather conditions such as
smog, fog, or smoke.
■ Noise reduction
■ Enable noise reduction: Check to enable noise reduction in order to reduce noises and flickers in
image. This applies to the onboard 3D Noise Reduction feature. Use the pull-down menu to adjust
the reduction strength. Note that applying this function to the video channel will consume system
computing power.
3D Noise Reduction is mostly applied in low-light conditions. When enabled in a low-light condition
with fast moving objects, trails of after-images may occur. You may then select a lower strength level
or disable the function.
You can click Restore to recall the original settings without incorporating the changes. When completed
with the settings on this page, click Save to enable the setting. You can also click on the Prole mode to
adjust all settings above in a tabbed window for special lighting conditions at a specic period of time.
Enable to apply these settings at:
Select the mode this profile to apply to: Schedule mode. Please
manually enter a range of time if you choose Schedule mode. Then check Save to take effect.
Hightlight mask: If there are strong light sources in the scene, the system will block out the strong light
sources, and eliminate the effects from the lighting sources. For example, a strong lighting source
can mislead the system to consider the whole scene is well lit, while the other areas is in fact poorly
represented.
Scene mode: deblur
■
When enabled, shutter time will be xed to 1/120 second to reduce image smear. This feature
is designed to apply with human movement at the pace of 1.4~2.2m/s. The deblur function
is related to Motion detection where motion-alerted pixels need to be suppressed in order to
increase the accuracy of motion detection. In certain conditions, shadows or light changes can
all cause false alarms in motion detection.
The deblur function uses the same detection window as that of the Motion detection.
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