Cisco 8620, Справочное руководство

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5-12
Cisco Video Surveillance 8620/8630 IP Camera Reference Guide
Chapter 5 Configuration
Media > Image
Image settings
On this page, you can make various image adjustments.
Normal light mode is for normal situations and Profile mode is for special situations.
• Enable to apply these settings at—Appears on the Profile mode tab only. Select the mode this
profile is to apply to: Day mode or Schedule mode. Manually enter a range of time if you choose
Schedule mode.
•
White balance—Adjust the value for the best color temperature.
To adjust the white balance to the best color temperature, follow these steps:.
1.
Place a sheet of paper of white or cooler-color temperature color, such as blue, in front of the
lens, then allow the camera to automatically adjust the color temperature.
2. Click the On button to Fix current value and confirm the setting while the white balance is
being measured.
You may also manually tune the color temperature by pulling the RGain and BGain slide bars.
• Image Adjustment:
–
Brightness—Adjust the image brightness level, which ranges from 0% to 100%.
– Contrast—Adjust the image contrast level, which ranges from 0% to 100%.
–
Saturation—Adjust the image saturation level, which ranges from 0% to 100%.
– Sharpness—Adjust the image sharpness level, which ranges from 0% to 100%.
–
Gamma curve—This option is disabled when the WDR function is enabled. Adjust the image
sharpness level, which ranges from 0.45 to 1, from Detailed to Contrast. You may let firmware
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.
• Defog—Defog helps improve the visibility quality of captured image in poor weather conditions
such as smog, fog, or smoke.
•
Highlight mask—Strong light sources will be masked from the scene, and the image contrast will
be strengthened. This function is useful to prevent the spot-light effects in a high dynamic scene.
False color may be observed around the edges of strong light sources.
• 3d Noise reduction—Adjust the 3D noise reduction strength, which ranges from Low to High.
This applies to the onboard 3D Noise Reduction feature. Use the slider to adjust the reduction
strength. 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.
•
Enable digital image stabilizer—If you experience problems such as vibration on a pole mount, try
enable the image stabilizer.
• Scene mode: deblur—When enabled, shutter time will be fixed 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.
•