Huawei TP3106 Commissioning Manual page 167

HUAWEI TP3106&TP3118&TP3118S
Commissioning Guide
Step 6 Adjust video brightness.
Notes:
l There are two exposure modes for brightness adjustment: automatic and manual exposure.
l When adjusting video brightness, it is recommended that you do the following in order:
l In most cases, it is recommended that you set the aperture (Iris VAL) to 16 or 17 and the
To adjust video brightness:
1.
2.
3.
4.
Issue 01 (2015-02-12)
NOTE
If video remains unclear after you manually set the focus value, set the aperture. In most cases, set the
aperture to 10.
– Set the exposure mode to automatic exposure, and record the aperture (Iris VAL) and
brightness gain (Gain VAL) settings.
– Change the exposure mode to manual exposure, and set the aperture (Iris VAL) and the
brightness gain (Gain VAL) based on the previously recorded settings in automatic
exposure mode.
brightness gain (Gain VAL) to 2 or 3.
Run camera setc500CameraParam exposure:0 camport:5 to set the exposure mode to
automatic exposure.
When the brightness meets conferencing requirements, run camctrl camzoomsetting
inquire on to record the aperture (Iris VAL) and brightness gain (Gain VAL) settings.
Run camera setc500CameraParam exposure:1 camport:5 to set the exposure mode to
automatic exposure.
Changing the exposure mode to manual exposure alters the settings of the aperture and the
brightness gain. Therefore, reset the aperture and the gain based on the values recorded in
automatic exposure mode.
l To set the aperture (Iris VAL) to 17, run camera setc500CameraParam iris:17
camport:5.
l To set the brightness gain (Gain VAL) to 2, run camera setc500CameraParam
lightgain:2 camport:5. See the following figure.
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