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C2924M (4/05) 39
Manual White Balance Calibration
In some installations, use manual white balance to render the most accurate image color possible. Mixed color applications may affect the
amount of color adjustment. For example, a small white object on a large blue surface may have a reddish tint. Manual white balance uses a
calibration image to identify the correct white level. The camera then uses this white level when adjusting overall image color.
NOTE: Manual white balance is recommended only for indoor applications that have a single primary light source.
Example: A CCC1390H camera is installed in a pan/tilt enclosure in a clothing store in a shopping mall. Mixed colors are located throughout the
store. Overhead lights provide the primary illumination, but some light also enters the store from the mall. As the camera pans a section filled with
blue clothing, the camera may redden the image to compensate for the blue. When properly calibrated, the camera will not try to adjust scenes
with predominant amounts of red or blue.
To calibrate the manual white balance:
1. Focus the camera on a neutral color scene. Select a neutral scene with the following characteristics:
• Little or no black
• Not predominantly red
• Not predominantly blue
• No direct light source, such as a lamp or a window
2. Select WHITE BALANCE on the FUNCTION SETTINGS menu.
3. Select AUTO. This calibrates the white balance gain to the neutral scene.
4. Change WHITE BALANCE from AUTO to MANUAL. This locks the white balance
gain into camera memory.
NOTE: If you change WHITE BALANCE from MANUAL to a different mode, the stored
manual white balance settings are erased. You will have to perform this procedure again.
5. Select EXIT to close the setup menus.
6. Focus the camera on the target scene.
7. As soon as you finish customizing this and all other camera settings, save your custom settings into the CUSTOM profile. This protects them
in case the camera loses power or must be restarted (refer to Profiles for more information).
MAIN MENU
PROFILES >
EXPOSURE SETTINGS >
FUNCTION SETTINGS >
CAMERA SETUP >
AI AUTO ADJUSTMENT >
PIXEL CORRECTION >
SYSTEM INFORMATION >
EXIT
FUNCTION SETTINGS
LINE SYNC >
WHITE BALANCE > AUTO
MANUAL RED/BLUE >
GAMMA > 60%(NORM)
SHARPNESS >
E-ZOOM >
MASKING >
TITLE >
BACK EXIT