Note of White Balance Setting: After power on, White Balance setting of Home position is applied. After moving to
preset position, White Balance setting of the position is applied. During Auto Pan and Auto Trace, White Balance
setting for Auto Pan and Auto Trace is applied. When White Balance setting is changed by API, the change is
temporal. To save current White Balance setting for preset position, use camera(num).status=save. To save current
White Balance setting for Auto Pan and Auto Trace, use camera.motion.auto_pan.image=save.
Getting White Balance from VN-V686
Format /api/param?camera.image.white_balance
Example of response camera.image.white_balance=autoW&200 OK
Interpretation Acquire white balance setting. "autoW", "autoN" or "manual" is returned.
Allowed users admin, operator, user
Setting White Balance for VN-V686
Format /api/param?camera.image.white_balance=data
Example /api/param?camera.image.white_balance=autoW
Example of response camera.image.white_balance&202 Accepted(camera.status=save or
camera.motion.auto_pan.image=save)
Interpretation Change white balance setting. Specify "autoW", "autoN", "manual" or "op_auto". "autoW" works in
wide range, and "autoN" works in narrow range of color. "autoW", "autoN" or current manual value is saved to
preset position by the API, camera(num).status=save. "autoW", "autoN" or current manual value is saved to Auto Pan
and Auto Trace by the API, camera.motion.auto_pan.image=save. If "op_auto" is specified, one push auto white
balance control is done, and setting becomes "manual". The change is saved by the API, camera.status=save. If the
change is not saved, the setting is restored by reboot.
Allowed users admin, operator
Getting R-Gain of White Balance from VN-V686
Format /api/param?camera.image.white_balance.r
Example of response camera.image.white_balance.r=s85&200 OK
Interpretation Acquire R-gain of white balance setting. s0 to s255 is returned. The s before number means "step".
Allowed users admin, operator, user
Setting R-Gain of White Balance for VN-V686
Format /api/param?camera.image.white_balance.r=data
Example of response
camera.image.white_balance.r&202 Accepted(camera.status=save or
camera.motion.auto_pan.image=save)
28