Chromasens CD40127_R02 allPIXA_pro_User Manual.docx
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9.4.5 White control mode
Name
Name
White control mode
Function
Set the mode of the white control function
Channels
All
Unit
Dependency
It is only available if the
Enable continuous white control
has been
selected.
Notes
Function only available if
User level
has been set to
Guru
.
Camera:
Functions:
All
Use
sync
mode:
acquiring
references
is
synchronized with area scan
All
Stop gain control if level <”Stop gain control” * last
gain value
All
Stop gain control by variance value
Two modes for white control are available:
Gain control using area mode:
Gain control uses the video levels within the specified white reference mark.
Use maximum video level:
Gain control uses the maximum video level independently of the position of
the white reference mark.
Three options are available:
Use sync mode:
…
If you use this option, white control sets the white reference into the image
regarding to the necessary frame trigger.
Stop gain control if level <
‘Stop gain control’ * last gain value
If the value of the white reference video level is lower than the specified
value of
Gain control stop factor
, the closed-loop control for the white
balancing could be paused by using this option (for example if the light on
the white reference is lowered without any present document (stray-light
from the document).
Stop gain control by variance value
If the medium variance of the white reference video level is higher than the
specified value of
Set gain control stop by variance
, the closed-loop
control for the white balancing can be paused by use of this option. For
experienced users only.
