chromasens allPIXA, Manual

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CD40047_R04_allPIXA_User-Manual.docx 141
Show white reference border
Name
Name Display white reference borders in the image
Function
Displays the border of the control zone with blue lines in the image.
Channels
All (Blue: 255; Red and Green: 0)
Unit Bool
Dependency None
Notes
Function has to be switched off for taking reference images regarding to black
and white correction.
Camera: Value: Function:
Lower limit
All 0 Off
Upper limit
All 1 On
11.4 White control
Target white reference values
Name
Name Target white reference values
Function
Video value for the desired value of the closed loop control for white balancing
Channels
Red, Green, Blue
Odd; Even
Front; Rear
Unit Integer
Linear
Dependency
Only takes effect if the Enable continuous white control check box is selected, or
during a white reference operation if you click Perform white reference on the
toolbar.
Notes

Refers to the white control mark. Inside this area the closed loop control tries
to adjust gain to reach these desired values.

Value is a 10-bit video value, output range of the image at the CameraLink
port is usually 8-bit range
Camera: Value:
Lower limit All 0
Upper limit All 1023
– dark reference value
This parameter refers to the reference values labeled with (1) in the diagram of section 4.10 .
NOTE I The maximum reachable value for the target values is
Target values = 1023 - max dark reference value (with active black-level
correction).
The typical dark reference values are about 4 …16 (in 8 bit) in
the raw image date. The maximum dark reference value is 64 (in 8 bit)
NOTE II The level of the target value has to be adapted to the position of the white
reference control zone (see
Figure 38 ). For zone 1, the values have to be
set to a lower value than for zone 2. If the target values for zone 1 are too
high, this results in saturation in the i
mage’s center.