Chromasens CD40127_R02 allPIXA_pro_User Manual.docx
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8.4.3 Prepare camera to acquire a white (gain) reference
The creation of shading reference is only necessary during commissioning or if the gain values
are changed considerably.
Make sure that all changes made to your current setting are saved
permanently to the camera before you use the Reference wizard. Otherwise,
all changes get lost!
1
Get the camera to the desired working point
Place a white reference in front of the camera
Check the lighting and focusing
Disable continuous white control
Save the parameters to the camera
Optional:
Activate black-level correction
Optional:
Perform a white balancing
Note:
The white reference target has to be placed in the best focus plane of the camera.
Therefore any features on its surface (for example dust, scratches) end up in the calibration
profile of the camera. To avoid this if you use a static (non-moving) white reference target,
use a clean white ceramic or plastic material, not paper. Ideally, the white object should
move during the calibration process because the movement results in an averaging process
and the camera diminishes the effects on any small variation in the white reference.
2
Start the reference wizard
On the toolbar, click
Start reference wizard
.
3
Select reference type and image source
Click
White (flat-field) level reference
.
Click
Prepare camera to acquire a raw image
:
Click
Next
.
