chromasens allPIXA, Руководство пользователя

Страница: 119 / 199

CD40047_R04_allPIXA_User-Manual.docx 119
Creating a white (gain) reference internally
The creation of shading reference is only necessary during commissioning or if the gain values
are changed considerably.
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 white-balancing
Note: The white reference target must 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, and select reference type and image source

On the toolbar, click Start reference wizard .

Click White (flat-field) level reference .

Click Create reference internally :

Click Next .