Festo SBO***-Q Series, Руководство пользователя

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4. Commissioning
4-19
Festo P.BE-SBO-Q-EN en 1602e
4.8 System parameters for preprocessing
Preprocessing This involves processing the image data for the camera image
in three consecutive steps.
In preprocessing, the image is digitally optimised and
changed. The characteristics to be checked should be
optimally highlighted to permit reliable checking of parts.
The camera image is the image captured by the Compact
Vision System sensor, taking into account the system para­
meters set.
The images “Preprocessing 1 to 3” show the results of the
corresponding preprocessing steps, taking into account the
system parameters set.
The parts check takes place on the basis of the camera image
and the image “Preprocessing 3”, whereby the test part must
be depicted as a black object in Preprocessing 3; white sur­
faces represent the background.
Switch the display of the various images in the “Live Image”
window on and off.
The preprocessing steps must be configured in the “Live
Image” window in CheckKon so that the characteristics to be
checked in the image “Preprocessing 3” are reliably depicted.
In addition, preprocessing should remove the areas of the
image that are not part of the check part or of the character­
istics to be checked, e.g. background, workpiece carrier, etc.,
as they can hinder determination of the check features.
The preprocessing functions available depend on the firm­
ware used.