Datalogic Scanning Matrix 400 - Manual (Page 129)

SOFTWARE CONFIGURATION
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8
Image Filter
Sets the filter to be applied to the image before being processed. This parameter can be
used to successfully decode particular ink-spread printed codes (ex. direct part mark codes).
A different filter can be applied to each Image Acquisition Setting.
The Erode Filter enlarges the image dark zones to increase readability.
Before - No Read After - Readable
Erode
The Dilate Filter enlarges the image white zones to increase readability.
Before - No Read After - Readable
Dilate
The Close filter eliminates dark areas (defects) in the white zones of the image.
The Open filter eliminates white areas (defects) in the dark zones of the image.