Selecting Regions
You have to specify the regions in the live image for the following reasons:
- If the code is off center.
- To speed up the verification process on verifiers with large fields of view. Defining a small sampling area increases the speed.
- To restrict a region used to adjust the image brightness when grading according to AIM-DPM (ISO 29158).
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To specify a barcode for verification when more than one barcode is present in the field of view.
If you do not define a region, the verifier uses the whole image.
To define a region, position your cursor where you want the region to start, hold the left mouse button down and begin drawing a box by moving the mouse. Release the button when you are done.
For Data Matrix symbols and QR Codes, draw the region surrounding the entire code. The verifier needs the entire finder pattern, including quiet zones, within the selection to properly grade the code.