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Smart Matching
9.1
Smart Matching
9.1.3
Subtraction Settings
Set the parameters for the subtraction settings.
3
31. Subtraction
Set whether or not to perform subtraction processing. The items cannot be
changed.
32. Subtracted Area Judgment
Set the upper limit of the subtracted area value searched for in the subtraction
processing, and perform an OK/NG judgment.
33. Threshold Value
A threshold value is applied when converting the gray scale difference
between the template and detected area into black and white. The threshold
value can be set in the range 0 to 255.
34. Filter
Once the gray scale image has been binarized, it is possible to use various
filters to effectively eliminate noise outside of the target image and to connect
and separate objects.
See 4.13 Filter setup for details on filters.
35. Deviation
Set whether or not to perform deviation processing. To perform deviation
processing, the subtraction processing must be set to execute, Yes. If the
Imagechecker is not set to perform deviation processing, deviation data
cannot be updated, restored, or reset.
9 − 10
OCR Type A230
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