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Adding an Edge Tool
Threshold Type
The threshold is used to mark the gray scale transition point. The tool marks the edge when the pixel intensity
crosses the threshold level. From the dropdown list, select one of the following:
Relative
Absolute
Edge Strength
Relative Threshold
Relative threshold is the default, and it finds an edge at a relative pixel intensity. The brightest gray scale level
is 100% and the darkest is 0%. While Relative threshold is more tolerant of light fluctuations between inspections
than other transition types, it may find false edges.
105Banner Engineering Corp. - Minneapolis, MN USA - www.bannerengineering.com
Tel: 763.544.3164
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PresencePLUS Software Tools7/2009
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