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Adept AdeptSight User Guide User Manual

Page 383

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scoring method restricts the search so that only results for valid edge pairs are
returned.

There are two types of parameters that affect the choice of valid edges: Polarity
and Edge Score Constraints.

Polarity

Polarity corresponds to the change in light values, moving from left to right in
the display, along the X-Axis in the region of interest. The tool applies the Polar-
ity constraint before applying edge-score Constraints.

Polarity does not affect the Edge Score, but only edges that meet the selected
Polarity are output as valid edges, regardless of their scores.

l

Dark to Light will only accept edges occurring at transitions from a dark
area to a light area.

l

Light to Dark will only accept edges occurring at transitions from a light
area to a dark area.

l

Either will accept any edge, regardless of polarity.

Edge Polarity

Edge Score Constraints

There are two types of constraints: Position and Magnitude. You can set the
tool to use only one constraint or both. A graphical function editor is provided
for viewing and setting each type of constraint.

l

If only one constraint is selected, edges are scored based on the selected
constraint.

l

If both constraints are selected, each constraint accounts for 50% of the
edge score.

Configuring Edge Locator Properties

AdeptSight User's Guide, Version 3.2.x, Updated: 8/23/2012

Page 383