Caliper Caliper The Caliper tool identifies and measures the gap between one or more edge pairs on an object. The Caliper uses pixel grey-level values within the region of interest to build pro- jections needed for edge detection. After the Caliper detects potential edges, it determines which edge pairs are valid by applying the constraints that are configured for each edge pair. Finally, the Caliper scores and measures each valid edge pair. To create a Caliper tool, right-click in the Tree structure, then select: New > Vision > Tool > Caliper Caliper Object Editor ACEUser's Guide, 3.6.x, 18316-000 Rev A Page 442 Object Definition Area The area of the located dot