Point Finder either at a light to dark or dark to light transition in grey-level values. This mode will increase processing time. l Don’t Care: The Point Finder searches only for point instances occurring at any transition in grey-level values, including reversals in contrast, for example, on an unevenly colored background. Search Mode Search Mode sets the mode used by the tool to generate and select a hypo- thesis. The available mode are: l Point Closest To Guideline: Selects the point hypothesis closest to the Guideline. l Point With Maximum Negative X Offset: Selects the point hypothesis closest to the region of interest boundary that is at maximum negative X offset.
l Point With Maximum Positive X Offset: Selects the point hypothesis closest to the region of interest boundary that is at maximum positive X offset. Region of Interest (ROI) The region of interest is the area in which the tool carries out its process. Most tool position parameters can be set through the region of interest section of the tool interface. The fol- lowing parameters define the tool region of interest. Offset Offset is the center of the ROI, defined by: Relative To Relative To specifies the tool that will provide the input to this tool. The tool can be dragged from the Tree structure and dropped into this field.
Search Area Search Area is the size of the region of interest is defined by: ACEUser's Guide, 3.6.x, 18316-000 Rev A Page 595 X X coordinate of the center of the region of interest Y Y coordinate of the center of the region of interest Degrees Angle of rotation of the region of interest