Banner PresencePLUS P4 GEO 1.3 Series - Manual (Page 100)

Description Field
• Bright or Dark finds any edge.
Graph Tab
When Edge Strength is selected in the Input tab, the software displays the Graph tab. This
tab provides similar information to the Input tab, but displays separate Edge Profile and
Edge Strength graphs for easier viewing.
The Edge Profile graph represents the absolute gray scale level across the tool ROI.
The Edge Strength graph represents the change in gray scale along the tool ROI. Edge
Strength detects an edge when the rate of change (solid red line on the graph) crosses the
selected intensity change amount (dashed green lines on the screen).
A bright-to-dark transition has a negative edge strength value, and a dark-to-bright transition
has a positive edge strength value. When the Edge Strength level is adjusted, both the
negative and positive green dotted lines will adjust together.
Filters
P/N 000000 Banner Engineering Corp. - Minneapolis, MN USA - www.bannerengineering.com
Tel: 763.544.3164
100
7/2009 PresencePLUS Software Tools