Banner PresencePLUS P4 EDGE 1.3 Series Bedienungsanleitung Seite 106

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DescriptionField/Graph
Percent is displayed when the Type is Relative. Choose the percentage value at
which the edge should be marked.
Percent
Polarity
Bright to Dark finds edges that start above the threshold value and cross below
the threshold value.
Dark to Bright finds edges that start below the threshold value and cross above
the threshold value.
Bright or Dark finds any edge.
In the Edge Profile graph displayed when the Relative threshold is selected, the
red line shows the percentage pixel intensity relative to the green threshold line.
The threshold line will move up or down with the percent value.
Edge Profile Graph
Absolute Threshold
Absolute threshold finds an edge at a specific gray scale level. While Absolute threshold is less likely to find
a false edge than Relative Threshold, it may miss edges if the light level changes between inspections.
DescriptionField/Graph
Value is displayed when Type is Absolute. Enter a specific gray scale value from
0 to 255.
Value
Polarity
Bright to Dark finds edges that start above the threshold value and cross below
the threshold value.
Dark to Bright finds edges that start below the threshold value and cross above
the threshold value.
P/N 000000Banner Engineering Corp. - Minneapolis, MN USA - www.bannerengineering.com
Tel: 763.544.3164
106
7/2009PresencePLUS Software Tools
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