Reference Manual
Chapter
5
IVC-2D
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219
Find Line Edge
scale values (lower right in the figure above). If you can’t see a horizontal line, pull it from
the top (upper threshold) or bottom (lower threshold) of the plot area.
Input parameter Filter in pixels allows on average over up to 10 pixels in line direction. This
option is available with Evaluation Method 2: Detect absolute change of gray scale values
only.
To select an upper limit of how many found points should be stored in the table and the
table index for the first entry edit the input boxes with the caption Table settings.
Figure – Screenshot of the input boxes to set the Input Parameters.
Results
The total number of found transitions is displayed in the field Number of transitions found.
A table shows the table index number and the coordinates that are stored in the table
beginning with the first found pixel. The maximum number of shown and stored coordina-
tes depends on the selected value in the input field Max number of transitions.
Figure – Screenshot of the result table
Evaluation Method 2: Detect
absolute change of gray values
Selected geometrical inter-
operation for the start and
end points are Cartesian
coordinates
Line start point:
X and Y coordinates
Line end point:
X and Y coordinates
Values of coordinates start at table
index 1.
Up to 10 found points will be
Gray values are averaged out of
“one” pixel along the line.
