Rockwell Automation 5370-CVIM2 Module - Manual (Page 278)

Chapter 7
Inspection Tools
7–40
areas of objects 2 through 9 lie between these two values. Thus, the window
measures the largest ten objects.
In example (C), the “
)” symbol appears on the “
Height ” line. The numbers
1 through 10 identify the objects on the basis of their height –– in ascending
order –– from the shortest to the tallest. In this example, the shortest object
(1) is 34 pixels in height, and the tallest object (10) is 38 pixels in height.
The heights of objects 2 through 9 lie between these two values. Thus, the
window measures the shortest ten objects.
NOTE: The status of a measurement function ( Y = active; N = inactive) has
no effect on the sorting function. Also, the maximum possible number of
numbered objects (when all contours are recognized as objects) can be
limited by the current
Max Results setting. Thus, in the examples above, all
15 contours are recognized as objects, but since the Max Results setting is
10, only the first ten are numbered and measured.
Contour Options Panel
When you pick the button in the Target panel, the Contour Options
selection panel appears, as shown by Figure 7.35.
Figure 7.35 Selecting Contour Options Panel
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Here is a brief description of the fields and button in the Contour Options
selection panel.
•
Border –– This field selects either a white border or a black border for
the window, with the following consequences:
— If the border color selection is Black , any black group of pixels that
touches the border is not a contour.
— If the border color selection is White , any white group of pixels that
touches the border is not a contour.