Rockwell Automation 5370-CVIM2 Module - Manual (Page 176)

5 Chapter Chapter 6
Reference Tools
6–17
Figure 6.15 Example: Maximum Objects (Binary and Gray Scale)
Adjacent
pixels
Adjacent
pixels
Midpoint
Leading
edge
Maximum object
Midpoint
Leading
Edge
Maximum object
A
B
Binary gaging mode:
Gray scale gaging mode:
Gray scale gaging mode –– The maximum object is the one with greatest
number of consecutive pixels (between the first and last detected edges) that
are either lighter than or darker than the adjacent pixels –– the pixels on
both sides of the object. In example (B), above, the leftmost object has the
greatest number of consecutive pixels that are, in this case, darker than the
adjacent pixels.
Max F. Object –– The maximum foreground object feature mode enables
you to specify a reference point on a reference line axis from the following
points on the axis:
•
The leading edge of the maximum–size object along the axis.
•
The midpoint between the leading edge and the trailing edge of the
maximum–size object.