Chapter 5
IMAQ Vision for LabWindows/CVI User Manual
5-4
ni.com
Figure 5-2.
Coordinate Systems of a Reference Image and Inspection Image
b.
If you use
imaqFindTransformRects()
, specify two
rectangles, each containing one separate, straight boundary of the
object, as shown in Figure 5-3. The boundaries cannot be parallel.
The regions must be large enough to include the boundaries in all
the images you want to inspect.
1
Search Area for the Coordinate System
2
Object Edges
3
Origin of the Coordinate System
4
Measurement Area
1
4
1
4
a.
b.
2
3
3
2
