Geometric Matching FAQs

What does the red pointer in the template image indicate?

The red pointer indicates the pixel of the template whose coordinate location you want returned when the step finds matches of the template in the inspection image.

What is the difference between the green and red regions?

The green region indicates the area of the image in which you want to search for matches to the template. The red region indicates an area that matches the template.

Additional edges are detected in the image, besides the curves of my template. Does this affect the accuracy of the matching?

Superfluous edge detection can negatively affect the accuracy of geometric matching. Adjust the curve parameters so that the algorithm detects only the curves of your template object. If the algorithm detects additional edges because of glare for example, use the NI Vision Template Editor to define regions whose edges you want the function to ignore.