4a. Max Dissimilarity is the difference between the found contour and the taught contour.
5a. Minimum ovality is the acceptable circularity of a contour (1 is an ideal circle, 0 is a flat line).
RecipesVision 9002426-065-17p.50
Liner interface — dissimilarity and ovality
Taught vs found contour; 1.0 is a perfect circle.