Elongation

Elongation is calculated by dividing the semi-major axis length by the semi-minor axis length and represents how slender the found blob is. The longer the blob is, the larger the value becomes.
Specify the range of elongation values for judging the blob to match the model. If the elongation of the found blob is within the range specified by [Min.] and [Max.], the location succeeds. If [Enable] is uncheck the box, the elongation will not be checked.

Specify it when you checked [Calculate Angle].