Minimum feret of a region.

The minimum feret of a region is determined on the basis of distance measurements. The calculation uses the method of rotating calipers. Two parallel tangent lines are positioned on opposite sides of the object and rotated around the object to determine the smallest distance. The corresponding distance is measured for each angle position. The minimum value determined is the minimum feret.

• Unit: Unit of the scaling assigned to the image (e.g. μm)