The method corresponds to the measurement by a slide gauge.
It is defined as the distance between two parallel tangents of the particle.
The minimum Feret diameter is often used as the diameter equivalent to a sieve analysis.
Example: Only objects with an Feret min = 31–523um and max in the range 134–674um will be included in the counting.
These parameters, min and max, can be used to exclude the counted objects via the Ferrets diameter interval.
Please note that the calculation of the min Feret is complicated, and thus a little slow
