Ja. Rea et al., FUZZY-LOGIC AND MATHEMATICAL MORPHOLOGY - IMPLEMENTATION BY STACK FILTERS, IEEE transactions on signal processing, 44(1), 1996, pp. 142-147
Mathematical morphology has proven invaluable for signal/image process
ing. Fuzzy theory is enjoying great success in control and signal proc
essing. We show that stack filters, which are already related to morph
ology, require slight modification to implement basic fuzzy operators.
This correspondence therefore provides a fast errorless method for im
plementation of basic fuzzy operations.