id: 02201780
dt: j
an: 02201780
au: Wild, Marcel
ti: The many benefits of putting stack filters into disjunctive or conjunctive
    normal form.
so: Discrete Appl. Math. 149, No. 1-3, 174-191 (2005).
py: 2005
pu: Elsevier Science B.V. (North-Holland), Amsterdam
la: EN
cc: 
ut: Positive Boolean function; Distributive lattice; Stack filter; Nonlinear
    image processing
ci: 
li: doi:10.1016/j.dam.2004.06.027
ab: Summary: Stack filters are nonlinear filters used for image processing
    (examples: median filters, order statistics). In the
    translation-invariant case a stack filter is determined by a positive
    Boolean function $b$. Many important properties of stack filters
    (idempotency, co-idempotency, order relations) can be tested in
    polynomial time if the DNF and/or CNF of $b$ are known.
rv: