A FORTRAN-77 program generator.f presented to generate random percolat
ion clusters. Cluster sizes up to n = 500 pixels can be generated. Ran
dom numbers are generated using the Manly random number generator and
clock time. A second FORTRAN-77 program cluster.f enables the identifi
cation of the different clusters out of a set of randomly generated cl
usters. Using cluster.f, the 63 possible different clusters for n = 5
are selected. The percolation clusters are generated and presented usi
ng a matrix approach. (C) 1998 Elsevier Science Inc. All rights reserv
ed.