Usage: asfr in.pgm [rmin] rmax out.pgm
Description: Alternate sequential filter by reconstruction. Disc-shaped structuring elements of increasing radius, ranging from 1 (or rmin if this parameter is specified) to rmax, are generated. Let D1...Dn be these structuring elements, sorted by increasing radius. Let I0 = in.pgm, the ith intermediate result Ii is obtained by the closure by reconstruction of Ii-1 by the structuring element Di. The result out.pgm contains the final result In.
Types supported: byte 2d
Category: morpho