#!/usr/bin/perl use strict; my @files = glob("HistEq2/*.pgm"); `mkdir -p Gamma/`; foreach my $f (@files) { my $o = $f; $o =~ s/^.*\///g; $o = "Gamma/$o"; print "$f -> $o\n"; `pnmgamma 1.3 $f | pnmsmooth > $o`; }