use strict;
use Tk;
use Tk::JPEG;

my $fname = "rock.jpg";
open(F, $fname) or die "cant open $fname";
binmode(F);
undef $/;
my $jpeg = <F>;
close(F);

my $win = new MainWindow;
my $image = $win->Photo('-format' => 'jpeg',
			'-data' => $jpeg);
$win->Label(-image=>$image)->pack;

MainLoop;