This tool was first presented in slide view of a folder of JPEG's. Thanks zentara for his input in that thread. Over time, I improved it, now it is much more user friendly and powerful.

Usage:

1. The file pattern was hard coded in the previous version, now it allows you to key in, after key in, just click load button. Once load completed, the first pic in the list will be displayed.
2. You can now manulaly move to next or previous picture by clicking ">" or "<".
3. You can now manulaly jump forward and backward by clicking ">>" or "<<". You can key in the distance in the entry box between < and >.
4. You still can let it automatically move to the next picture, just trun on automode. You can also turn it off, by deselecting the checkbox.
5. With automode, now you can set the speed by enter the delay in between.

use Tk;
use Tk::JPEG;
use File::Glob ':glob';

my $automode = 0;

my @jpgs = bsd_glob("9???.jpg");
my $index = -1;

my $mw = MainWindow->new(title => "JPEG");
$mw->geometry("800x800"); 
my $f = $mw->Frame()->pack(-fill => "both");
$f->Button(-text => "Load", -command => \&load)->pack(-side => "left",
+ -fill => "both");
my $pattern = $f->Entry(-width => 10, -text => '*')->pack(-side => "le
+ft", -fill => "both");
my $step;
$f->Button(-text => "<<", -command => sub {prev_image($step->get())})-
+>pack(-side => "left", -fill => "both");
$f->Button(-text => "<", -command => sub {prev_image(0)})->pack(-side 
+=> "left", -fill => "both");
$step = $f->Entry(-width => 3, -text => 10)->pack(-side => "left", -fi
+ll => "both");
$f->Button(-text => ">", -command => sub {next_image(0)})->pack(-side 
+=> "left", -fill => "both");
$f->Button(-text => ">>", -command => sub {next_image($step->get())})-
+>pack(-side => "left", -fill => "both");
$f->Checkbutton(-text => "Auto Mode", -onvalue => 1, -offvalue => 0, -
+variable => \$automode, -command => sub {if ($automode) {print $autom
+ode; next_image()}})->pack(-side => "left", -fill => "both");
$f->Label(-text => "Delay")->pack(-side => "left", -fill => "both");
my $delay = $f->Entry(-width => 4, -text => 1000)->pack(-side => "left
+", -fill => "both");
$f->Label(-text => "milli-second(s)")->pack(-side => "left", -fill => 
+"both");
my $image = $mw->Photo();
next_image(0);
my $button = $mw->Label(-image => $image)->pack(-side => "top", -fill 
+=> "both");

MainLoop;

sub load {
    @jpgs = bsd_glob($pattern->get());
    $index = -1;
    next_image(0);
}

sub next_image {
    $index += shift;
    $index = $#jpgs if ($index > $#jpgs);
    while ((($index + 1)<= $#jpgs) && !eval {$image->read($jpgs[++ $in
+dex], -shrink); 1}) {
    }
    if ($automode) {
        $mw->after($delay->get(), \&next_image) if (($index + 1) <= $#
+jpgs);
    }
    $mw->configure(-title => $jpgs[$index]);
    $std = undef;
}

sub prev_image {
    $index -= shift;
    $index = 0 if ($index < 0);
    $automode = 0;
    while ((($index - 1) >= 0) && !eval {$image->read($jpgs[-- $index]
+, -shrink); 1}) {
    }
    if ($index >= 0) {
        $mw->configure(-title => $jpgs[$index]);
        $std = undef;
    } 
}
[download]