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Based on this. This uses GD to produce a more precise graphical output.
$_="JUST ANOTHER PERL HACKER,";use GD;$i=new GD::Image(113,350);$i->fi +ll (0,0,$i->colorAllocate(255,255,255));s#.{5}#$d=5;@a=($q=0,map{$d+=$f++ +%2 ?3*$_:$_;$_;}map{split//}unpack C5,$&);push@a,10-$d%10;@g=(3,5,23,join +( "",@a)=~/(.{6})/,63,$');$b=$i->colorAllocate(0,0,0);$t=9;map{$h=$q++%7 +? 50:60;$i->line(++$t,$y+9,$t,$y+$h,$_?$b:$w)for split//,/1/?$_.$i->stri +ng (gdTinyFont,shift@g,53+$y,shift@g,$b):do{$l=$z=unpack B7,pack v,unpack +(x .$_.C,"5A;eKYWc_3")-40<<1;$z=~s/./1^$&/eg;$m=reverse$z;${qw.l m m l l +m. [$c++%12]||z}}}101,splice(@a,0,6,"01010"),@a,101;$y+=70#eg;print$i->pn +g
The output should be piped into a png file thusly:
# perl ean-13.pl > out.png
enjoy.
al
ps. for those without GD, the image can be seen on my homenode

In reply to GD && EAN-13 by teamster_jr

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