All,
I just installed ImageMagick on a client's server (running Windows). When I go to call mogrify to perform a resize, the script does nothing. Here's the relevant portion of the script:
<?
exec("c:\\ImageMagick\\mogrify.exe -resize 320x240 ".$path."");
header("Location: ".$_SERVER['HTTP_REFERER']."");
?>
The image (stored in the $path variable) is never even touched but the user is taken back to their original location.