Codice PHP:
<?
$imgSource
="/var/www/htdocs/immobiliare/img/big/default.jpg";
$imgSource imagecreatefromjpeg($imgSource); // <------
$srcX=0;
$srcY=0;
$srcW=200;
$srcH=200;
$destX=0;
$destY=0;
$dstH=75;
$dstW=100;

imagecopyresized($imgDest$imgSource$destX$destY$srcX$srcY$dstW$dstH$srcW$srcH);
header("Content-type: image/jpg");

imagejpeg($imgDest);
?>
questa mancava, se ci sono altri errori non so'