<?
  $bildname = $_GET["bildname"];
//  header ("Content-type: image/png");
  $filename="/home/pacs/ahr04/users/texte/daten/sprachkurse-neuseeland.de".$bildname;
  $image = imagecreatefromjpeg($filename);

$mw = 900; // max width
$mh = 170; // max height
$ow = imagesx( $image );
$oh = imagesy( $image );
if( $ow > $mw || $oh > $mh ) 
{
  if( $ow > $oh )
  {
    $tnw = $mw;
    $tnh = $tnw * $oh / $ow;
  } 
  else
  {
    $tnh = $mh;
    $tnw = $tnh * $ow / $oh;
  }
}
else
{
  // although within size restriction, we still do the copy/resize process
  // which can make an animated GIF still
  $tnw = $ow;
  $tnh = $oh;
}

$imtn = imagecreatetruecolor( $tnw, $tnh );
$originaltransparentcolor = imagecolortransparent( $image );
if(
    $originaltransparentcolor >= 0 // -1 for opaque image
    && $originaltransparentcolor < imagecolorstotal( $image )
) {
    $transparentcolor = imagecolorsforindex( $image, $originaltransparentcolor );
    $newtransparentcolor = imagecolorallocate(
       $imtn,
       $transparentcolor['red'],
       $transparentcolor['green'],
       $transparentcolor['blue']
    );
    imagefill( $imtn, 0, 0, $newtransparentcolor );
    // assign the transparent color in the thumbnail image
    imagecolortransparent( $imtn, $newtransparentcolor );
}            

// copy/resize as usual
imagecopyresized( $imtn, $image, 0, 0, 0, 0, $tnw, $tnh, $ow, $oh );
$image = $imtn;
//imagegif( $imtn, 'test.thumbnail.gif' );
//imagedestroy( $image);
//imagedestroy( $imtn );

  
#  $insert = imagecreatefrompng("logo-gross.png");
  $insert = imagecreatefrompng("img/logo.png");
  $image = image_overlap($image, $insert);

function image_overlap($background, $foreground){
   $insertWidth = imagesx($foreground);
   $insertHeight = imagesy($foreground);

   $imageWidth = imagesx($background);
   $imageHeight = imagesy($background);

   $overlapX = $imageWidth-$insertWidth-5;
   $overlapY = $imageHeight-$insertHeight-5;
   $overlapX=0;
   $overlapY=$imageHeight-$insertHeight-5;;
	 //imagecolortransparent($foreground,imagecolorat($foreground,0,0));
	 imagealphablending($background, 1);
	 imagealphablending($foreground, 1);

   imagecopy($background,$foreground,$overlapX,$overlapY,0,0,$insertWidth,$insertHeight);
	 
	 //imagecopymerge($background,$foreground,$overlapX,$overlapY,0,0,$insertWidth,$insertHeight,80);
	 return $background;
}

imagepng($image);
imagedestroy($image);
?>