TalkPHP - GD Exceeding Memory Size... What?

Fatal error:Allowed memory size of 16777216 bytes exhausted (tried to allocate 2816 bytes) in W:\htdocs\xxx\index.php on line 62

PHP Code:


		
			
function createThumbs($rawImage, $imgDir){
  chdir($imgDir);
  $thumbDir = '/thumbs/';
  if (!file_exists($thumbDir)){
    mkdir($thumbDir);
  }
  $filename = $rawImage;
  $thumbHeight = 300;
  header('(anti-spam-(anti-spam-content-type:)) image/jpeg');
  
  // Get new sizes
  list($width, $height) = getimagesize($filename);
  $ratio = ($height/$width);
  $newHeight = $thumbHeight;
  $newWidth = ($thumbHeight/$ratio);
  
  // Load
  $thumb = imagecreatetruecolor($newWidth, $newHeight);
  $source = imagecreatefromjpeg($filename);  // Line 62
  
  // Resize
  imagecopyresized($thumb, $source, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);
  
  // Output
  imagejpg($thumb, $thumbDir, 100);
}

So... How do I resolve this problem?