/**
  * Enrich node metadata
  * @param AJXP_Node $ajxpNode
  */
 public function extractImageMetadata(&$ajxpNode)
 {
     $currentPath = $ajxpNode->getUrl();
     $wrapperClassName = $ajxpNode->wrapperClassName;
     $isImage = AJXP_Utils::is_image($currentPath);
     $ajxpNode->is_image = $isImage;
     if (!$isImage) {
         return;
     }
     $setRemote = false;
     $remoteWrappers = $this->getFilteredOption("META_EXTRACTION_REMOTEWRAPPERS");
     if (is_string($remoteWrappers)) {
         $remoteWrappers = explode(",", $remoteWrappers);
     }
     $remoteThreshold = $this->getFilteredOption("META_EXTRACTION_THRESHOLD");
     if (in_array($wrapperClassName, $remoteWrappers)) {
         if ($remoteThreshold != 0 && isset($ajxpNode->bytesize)) {
             $setRemote = $ajxpNode->bytesize > $remoteThreshold;
         } else {
             $setRemote = true;
         }
     }
     if ($isImage) {
         if ($setRemote) {
             $ajxpNode->image_type = "N/A";
             $ajxpNode->image_width = "N/A";
             $ajxpNode->image_height = "N/A";
             $ajxpNode->readable_dimension = "";
         } else {
             $realFile = $ajxpNode->getRealFile();
             list($width, $height, $type, $attr) = @getimagesize($realFile);
             if ($this->getFilteredOption("EXIF_ROTATION")) {
                 require_once AJXP_INSTALL_PATH . "/plugins/editor.diaporama/PThumb.lib.php";
                 $pThumb = new PThumb($this->getFilteredOption["THUMBNAIL_QUALITY"], $this->getFilteredOption("EXIF_ROTATION"));
                 $orientation = $pThumb->exiforientation($realFile, false);
                 if ($pThumb->rotationsupported($orientation)) {
                     $ajxpNode->image_exif_orientation = $orientation;
                     if ($orientation > 4) {
                         $tmp = $height;
                         $height = $width;
                         $width = $tmp;
                     }
                 }
             }
             $ajxpNode->image_type = image_type_to_mime_type($type);
             $ajxpNode->image_width = $width;
             $ajxpNode->image_height = $height;
             $ajxpNode->readable_dimension = $width . "px X " . $height . "px";
         }
     }
     //$this->logDebug("CURRENT NODE IN EXTRACT IMAGE METADATA ", $ajxpNode);
 }