Index: wp-admin/includes/image.php
===================================================================
--- wp-admin/includes/image.php	(revision 33915)
+++ wp-admin/includes/image.php	(working copy)
@@ -275,6 +275,7 @@
 		'shutter_speed' => 0,
 		'title' => '',
 		'orientation' => 0,
+		'keywords' => array(),
 	);
 
 	/*
@@ -323,6 +324,9 @@
 
 			if ( ! empty( $iptc['2#116'][0] ) ) // copyright
 				$meta['copyright'] = trim( $iptc['2#116'][0] );
+				
+			if ( ! empty( $iptc['2#025'][0] ) ) // keywords array
+				$meta['keywords'] = array_values( $iptc['2#025'] );
 		 }
 	}
 
@@ -413,7 +417,7 @@
 	 * @param string $file            Path to image file.
 	 * @param int    $sourceImageType Type of image.
 	 */
-	return apply_filters( 'wp_read_image_metadata', $meta, $file, $sourceImageType );
+	return apply_filters( 'wp_read_image_metadata', $meta, $iptc, $file, $sourceImageType );
 
 }