Index: includes/image.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/image.inc,v
retrieving revision 1.24
diff -u -r1.24 image.inc
--- includes/image.inc	28 Jan 2008 16:05:17 -0000	1.24
+++ includes/image.inc	6 Dec 2010 04:53:37 -0000
@@ -114,7 +114,7 @@
  *    'file_size' - File size in bytes.
  */
 function image_get_info($file) {
-  if (!is_file($file)) {
+  if (!is_file($file) && !is_uploaded_file($filepath)) {
     return FALSE;
   }