A method of locating a non-textual region of an electronic document or image that matches a user-defined description of the region includes comparing non-textual regions of each of a corpus of electronic documents with the user-defined description and identifying non-textual regions of the electronic...http://www.google.com/patents/US7050630?utm_source=gb-gplus-sharePatent US7050630 - System and method of locating a non-textual region of an electronic document or image that matches a user-defined description of the region
