Embodiments enable searching of portions of objects in images, including programmatically analyzing each image in a collection in order to determine image data that, for individual images in the collection, represents one or more visual characteristics of a portion of an object shown in that image. A...http://www.google.com.au/patents/US20080212899?utm_source=gb-gplus-sharePatent US20080212899 - SYSTEM AND METHOD FOR SEARCH PORTIONS OF OBJECTS IN IMAGES AND FEATURES THEREOF