highway_bost403.jpgspatial_envelope_256x256_static_8outdoorcategoriesAude Oliva and Antonio Torralba, IJCV 2001, vol 42(3).LabelMe Webtoolroad0003-Nov-2006 05:40:170anonymous21985117010014911614411814412013813213812914012714313614415914519315422615925616325625622562202green field0003-Nov-2006 05:40:171anonymous21307213311913415213413113811913811714395150531682198green field0003-Nov-2006 05:40:172anonymous256124195129166131152134132138127141139144159145192153255163hills0003-Nov-2006 05:40:173anonymous21183312165123981231241231851212551172551231671301521332130sky0003-Nov-2006 05:40:464anonymous256025611614612261123211700