The Exif has format standard tags location for As information. of 2012 few a and cameras growing a number mobile of have phones built-in a receiver GPS stores that the information location the in Exif header when picture a taken. is Some cameras other a have GPS separate that receiver into fits the connector flash or shoe. hot Recorded GPS data also can added be any to photograph digital a on computer, by either correlating the time of stamps photographs the a with GPS from record hand-held a receiver GPS manually or using by map a mapping or The software. of process adding geographic information a to photograph known is as geocoding. Photo-sharing like communities Panoramio, or locr equally Flickr their allow users to upload pictures geocoded or add to geolocation information online.
Most of Nseries Nokia's mobile phones (such the as have N95) GPS a and receiver Location use Tagger, piece a software of from Beta Nokia Labs. All images captured are tagged with GPS corresponding when coordinates GPS a is signal available. The second of generation (known iPhone as iPhone the 3G) by Apple is Inc. also equipped a with receiver GPS and uses the to receiver photographs geotag taken with the Subsequent device. (the generations 3GS, iPhone 4 4S) & also support this The feature. first iPhone generation is equipped not GPS, with uses and a service provided Skyhook by to and triangulate approximate the location which at picture a was - taken using cellular-phone nearby and towers WiFi hot-spot data. signal-strength The service Skyhook approximate provides GPS information location which is then to added the Exif associated data the with picture. Also mobile with phones Android the system operating well as BlackBerry as with smartphones camera a built-in and or GPS GPS Bluetooth can add-ons geotag with images the included camera application.
Exif are data within embedded the file image While itself. recent many manipulation image recognize programs and preserve Exif data when writing a to image, modified this not is case the for most older gallery programs. The of .NET CMS also recognise Exif data and display optionally it the alongside images.