The Geotaggers' World Atlas
May 26, 2010 10:08 AM Subscribe
posted by emilyd22222 (15 comments total)
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Photographer Eric Fischer created stunning maps of the places that pictures are taken in fifty cities worldwide
. New York
. San Francisco
Fischer took geographical data from Flickr and Picasa search APIs. Using perl scripts, the pictures were sorted by photographer and date/time. The scripts generated PostScript which were then converted to JPEGs using Ghostscript.
He determined the speed at which the photographers were traveling based on their photos’ timestamps and geotags, and plotted them on an OpenStreetMap background layer. Lines are drawn between every two pictures that are reasonably close together in place and time. The color of the lines represent different modes of transportation:
Black is walking (less than 7mph)
Red is bicycling or equivalent speed (less than 19mph)
Blue is motor vehicles on normal roads (less than 43mph)
Green is freeways or rapid transit
Pictures are ordered by the density of photographs around a city center.