Perl, Ghostscript, Flickr API, and Picasa
API software
Locals and Tourists uses geotagging
data from the photo-sharing websites
Flickr and Picasa to visualize the different
areas frequented by locals and tourists
in New York, London, and 124 other
cities, including Taipei, Sydney, Berlin,
and San Jose, California. After harvesting
millions of data points in the form of
photographs, Eric Fischer links them
by photographer and date and then plots
them on a city’s OpenStreetMap grid.
A photographer with many shots of
the same city and a long photo history
can be assumed to be a local and is
represented in blue, and someone
whose photos are taken within a limited
time period is assumed to be a tourist
and represented in red; photographers
whose status can’t be determined
are represented in yellow.
