The CGA Map Warper (http://warp.worldmap.harvard.edu/) is a new WorldMap (http://worldmap.harvard.edu) tool for digitally aligning/rectifying/geo-referencing scanned historical or other kinds of maps such as satellite or aerial photography images. Visitors can browse already rectified maps or upload their own maps and georeference them. Any rectified image can then be exported as GeoTIFFs or as web services such as WMS which can be copy/pasted into a WorldMap Map. Read instructions. As with the rest of WorldMap, the georeferencing tool is open source software and available for anyone to use.
November 7, 2011