[Freegis-list] Engauge Digitizer

[Maurizio Napolitano]

Direct freshmeat
http://freshmeat.net/projects/engauge/

Engauge Digitizer is digitizing software that converts an image
showing a graph or map into numbers. The image file can come from a
scanner, digital camera, or screenshot. The numbers can be read on the
screen, and written or copied to a spreadsheet. Highlights for
beginners include an intuitive interface and extensive
context-sensitive documentation. Highlights for experts include
compensation for image distortion, cartesian and polar coordinates,
linear and logarithmic coordinates, automatic scanning, graphical
previews, and browser help.

http://digitizer.sourceforge.net/