[OSM-talk] Howto calibrate aerial images for OpenStreetMap?

[Valent Turkovic]

How can I calibrate aerial photos or old maps?

If someone has experience with his own aerial imagery or old (out of
copyright) maps please share your experience.
I looked on OSM wiki and there is really little, almost none
information on how to do this.

I'm about to get some aerial photos that a friend of mine who is a
pilot will donate them to OSM.

I looked on WIKI:
http://wiki.openstreetmap.org/wiki/Out-of-copyright_maps#How_to_use_old_maps
but there is says that there is a help section on gpsu.co.uk website
that has instruction for calibrating bitmap images. I don't see it
anywhere on that site :(

Any help is much appreciated.

Cheers,
Valent.

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