Markus Neteler wrote:

----

Yes. They have been integrated into i.points.auto:
http://grass.gdf-hannover.de/wiki/Image_processing
-> download link

Note that the code needs an update to GRASS 6 (most is
based on 2 master theses at ITC-irst).
Thanks for the hint, I downloaded it, got grass 6.2.2 src, compiled on
my kubuntu and got it working.
I was able to specify matching lines and the module added some lines
to point list file in the image group   with a new tag (2?) instead of 1.

My question is, how I use this info? Do I need another module like
i.homography (that I did not find out?) or is the standard module
i.rectify able to compute and apply the homographies using these special
format lines?

I also tried to use the semi automatic and automatic match poitns
feature but I did not understand how to use it.
Is this sw the same as referred in the article

http://gisws.media.osaka-cu.ac.jp/grass04/viewpaper.php?id=37

or something different?

Thanks again
               Luigi



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