[GRASS-user] Geometric correction with GRASS

[Nikos Alexandris]

Josep:

> >> I'm working with an SPOT scene, which is preprocessed at the level 1A.
> >> Now I need to do a geometric correction of this scene, not only with
> >> control points but also with a Digital Terrain Model. It's possible to
> >> do this in GRASS? How?

Nikos:

> > Of course it is possible. Please, get your grip on the respective
> > GRASS-wiki page and the related manuals.
> > Pointers:
> > <http://grasswiki.osgeo.org/wiki/Georeferencing>
> > <http://grass.osgeo.org/grass64/manuals/gm_georect.html>
> > <http://grass.osgeo.org/grass64/manuals/wxGUI.GCP_Manager.html>
> > and, of course
> > <http://grass.osgeo.org/grass64/manuals/i.ortho.photo.html>

Moritz:

> i.ortho.photo is used for aerial photography, not for satellite imagery.
> There is currently no orthorectification of satellite images in GRASS.
> It is on the ToDo list though:
> http://trac.osgeo.org/grass/wiki/Grass7/ImageryLib => "Implement/finish
> linewise ortho-rectification of satellite data"

Ouch! Apologies for misfiring... :-(

Nikos