[GRASS-user] Rectify an image

[Nikos Dumakis]

Greetings
I have an image without any GCP's but, teorethically it's in WGS84. I have
all pixel positions outside that file. My question is, what should I do in
GRASS to rectify/project this image? I thought in two solutions
1- import, using r.in.gdal in a XY projection and rectify. Is it possible to
rectify a raster, with i.rectify, using a file outside GRASS (e.g. a text
file?)
2- use GDAL to add GCP's points to file and then import to grass already
rectified..

Which one is the best solution?
THank you

Nikos
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