[GRASSLIST:2792] image correction tools

[werchowyna at pf.pl]

hello Everyone!

this my first post to GRASSLIST

since it's not strictly GRASSy you may answer directly to me
werchowyna at pf.pl

I'm looking for a Grass module/standalone software (both Linux and Windos)
for radiometric (solar, atmospheric, topographic) correction of aerial and
satellite images  of subalpine and alpine areas

open source/freeware/cheap preferably

can someone help?
any ideas where to ask?

cheers

Maciek Sieczka