[GRASS-user] Using GRASS to ortho-rectify satellite imagery

[Alex Mandel]

Mike Willis wrote:
>>> Hi can anyone quickly tell me if it is possible to orthorectify
>>> satellite imagery using GRASS?
>>>
>>> Cheers!
>>>
>>> Mike Willis
> 
>> what about i.rectify - Rectifies an image by computing a coordinate transformation for each pixel in the >image based on the control points. ?
>>
>> http://grass.osgeo.org/grass64/manuals/html64_user/i.rectify.html
>>
>> best regards
>> helli
> 
> Maybe - but my real purpose is to remove distortions caused by
> topography. Plain rectification will not achieve that. I looked at
> orthophoto but a camera model is required (air photos). I am needing
> to do satellite images (usually, but not always ASTER).
> 
> Mike

Maybe this info will help
http://josef.fsv.cvut.cz/WIKI/grass-osgeo/index.php/Image_processing

Alex