[R-sig-Geo] read NITF save as geotif

[Arien Lam]

Hi Monica,

It should be straightforward using rgdal. Gtiff output is default,
resolution is preserved by default, GDAL supports nitf (didn't test this)
and geotiff supports x resolution and y resolution separately (x and y
resolution may differ, but are constant for the image). So I expect the
following snippet to work (if it doesn't, show us what goes wrong):

require('rgdal')

GDALinfo('yourfile') # look at res.x and res.y

imagery <- readGDAL('yourfile')
writeGDAL(imagery, 'destinationfile')

GDALinfo('destinationfile')

Hope this helps,

Arien


On Tue, May 19, 2009 20:24, Monica Pisica wrote:
>
> Hi,
>
> I have some NITF  (in lat long) files and i would like to save them as
> geotif. Things would be almost straightforward but .... the pixels in the
> original image are rectangular, and not square, so i cannot grid. Do you
> have any idea how i can go around this?
>
> Thanks, i will really appreciate that.
>
> Monica
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-- 
drs. H.A. (Arien) Lam (Ph.D. student)
Department of Physical Geography
Faculty of Geosciences
Utrecht University, The Netherlands