[R-sig-Geo] georeferencing image from scratch

[Dominik Schneider]

Marcelo,
did you try alignExtent() in the raster package?


Dominik Schneider
o 303.735.6296 | c 518.956.3978


On Mon, Aug 17, 2015 at 8:34 AM, Loïc Dutrieux <loic.dutrieux at wur.nl> wrote:

> Hi Marcelo,
>
> I don't see anything in raster or rgdal that would do that directly.
> However, this can be done I believe using gdal_translate / gdal_edit (for
> adding the GCPs to the dataset) + gdalwarp (for warping). Both
> gdal_translate and gdalwarp utilities have wrappers in the gdalUtils
> package.
>
> Cheers,
> Loïc Dutrieux
>
>
> On 08/17/2015 11:43 AM, Marcelo Kittlein wrote:
>
>>
>> Hi all
>>
>> I want to change a MSS landsat image which has bad georeferencing.
>>
>> I have a grid of points with correct georeferences and want to use them
>> to reproject the image to a correct reference system.
>>
>> Is there some way to this in R using "raster" or other package?
>>
>> in idrisi I used to resample the image using a correspondence file
>> (.cor) with xold yold xnew ynew values.
>>
>> I wonder if there is something similar I can do in R? Thanks in advance
>>
>> Marcelo Kittlein
>>
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>
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