[gdal-dev] Georeferencing problem

[Chaitanya kumar CH]

Nitasha,

I see that all the GCPs have the same value '70.2958709253187'. Correct
your GCPs and try again.

On Fri, Oct 19, 2012 at 1:04 PM, <nitasha17 at gmail.com> wrote:

> Hello Sir ,
> I am new to GIS and I am trying to georeference a image( 15min X 15min
> multispectral image) using gdal.The process that I am following is as
> follows :
>
> 1. First i am using gdal-translate with -gcp & -a-srs epsg ;
>
> gdal_translate -gcp 750.473430004334 3070.53287635397 70.2958709253187
> 27.9375281361964 -gcp 4057.56191915846 4036.62967261977 70.2958709253187
> 27.9964718881037 -gcp 3695.42969944292 1084.49720804115 70.2958709253187
> 27.8162786236328 -gcp 18.5158756347083 88.546174354395 70.2958709253187
> 27.7554467555991 -gcp 2114.46778195322 2068.47766007366 70.2958709253187
> 27.8762596874124 -a_srs epsg:4326 "InputImg.tif" "OutputImg.tif"
>
> 2. Then I am using gdalwarp  with -r option :
>
> gdalwarp -r Bilinear "outputImg.tif" "GeorefImg.tif"
>
>
> But I am getting an error "failed to compute gcp transform transform is
> not solvable"
>
> Also, please tell me if I am using correct method to georeference a image.
> Please help me, I am badly struck with this problem from many days.
>
>
> Thanks
>



-- 
Best regards,
Chaitanya kumar CH.

+91-9494447584
17.2416N 80.1426E
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