[gdal-dev] gdalwrap support for non geo referenced images

[Chaitanya kumar CH]

Viswanath,

With no projection details to handle, any good image processing application,
like GIMP, should be able to do the job.

On Fri, Nov 6, 2009 at 4:26 PM, vvv jjj <vvvjjj0 at yahoo.co.in> wrote:

> Thanks Chaitanya.
> One more doubt.
> I would like to know whether any GDAL application supports resizing an
> image (with no projection details) using lanscoz resampling method. I looked
> at gdal translate but could not find the option to change the resampling
> method. Kindly let me know if there is any option.
>
> Thanks and Regards
> J.Viswanath
>
> --- On Thu, 5/11/09, Chaitanya kumar CH <chaitanya.ch at gmail.com> wrote:
>
> > From: Chaitanya kumar CH <chaitanya.ch at gmail.com>
> > Subject: Re: [gdal-dev] gdalwrap support for non geo referenced images
> > To: "vvv jjj" <vvvjjj0 at yahoo.co.in>
> > Cc: gdal-dev at lists.osgeo.org
> > Date: Thursday, 5 November, 2009, 5:15 PM
> > Viswanath,
> >
> > gdalwarp is used to reproject an image from one projection
> > to another.
> > With no projection information or GCPs with your tiff there
> > is no way it can do that.
> >
> > Perhaps you are looking for gdal_translate (
> http://www.gdal.org/gdal_translate.html
> > )
> >
> >
> > On Thu, Nov 5, 2009 at 4:32 PM,
> > vvv jjj <vvvjjj0 at yahoo.co.in>
> > wrote:
> >
> > Hello
> >
> >
> >
> >    Im trying to resample a simple tiff file which do not
> > contain any georeference data using gdalwrap. The gdalwrap
> > is showing the following message.
> >
> >
> >
> > ERROR 1: Unable to compute a transformation between
> > pixel/line
> >
> > and georeferenced coordinates for myfile.tif.
> >
> > There is no affine transformation and no GCPs.
> >
> >
> >
> > What does it mean? Does it mean gdalwrap do not support
> > images with no geo reference details or anything else. Or
> > did I missed anything in using gdalwrap.
> >
> >
> >
> > Thanks in advance.
> >
> >
> >
> > J.Viswanath
> >
> >
> >
> >
> >
> >
> >
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> >
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> >
> >
> >
> >
> > --
> > Best regards,
> > Chaitanya kumar CH.
> >
> >
>
>
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-- 
Best regards,
Chaitanya kumar CH.
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