Thank you very much Chris. I will take a look at "lanczons" method and check
whether I could use it to solve my simple problem once for all.
With best regards.
~Belaid.
> Date: Thu, 17 Sep 2009 15:56:33 -0700
> From: chris.bar...@noaa.gov
> Subject: Re: [gdal-dev] pixel/l
Belaid MOA wrote:
I do not see how gdal_wrap could be used to find the pixels in the
source image that map to
the same pixel in the destination image?
sorry for the typo, that's "gdalwarp"
My point was not that you could use it to find the pixels, but that you
could use it to do the whole jo
Belaid MOA wrote:
I wrote a GDAL C++ code that solves the following simple problem:
take two images, a source image with spatial resolution 25mx25m (high
resolution) and a destination image with spatial resolution
1mx1m (low resolution) and scale the source image so that the
values of
other ideas or thoughts on how to proceed are very appreciated.
Thank you all in advance.
~Belaid.
From: belaid_...@hotmail.com
To: chris.bar...@noaa.gov; gdal-dev@lists.osgeo.org
Subject: RE: [gdal-dev] pixel/line mapping for two images.
Date: Wed, 16 Sep 2009 19:39:20 +
CC:
Than
:31 -0700
> From: chris.bar...@noaa.gov
> Subject: Re: [gdal-dev] pixel/line mapping for two images.
> To: belaid_...@hotmail.com; gdal-dev@lists.osgeo.org
>
> Belaid MOA wrote:
> > Thanks for the reply. I do not see how anti-aliasing techniques could be
> > used here.
&
Belaid MOA wrote:
> Thanks for the reply. I do not see how anti-aliasing techniques could be
> used here.
anti-aliasing when warping rasters requires computing how much the
pixels of the source and destination overlap each-other.
> Does anyone else have simple answers to the two elementary ques
Thanks for the reply. I do not see how anti-aliasing techniques could be used
here.
Does anyone else have simple answers to the two elementary questions?
Thanks a lot in advance.
With best regards.
~Belaid.
> Date: Sat, 12 Sep 2009 16:24:54 +0530
> Subject: Re: [gdal-dev] pixe
Belaid,
GDAL uses various interpolation/resampling algorithms like nearest
neighbour, bilinear, cubic, cubic spline and lanczos. However, I think
these may not be what you are looking for.
Computing the overlap of pixels of two images should not be a complex
process. You may find some ideas with
Hi everyone,
I have two elementary questions about how GDAL maps the pixel/line of one
image to an other image.
Suppose we have two GeoTiff images with different spatial resolutions and
projections.
According to GDAL code, a pixel/line (i,j), more precisely its center
(i+0.5,j+0.5), of the
