[gdal-dev] What GDAL BUILDVRT utility does in case of overlapped pixels while mosaicking georeferenced images?

Jukka Rahkonen jukka.rahkonen at mmmtike.fi
Thu Dec 5 07:18:16 PST 2013


 <go2viena <at> gmx.com> writes:

> 
> Hi GDAL Developers:
>  
> During mosaicking numerous georeferenced images using the BUILDVRT
utility (http://www.gdal.org/gdalbuildvrt.html), what this tool does in case
of overlapped pixels: does it calculate mean values for all the overlapped
pixels and that mean value is resulted in final mosaicked image? OR anything
else?
> I want to make sure about the actual method behind this utility.

Hi,

Nothing so intelligent if I am not wrong. Pixels from the latest image in
the VRT file will be used.

-Jukka Rahkonen-



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