[gdal-dev] moving filter averaging in GDAL.

[Frank Warmerdam]

Belaid MOA wrote:
> Hi,
>  Does GDAL have functions for applying an averaging filter of window, 
> say 11x11, to an image? This is something that comes up all the time in 
> image analysis. So, I suppose GDAL has built-in functions for that.
> 
>  Any help on this is very appreciated.

Belaid,

There is support for filtering, including average filtering, with the
gdalfilter.py command in gdal/swig/python/samples.  It accomplished
by creating a virtual file using the <KernelFilteredSource> directive -
so ultimately the work is done by the VRT driver.

Best regards,
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