Jose Gomez-Dans wrote:
Hi Klokan,
2009/4/1 Klokan Petr Přidal <klo...@klokan.cz <mailto:klo...@klokan.cz>>
gdal.RegenerateOverview() with 'average' and 'mode' algorithms.
and
gdal.ReprojectImage() with 'bilinear','cubic','cubicspline' and
'lanczos' algorithms.
That's quite cool, but does RegenerateOverview() take into account
NODATA values when doing the 'mode' or 'average'? It would be nice if it
could ignore them!
Jose,
It appears based on review of the code that the "AVERAGE" overview
generation algorithm does ignore pixels determined to be nodata.
I have not experimentally confirmed this.
Best regards,
--
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