[Qgis-user] r.neighbors- not responding

Johannes Kröger (WhereGroup) johannes.kroeger at wheregroup.com
Mon Mar 18 00:23:08 PDT 2024


What kind of raster file? What format and what specifics?

I'd recommend you use a format that is binary and internally tiled, e.g. 
GeoTIFF with TILES=YES. That way access to such areas is as efficient as 
can be.

49 neighbors is quite excessive, maybe simply downsampling your raster 
with an appropriate filter/interpolator would achieve the result you need?

On 17.03.24 15:25, Langers, Fransje via QGIS-User wrote:
>
> I work with QGIS 3.34.
>
> I have a raster input file, with cell size 5*5m, and with values 1 and 0.
>
> I want to use r.neighbors (operation average), .
>
> When I choose a small neighborhood size of 3, everything goes fine.
>
> For my analyses I need to choose a neighborhood size of 49 
> (representing a 250m diameter).
>
> It seems this operation is too large, as I get no result (not 
> responding). What can I do?
>
>
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-- 
Johannes Kröger / GIS-Entwickler/-Berater

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