Hi again!
„Focal Statistics” works only with one layer. But it's easy to overcome
this with small script.
Look at this example. As the source, I have a GeoTIFF with 6 bands:
$ gdalinfo MultidimensionGrid.tif | grep Band
Band 1 Block=1830x1 Type=UInt16, ColorInterp=Gray
Band 2 Block=1830x1 Type=UInt16, ColorInterp=Undefined
Band 3 Block=1830x1 Type=UInt16, ColorInterp=Undefined
Band 4 Block=1830x1 Type=UInt16, ColorInterp=Undefined
Band 5 Block=1830x1 Type=UInt16, ColorInterp=Undefined
Band 6 Block=1830x1 Type=UInt16, ColorInterp=Undefined
Band 7 Block=1830x1 Type=UInt16, ColorInterp=Undefined
So I create a script to calculate median for all bands:
____________________________________________________
for NR in {0..5} ; do
echo Band $NR
saga_cmd io_gdal 0 \
-GRIDS MultiDim$NR -MULTIPLE 0 \
-SELECTION $NR \
-FILES MultidimensionGrid.tif
saga_cmd statistics_grid 1 \
-GRID MultiDim$NR.sgrd \
-MEDIAN Median$NR
rm MultiDim$NR.*
done
___________________________________________________
Best regards,
Kārlis
01.01.26 11:49, Karlo no Dabas maajas via QGIS-User rakstīja:
Happy New Year!
I suppose the module from SAGA-GIS „Focal Statistics” should do this.
Best regards,
Kārlis
31.12.25 14:32, Andrea Giudiceandrea via QGIS-User rakstīja:
Karlo no Dabas maajas karlo at latnet.lv
Tue Dec 30 02:04:43 PST 2025
Why not to use SAGA or GRASS? You can use them as stand alone or from
QGIS.
Hi Kārlis,
what SAGA-GIS or GRASS processing algorithms in QGIS are able to
calculate the median value among multiple bands stored in a single
raster layer?
[..]
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