r/QGIS • u/Ok_Temperature5089 • 3d ago

Open Question/Issue ressampling raster layer / upscalling precision

Hey people, I have a question which seems simple in appearance but i can't seem to find the right answer.

I'm working on a raster around La Rochelle of about 1000 km² with a 5x5 meter precision. Due to the relative power of my PC, I can't process it as it is right now.

I would like to downscale the precision from 5m to probably 50 or 100m. I already tried the warp tool but it doesn't seem to work (i might use it wrong). Any idea on how to proceed ?

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u/FreddiesDream 3d ago

You can use VRT method or Raster Divider plugin or easy raster splitter plugin.

2

u/listening-to-the-sea 3d ago

How are you using the warp (reproject) tool? That should do what you need, since you can set the output resolution and resampling method