[Qgis-user] merging raster layer

[Richard McDonnell]

Hi Milena,
You can use the Rescale Raster function in QGIS, you can get this by typing Rescale into the Processing Toolbox.
Set your Minimum value (in your case 0), your Maximum Value (in your case 1), specify your NoData Value (if required) specify a location to save the output and click Run
Hope that helps, Regards,

Richard





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Richard McDonnell MSc GIS, FME Certified Professional
FRM Data Management

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From: Qgis-user <qgis-user-bounces at lists.osgeo.org> On Behalf Of Milena Muehler
Sent: 24 March 2021 08:38
To: qgis-user at lists.osgeo.org
Subject: [Qgis-user] merging raster layer

Hi,

I'm a newcomer and use raster layers for my current analysis.
I would like to combine / proceed additions / merge all layers but I need to make the values uniform right?

I have a layer whose values ​​are scaled so that the values ​​are scaled from 0-1. (0 = no land modification 1 = high land modification).

the other layer,  for example population density, has simple values ​​from a minimum of 0 to a maximum of 650,000 per pixel (for population density). I also want to scale this layer to a 0-1 metric scale.

All layers should have values ​​from a minimum of 0 to a maximum of 1.

Is that possible, and if so, via which function?

As you can see, I am a total beginner and have not yet had any contact with QGIS or GIS data in general.

Thank you so much

best regards
Milena


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