[Qgis-user] Qgis : problem with output MSAVI index (raster calculator)

celati Laurent laurent.celati at gmail.com
Thu Jan 22 09:27:44 PST 2026


Dear all,

I work with Qgis 3.4. From a landsat 5 image i would like to perform MSAVI
index vegetation.
[image: image.png]
When i try to do that with Qgis (raster calculation), my output has mainly
no data values and the valid pixels are not between -1 and 1.

[image: image.png]

Please find below the output with Qgis :

[image: image.png]
[image: image.png]
Thanks so much
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