On 26/01/22 19:50, Ilaria Ferrando wrote:
Dear Māris, Thank you for your reply. Yes, the image is inside the computational region. Any other ideas?
1) Are you sure your input data is reflectance (-r flag used) ? 2) Could you provide us with the contents of the 22giugno2020_b4.txt file ? Moritz
Il mer 26 gen 2022, 19:45 Maris Nartiss <maris....@gmail.com <mailto:maris....@gmail.com>> ha scritto:One thing to always check – does your computational region contain data you are analysing? Try to run `g.region rast=immagine` before running i.atcorr. Māris. trešd., 2022. g. 26. janv., plkst. 18:13 — lietotājs <ilaria.ferrand...@gmail.com <mailto:ilaria.ferrand...@gmail.com>> rakstīja: > > Dear all, > > I am having troubles in processing a Sentinel-2 image with i.atcorr. > > The command I use is the following: > > i.atcorr -r -input=immagine@mapset range=0,10000 parameters=C:\...\22giugno2020_b4.txt output=immagine_atcorr rescale=0,1 > > and I obtain this output: > > wavelength less than 0.25 micron: > > let's take s(l)=s(0.25) > > Atmospheric correction... > > Atmospheric correction complete. > > > > The map I obtain is constituted by pixels with 6.669033e-34 values. > > Can anyone explain the meaning of the output and why I obtain a NULL value corrected map? > > Thank you for your support. > > > > _______________________________________________ > grass-user mailing list > grass-user@lists.osgeo.org <mailto:grass-user@lists.osgeo.org> > https://lists.osgeo.org/mailman/listinfo/grass-user <https://lists.osgeo.org/mailman/listinfo/grass-user> _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/grass-user
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