[Qgis-user] Reclassifying NDWI image generated from Landsat 8

[Richard McDonnell]

Hi,
You can try the SAGA tool Reclassify Values Simple, available under Processing Toolbox.
Set the required Replace Condition, Use the Lookup Table to set your value bands and required outputs.
Hope this 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 McArd Mlotha
Sent: 23 January 2020 23:49
To: Qgis-user at lists.osgeo.org
Subject: [Qgis-user] Reclassifying NDWI image generated from Landsat 8

Hello,

I run NDWI using Landsat 8 and now I would like to reclassify the output separating water from land.  Here is what I would like to reclass:

-0.994 to 0.1 = 0 and
0.1 to 1 = 1

but I cannot find a tool to use in QGIS. Reading comments online, it seems "the possible reclassifies" in QGIS do not handle real data type.

Is there a way to do this in QGIS?

Thank you in advance,
Joseph

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