How to fill nodata raster data

How to fill nodata raster data: There are a few alternatives to fill NoData cells for a raster picture.

ArcGIS Generalization toolset has the snack and grows apparatuses to fill in NoData openings.

If you have a raster with holes in it, you can use the open-source software QGIS with the GDAL Fill NoData tool

The quickest (and dirtiest) method is using the free SAGA GIS software’s Close Gaps tool. (It’s worth it to download because of how quick you can get this done.)

SAGA GIS Close Gaps Tool

Don’t get turned off downloading another software bundle because this will likely a lot speedier strategy than what you will discover in the following 10 minutes. Adventure GIS is totally open source. It accompanies a wide range of useful tools for geoscientific analysis.

With a bit of trial and error, we’ve found the most effective way to fill in NoData cells is by using the  Close Gaps tool.

You can find the Close Gaps tool in the Grid toolbox.

close gaps

Change the input raster to your DEM or any raster data set with holes.

raster data

Click the Okay button and you’re done.

That’s all there is to it.

What’s Next?

While ArcGIS lets you nibble and expand to eat away at NoData holes.

SAGA GIS gets the job done – quick and dirty.

Download SAGA GIS and give this tutorial a try.

Remember this tip next time you have gaps and want to replace NoData values in a raster data set.

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1 Comment

Fernanda Scrivener · November 29, 2020 at 6:30 pm

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