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Results tagged with grass-gis
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user 193676
GRASS GIS (Geographic Resources Analysis Support System) is a free, open source geographical information system (GIS) specialized in handling raster, topological vector, image processing, and graphic data. GRASS GIS is a high performance analytical GIS and remote sensing with focus on modularity. Users can process both day-to-day data as well as massive time series.
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Export raster band to greyscale image in GRASS GIS
I'm trying to output the ARVI band of an image to a JPEG from GRASS GIS. I need the image to be the same resolution, as I it will be used for creating label data for a ML model in LabelStudio.
I gener …
- 148
1
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1
answer
217
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Does GRASS's i.segment use all bands of data in a GeoTiff?
I'm trying to understand more about how the i.segment algorithm works. Most importantly, does it use all of the available bands in an image? The documentation notes you must specify a group. When I di …
- 148
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i.vi writing null data to output raster on first attempt
I have the following lines of code in a bash script I wrote using osgeo's GRASS command line tools:
i.vi viname=ndvi output=$ndvi_fn nir=$nir_fn red=$red_fn --overwrite
while r.info $ndvi_fn -r | grep …
- 148