All Questions
Tagged with vectorization polygonize
5
questions
0
votes
1
answer
406
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Polygonize/Vectorize large raster
A raster(.tif) of 6.70GB needs to be converted into polygons. The raster is binary (0 & 1), currently I am using Polygonize (raster to vector) and its taking a considerable amount of time and the ...
- 615
0
votes
2
answers
601
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How to polygonize NDVI raster using GDAL?
I have raster with NDVI values. I would like to polygonize the raster to get vector where each polygon is a pixel.
I have tried gdal.Polygonize as described in the documentation and that runs without ...
- 2,169
1
vote
0
answers
153
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QGIS does not polygonize [closed]
I have a .tif which I want to have polygonized. I take the Raster/Conversion/Raster to Polygon. QGIS 3.12 starts the process but never ends (once I waited half an hour). I maybe don't see a mistake.
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- 85
0
votes
2
answers
106
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Two-value raster to generalized polygons (join pixels close together into one polygon) with short computation time in QGIS or ArcMap [closed]
I want to create application map for agriculture based on NDVI map. I have theoretical way how to do it.
My raster has two values (1 - red, 0 - green), the raster is quite big (100 hectares with 6 ...
- 363
2
votes
1
answer
458
views
Vectorize raster
I'd like to vectorise the Natural Earth II raster in order to be able to change its colours and display it with as a vector map. Using gdal_polygonize.py won't help as it will create 1 polygon per ...
- 594