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Questions tagged [rasterstats]

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0answers
14 views

Automate exporting raster XMLs

I edit my raster catalogs to get a specific symbology and then I have to manually export the XML. I then load the XML into the mosaic dataset. I can't seem to find a way to automate the process of ...
1
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1answer
39 views

How do I build a new raster based on raster stats in QGIS?

I want to create a new raster that uses the mean value of the original raster as the base class of the image and then uses a +- 1 and 2 standard deviations as the other four classes of the image. Is ...
3
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0answers
89 views

Memory errors when doing Zonal Statistics on a multi polygon shapefile in Python

I want to calculate the mean NDVI with the EthNdvi.tif file for each zone (there are around 650 admin zones) in the the woreda shapefile. I'm having some issues with running the following lines of ...
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0answers
81 views

how to calculate the percentage of raster value of each singular buffer?

I am having a problem calculating the percentage of certain raster values inside buffers. I have 1 raster layer with pixel values and 1 vector layer with 40 points. The 40 points are people living in ...
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0answers
210 views

How to open memory data with ogr in rasterstats function?

I would like to reuse vector data created in memory in another function called rasterstats (source code, documentation): I have a function that creates vector data: def createPolygons: ...
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0answers
51 views

On-the-fly zonal statistics in QGIS

I would like to know if there is a plugin/method in QGIS to calculate zonal statistics (mean, median, range, max, min etc.) of a raster file, corresponding to a polygon that I draw/highlight in QGIS. ...
0
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1answer
34 views

Using modeled surfaces together to make predictions?

My question is about stacking multiple rasters of predicted surfaces, that have some of the same predictors. For example, if I make a predicted surface using all the terrain attributes as ...
5
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0answers
355 views

Calculating average pixel value for each band across multiple raster layers?

I have a set of raster files that are essentially data sets of precipitation across a region. I have multiple raster files that are the outputs of different climate models. Each pixel in the raster ...
0
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1answer
157 views

Calculating Zonal Stacks on imagery with missing pixels

I'm trying to calculate zonal statistics on some imagery that has a bunch of pixels that come out as 0s. This is affecting the mean value for the area, or at least seems to be. I'm using the ...
3
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1answer
121 views

No data pixels in raster file

I have a TIFF file and I'm trying to use rasterstats to get statistics of different geometries defined in a shapefile or a TopoJSON file. But I'm getting the count as 0 for all the geometries. My ...
4
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2answers
3k views

How to calculate raster statistics for each values in a band?

I have one raster scene that contains one band with multiple pixel values (0-14). Each values represent deforestation in certain year (0=no tree cover loss, 1=loss in 2001, 2=loss in 2002, and so on) ...
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0answers
169 views

Qgis not computing raster stats in layer properties - metadata?

I used to check the sum of all values of a raster (to get some volume information) from the layer properties - Metadata - properties tab, where I had directly the figure I was looking for. However, ...
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2answers
430 views

Is there an open-source equivalent of ArcGIS “Zonal Statistics as Table” tool?

With ArcGIS zonal statistics as a table I can easily calculate the mean value from a raster contained within a polygon from a shapefile. I now have a Mac, and therefore I cannot access ArcGIS anymore. ...
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0answers
872 views

How to resolve “'NoneType' object is not callable” TypeError when calling rasterstats.zonal_stats from ArcPy script?

I'm attempting to workaround the apparent zonal statistics bug in ArcGIS 10.4 by using rasterstats.zonal_stats. stats = zonal_stats(shapefile_full_path, rast_full_path,0,1,None,None,{'mean','min','...
1
vote
1answer
489 views

Writing geoJson from rasterstats

How would I write a proper geoJson, readable by a GIS, from the results of the rasterstats package? stats = zonal_stats("somePolygons.shp", "someTif.tif", ...
2
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1answer
407 views

Using zonal_stats with python in QGIS to calculate statistics for each image

I work with Python in QGIS, I want to calculate statistics for each image that I have with a specify shapefile and save result after, I tried to do like this: from rasterstats import zonal_stats ...
5
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1answer
779 views

Geopandas and Zonal Statistic error

I'm trying to use Geopandas and zonal statistic from rasterstats together. I run this code import geopandas as gpd from rasterstats import zonal_stats geodf = gpd.read_file("SHP/shape.shp") ...
3
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1answer
468 views

How to compute zonal statistics fast?

I have 12000 circles with a radius of 50 miles on a raster with 0.05 degree resolution. Global analysis. The raster is 32 bit float and I have to calculate zonal statistics for 20 different rasters. ...
7
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1answer
701 views

Weighted zonal statistics in Python and/or R [closed]

I have raster files with precipitation data (4x4 km), monthly, for about 100 years. I have a shapefile for a watershed (which includes several polygons as sub-basins). I need the average precipitation ...