Questions tagged [raster]
Raster is a data format consisting of regular grids of values, usually stored in an image-like format.
10,152 questions
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Cannot add raster for interactive georeferencing
I am trying to upload a raster image to realign to another image. Every time I try to upload a raster image using the red "AD" button, it gives me an error stating my TIF file is too big. My ...
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error of ST_Polygon(raster) function in PostGIS 3.4.3 [closed]
I am using PostgreSQL 17 and this version of PostGIS:
POSTGIS="3.4.3 e365945" [EXTENSION] PGSQL="170" GEOS="3.9.0-CAPI-1.16.2" PROJ="7.2.1 NETWORK_ENABLED=OFF ...
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Seeking raster equivalent of Centroid tool
I have multiple aerial photos, and I want to create a vector layer where each point represents the center of a raster.
Since these are aerial photos, each one is in a separate layer, so I need to run ...
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Can I use current layers from PaleoClim and future layers from CHELSA for projections?
I am using the current layers (1979-2013; 2.5 arcminute) from PaleoClim (downscaled version of CHELSA) to model the current potential distributions of a species. As PaleoClim does not have future ...
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How to create a COG using gdal.Warp without turning transparent pixels to black pixels?
I am trying to create a COG from a TIF file from OpenAerialMap. The initial file appears in QGIS nicely: areas which do not have data are transparent. However, when viewing the COG, some of the no ...
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Export map item as raster while keeping other items as vector
Is it possible to get a map item to export as a raster? I know you can force individual layers to render as rasters but I ideally need it to work as layers change/be a bit more dynamic than that.
I ...
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gdal_fillnodata has no compression flag
My input raster is about 2.5GB. It is UInt16 with prediction 2 and LZW compression.
I want to run gdal_fillnodata on it to expand the raster coverage.
python.exe gdal_fillnodata.py -co TILED=YES -co ...
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Extracting/Clipping Trust for Public Lands Heat severity 2024 Layer
I want to download and clip this heat severity raster from the Trust for Public Land Heat Severity 2024 into ArcGIS Pro.
The previous year had a template on the raster and it was very easy to use. ...
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Average for each band from multiple multiband rasters in QGIS
I have multiple rasters with 141 bands each and what I'm looking for is to get a new raster with the same number of bands and each band to be the average of the input rasters:
Raster 1 ... ...
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Aligning locally warped rasters
I'm trying to align orthophoto rasters that suffer from incompatible local deformations. They are leaf-on and leaf-off images and I want to retain and analyze the vegetation and feature differences. ...
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Contours from a black and white re-calculated raster
I am trying to create vectors from a map of contours, I've managed to use the 'Raster Calculator' tool to isolate the specific colours that are used for the contour lines, which leaves me with this ...
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Cannot Merge Raster files in QGIS
I am getting the error
RuntimeError: Cannot allocate result buffer
when I am trying to merge two raster TIFF files in QGIS. Both files are saved on the drive. Files have some overlapping parts. By ...
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Convert raster DEM (digital elevation model) to CAD for 3D modelling
I got a digital elevation model as a raster file (1 meter resolution, area of interest 10 Acres). I want to convert it to a real 3D model-file, that I can use in FreeCAD for further 3D modelling. What ...
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Merging rasters but ignoring NoData from one of rasters only in QGIS
Let's say I have three raster files: "Germany", "Hamburg", "Dresden".
Only one of those rasters, i.e. "Hamburg", contains "NoData" that I would like ...
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Add legend for single-color raster
I have a raster layer whose style is set to "Single color".
I would like to have a rectangle with this color in my legend, as if I had a vector layer with a single-symbol style.
The other ...
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