Questions tagged [value-extraction]
The value-extraction tag has no usage guidance.
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Trying to export a time series of EVI values for a large asset in Google Earth Engine
I'm trying to export a time series of EVI data for a large asset containing 40,000 points. I am using the MODIS data. The code that I've written works when I extract data for 5 points, but it's not ...
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QGIS plotting from a multiband raster in a ternary diagram
I am working on creating a (remote) superficial geological map using ASTER imagery in QGIS.
I have made several RGB composites including Abram's ratio and Thermal Infra red indices to aid in ...
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Process the img1 using the img2 which contained with only 0 and 1 to keep the raster corresponding 1 and erase the raster corresponding 0
How can I use an image with only 0 and 1 to process another image, so that the original image value corresponding to the 0 value area becomes 0, and the value corresponding to 1 is preserved? Is there ...
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Absurdly large area estimates when extracting landcover area for individual polygons (CORINE Data)
I want to extract area under different CORINE classes as a part of my master's thesis. I am facing problems with the area estimates that QGIS calculates for landcover classes from the CORINE dataset ...
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Extracting monthly band data from an image collection from a pixel with 1000 sample points into a table as CSV - not as chart
I have 1000 field samples as points.
I would like to Extract band values from ERA5land which is already monthly aggregated for each of the points
The data is stored in many bands,
I have selected my ...
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114
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Array: No numbers in 'values', must provide a type
I'm trying to extract the pixel value of the first image of the Modis Aqua chlor_a product but when applying the code I used to do this with the Landsat dataset I'm having an error : Error in map(ID=...
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No numbers in 'values', must provide a type
I'm facing an error when trying to export all the pixel value of a ImageCollection.
The error is :
But when I check the corresponding image in my dataset I don't see anything different from the other....
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Interpolate raster value using Python
I'm new in coding.
I have a shapefile (points) and 15 raster files
My purpose is get the values from all raster to point (each point will get value from 2 or 3 nearest cell baseed on distance of the ...
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53
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Extract Value to Points using ArcMap
I am using ArcMap.
I am trying to extract NDVI values to my point data. However, when I use the tool Extract Values to Points the error is generated as:-
I think they have same Projected Coordinate ...
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Sample Regions - excludes points with masked bands. Google Earth Engine
I have a set of points from around the world and I want to extract the pixel values from a set of images, giving information about the local environment, for each point. Then export the set of values ...
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Subtracting multiple rasters one point values from each related raster
I must extract values by point (just one point) from multiple "Tif" format raster and then times these values to -1 and add them to the raster files with raster calculator (calibration).
I ...
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Getting NaN values when I extract pixel values of a raster using a point shapefile in R
I try to extract pixel values at defined points in a raster file in R, using a point shape file.
With some raster files it works perfectly, with others it returns 'NaN' values for all extracted points....
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121
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Google Earth Engine: error when extracting pixels values of chlorophyll and SST for specific coordinates from SMI Modis Aqua
I'm trying to extract specific pixel values in a csv table of chlorophyll-a and sea surface temperature from Standard Mapped Image MODIS Aqua Data to match to the sampling site over the sampling ...
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Extracting band values of an Image Collection over a point shapefile in GEE
I have an image collection in GEE consisting of 36 images, each with 23 bands of Sentinel 2 data (S2L2A).
I also have a point shapefile that I imported as an asset (RAEJORDANESIA_POINT).
I want to ...
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Negatively buffer edges of thermal resolution raster layer to fit within a higher resolution RGB raster layer to avoid soil temperature extraction [closed]
I want to exclude overhanging thermal pixels in a raster layer to fit within a higher resolution RGB raster layer to avoid extracting any soil temperature.
I have tried buffering in QGIS but will only ...
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90
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Take information from point along coast and make it inland
I'm trying to create a map in ArcGIS Pro using the National Coastal Erosion Risk Mapping Dataset. The dataset shows the likely amount of erosion (metres) at each point along today's UK coastline. I'm ...
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Extract Values to Table: wrong number of pixels
Using ArcGIS Pro and arcpy I am iterating through a shapefile using a SearchCursor to extract the pixel values of a raster for each polygon in the shapefile using the Extract Values to Table (...
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Extracting raster values to points using ArcMap
I am working on a project to determine the coastal vulnerability. I have different variables like elevation, LULC, bathymetry, etc. of the entire study area.
I am stuck in the middle of my analysis.
...
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