Questions tagged [land-classification]

A cartographic delineation of distinct land areas, identified by their geology, topography, soils, vegetation, climate conditions, living species, habitats, water resources, as well as anthropic factors.

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19 views

Land use land change map with Landsat

I'm preparing land use maps for various years using Landsat 8 and Landsat 7 imagery. For Landsat 7, I've decided to not fill the gaps for SLC as it might result in inaccuracies. For the land change ...
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23 views

Resolving land use/land cover misclassification

I'm relatively new to RS, I've been using Landsat Collection 2 Tier 2 data for my land use maps in ArcGIS Desktop. The problem is that my AOT has scarce rural built up area, due to which other barren ...
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Compare two rasters and create a new raster with common and different values

I have two classified maps (1995 and 2000) with five classes (built up, vegetation, etc.). I want to create a new map that will have all the built-up pixels from 1995 and will only have pixels from ...
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Calculating raster land use zone characteristics for multiple circular buffers derived from lat long coordinates in QGIS 3.12.3

Calculating raster land use zone characteristics for multiple circular buffers derived from lat long coordinates in QGIS 3.12.3 I am running QGIS 3.12.3. I have 150 circular buffers at 1KM, 4KM, ...
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Use ArcMap to record dominant land classification per DEA in Ireland [duplicate]

I have a shapefile consisting of Ireland District Electoral Areas (DEA), in which there are over 3000 polygons. Secondly, I have a shapefile consisting of the Land Use classifications in Ireland. A ...
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45 views

Raster comes in black square outside my shape layer while performing unsupervised classification in QGIS

Any idea why my raster comes in black square outside my shape layer while performing unsupervised classification in QGIS? How can I correct this? Tried correcting it by adding 100% transparency for ...
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106 views

[Solved]LULC Classification of Sentinel-2 Using XGBoost in R

I am trying to do Land cover classification using xgboost in R language. These are the following steps: > library(raster) Loading required package: sp Warning message: R graphics engine version 14 ...
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22 views

Google Earth Engine: Classifier (Error) Classifier.spectralRegion

I am using the spectralRegion classifier for classification, but I am having problems setting the parameters. I get the coordinates by .geometry() & .coordinates(), but this data structure is ...
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55 views

Reclassify values of the land use land cover class of Copernicus Global Land Cover Layers in Google Earth Engine

I am using the Copernicus Global land cover layers:CGLS-LC100 collection 3 data set. I want to reclassify the value of the lulc for my application. Map is showing but when I want to reclassify the ...
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78 views

Object-Oriented LULC Classification in Google Earth Engine

I am testing a object-oriented LULC classification approach in Google Earth Engine, using the code available at the following link: https://code.earthengine.google.com/4032fe102252b285ec249f395d0d6d0f....
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33 views

Alternative way of correctly classifying Landsat images

I am conducting a supervised classification of Landsat 8 image. I have 6 classes: river, forest, built-up, brush land, grassland, and agricultural land. I assessed the spectral separability of each ...
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While clipping a Raster generated from SCP plugin (classification) all the colors are vanished in the end output and the raster generated is in B/W

I have done all the LULC classification using SCP plugin. after completing my classification, I wanted to clip the raster using a Shape File. But when I do it, the colors are vanished in the output ...
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69 views

I have a satellite image. I want to sample all the trees and vectorize them at once

I have a satellite imagery. I want to vectorize all the trees at once by color sampling. How to do it? I used Photoshop to sample the all the various color ranges of trees [Green] to distinguish ...
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36 views

Land classification confusion matrix pixel total and toList() pixel total not matching

Using Landsat imagery and a CART classifier I have successfully carried out land classification and computed a confusion matrix for one full Landsat image, please see: https://code.earthengine.google....
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100 views

Merging Image Collections and Land Classification using Google Earth Engine

I ultimately would like to look at multiple parameters on a landscape to identify suitable habitat for a squirrel species. The parameters I would like to look at are 1) NDVI 2) Elevation 3) Impervious ...
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16 views

Counting the number of pixels for each distinct class

I created a land cover transition map that has over 200 distinct transition classes. I would like to count the number of pixels for each distinct transition class within the region and I was wondering ...
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235 views

Validate a supervised classification in Google Earth Engine using ground truth data

I ran a supervised classification in Google Earth Engine (GEE) using the following script. // add an image, bounds, filter data and sort by cloud cover var limitiNapoli = 'PathToMyasset' var image =...
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Adding values to landuse class raster using ArcMap

I am currently working on a map that holds my animals' projected radio-locations from my work this summer. I have a current land class map downloaded from the USGS of the site; however, some of the ...
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59 views

Build land classes from GIS data

I have combined geo-referenced terrain, climate, and soil data with the requirements of the different agricultural food crops in order to build land classes that tell you where which crop can be grown....
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Classifying USA medical facilities as rural or urban from address or zip code R

I have a list of thousands of USA medical provider locations (street addresses, zip code and state details) and I need to classify each one as either urban or rural. I have no lat long details and my ...
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1answer
58 views

Problems with no valid "nodata" value

I'm trying to use the "lecos" extension and I took an already classified image from the mapbiomas website, cut it out to my area of ​​interest, then reclassified to have in a .tif file only ...
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41 views

Preparing training data for crop species classification from drone images

I have high resolution multispectral (R,G,B,NIR,RE bands) images of a field taken from MicaSense RedEdge mounted on a drone. There are various species of crops planted. I want to classify the crops or ...
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41 views

Land cover data to create single colour polygons

I am trying to replicate the map here https://www.cdc.gov/yellowfever/maps/africa.html I have downloaded land cover data, which is what the Northern countries are based on, from https://www.diva-gis....
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587 views

ArcGIS Pro Classify Raster Failure ERROR 002834

I am trying to run the Classify Raster tool in ArcGIS Pro 2.5 using an .ecd file generated from the ISO Classifier tool. I am using a composite of Sentinel bands run through the PCA tool and an ...
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98 views

Error in Built Up area Classification using Landsat 8 in google earth engine ( SVM, RF and Cart)

I am using Earth Engine to Classify an area using supervised classification with a combination of reflectance bands and indices. The built-up area gets mixed with fallow land (bare soil) and I have ...
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44 views

Highly Imbalanced dataset

I have a dataset (vector data) that contains the polygons and their corresponding crop type. This data is highly imbalanced i.e, I have a lot of classes that contain one sample only, as shown in the ...
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45 views

Performing land cover classification over whole country

I am doing land cover classification over the whole country of Djibouti. I am downloading Sentinel 2 images for this purpose. I have realised doing land cover classification over a large area needs ...
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1answer
123 views

Why using buffers in land use / land cover classification task?

I am following the tutorial How To: Land-Use-Land-Cover Prediction for Slovenia and I would like to understand why they used a positive buffer (expanding boundary limits) in the first part of the ...
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1answer
25 views

Fire Danger Forecast index- classification - USGS

I recently downloaded a raster image called Fire Danger Forecast index from USGS - Fire Danger Forecast, and I wanted to get the probability of fire for a set of points I have in another layer, but ...
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1answer
135 views

Predicting the whole image through trained classifier and visualize it as classified landuse and landcover image(LULC)

I am working on LULC classification of sentinel-2 image(4-bands) using Machine Learning algorithms. I split the whole image into 64*64 patches and assigned class label (builtup, barren land, water and ...
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49 views

Automatically fix overlaps by weight/occurrence

I'm working on a project where I have asked a number of individuals to digitize the same features on the same satellite image. For example, an image of a coast where a group of individuals each draw ...
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50 views

Sentinel-2 images

I am going to use Sentinel-2 images for crop type classification, and I am new to remote sensing. I want to know if there is an added value when using both L2A and L1C images. From what I understand, ...
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93 views

Problem exporting a large classified image in Earth Engine

I am trying to export a GeoTIFF image but it doesn't work. https://code.earthengine.google.com/fe534ace7f3fc4fdfd155ded24155525 When I export the large classified image to Google Drive, I don't get ...
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134 views

What cell size do I use when the raster cell size is larger than the zonal vector features for Zonal statistics as table tool?

I want to calculate the mean precipitation from a PRISM raster for a land use data layer using the Zonal statistics as table tool for ArcGIS 10.7. The land use vector layer contains over 20,000 ...
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1answer
556 views

Dealing with NAN values in my training dataset

I am new to remote sensing. I am working on a project where I need to perform land use land cover classification. For such a task I want to use machine learning (python). My features contain 'BANDS' (...
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83 views

Area calculation

I have a composite image collection which I used for land use classification. I want to calculate the area of the feature collections. The code I have used is: // Composite an image collection and ...
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1answer
40 views

Calculating LULC change 1973-2014 of a classified map (raster converted to shapefile) in ArcGIS 10.6

I am attempting to workout landcover change between two classified landcover maps. Ideally I want to show percentage change between the years per landcover type. I think I have done this but I am ...
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204 views

Landsat-8 level 2 DN to reflectance

I have downloaded a series of Landsat-8 level 2 images. My main purpose is to obtain reflectance out of them; however, the scale of the different bands does not look like reflectance (e.g. Blue Band ...
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430 views

Scripting color palette to align with corresponding classes from supervised classification in Google Earth Engine

When I display my classification map, the colors don't line up with the variable that I want them to. For example, my forest category is represented as red (instead of my goal color-green), or my ...
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2k views

AttributeError: 'NoneType' object has no attribute 'GetFeatureCount' [closed]

I am trying to use the Landscape Vector Overlay function in the LecoS plugin to calculate the amount of various proportions of land cover types (using an ordinary landscape raster) within buffer ...
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393 views

How to apply trained classifier to entire Landsat collection in Google Earth Engine

I have classified the 2019 image using Google Earth Engine. How can I use the training data and code I have for 2019 and apply it from 1984 to 2018 instead of training/running a code for each image ...
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2answers
224 views

Densify and smooth out categorical raster with diagonal neighbors

I'm classifying vegetation types in QGIS (3.10). I have a pretty coarse raster that I want to smooth out. The standard approach seems to be to polygonize and then apply various smoothing algorithms (e....
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109 views

Get polygons of crop classification from the Land Parcel Information Systems (LPIS)

I'm trying to get\download polygons of fields with crop type. There is a USA database called cropscape which is very friendly. There is also a European one called Land Parcel Information\...
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1answer
540 views

Splitting up a region into training data and validation data for Landsat7 classification

I am building a classifier for Landsat7 by using MODIS land cover classification. My goal is to split up my region of interest into 80% being training data and 20% being validation data (with a ...
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434 views

Replace specific raster class by surrounding classes

I have a classified landcover raster which also contains the classes "clouds" (pixelvalue 5) and "shadows" (pixelvalue 10). I want to eliminate them by replacing these two classes by the majority of ...
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65 views

Measuring area of raster within polygons using QGIS

I am trying to use QGIS3.10 to analyze the area of forest within regions. It looks like this where the polygons belongs to WFS layer and Rasters belongs to WMS layer. The legends fo Raster suggests ...
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26 views

Creating boundaries for Land-use classification

I have done the land use classification for sentinel imagery. Now I want to create boundaries, within that classified image, enclosing different classified section. For example boundaries for water, ...
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1answer
126 views

Classifying type of crop on satellite images using Python [closed]

I'm trying to make a classification on the send with python, but logically I find all the vegetation that I don't care about. The even more serious fact is that if the species is not present in a ...
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1answer
75 views

Classifying land use in polygons using aerial imagery

I am trying to use the shapefile here: https://environment.data.gov.uk/DefraDataDownload/?mapService=EA/HistoricLandfill&Mode=spatial to work out how much of the sites are covered in trees. I ...
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50 views

Export classifier from SCP Plugin for use in other image classification

I have run a classification using the SCP plugin in QGIS. I want to recreate these results in a neighboring area and I am looking for help to see if it is possible to save the classification ...