Questions tagged [georeferencing]
Aligning geographic data to a known coordinate system so it can be viewed, queried, and analyzed with other geographic data.
1,120 questions
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Georeferencing Google Map image with GDAL, display coordinate values in WGS84
Framing this post with the question first.
Question
Can a GeoTIFF based off of the Google Mercator projection be warped or transformed to display WGS84 lat/long coordinates as opposed to northing/...
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Finding real world reference points on assessor's map
This is probably a very basic question, but I don't even know the right terms to use to start searching for what I need. I'm new to this, but I want to learn.
I have the following assessor's map, and ...
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Convert Google Maps image to ArcMap
I would like to import a Google Maps image of Costa Rica into ArcMap and create a shapefile of this region. A screenshot of the selected region has been taken and I want to process it into ArcMap and ...
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Georeferencer QGIS Import jp2 - Export jp2? - Is that possible?
I would like to do a georeferencing via QGIS 3.22.5.
I'm using the standard implementation at the menu point "Raster" -> "Georeferencing". My import file is a jp2-format and ...
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Creating polygons from rasters using color values via a color sampler in QGIS
This seems like a question that should have been asked, but the trick with all this is in knowing how to ask the question. I would like to use the background satellite imagery from GE or Bing or ...
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How to specify visible extent of raster in QGIS without clipping original
Is there a way to limit how much of a raster is shown in QGIS3 without clipping the raster to a new file?
In my old workflow from Arcmap I would georeference scanned maps or rasters with tics in the ...
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Georeferencing PNG from bounding box in GDAL?
I have an image in PNG format and bounding box coordinates (upper left, lower right). How do I georeference it using command-line interface tools such as GDAL (or Python if it is not possible)?
In the ...
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Does the QGIS Georeferencer have a point prediction function?
When taking GCP using Georeferencing in QGIS,
Is there a point prediction function?
For example, when working on GCP in an ERDAS program, put reference coordinates (ex: 10 coordinates)
After taking ...
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QGIS PROJ custom CRS for only shifting X and Y
I'm not very fluent with CRS and custom CRS but I'm only want to shift X and Y WGS84/32N coordinates.
For example: with point A(115633.49, 57104.49) of my maps,
in EPGS:32632 would be A(1112126.15, ...
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How to georeference image with GCP in aux.xml using Affine transformation
I'm trying to automate georeference of big amount of non/georeferenced image file stored in TIF format to work with them in QGIS 3.16.4-Hannover.
These TIF files are 8 bits (B/N) and I only have aux....
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Difference between control point, reference point, and tie point
I georeferenced a map using grid coordinate and road network shapefile (e.g. intersection vertex) as a control point. I didn't acquire a control point through the survey.
I use "control point (...
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BlenderGIS: georeferencing and exporting 3d model?
I can add a georeferenced basemap using BlenderGIS and overlay my 3d model on this basemap.
I want to export this 3D model as a georeferenced file, but only see a shapefile export option (which cannot ...
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Georefence a PPM raster with GDAL
I have a PPM with a GEO file but GDAL does not recognize the GEO file.
emwin@weather:~/SPLAT/bin$ cat roeske_bridge.geo
FILENAME roeske_bridge.ppm
# X Y Long Lat
TIEPOINT 0 0 ...
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How to calculate rigid geotransform (scaling and rotation only) from GCPs in Python
I've been georeferencing images using automatically detected GCPs using Rasterio but it only has Affine transforms. I'm aware that QGIS has some rigid transforms as an option in the Georeferencer tool ...
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Georeferencing a large set of points
I have a static image of a map:
And I would like to obtain the coordinates of each blue point. I am very new to QGIS but I have done a very similar task but for a much smaller set of point. My ...
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QGIS georeferencer - user profile problem
When running the georeferencer I sometimes find that the progress indicator hangs after a few seconds with a non-responsive message following which the program becomes unresponsive and QGIS needs to ...
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How to write a georeferenced GeoTIFF from known coordinates with Python rasterio
I have three numpy arrays, one with data, and two more with explicit longitudes and latitudes. I'd like to write this data to make a GeoTIFF file with rasterio such that I can load it with QGIS. The ...
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QGIS crashes when loading DWG file in Georeferencer
I am trying to use QGIS to georeference a CAD file. I open Raster/Georeferencer and then click on the Open Raster icon. The first time I tried this it warned me that it would only accept DWG R2000 [...
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QGIS georeferencing leads to wrong position
I'm trying to georeference a TIFF file in QGIS (version 3.20.0-Odense) based on a WMS layer (EPSG:4326). The project is in EPSG: 25832 and I used the same as output for the georeferencing (4 points, ...
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Continuous errors in georeferencing - rotated, scanned images in QGIS
I have >200 scanned maps for georeferencing (downloadable example). But as soon as I load them into the georeferencer in QGIS they appear rotated 90 degrees (E or W). Despite the rotation, when I ...
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Rectifying data source for MXD file using ArcMap
I tried to rectify my data source on ArcMap but was unable to locate my data file which is an MXD file.
How can I rectify the data source for an MXD file ?
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Open Georeferencer with layer path in PyQGIS plugin
I develop a QGIS plugin that includes a step of georeferencing. I want to open the Georeferencer from QGIS and to load an image with its path when I click on a PushButton.
I found this topic : Open ...
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Georeferencing with only single coordinate
I'm currently examining the new proposed sampling points based on a drainage map without coordinates. Previously, I was only given a single coordinate given by the consultants for their monitoring ...
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GeoPDF added into QGIS gives a broken raster; GeoReferencing it gives an invisible output
I've been attempting to add a GeoPDF to my QGIS 3.16.14 project. The PDF is available here: https://reliefweb.int/sites/reliefweb.int/files/resources/reach_irq_map_mosul_city_reference_08nov2017.pdf
...
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GDAL georeference multiple PNG images as GEOTIFF with different size and extents
Following my problem described here:
Georeferencing PNG image by GDAL in QGIS
I would like to make some batch image georeference in GDAL. Unfortunately I couldn't find the reasonable solution for it. ...
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QGIS Georeferencer: How to deal with .points file using different CRSs?
I have some scanned maps as tifs and their corresponding .points files. The GCPs were set by different users erroneously using different CRSs. E.g. Of 340 points 180 were set using EPSG:23700, 160 ...
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QGIS 3.22 Georeferencer Coordinate Reference System Selector not showing
I'm using QGIS 3.22 trying to go through the 3.16 training manual - 14 Module: Forestry Application - When following the manual instructions after opening the Georeferencer and loading the raster, ...
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Georeferencing in QGIS [duplicate]
I am doing georeferencing in QGIS. I have a file saved with the extension .tif. This file shows a map created in epsg: 2175. What should x and y be?
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Exactly what does it mean that CAD file is georeferenced?
According to a post like this, a DWG/DXF can be "georeferenced", but not all are. I guess the same is true for other CAD formats too. But exactly what does that mean that a CAD file is ...
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Checking DWG/DXF file is georeferenced
I'm working on importing a DWG into QGIS, possibly by first converting the DWG to DXF, but am not having luck with it.
According to a post like this, a DWG/DXF can be "georeferenced", but ...
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Gettting data from georeferenced PNG QGIS
I'm working on a predictive system and was able to locate a PNG from another researcher showing a heat map of Oklahoma. I was able to georeference the PNG and bring it into QGIS 3.22. What I need to ...
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DragRotate Interaction Distorts GeoTIFF OpenLayers 6.9.0 [closed]
Context
I have some GeoTIFF files that are loaded directly into OpenLayers via a WebGLTile Layer with a GeoTIFF source. My code is similar to the example in this workshop. I am also registering a non-...
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Georeferencing raster image in JavaScript
I was wondering if it is possible to georeference raster image using some kind of JavaScript lib or external API or other kind of service. My project is written in React with Mapbox GL JS. I wanted to ...
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What sensor data is required to georeference remote sensing images?
The start-up I work for is planning to capture remote sensing imagery from cameras on-board our stratospheric balloons. We would like to be able to georeference the images we capture.
If it is ...
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gdalbuildvrt does not support ungeoreferenced image
I'm trying to create a VRT file from a GeoTIFF file using the following command:
gdalbuildvrt.exe "C:\Temp\3533.vrt" "C:\Temp\3533.tiff"
However it returns this error:
Warning 6: ...
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Georeferenced image in ArcMap: replace the image file, keep the georeferencing information
I have georeferenced the image myimage.tiff in ArcMap 10.8. The file bundle of that georeferenced image then is:
myimage.tfwx
myimage.tiff
myimage.tiff.aux.xml
myimage.tiff.ovr
myimage.tiff.xml
In ...
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Importing a 30 MB PDF file
I want to import a PDF (approximately 30 MB) and perform Georeferencing.
However, when I try to import the PDF to the "Georeferencer" my CPU usage boosts up to 100%, QGIS freezes and does ...
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Re-georeference an image that already has a spatial information
I have an aerial image that already has geo-spatial information (already georeferenced), but the original georeferenced location is very rough (not accurate). I wanted to create ground control points ...
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Georeference Sentinel-3 Data with irregular grid
I need to georeference and subset a lot of Sentinel-3-Syn-2-Files. Every data product provides seperate NetCDF-Files for each band and the actual (irregular) coordinate grid called 'geolocation'. So ...
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Checking residual of GeoTIFF if it came from db
Let's say we have a GeoTIFF georeferenced by points indicated manually on map canvas. Is it possible to check residual accuracy of the raster if the layer comes without points file (in GeoPackage for ...
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Reversing geo-referencing formula of a GeoTIFF using world file information
I am trying to reverse the georeferencing formula for a TIFF using the world file information. Formula found at http://webhelp.esri.com/arcims/9.3/General/topics/author_world_files.htm
The raster is a ...
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How to copy coordinates from a .tif that has coordinates to a .tif that does not have coordinates?
So I have done some RGB-channel extraction from a .tif file, meaning I took UAV_image.tif and I have extracted R,G,B channels on three different .tif files. Next, I did some calculations such as ...
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Georeferencer PDF Image missing data
I am very new to QGIS and have been using it to create some Georeferenced overlays of aerial photographs and title plans.
I have sucessfully completed it several times but have come up against a ...
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Georeferencing PNG image in QGIS when the coordinates of image corners are known
I have the image such as this:
everything would be fine, but I cannot really use the normal georeference method explained here:
https://www.qgistutorials.com/en/docs/georeferencing_basics.html
...
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Changing georeferenced raster source priority GDAL
About 800 historical images have been georeferenced in ArcGIS Pro. A little explanation about the process:
These maps have been clipped in Photoshop and saved as TIFF's. These have been georeferenced ...
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Batch Raster Georeferencing GDAL plugin in PyQGIS
I use to manually georeferencing rasters using the plugin GDAL using:
raster .tif
4 gcps in a file .point
and it results this :
My aim is to batch this method for thousand of rasters (drone ...
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Output VRT from 3 tif files is incorrectly georeferenced despite having correct and same CRS
I have 3 .tif files of a Natural Earth world map, each representing the bands of the source NE world map.
I run gdalbuildvrt -a_srs EPSG:4326 -separate rgb.vrt red.tif green.tif blue.tif to create a ...
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Google Earth Engine coordinate system of point sample
I am taking a random sample of points from a landcover raster in GEE. I then overlay those points with other rasters and extract pixel values (to be used for regression analysis). I want to know what ...
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Struggling to line two raster layers up with one another
I have a UAV survey of an agricultural trial site and I'm trying to analyze the imagery in QGIS.
I've been working on a multispectral .tif file and I've recently recieved a DSM (digital surface model) ...
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Exporting map to image using PyQGIS
I have a transparent raster on top of a hillshade.
I want to Project - Import/Export - Export map to image using PyQGIS:
I need to be able to set extent, scale, dpi and the output needs to be ...
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