Questions tagged [georeferencing]
Aligning geographic data to a known coordinate system so it can be viewed, queried, and analyzed with other geographic data.
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What points should I add or sampling should I change to get a better georeference within QGIS?
I am working with an image that I need to georeference onto a base map. I have already added two other images to the map with minimal issues. They are not 100%, but they are good enough for this.
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Trying to determine which CRS this GML uses
I am trying to locate an area that is currently in GML format. I know it is somewhere in Istanbul but I need to know which Coordinate Reference System (CRS) it uses to overlay it with other maps. ...
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QGIS navigates to some other coordinate locations...Facing problem while dealing with coordinate systems
In QGIS 3.32, I want to do Geo-referencing of a vector shapefile.
The project coordinate system is Projected Coordinate System WGS 84 / UTM zone 43N EPSG 32643.
Two layers (Google Satellite Hybrid AND ...
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Open georeferenced TIFF in Photoshop
I have a large, approximately 9 gig, georeferenced TIFF image. I want to open it in Photoshop but I do not care about losing georeference info. But Photoshop only shows the image as white. How do I ...
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PDAL translation seems to be causing a scaling
I'm trying to georeference a .laz pointcloud in order to correctly show it in QGIS on a map. I notice however that while using the pdal transformation, there is a change in the scale of the point ...
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Move GCP point in QGIS Georeferencer
I can't figure out how to move a GCP in the QGIS Georeferencer. In the georeferencer I click on the "Move GCP Point" icon and a cross-hairs appears on the map image. I center the cross-...
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QGIS Georeferencer points file saving projection data
After georeferencing .points file shows some unnecessary data like CRS data and some other, I want that after georeferencing points file keeps only points coordinate data. Is there any chance to ...
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How does one encrypt a georeferenced PDF map
As a hobby I make georeference PDF maps on QGIS and use it on Avenza Maps for hiking trails remote reserves. Is there anyway to encrypt the map so it cannot be shared? I put many hours into a map ...
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Plugin Vertical Photo Placer on QGIS - How to use
Is someone already used the plugin "Vertical Photo Placer" on QGIS ?
Apparently, this plugin is able to use data contained in the EXIF (coordinates, altitudes, etc.) and the dimensions of a ...
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High-quality PDF becomes pixelated when opened in QGIS
I am currently working with a high-quality PDF file that displays perfectly when viewed in Adobe. However, when I import this file into QGIS for georeferencing, the quality significantly degrades and ...
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GeoJSON points not referencing to OSM map in QGIS
I've got a GeoJSON file that's written like so (it's 70 points, but for brevity I'm showing 5 here)
{
"type": "FeatureCollection",
"crs": { "type": "name&...
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Georeferencing to UTM coordinates from MATLAB script gives an offset in QGIS
I have a MATLAB script to georeference a matrix to UTM coordinates, that can be imported into QGIS. The script (1) works as intended, although with a slight offset from the true position when I import ...
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Georeference Suomi-NPP NRT HDF to GeoTIFF
I am trying to georeference Suomi-NPP VNP09_NRT (Near Real Time) data that is in HDF format (example) to GeoTIFF using only GDAL.
Currently, this is my code:
def georeference_array(array, ...
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How to automate creating GCP between two images
How can I align Ortho1 to Ortho2.
Ortho2 is is the correct spot. Ortho1 needs to be shifted to align with Ortho2.
I know how to do this manually, with QGIS or ArcGIS create the tie points. But we have ...
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Create a Pixel-Is-Point GeoTIFF using GDAL C# Bindings
What is the appropriate way to create a GeoTIFF using GDAL such that the georeferencing is done based on the Pixel-Is-Point interpretation?
My assumption is that this is the best bet at ensuring that ...
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How to give a coordinate to *.tif?
I have a *.tif, vintage aerial photo. Also, there is a metadata with coordinate information corresponding to the aerial photo. I would like to give that coordinate to the .tif.
First of all,
When I ...
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Is QGIS Server's PDF output georeferenced?
QGIS Server supports the GetPrint WMS request and for it, the pdf output format: https://docs.qgis.org/3.28/en/docs/server_manual/services/wms.html#wms-getprint-format
Is this a Geospatial PDF or a ...
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Fail during georeferencing an old map
I want to georeferencine an old map, but unfortunately, it failed.
I use QGIS 3.28 LTR to conduct this task. The process which I have conducted as follows:
This is the projection which is written in ...
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Accurate Georeferencing of ETRS89-Projected Image and Conversion
I'm seeking assistance with georeferencing the attached image. The image indicates that it is projected in ETRS89, and I have obtained Northing and Easting coordinates by tracing the cross symbols on ...
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How to add pixel referenced rectangles to a georeferenced raster image
I am using AI to detect images in a georeferenced photo that is say 4500 by 3000 pixels. The AI gives me bounding boxes that surround the images it has detected and provides a text file with bounding ...
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How to georeference layers
I have this problem clearly shown in the image, I want to overlap the two layers, how can I do that? Both the two images are in EPSG:4326.
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QGIS: georeference a jpeg map working on avenza maps app
I am trying to georeference a map on QGIS. I used this video to teach me how to do it, https://www.youtube.com/watch?v=jKLBFddpTGI. I found it fairly easy to do. I do use WGS84, that was the first ...
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Georeferencing Polygon Features using ArcGIS Pro
I am using ArcGIS Pro to perform an image classification. To do this I need training data polygons derived from the image which is being classified. I created training data polygons outlining features ...
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Weird rotation behavior while georeferencing in QGIS 3.30.1
I am working with a project which is rotated 20 Degrees (see lower right corner of screenshot). I had someone from Fiverr render out a relief map for me to put in as a background. They supplied me ...
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Geo-reference vector data with GCP and target area
I have to geo-reference village maps(vector shapefiles) with the help of GCPs. In the transformation, the areas of the polygons need to match closely with their target values.
Is there a QGIS plugin ...
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Georeferencing a traced polygon
As a novice, I have drawn a DXF polygon (traced from a UK Ordnance /survey map of unknown scale).
It has no geographic reference and when I import it to QGIS (with a Google Maps base layer) and save ...
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In QGIS Georeferencer: Mysterious OGR Driver Error: not found OGR
I have been georeferencing Vector files (gpkg and shp) in the new Georeferencer in QGIS 3.30.1. The files are pretty large, have multiple million features and a size of roughly 2-3gb.
I have ...
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Is it possible to georeference drone images in QGIS?
I've done a search and haven't found any recent threads regarding this.
Is it possible to georeference drone images using QGIS?
Ultimately I would like to import these photos into C3D
I look forward ...
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Georeference toolbar in QGIS does not show up [duplicate]
I need to use Georeference toolbar and I searched for it under Raster tab, but it was not there. I searched for its plugin to install, but there is no Georeference plugin to install, instead there is ...
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Which resampling method to use when georeferencing with QGIS/GDAL
Using Georeferencer in QGIS (which in fact uses GDAL library), in transformation settings you can define the Resampling method as can be seen on the screenshot. I am wondering on what it depends which ...
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How can I convert South and West coordinates to align to X/East and Y/North in QGIS?
So I have an image I am trying to georeference using QGIS. The coordinates I want the image to be placed at are:
top left = 50N, 140E
top right = 50N, 160W
bottom left = 15N, 140E
bottom right = 15N, ...
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How to georeference/convert an image to GeoTiff using Gdal without upper and lower coordinates [duplicate]
I have an image that i want to convert to GeoTiff(Georeferenced image), but i don't have upper and lower coordinates to map for that image. However i have the coordinates at specific pixel value of ...
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Georeferencing list of polygons in QGIS when CRS is unknown
I have a list of neighbourhood polygons in Casablanca, Morocco, which have an unknown CRS. Here is a link to one of the polygons: (link to a json).
I have tried several CRS in QGIS, but none of them ...
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Warp modern data to fit an inaccurate old map
I want to make a modern relief map with DEM and an old scanned map. So, I want warp the scanned map it to fit modern data. But I want to do it inversely: warp modern data to fit an inaccurate old map.
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How are "SourceX" and "SourceY" calculated when georeferencing an image?
When Georeferencing an image in ArcGIS, we create a table of control points. These points have 4 pieces of data: SourceX, SourceY, MapX, and MapY. SourceX and SourceY are the coordinates of the points ...
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Georeferencing two georeferenced TIFF files BUT scale of output file is too big
I have two GeoTIFF referenced files of a tree orchard and when imported into QGIS they are slightly misaligned from each other and I want to ensure alignment of the corresponding tree with each raster ...
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Warping ArcGIS 9.2 georeferenced TIFFs using GDAL warp
I have hundreds of very large TIFFs which were georeferenced 15+ years ago using ArcGIS 9.2. Viewing them in ArcMap 9.2 the images are properly located and sized/warped on the map. However, they ...
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Use Georeferencer GDAL plugin on QGIS to create a GeoTIFF if the latitude and longitude boundaries are known for a raster image
What I have/know:
I know the latitude and longitude boundaries for an image
I am using the EPSG:4326 projection
QGIS with the Georeferencer GDAL Plugin Installed
Is it possible to create the ...
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QGIS Georeferencer problem
I have a problem with the georeferencer. When I try to georeference a satellite image with no coordinates I get a very high dx,dy and residual values. I use Google Satellite as a base map. The ...
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How to georeference a PNG in ArcMap without losing transparency?
I am creating a geologic map in ArcMap and I want to georeference a PNG of my topographic contours. I need to use a specific set of contours, so I cannot generate them within Arc. I have PNG file that ...
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QGIS: It is possible to georeference a map that is only 1 meter square?
Using the default CRS in QGIS EPSG:4326, it is possible to georeference a map of an area that's only 1 meter by 1 meter?
The picture below represents a track that can be built using approx. 15" ...
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Hotkey for switching between pan and add point in QGIS georeferencer
I'm working on a project that involves a lot of georeferencing using QGIS's georeferencer tool. My workflow is generally as follows: add a gcp, then pan across the image a bit until I find another one,...
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GeoReferencing Mars imageries
I am trying to make a 2D planer map of Mars, I have multiple non_georef images along with their geocentric lat and long. I am using gdal.GCP to georef these images; its working but something seems off ...
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Georeferenced image not showing in QGis
I am trying to get a Georeferenced image into QGis project, but it does not work.
The georeferenced image has 81 points, and I've set the CRS to EPSG:3035 (the same as the project).
If the QGis ...
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Removing georeferencing from DEM using ArcGIS Pro
I am creating an assignment for students to demonstrate different visualizations of LiDAR-derived DEMs. However, because the DEM is currently unpublished and contains archaeological features, I want ...
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Georeferencing Webcam Image using ArcGIS Pro
I want to georeference pixels from a webcam image.
I have the camera location, and some control points of pixels to map coordinates. I am trying to figure out the math to do the translation. I don'...
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Removing RTK Correction from Images
I am doing a thesis research and I was supposed to analyze an un-corrected dataset (drone images collected only using GNSS).
When I load the images into Agisoft Metashape (professional version 1.8.4 ...
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Why does the georeferencing tool in QGIS 3.28.2 place the referenced image in the origin of coordinates even though all points have the correct coods?
I am trying to georeference a map with the build-in georeferencing tool in QGIS 3.28.2.
Usually, it works perfectly well. I have set my Project CRS to the target CRS and the CRS of the to-be-...
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Georeferencing in QGIS [duplicate]
ask about QGIS and georeferencing, in version 3.28 I can't find it in plugins, neither to activate it nor to install it, can someone guide me how I can make a georeferencing in this version of QGIS,
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raster_value returns lat/lon instead on X/Y
I have a project where the CRS is ESRI:102748.
When I use the Value Tool to hover the mouse over the raster, it returns the coordinates as X,Y,Z in feet.
I have a SpatiaLite point layer where I insert ...
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