Questions tagged [georeferencing]
Aligning geographic data to a known coordinate system so it can be viewed, queried, and analyzed with other geographic data.
1,121 questions
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Georeference one vector layer using another vector layer in ArcGIS Pro?
I'm unsure if this what I'm looking to do is possible...
I have two polygon layers - the orange layer is georeferenced and blue is not. The pink is just a boundary layer (can be ignored). The orange ...
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Georeferencing drone image different pitch-values
I am trying to georeference objects on an image. The image has been taking by a drone and I know the drones parameters.
Here is my script:
from math import radians, cos, sin, asin, atan2, degrees
from ...
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Finding Georeferencer in QGIS
I'm using QGIS 3.26 and I can't find the Georeferencer.
I've basically looked everywhere. It should be in the raster section, but it isn't there. I checked all of my plugins if there was anything, but ...
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QGIS 3.34: Permanently saving file name and location for georeferencer's output file
Is it at possible to permanently change the file name template for the georeferencer's output raster file?
I would like to save my files as
source-directory\georef\original-filename georef.tif
...
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Error in georeferencing using QGIS
I was georeferencing a tiff image. But the Georeferenced output is showing GCPs only. The image is not being georeferenced.
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Transformation of a point with GDAL
I know the place where the image was captured and I've made pixel to lat-lon correspondences (GCPs).
After running the following GDAL commands a .tif file is created.
gdal_translate -of GTiff -gcp {...
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Converting PDF Map Coordinates to Projected Coordinate
I am trying to georeference a number of PDF documents automatically. I am able to extract the vector data from the PDF - the data is a series of lines representing cadastral boundaries. I can load ...
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Is there a way to change the color of the black pixels generated by georeferencing? [duplicate]
When I georeference, QGIS creates black pixels to fill the empty space caused by rotation. As a background, so to speak. How can I set it to be white pixels instead of black?
This is the *.tif i get ...
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QGIS georeferenced layers slightly out
I am georeferencing three different maps that include collected data. I take pictures of the maps in order to georeference them (with as near the same set up for all e.g., tripod distance etc). I save ...
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Click and drag georeferencing
I am looking for a way to take a group of layers in QGIS and be able to move/geolocate them. I need to offset hundreds of TIFF raster files that are currently in a QGIS group, and I don't have a ...
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Choosing projection system to use when georeferencing PDF maps
I need to georeference a PDF map and digitize the features on the map into a shapefile using WGS84.
Is it best to georeference the PDF map and digitize the associated features in a local projection ...
CommunityBot
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Wrong parameters when georeferencing single drone images
I am using a DJI Mavic 3M drone to capture images from the ground view. DJI provides a guide on how to correct the images for the lens distortion. Each captured image contains XMP metadata about the ...
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How to enable automatic georeferencing of hand drawn lines
Our company does a lot of bird surveys, we often need to draw flight patterns on a paper maps and convert these lines into shapefiles to create digital maps (e.g. of migration routes) for our reports.
...
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How to break up layers when georeferencing in QGIS when adding to project
I'm trying to take an Illustrator file that has multiple layers, and get it into QGIS to georeference each layer. I've been able to get the entire polygon in as one layer, but I can't figure out how ...
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QGIS Raster Georeferencer adds black padding to corners of adjusted black and white TIFF image
After georeferencing a black and white TIFF image, the QGIS Raster Georeferencer fills the corners with black pixels, creating black elongated triangles along the edges of the new image. I could not ...
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Georeferenced image not showing in QGis [closed]
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 ...
CommunityBot
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Georeferenced raster image not appearing on map in QGIS
I imported a PNG file into QGIS for georeferencing, and set it to add automatically to map after finishing the process. However, once its job was done and the new layer and joined my list panel on the ...
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How to create a transformation vector and apply it to a vector layer?
I have 3 layers I'm working with. I'll call them A,B and C.
Layer A - Satellite Imagery of location X (2017) (tiff)
Laber B - Satellite Imagery of location X (2021) (tiff)
Layer C - Vector Polygons of ...
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How would I go about efficiently digitizing intersecting polygons from a georeferenced map by snapping vertices in QGIS?
I have a map I've georeferenced in QGIS that has a lot of intersecting and adjacent polygons. I want to efficiently snap the vertices together as I draw the polygons because I don't want overlaps and ...
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Georeferencing rasters using GCPs in R: stars/terra equivalent of gdal_translate / gdalwarp?
With the retirement of rgdal and transition to sf/stars/terra functions in October 2023 now passed, is there a way of georeferencing raster images with GCPs (Ground Control Points) other than using ...
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Cropping georeferenced map JPEG within QGIS
I have a geology map I georeferenced in QGIS, but I want to crop out the edges/margins/legend because I have other geology maps I want to georeference and stitch next to it, but the unused margins of ...
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Edit an old georeference raster projection in QGIS
I have created a map from a picture. And now I have some more detailed pictures and georeferenced them. Is there any way to quickly access them later on.
I mean everything is fine with georeferencing....
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Transformation types in geo-referencing of QGIS?
I am a beginner in geomatics.
I am trying to georeference some images in QGIS.
I would like to understand what is happening behind the different transformation types (linear, polynomial, Helmert...)....
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QGIS3 georeferencing an unreferenced PNG and it isn't showing up on my base map
I'm using QGIS3 to try to georeference a screenshot of an old map of a state park (the PNG file) to a shapefile of the park's boundaries by matching points in the park's boundary. When I tell it to ...
- 20.3k
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Overlaying PDF map onto satellite image using Google Maps
I have a PDF map of property limits (black lines on white background).
I'd like to overlay it onto a satellite image (google maps is fine, but really any that is precise enough) to show errors in the ...
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Installing Georeferencer Plug-in to QGIS on OS X [closed]
I'm trying to install the Georeferencer plug-in in QGis 1.7.0 on Mac OS X (10.5.8).
However the plug-in doesn't show up in the list. I have used "enable 3rd parties directory" and I have ...
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Determining projections for 10,000+ shapefiles covering 3 UTM zones
I was handed a ton of property files with no projections attached but was told they are all in UTM zone 21S. Well once I merged them all together and projected them I realized that the data covers 3 ...
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CRS for georeferencing TCP flight maps of Spain
I want to georeference TCP flight map of Spain.
It says: Lambert Conformal Conic Projection
Standard Parallels 41dg 20' and 46dg 40'
Convergence factor 0.69491
QGIS does not offer this CRS and even ...
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613
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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 ...
- 65.4k
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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 ...
- 7,450
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How to georeference a radar PNG/GIF in Python [closed]
I have this data (image attached). I need to georeference it using the data available in the image itself.
Additionally I have one pair of coordinates for the said image provided.
17.74811366,83....
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XY coordinates efficient way to copy
I get XY coordinates of point features delivered to me in PDF format, this means that to bring them into ArcGIS I manually have to enter them first into an excel spreadsheet.
Is it possible to copy ...
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QGIS Georeferencer - Image file imports too small
I am trying to georeference a largish aerial image (50MB) to some GIS data I have and import it as a background. However the image imports extremely small - so small I can't see it!
I am using QGIS ...
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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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154
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Image Resolution degrading when georeferencing
I have a scan of a historical map in pdf. I converted it in to png as well as tif and then georeferenced it. However, as soon as I load the image (both png and tif) in to the georeferencing tool the ...
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QGIS geotrace languages from a given image of a map
I have a linguistic map of the Caucasus and I need to geotrace the languages that are on the map, preferably in QGIS.
Is there any way in which I can do it easily?
Here is the map:
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Removing Raster from Map View using ArcGIS Pro
I am converting from ArcMap to ArcGIS Pro 3.x. I have a number of rasters that were georeferenced in ArcMap that I have brought over to Pro. I have - I think - worked out a way to place these ...
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14
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QGIS Georeferencer Failing to Compute Transform
I've been using QGIS for quite some time, but have encountered a problem that I can't seem to resolve. I am georeferencing an aerial photograph. I have established ample GCP points. After a fresh ...
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Assign CRS for drone imagery
I am importing TIFF imagery from the Phantom 4 Multispectral drone which does not have predefined CRS. When I double click the layer and go into the source tab and select a CRS, it displays over the ...
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Georeferencing using QGIS
I georeferenced two maps for project. Points that were referenced are now stuck on my main project and I don't know how to get rid of them.
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Georeferencer could not create file
I am trying to transform a tif file using GCP points and Georeferencer. First, there was a problem that QGIS gave the error Error creating GDAL transformation. Then I changed my points and made less ...
CommunityBot
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How to get bounding box coords?
How to get coords for NW and SE if we have about 4-5 pixels on the image with assigned latit/longit? I'm working on javascript app which would overlay that image on Google Map then.
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How to apply "direct georeferencing" with PTZ camera?
I have images taken from Mavic 2 drone over the ocean,
and the images have been taken with the orientation angle (roll, yaw, pitch) of both drone and gimbal.
With these tilted environment, I want to ...
- 10.5k
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Coordinate system and projection for georeferencing Google Maps image in ArcGIS Desktop?
I have saved Google Maps image (not Google Earth) of area at latlon(17.692437,83.218689) by some method in jpeg format. It is an exact snapshot of the Google Maps. Now I need to geo-reference it to ...
- 20.3k
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CRS to use to georeference an 19th century Ordnance Survey 1 Inch map
I have a raster of an Ordnance Survey 1 inch map that was surveyed in 1843-57 and subsequently revised in 1896 and published in 1898: Sheet 50 - Hawes. When georeferenced in QGIS using OSGB36/British ...
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Projection issue QGIS3.2 [duplicate]
I georeferenced all my layers and set it to NAD83 CRSUTM 17N for the whole project, as well as individual layers. Checked and re-tried everything but the raster is still ending up in water somewhere ...
- 20.3k
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203
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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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73
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How to georeference a big file without creating an output file
Using QGIS 3.28.11, I have a very big file (0,5 Gb) which is oriented but not to scale (definition unknown) and not georeferenced (but the coordinate system used when creating the file is known).
Is ...
- 20.3k
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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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2
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3k
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Defining projection and coordinates of Ukrainian topographic map
I managed to get Ukrainian topographic map
I'd like to do the georeferencing in QGIS.
The problem is that I don't have a clue which projection was used and how to read the 'X' and 'Y' coordinates in ...
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