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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1answer
129 views

georeferencing raster data with unknown CRS

I’m new to QGIS and georeferencing raster data. I have a raster dataset with unknown CRS. The coordinates for goerefencing the raster data with reference points (x = 589 Y = 1483 / x = 500 Y = 1500) ...
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1answer
4k views

Georeferenced TIFF to Google Earth?

I have aerial view images (.TIFF) which I have georeferenced using ArcMap 10.4. What I am trying to do with the images is export them with the georeferenced data attached and import them to Google ...
3
votes
1answer
908 views

Openlayers 3 - georeferenced ImageStatic

I am trying to display a georeferenced image (in 4326) over a Bing map in OL3. The ImageStatic is the following. var view = new ol.View({ center: [0, 0], zoom: 15, ...
3
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1answer
1k views

QGIS: raster image georeference and overlay

I've created a grid and points in QGIS which I used to survey. Using a test image at the moment and I'm trying to fit this image as an overlay within a boundary. When I insert the image it has a white ...
3
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1answer
832 views

Georeferencing uneven/irregularly gridded rasters using GDAL?

I'm trying to take a set of NetCDFs and turn them into georeferenced datasets using GDAL. However, the only Geospatial data is a set of 2-D lat/lon arrays. The projection type is not lat/lon. THe ...
3
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1answer
49 views

Control points display location changes with scale

I'm trying to georeference an image by choosing points from Map (imported from Google hybrid) however the resulting tif is in no way located similar to the points (in fact the control points don't ...
3
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2answers
1k views

Python Script: Automatically georeference photographs (To be used in ArcMap)

I have 563 photographs that have been taken as part of a site survey. The only location information that I have is a single GPS location (lat,long) at which the photograph was taken. I'm looking for a ...
3
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1answer
348 views

What are the set of projections that can be accurately georeferenced using polynomial 2?

Background I'm starting with a map from the internet (Encyclopaedia Britannica) and georeferencing it using QGIS 2.0.1, I get really accurate georeference solution using polynomial 2 transformation: ...
3
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1answer
655 views

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 ...
3
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1answer
1k views

Automatically georeference hundreds of png files based on polygon vector coordinates

I have 1000 polygons in my shapefile. I also have 1000 PNG files. Do you think it is possible (based on a common attribute), through a script or something, to assign each of those PNG files to a ...
3
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1answer
227 views

QGIS 1.7 + MacOS 10.6 : georeferencing from map canvas bugs

I am experiencing issues with the gdal plugin to georeference a raster. It works fine when I enter the coordinates manually but it does not work when I try to link the plugin with the map canvas. ...
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0answers
48 views

Mapbox - Uploaded GeoTIFF file has no bounds

I'm trying to add GCP data to an old map and then upload it as a tileset to Mapbox. I've managed to add the data using Georeferencer and the output in qgis looks okay, but when I upload it as a ...
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0answers
789 views

How to get EPS vector as georeferenced layer into QGIS

I've got a eps-file with polygons of landuse. The file have got coordinates to georeference it. I need to convert it into a geo vector. I could do the following steps: export/convert the eps to ...
3
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0answers
68 views

QGIS - Layer missing polygons after pointsfile transformation

I'm using pointsfile transformation in QGIS for the georeferentiation of my layers. After the transformation the result some times has polygons missing like here: Why is this happening? How do I ...
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0answers
71 views

Exposing function or transformation matrix that QGIS georeferencer develops to georeference raster?

The problem: Think of the London Tube Map. Logically correct, but physically inaccurate. I want to display such an arist's impression (un-transformed, so recognisable) on a mobile web site and have ...
3
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0answers
125 views

How to reload a georeferenced image in QGIS 2:16? [closed]

I georeferenced an image in QGIS 2:14 and these are the resulting files: RawBingHybr17.bmp RawBingHybr17_georef.tif RawBingHybr17.GCP.points RawBingHybr17_GCPpoints.points I´m note sure if they are ...
3
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0answers
590 views

QGIS georeferenced image does not apear in the map area

I'm having issues with some georeferenced images in QGIS 2.10.1-Pisa. I generally georeference PDF's of new land subdivisions over aerial photos to get the layout of the new subdivision, generally ...
3
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0answers
243 views

QGIS 2.10 Can't load georeference plugin?

Apparently my problem was already present in older versions of Qgis. I don't know how to fix it, knowing I have a Linux system (Fedora 23). Somethiing similar here : Where to download QGIS 2.10? So, ...
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0answers
153 views

Batch Georectifying Imagery

I have a large collection of drone images that aren't georeferenced. I'd like to georectify them by pulling projection and coordinate data from the GeoTiff files, but I'm having difficulty. My ...
3
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0answers
2k views

Merge several images and Export a GeoTiff File

I have approx 500 geo-referenced images that I was hoping to merge into 1 geo-referenced file, and export it as a single geotiff file. To be used in AutoCAD Civil 3D I know I am pushing my luck and ...
3
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0answers
4k views

Aerial photo stitching and georeferencing? [closed]

I need to georeference 53 air photos from 1981 (1:25,000 scale) and was wondering what would be the most efficient, defensible, and accurate option. For context, the air photos are following a highway ...
3
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0answers
259 views

Incorporating known GPS/INS data to automatically produce geo-registered 3D models

I am trying to reconstruct a 3D building model from 2D video frames using an open-source Structure-From-Motion(SFM) software (Bundler). The final reconstructed 3D model will be in Cartesian ...
3
votes
1answer
257 views

Join .csv file and .shp of georeferenced points

I have georeferenced a map and saved a selection of some points on the map. These points are cities of departure and arrival and I want to join the .shp with a and excel .csv with the information of ...
2
votes
1answer
11k views

How to display a .jpg file in ArcMap for georeferencing? [duplicate]

I'm struggling to georeference a .jpg map. When I load it in to ArcMap, I cannot see the picture at all, so I cannot georeference it. (I tried to zoom to the map layer but the map just does not appear)...
2
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2answers
233 views

Compressing georeferenced images

I have a bunch of georeferenced TIFF images created in QGIS. The person creating them saved them as uncompressed (around 1 GB each). I would like to compress them as LZW to save space. How can I do ...
2
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2answers
4k views

How georeference a DXF file in QGIS 2.14?

In Illustrator I exported a PDF as DXF and inserted it in QGIS as Vector and obtained two layers as points and lines but it is misaligned and in a unknown location. I know georeference a raster file, ...
2
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2answers
2k views

Georeferencing png using gdal?

I have created my own fantasy map, I have the map in a full size png and the map broken down into tiles ( with no geo data ) I installed MS4W and tried to use it to get the georeference data put is ...
2
votes
1answer
1k views

Why are JPG files invisible in Georeferencer?

I want to georeference a jpg file (map) with QGIS 1.8.0 on a Windows 7 (64 bit) machine. The georeference window opens, but the map is not visible. When converting the jpg file into a tif file (e.g. ...
2
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2answers
14k views

I want to georeference jpg map without any digitizing data

I have only a jpg map but don't have any digital data for georeferencing that jpg. So is there any way for georeferencing my map (like googlemaps)?
2
votes
1answer
2k views

gdalbuildvrt error, when using in Python

I am new to python/GDAL and am running into perhaps a trivial issue. This may stem from the fact that I don't really understand how to use GDAL properly in python, or something careless, but even ...
2
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1answer
392 views

Sentinal-2 Georeferenceing [closed]

Are Sentinel-2 data geometrically corrected or do they need to be georeferenced as an image to image? What is the best software for processing?
2
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2answers
542 views

Difference between Geoparsing and Georeferencing

Can anyone please tell the difference between Geoparsing and Georeferencing?
2
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1answer
3k views

How to insert georeferenced PNG into correct location in AutoCAD Map3D?

I have a PNG of building plans that I will need to digitize in AutoCAD Map3D. I have georeferenced the PNG in ArcGIS, which has produced a world file (.pgwx) in the same directory in which the image ...
2
votes
2answers
484 views

Does QGIS georeferencing set to magnetic or grid north for British National Grid?

I have just been georeferencing a map on QGIS using British National Grid and it is not lining up with the vector maps I downloaded from OS. I used the 'From map canvas' option and used 'Linear' ...
2
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4answers
14k views

How to georereference a TIFF file which has already a spatial reference?

I have a TIFF file of Poland and a self drawn vector map of Poland. The vector map has no spatial information. I am intending to reference the TIFF exactly to the shape of the self drawn map. My ...
2
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2answers
2k views

Using Georeference information stored in tfwx (from ArcGIS) in QGIS?

I have georeferenced some images (ArcGIS -> Update Georeferencing) which creates a *.tfwx file with the new parameters for georeferencing. I renamed it to *.tfw but QGIS is not able to read the ...
2
votes
4answers
3k views

GIS newbie, How to georeference a jpeg metro map using OSS?

I have a metro map in jpeg format and I want to georeference it. My goal is to find GPS location of the metro stops and visualize them on google maps. Probably, the first step is to overlay the map ...
2
votes
1answer
64 views

Identifying coordinate system of historical map for Arctic Ocean?

I have a historical map (Arctic Ocean) with unknown CRS system. In order to compare it with my results, I have to merge them somehow. Could someone suggest the closest possible coordinate ...
2
votes
1answer
77 views

QGIS: Georeferencing a scanned map with known LCC projection and lat/long grid

I looking for advice or recommanded methods to georeference scanned maps for which I know the projection and some coordinates with lat/long dat in degrees In my test case, projection is: lcc: ...
2
votes
2answers
308 views

Georeferenced images not lining up correctly with one another in QGIS?

After georeferencing these 3 images onto my basemap (openstreetmap) they do not line up (see how the white lines are mismatching). Why is this the case and how can I solve this problem? I made sure ...
2
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2answers
270 views

What projection is used in Argentina cadastral maps from 1901?

I am looking to georeference and digitize the cadastral maps for Argentina from 1901 and I need some help in determining the projection which was used in the creation of this maps. For more detailed ...
2
votes
2answers
934 views

Georeferencer QGIS not working?

I am trying to georeference a .png file. After inserting all the data I get the following error "Transform Failed: Failed to compute GCP transform: Transform is not solvable." What can be the ...
2
votes
1answer
634 views

Digitizing JPEG image or georeferencing it first?

I'm a new learner when it comes to QGIS. I have a JPEG image and I want to convert it into a shapefile. The problem is when I polygonized it, the resulting image is inverted. So I decided to just ...
2
votes
3answers
3k views

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 ...
2
votes
3answers
19k views

How to add georeferenced TIFF to AutoCAD 2010

I have a ~6GB georeferenced (from ArcGIS) .TIFF satellite image that a colleague wishes to add to AutoCAD 2010. He wants it as a base layer for digitising features from. I have searched forums but ...
2
votes
1answer
5k views

Convert X Y Pixels to Easting Northing

I'm trying to find out what the formula would be to convert the X, Y of an image to the Easting and Northing coordinates. I've downloaded some of the raster maps from OS UK web site and I'm looking ...
2
votes
1answer
745 views

How to add EPSG:5235 to QGIS?

First of all I should say I am new to EPSG and QGIS world.Then I want to Georeferced Raster image to EPSG:5235 in QGIS. But in Qgis I can't found above EPSG. How I add this EPSG to Qgis ? Pls help ...
2
votes
1answer
49 views

What is happening different to my TIFF between export data and arcpy

I am working in FME with TIFFs downloaded from sentinel-1 (SAR). These TIFFs display correctly in ArcMap but in FME is loses its spatial reference and a bound box calculation gives the number of ...
2
votes
2answers
176 views

Producing offset after georeferencing Soviet topographical military maps from printed control point coordinates in QGIS

I have 'acquired' a collection of scans of (previously top-secret) Soviet-era military topographical maps at a set of 1:25.000. I want to georeference a set of these scans. I know the coordinate ...
2
votes
2answers
863 views

Georeference plugin Qgis 3.x not working

I cannot open the Georeferencer in both Qgis 3.0.2 Girona and 3.2.3 Bonn. The plugin worked fine in both 3.x versions until today. It still work in version 2.18.24. It doesn't seem to open any ...

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