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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7
votes
1answer
345 views

Opening MOD17A3 in ENVI so it is properly georeferenced?

I am using ENVI 5.1 on Windows 8. I am trying to open a MOD17A3 (MODIS Net Primary Productivity standard product - L4) .hdf file which I downloaded from the USGS website. I am still a beginner at ENVI,...
5
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0answers
371 views

QGIS Referencer: Tranformed Failed

I'm using a new install of QGIS 2.18.2 on an iMac running OSX 10.10.5. I create a new project. I use the OpenLayers plugin to show an OSM background of a part of Mayfair in London. I now use the ...
5
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0answers
5k views

How to use Scale tool when Georeferencing Raster in ArcMap?

I'm georeferencing a bunch of maps in ArcMap 10.0. The Shift and Rotate commands are pretty easy to use, no problems there. But whenever I use the Scale command, the image completely changes ...
5
votes
1answer
355 views

Displacement when clip raster by shapefile

I run a script to clip raster by shapefile. Even with layers own the same crs (epsg: 4674) the output raster be displaced. I didn't find out in my script what is caused the error. Here is my code: ""...
4
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0answers
142 views

Adjusting georeferencing of GeoTIFF?

I have three thermal IR images of a boat acquired by a drone as it flew overhead. The images were taken at one second intervals, are GeoTIFF files and overlap one another. I don't know exactly how the ...
4
votes
0answers
431 views

Aligning two raster layers in QGIS?

I am teaching myself GIS in baby steps, I recently acquired aerial imagery (employing RGB and NIR-GB sensors) using a small UAV with the intent of generating a map in a small plot of land. After ...
3
votes
0answers
39 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 ...
3
votes
0answers
364 views

Georeference an unreferenced image using rasterio in Python

I have unregistered/unreferenced 6 band TIFF images that I have been trying to export as georeferenced GeoTIFFs. The GPS coordinates of the corners of each image is known and each image is 1024 height ...
3
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0answers
733 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 ...
3
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0answers
70 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
565 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
votes
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, ...
3
votes
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
votes
1answer
252 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 ...
3
votes
0answers
257 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 ...
2
votes
1answer
36 views

Why are certain GCPs in my georeferenced scanned map resulting in warping? (QGIS)

I am having issue with georeferencing a scanned map. Warping has occurred in the West in Morocco (near Marrakesh) as well as a sort of "black holes" in Libya and Northern Chad. As far as I can tell, ...
2
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0answers
53 views

Georeferencing using GDAL geotransform top left corner coordinates

Following this stack exchange example by kflaw, and other examples of the use of geotrasform I am trying to georeference images using pre-computed extent rectangles. However, I am also struggling to ...
2
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0answers
24 views

Adding additional points to GCP table after an image has been georeferenced

I have finished georeferencing an image with no attached coordinate system. I was unsatisfied as the image was not accurately overlayed on the map. The dx/dy & Residual error values are not ...
2
votes
0answers
152 views

Georeferencing multiple images as GeoTIFF (same size and extents) in QGIS

I have 50 images and I want to georeference them all on to the exactly same place. They have all the exactly same size and extends. I've begun to load the same georeferencing points for every single ...
2
votes
1answer
89 views

GDALwarp HDF5 Image With Unknown Projection

I have a NetCDF file that contains a series of HDF5 bands. I am looking to project one of these bands contained within this file. I've attempted to use the following command to achieve this: gdalwarp ...
2
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0answers
169 views

automatically georeference QgsGeometry.fromPoint features on creation

Is there a way to automatically georeference fromPoint features upon creation? I use this layer URI: self.pinLayer = QgsVectorLayer( "Point?crs=epsg:3857&field=id:integer&...
2
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0answers
39 views

Extremely Laggy whenever I start georeferencing TIFF Image on ArcMap 10.6

I have been running my ArcMap on my new work computer for a month or so, it went fine. But since last week, ArcMap becomes slower whenever I load the map/georeferencing, these days when I georeference ...
2
votes
0answers
104 views

How to georeference multispectral raster without loss of data

I am trying to align two rasters made of data captured during same flight, but with separate cameras (drone - onboard, and Micasense RedEdge) and two separate gps devices (drone and another one ...
2
votes
0answers
254 views

Georeferencing Cadastral map in DWG using AutoCAD Map 3D?

I want to georeference a cadastral map in dwg format. I have the lat-long of 3+ points on the map but do not have the scale. I tried "Set Location" in Autocad Map 3D but it references using the lat/...
2
votes
1answer
998 views

Image Shifting After Georeferencing in ArcGIS Pro?

I am georeferencing images in ArcGIS Pro using control points. After I export the control points and save the image, it shifts downward and displays in a different location. Now when I open the image, ...
2
votes
0answers
119 views

create neighborhood list in R with large dataset

I want to create a weight matrix based on distance. My code for the moment looks as follows and functions for a smaller sample of the data. However, with the large dataset (569424 individuals in 24077 ...
2
votes
0answers
137 views

Google earth image appears flat and in the wrong location when georeferencing

I've been trying to add an image of my site which I got from Google Earth Pro. But I can't seem to georeference it properly using the georeferencing tool in Predictor noise modelling software. I've ...
2
votes
1answer
239 views

Georeferencing X Y (AND Z) with GCPs in QGIS

I have GCPs recorded to centimeter precision in lat, long, and elevation. I want to georeference my UAV-photogrammetry-generated GeoTIFF and DEM with these GCPs (since the GPS on my UAV is only ...
2
votes
0answers
420 views

Georeferencing CIA's Lambert Conformal Conic projection in QGIS?

I'm trying to load into the QGIS an image generated from the NA CIA Fact Book PDF which uses Lambert Conformal Conic Projection, standard parallels 25°N and 77°N. I'd like to work with the exact ...
2
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0answers
220 views

formula to calculate geo-referencing paramerters

I am trying to overlap the vector and raster data. I have two control points on both raster and vector data. Now I want to generate world file parameters for overlapping two data. I am using ...
2
votes
0answers
230 views

Seeking example .PRJ file using WKT syntax for Concat_MT?

I've been digging into the WKT format definition found here:WKT Format with the aim of defining a PRJ with two chained affine transforms to go from a known projected system to a local grid. I've been ...
2
votes
0answers
243 views

Unable to activate GDAL Georeferencer in QGIS

I have installed QGIS 2.14 on my MacBook Air, but am unable to activate the "Georeferencer GDAL" plugin. When I open the "Manage and Install Plugins" dialog, the Georeferencer GDAL plugin is listed ...
2
votes
0answers
274 views

QGIS: georeferencer, resolution-dependent behaviour, why resolution is negative

I am trying to georeference sovet military maps from maps.vlasenko.net. I have manage with one, but to my surprise I am failing badly with georeferencing a second file (M33-3 map). Let me go piece ...
2
votes
0answers
3k views

Google Earth Extension to export georeferenced image?

Has somebody coded an extension to Google Earth that will export a georeferenced image from google earth? Google Earth and Google Earth Pro only export the image *.jpg *.png etc and don't export the ...
2
votes
0answers
224 views

failed gdal script from QGIS Georeferencer using Thin Plate Spline (TPS)

I'm trying to georeference a photo using QGIS Georeferencer plugin (this is an oblique photograph. I know I should be using a proper georectification routine, but my current work now is just to simply ...
2
votes
0answers
355 views

How to Georeference in QGIS 2.12.1 Lyon

I used to be able to Georeference in QGIS but now I can't. These are the steps I go through. At the end of it nothing happens. No layer is added to my Layers Panel and no document is created in the ...
2
votes
0answers
258 views

Problem in loading map to Georeferencer in QGIS

I'm trying to load a map to the Georeferencer in QGIS using the approach from http://www.qgistutorials.com/en/docs/georeferencing_basics.html. I try to get the locality coordinates(lat/lon) of the '...
2
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0answers
1k views

Changing the background color of the Georeferencer in QGIS

Is there a way to change the background color of the Georeferencer in QGIS? What I mean is, can I somewhere change the color that does not belong to the image that is about to be georeferenced? Let’s ...
2
votes
0answers
366 views

Georeferencing declassified CORONA images of coastlines?

I'm trying to georeference declassified CORONA images of coastlines in order to asses coastline changes and human impact. In most case, georeferencing is easy, but since images of coastlines can only ...
2
votes
0answers
303 views

Preserve GCP's after gdalwarp

I'm trying to figure out how I can preserve my GCP's after a gdalwarp. I need the georeferenced GCP's data, so I can calculate the Root Mean Squared Error. Is there a way to preserve this data, and ...
2
votes
0answers
289 views

Install Georeferencer Plug-in QGis 1.7.0 OS X

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 checked "...
2
votes
0answers
336 views

How to georeference an areal photograph given known coordinates of the four corners and center of the image

First, let me say that I am new to this field. I have an existing image/video viewing application. My primary goal is to implement an efficient method to determine the latitude and longitude of any ...
2
votes
0answers
180 views

Grid perspective tool

I'm not a cartographer, but want to use a map for my project from world atlas book. I scanned the map, but no matter how carefully it is scanned, it's perspective is slightly distorted and it's ...
2
votes
2answers
429 views

Calculate accuracy of georeferencing

I'm working on georeferencing old maps for archaeological purpose. Of course, colonial maps all do have some degree of transformation needed. But sometimes a specific region is well mapped while the ...
2
votes
1answer
180 views

Max length for WKT name

Is there max length limitation on WKT name? see the bold text below: GEOGCS["GCS_Wake_Eniwetok_1960", DATUM["Wake_Eniwetok_1960", SPHEROID["Hough_1960",6378270,297]], PRIMEM["...
1
vote
0answers
35 views

Creating custom PROJ projection from control points

I have a JPG raster, and I used QGis to georeference it with "control points", which are pixel coordinates linked to map coordinates, in EPSG:4326 (lon, lat). Here is an example of the control points ...
1
vote
0answers
16 views

How to geo-reference a level 1A satellite image to level 1B?

I have satellite images which are not geo-referenced. The metadata of images is below. name: 1235078921.68220448_sc00106_c1_PAN datetime: 2019-02-24T21:28:23Z gsd: 1.03381 bit_dpth: 16 Satellite ...
1
vote
1answer
47 views

Georeferencing NASA, NOAA, and Natural Earth Projections in QGIS

I'm new to QGIS. I'm currently using the newest version-- 3.10. I downloaded a raster projection (a tiff file) and vector data (SHP files of coastlines and rivers) from Natural Earth I to import as ...