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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2answers
298 views

Creating outline shapefile georeferencing existing map/pictures [on hold]

I need to create shapefiles (that need to be adapted and transfered for other programs) with the district outline of a couple of Caribbean countries. Is georeferencing (using the Georeferencing ...
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1answer
56 views

QGIS geo referencing - black background transparency

I georeferenced a raster file and ended up with a black background (exact 000000) The raster file contains a lot of black, so setting black to be a transparent color is not a good solution since I ...
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1answer
43 views

Georeferencing CAD drawing and setting ground control points in GRASS?

I'm fairly new to QGIS and Grass GIS, and learning the interface. I have a CAD drawing that has no coordinate system assigned and needs to be georeferenced to NAD83 HARN Northern Colorado (feet). I'...
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1answer
248 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 ...
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1answer
31 views

Conversion of MLS/AURA RELATIVE HUMIDITY PRODUCT to correctly referenced GeoTIFF

I have downloaded the following product https://cmr.earthdata.nasa.gov/search/concepts/C1251101764-GES_DISC.html and it gives me a .he5file. Can anyone help me in correctly geo-referencing the file ...
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4answers
5k views

QGIS' georeferencer layer doesn't appear?

I use QGIS 1.8.0 for Linux, and I want to draw roads manually on the map. So according some tutorials, I use Raster>Geoferencer>Geoferencer to import a bitmap image including roads, and set ...
2
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1answer
42 views

Problematic file size after georeferencing in QGIS

I have to georeference a few hundred JPEG maps in QGIS. Each of these maps has an average size of 20 MB. After georeferencing, these maps must be loaded into ArcGIS on another computer, of course ...
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1answer
69 views

Georeferencing DWG using QGIS?

I am using QGIS 3.4.11 on Windows 10 x64. I have three large DWG files that are the output of a survey (each roughly 5MB). No problem to import them into QGIS as geopackages using the built in DXF/...
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0answers
71 views

How to georeference this image?

I need to georeference this .tiff. I see coordinate values ranging South-North 550000-554000 and West-East 10000-12000. Do I need to know the coordinate system to georeference the image ?
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2answers
79 views

Image disappearing when georeferencing google earth image?

I have downloaded an image from google earth with four control points ready to geo reference. I enter the first two points and everything is fine. Then I enter a third point, the image disappears and ...
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1answer
373 views

Creating a GCP (*.points) file from a Shapefile (points layer)?

I have created a points layer which represent Ground Control Points (GCP) for georeferencing scanned topographic maps via 'Add Layer > Add Delimited Text Layer', where I saved coordinates in a .csv ...
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1answer
76 views

Recurring system crash while using GDAL Georeferencer in QGIS 2.18

I am currently working on aerial images I have to reference in QGIS. I usually use the GDAL tool for that, but during the last days, QGIS crashes all few minutes whenever I use it. I ran into this ...
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1answer
119 views

ArcScene - Spatial reference

I am having trouble merging different layers in ArcScene. As there is no such thing as the "Georeferencing" used in ArcMap, I am not able to view two different Layers in one document. Is there ...
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1answer
50 views

Raster TIFF file does not project onto QGIS basemap correctly

Forgive me if this is a simple fix, I am new to QGIS 3.8. I have a .tif file that when opened into QGIS is projected on the (0,0) lat/long coordinate of the base map and is very small. I have ...
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6answers
4k views

Georeferencer plugin will not load in QGIS

I have downloaded and installed QGIS. I would like to georeference an image using the core georeference plugin. When loading it no toolbar appears and the 'update', 'reinstall' etc boxes in plugin ...
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1answer
88 views

Identifying coordinate system of Wetterzentrale maps?

I'm trying to georeference two maps from wetterzentrale in ArcGIS Desktop. In what coordinate system are those maps created?
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1answer
213 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
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1answer
852 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, ...
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2answers
325 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 ...
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0answers
22 views

Recognized, calibrated test points for a rangefinding function?

I'm trying to find out if there are scientifically accepted calibration points to measure the effectiveness of a geodetic distance finding function. So far I've been using the listed latitude / ...
2
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1answer
61 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 ...
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1answer
28 views

QGIS georeferencer distorting colours?

I try to use the georeferencer to geofreference certain building plans, but the referencer really distorts colours: As you can see in the picture. it hollows out what used to be solid red, black and ...
2
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1answer
42 views

QGIS georeferencing plugin workaround

I need to georeference an image. I had QGIS 3.2 installed. When I clicked on "Plugins -> Manage and Install Plugins" QGIS froze. So, I tried installing 3.8 and the same things happened. Tried 3.4, ...
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1answer
106 views

Importing animated GIFs in QGIS

Is it possible to import a animated GIF into QGIS? And is it also possible to georeference it, to have it on the right place?
2
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1answer
268 views

Opening .tab files associated with .lbl files in ENVI

I need to open .tab files containing location information of chandrayaan-1 HYSI dataset. It contains four ASCII columns: longitude, latitude, pixel and scanline data. I need to open the .tab file as ...
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2answers
552 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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1answer
150 views

Highlighting an area of a map

I would like to have a borderline around a subset South-South(SS) part of the map (Map 1) (More like highlighting the subset part). I tried to clip a vector of the subset (map 2) to the entire map, ...
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2answers
875 views

Georeferencing in R Based on the Four Corners

I have a raster image (photograph) that was taken from a helicopter. Along with that raster image, the system also tells me the positions of the four corners of the image in a different file. I have ...
7
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1answer
326 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,...
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2answers
53 views

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 ...
2
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1answer
63 views

Georeferencing a numpy tensor (spatio-temporal data)

I have a CSV file in which each row represents a record of an event with the following columns: latitude, longitude, time I want to build a numpy tensor with n x m x 8760 (hours in a year) ...
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0answers
45 views

Getting complex CAD drawing to right location in QGIS?

I have a complex CAD drawing from a city with many layers..hatches, points, poliylines..and I need it to georeference because when I import the DWG file into QGIS it turns out to be at the wrong place....
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1answer
96 views

.Tif to .GeoTiff Scaling issue using GDAL

I was trying to georeference a .tif file generated from a matplotlib output using GDAL's python bindings and it seems to be off-scale. My objective was to create a geotiff file from the output of a ...
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1answer
50 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 ...
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1answer
56 views

Loading and georeferencing historic maps using QGIS?

I have recently started working with QGIS. I am unsure of how to go about inserting historical maps which have no referencing data. I think it might be possible to insert them, then move and scale ...
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0answers
11 views

Image error polynominal transfomation

I'm georeferencing a Landsat 8 oli no QGIS trip. I include the control points and the system calculates the residuals for each point. At the end it indicates the polynominal mean error of the ...
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0answers
22 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 ...
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1answer
87 views

Red lines appearing in QGIS Georeferencing?

I am georeferencing some old aerial pictures in QGIS. The area encompass mountains, hills and a flat area. For some pictures the error is quite low and I am satisfied with the overlapping (error is ...
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1answer
94 views

Georeferencing VNP46A1*.h5 Data

I'm trying to analyze nighttime lights of a specific area with VNP46A1 data. I got my data from this website, but I could find only few tutorial about this product, and one of them was ...
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2answers
49 views

CRS for old Falklands maps in QGIS?

Does anybody know which CRS should be selected when georeferencing a Falklands map made in 1961? The map itself says only: Grid: UTM Zone 21 Projection: Transverse Mercator Spheroid: International ...
2
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1answer
43 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: ...
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0answers
25 views

Importing an image to QGIS with no coordinates, only a scale of the drawing

Is it possible to import a drawining into QGIS without having any coordinates or CRS. The scale that I have is 1:1250.
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1answer
60 views

City Engine: Align Terrain to Shapes - Purpose?

What is the purpose of aligning the terrain to shapes, if I have already aligned my shapes to the terrain? In my understanding, the terrain is a reference surface, and therefore I wouldn't want to ...
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2answers
40 views

Georeferencing screen shot of Bing imagery in ArcMap?

I've been using the world imagery layer in ArcMap for hand-digitizing possible restoration sites. This has generally been adequate except for a few instances in which the imagery is a bit old and ...
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 ...
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1answer
238 views

Georeferencing metadata in GeoTIFF files

I am generating maps as TIFFs using the raster package (writeRaster) in R to generate small tiles, then as a final step, combining the tiles via the GDAL script gdal_merge.py. I thought the resulting ...
5
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2answers
2k views

Seeking QGIS affine equation?

I am at the mercy of a govt authority who have provided utility information in a cad format with a 0,0 origin and a nonsense grid. About a dozen files, the grid and origin are entirely arbitrary. To ...
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1answer
73 views

Get Row/Column of Latitude/Longitude

I downloaded Sentinel-2 Imagery from AWS & I'm using rasterio to read/manipulate the data. I want to find the row/column coordinate of a latitude/longitude point that I initially used to search ...
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0answers
123 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 ...
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0answers
35 views

Error georefencing an aerial image with QGIS (for relatively small area)

I have an aerial image (.jpg format) of a relatively small site and have been trying to georeference it and generate a corresponding .tif file. I followed several online tutorials, but I keep getting ...