Aligning geographic data to a known coordinate system so it can be viewed, queried, and analyzed with other geographic data.

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6
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0answers
338 views

Why is QGIS georeferencer much faster on Windows than Mac?

I just went from temporarily using a Windows 7 machine with 4GB of RAM and no video card as far as I know. I'm now using a mac with 16GB of ram, etc. Its a much more powerful machine. However, QGis's ...
5
votes
0answers
147 views

How do I open MOD17A3 in ENVI such that 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,...
4
votes
0answers
82 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, ...
4
votes
0answers
47 views

QGIS Georeferencer is stretching image

I'm trying to Georeference an image. I've followed the guide from QGIS, but for some reason, it's stretching, and offsetting the image from the points. For example, my input of the southwest corner ...
4
votes
0answers
3k 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 ...
3
votes
0answers
47 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
votes
0answers
404 views

QGIS : transformation types in geo-referencing

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...)....
3
votes
0answers
913 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
0answers
257 views

Georeferencing/rectifying multiple images of different shapes and sizes at once using ArcGIS for Desktop?

A couple of weeks ago I georeferenced a set of 7 scanned maps (.tiffs). Although the scans all have different shapes and sizes, the outline of all the maps on there is the same, and after having ...
3
votes
0answers
1k views

Best practice for aerial photo stitching and georeferencing

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
votes
0answers
234 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
0answers
29 views

Automated georeferencing based on topological point pattern matching in ArcGIS

I have a lot of building plans (PDF/PNG format) which I would like to automatically georeference. I have the base map "OS Mastermap Mono", which is use for a lot of the building plans. If I use ...
2
votes
0answers
27 views

Tiff will not update georeferencing

I am having a problem georeferencing. I have a photograph (.tif) that will not save georeferencing. When the .tif raster appears on the table of contents, there is a ":0" added to the end of the ...
2
votes
0answers
31 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
54 views

My georeferencer plugin window doesn't open

Ever since I downloaded QGIS 2.2 I can't get the georeferencer plugin to open. I've removed all older versions of QGIS & reinstalled & have just installed 2.8.6 but am still having the same ...
2
votes
0answers
137 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
62 views

QGIS tiff image loaded but not visible

In QGIS I used the Georeferencer on a jpg image I had prepared in Gimp. But when I load the resulting tiff image into my QGIS project it is invisible, even though an image viewing program can show it ...
2
votes
0answers
168 views

Multipatch georeferencing

I am currently using ArcGIS Pro to create a 3D campus model and I have floor plans extruded by each individual floor to represent buildings. Another group is working on the modeling side of things and ...
2
votes
0answers
454 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
19 views

Georeference with csc file does not work

I'm trying to map data that I uploaded with an csv file. Originally this data set only included the counrty code, e.g. BD, for Bangladesh. I tried to georeference it by admin region and selected the ...
2
votes
0answers
146 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
117 views

How to 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
164 views

Using ST_Affine() and trans_param() functions on vector layer

After reading this post How to georeference a vector layer with control points? I decided to give it a try to move/rotation/scale a polygon using Postgis. I have two polygons, polygon_from and ...
2
votes
0answers
163 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
248 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
161 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
0answers
261 views

GIS “hack”: ways arbitarily assigning coordinate in order to match the raster and vector layer in QGIS

Before I raise my question, I have to admit that I am a total newer on GIS, I don't have much background on GIS. But suddenly I need to take over the GIS job from a GIS specialist who just left the ...
1
vote
0answers
37 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 ...
1
vote
0answers
49 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 ...
1
vote
0answers
36 views

Control points in IAdjustXForm for georeferencing of raster (ArcObjects)

I am trying to create a georeferencing tool using ArcObjects in VB.Net. Though only a little text is available on this topic in forums as well as from ESRI; I found an esri article that states the use ...
1
vote
0answers
42 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 ...
1
vote
0answers
70 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 ...
1
vote
0answers
34 views

Issue on project CRS loading a georeferenced image

I have a georeferenced image in EPSG 26714. When I load it in Qgis 2.14 the project CRS is set to 4326. I asked for the layer properties and the CRS registered is 26714. When I open the same file in ...
1
vote
0answers
63 views

Georeference dwg file in arcmap

I have a dwg file and I want to georeference it with ArcMap. I have 4 coordinates given (in Degrees and Lambert), so I should be able to reference it. I used the georeferencing tool in ArcMap, but I ...
1
vote
0answers
37 views

Georeferencing an NDVI (JPEG) image in QGIS

I am struggling to georeference a NDVI image. The image is a JPEG, how would I go about this? I am using QGIS
1
vote
0answers
57 views

ArcGIS stops responding during Georeferencing Save?

Im using ArcGIS 10.2. I had an ealier problem that I think I found an answer to here while georeferencing an aerial photo. My current issue is that whenever I go to rectify the georeference points, ...
1
vote
0answers
63 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 '...
1
vote
0answers
73 views

QGIS as a pre and post processor for modflow

I want to find out how QGIS can be used as a pre-processor for modflow, i.e delineating the model boundary and boundary conditions etc. exporting to modflow for analysis, viewing and/or mapping the ...
1
vote
0answers
73 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 ...
1
vote
0answers
103 views

WGS84 Lon/Lat from pixel x/y in a georeference image

I'm quite a newbie in GIS. I need to compute (without using any existing lib/tool) the longitude & latitude (WGS84) corresponding to the a pixel, inside a (georeferenced) map image. I know: ...
1
vote
0answers
36 views

QGIS Georeferencer - Coordinates Rounding Too Small

I have an image I'm trying to georeference on my map, but am having an issue with the coordinates which are sent to the map from the georeferencer. As you can see below in the image, the yellow boxes ...
1
vote
0answers
73 views

Importing files from Panoramio to QGIS?

I need to visualize in QGIS the density of photographs taken in seven municipalities of the central Italy: Perugia, Magione, Passignano, Umbertide, Deruta, Corciano, Torgiano. I'm wondering if there ...
1
vote
0answers
43 views

QGIS Georeferencer tool not keeping inserted coordinate values

I'm currently giving a basic training course on QGIS and, on the last class, one of the students stumbled upon a problem I wasn't able to solve - nor can I find a reason for it. We are using QGIS 2.10....
1
vote
0answers
66 views

Is it possible to set points without coordinates onto a map?

I have the following Situation: csv-file with 1000 lines of measurements. These measurements were done indoor in a building without GPS. The measurement-system allows to set "markers" at any time. ...
1
vote
0answers
72 views

How to align hundreds of rasters quickly

I'm hoping to accurately align hundreds of aerial images that are slightly off-kilter. The images cover the same area on different dates (several acres). They contain identifiable features around ...
1
vote
0answers
80 views

Is it possible to georeference a .hdf file in ArcGIS

Using a Noggin 250 GPR and Smart Cart. I generated data for a grid. I did not have a gps unit on the smart cart. I do have gps x'y for the corners of each grid. After post processing the data in ...
1
vote
0answers
153 views

How to rectify a georeferenced Google Earth image and corresponding layer

I am still a newbie to georeferencing and ArcGIS. I imported an image with place markers from Google Earth. Then I opened up the image in ArcGIS Desktop 10.3.1. I then georeferenced the control ...
1
vote
0answers
106 views

Georeferencing reversal of image

I georeferenced a map and it posted to canvas as a mirror image of the original map. I set my project CRS before starting and also made sure to set the same SRS for the Geotiff being created and saved....
1
vote
0answers
32 views

QGIS Georeferencer adds padding to image after save

I am attempting to georeference an aerial image using satellite imagery. I'm successful in getting an output, however I notice there is an issue where QGIS's georeferencer is adding padding to all the ...
1
vote
0answers
30 views

How to best import a US Map Schematic?

I would like to use the following wiki US Map schematic as a background to my map work. (http://en.wikipedia.org/wiki/File:Blank_US_Map.svg) It is a .svg file, and GeoReferencer is unable to import it....