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If you suspect the vector streams are incorrect, I'd start by trying a different data source but often this is approached the other way by burning the streams into the DEM. Convert Vector Streams to Raster with a value of 1 Use the Con tool or the "Minus" tool (under Math) in Spatial Analyst to subtract values in the DEM. This will create a DEM with ...


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JPG and PNG are not spatially aware formats, meaning their location/georeferencing information is not stored within the file itself. That requires an accompanying World file that stores such information so the image can be georeferenced. As GISGe suggested, the GeoTIFF format is available and does include georeferencing information, so it would be suggested ...


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I' think it is not a matter of R ..only. Here a small sketch howto realize the referencing stuff under Linux. You can use GDAL to create a georeferenced axis parallel image from your heli position data, assuming, that your image has the dimension width and height and the bounding box is given by may be GPS-coodinates stored in UTM-33 shown in this table: ...


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If those "strange" coordinates do not fit to Gauss-Krueger coordinate systems, they might be similar to the "preußisches Koordinatensystem". You will find some links to that in my answer to Conversion of coordinates of "Bochum coordinate system" You have to put up a custom CRS on the point "Trockenberg" in Cassini-Soldner projection, which was ...


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I had the same problem "Error – Failed to save raster dataset". For me, turns out the issue was that I was saving onto a drive whose free space was less than the amount of space required to store the new georeferenced image. Changing the directory the TIF was saved in resolved my problem.


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In QGIS, the projection string for EPSG:3399 is: +proj=tmerc +lat_0=0 +lon_0=15 +k=1 +x_0=5500000 +y_0=0 +ellps=bessel +units=m +no_defs This projection string has no datum shift +towgs84, which I would expect for every transformation from the German DHDN/bessel to the WGS ellipsoid. See this page in German for more information on official transformation ...


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I found that I was inputting the dimensions and rotation value incorrectly and therefore not grabbing the correct coordinates for the upper left corner of the image. Also, though I don't understand yet why, the sign on the rotation value needs to be reversed for the world file. Here is the updated code: import arcpy, os w = float(raw_input('provide ...


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There is a free web-based georeferencing tool designed for old inaccurate maps here: http://warp.worldmap.harvard.edu/


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Go to Settings, select Transformation Settings. Change the name of the output raster to your new filename. Click OK. Now run your transformation.


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I learned that ArcGIS has a georeferencing feature called autoregistration that performs this task with some caveats. They say it does not work well in my use case of old scanned maps. QGIS has no similar feature, so I wrote a script in Python using the OpenCV library that looks for general image similarity, maps the correspondence, and then transfers ...



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