I am trying to georeference a raster (jpg). I can easily create a geotiff, but when trying to use the QGIS georeferencer to create a wld file instead, something goes wrong. I have the target CRS set, and using liniar, the wld file is created. But when I load into QGIS an error pops up and says the wld file contains no CRS, and thus the raster loads into the standard CRS (which is not the CRS I had to georeference the raster to). Anybody knows which knob I need to switch on or off? I can find plenty of pages explaining how to georef to geotiff, but this one I cannot find.

EDIT: I was following the guide here: http://www.qgistutorials.com/en/docs/georeferencing_basics.html

first for the geotif, and then I tried to modify settings to save as a world file. I set to liniar, set target crs to 4044 as pr the instruction on the page. But as was said, this is not saved to worldfile. and then I checked create world file. all filenames for .wld, .point and .jpg are identical.

using QGIS 2.14

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    World files never contain any information about the projection. Sometimes projection is saved into a separate file (.prj or .xml, for example) but I do not how QGIS behaves. But if you add tiff+tfw into QGIS project the CRS selector window should open and you can give the correct CRS there. – user30184 Mar 23 '16 at 9:49
  • Please edit the question to contain an example of the exact file names you are populating for the image, the world file, and the coordinate reference information. – Vince Mar 23 '16 at 10:37
  • The conventional form for a world file of a .jpg is ".jpw" – Vince Mar 23 '16 at 14:10

In the menu, choose Settings -> Options -> CRS. Under CRS for new layers, you can select Prompt for CRS.

That way you always will be asked for the CRS, and not assigned a default.

If you have a shapefile in the same CRS, you can duplicate the .prj file to the name of the raster. Then QGIS can read that to load the raster without prompting.

  • I don't know if this really is the issue. but I ran through the process again, just this time I did what you suggested and got the prompt. The prompt also came when opening the raster in the georeference tool. this time the world file worked as expected. Thanks... – Michael Riis Trampedach Mar 23 '16 at 12:26

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