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I want to georeference a scanned map of Sudan (Africa) as .jpg file format,coordinate points are marked on scanned map in 4 degree intervals. I am not familiar to georeferencing in ArcMap. So looking for a detail guide line for georeferencing in ArcMap (using 4 control points) and also looking for a guide line to edit the spatial reference in base map with the suitable PCS information for the AOI. In my previous post in this forum I have mentioned the problem that I am facing at the time of georeferencing. Guide line will help me out.

Thanks in advance,


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Googling "georeference a scanned map ArcGIS 10" produces loads of good answers. –  whuber May 20 '11 at 13:16
if the coordinates and pixel size of the image are known a jpw or jpgw text file can be created without manually georeferencing image in ArcMap. help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//… –  Mapperz May 20 '11 at 14:02
Doing this programmatically would be difficult - Esri doesn't expose the arcobjects for ESRI.ArcGIS.GeoReferenceUI. –  Kirk Kuykendall May 20 '11 at 14:02
but you can do it outside the 'esri gis' loop with excel and simple dos .bat files - found it much more efficient for tens of thousands of .pngs for a web/desktop app. –  Mapperz May 20 '11 at 16:02

3 Answers 3

Read this PDF. All the steps are clearly illustrated - Georeferencing of Scanned Maps & Spatial Adjustment of Vector Data - http://www.library.yale.edu/MapColl/files/docs/Georeferencing%20of%20Scanned%20Maps.pdf

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See the ESRI link for the same...

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Take a look at this Esri video: Georeferencing Rasters in ArcGIS.

Here also short guide (2 pages): Georeferencing Images in ArcMap.

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