GEOG5223 Lesson 3

GeoRegistering Raster Images for the Purpose of Data Creation

John Taber

   Figure 1
  Figure 1:  This shows the original, unregistered image of the study area in Acadia National Park.  It is simply a scanned paper map - note the creases.

         A point theme was created to show the proper coordinates for the four reference points.  In the ImageWarp extension, the four points on the image were referenced to the four points on the point theme.  ImageWarp created a new, recfied raster image based on this information.


Figure 2: This is the rectified image, with polygons for four lakes added.
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