I want to improve the accuracy on an existing scanned image to match data that has been updated so that I can add it to our GIS. I import the legacy map as a TIFF file, rubbersheet it to lines that I created using AutoCAD Map which has a projection assigned and then export if as a GeoTIFF. This should be pretty straightforward, but I have a couple of problems.
How do I reconcile this problem?
Is there a way to improve the polynomial rubbersheeting to give me what I want?
What's up with the image size created by the triangular rubbersheeting?
J Edward Leavitt