[GRASS-user] i.points gps

[charles]

Hello all,

I am in the process of geocoding a map that has been scan.  I have  
read where it is possible to use global positioning system(gps) data  
as reference points or ground control points to accomplish an image  
rectification.  Is anyone familiar with the procedure or have a basic  
idea how to use gps data to perform image rectification?  Thanks for  
any information on this subject!

Charles