2009/9/13 Peter Miller <peter.mil...@itoworld.com>: > > On 13 Sep 2009, at 22:41, Thomas Wood wrote: > >> These maps are already rectified of course, it's usually good to >> convert the OS coordinates to Lat/Lons and then set the grid corners >> as reference points. > > But my photographs of the maps will have introduced some tilt and other > distortions, so it does need some control points. Possibly you are saying > that I can calculate the control points from the OS grid references for the > corners. That may indeed be true.
Yes, it is a shame that they're too large to be scanned at once, it'd make for a much better image. You seem to have achieved fairly reasonable results with a camera though. -- Regards, Thomas Wood (Edgemaster) _______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb