[Talk-GB] A new Flickr group for old out-of-copyright OS Maps
grand.edgemaster at gmail.com
Sun Sep 13 22:55:29 BST 2009
2009/9/13 Peter Miller <peter.miller at 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.
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