[gdal-dev] Thin Plate Spline

Jan Hartmann j.l.h.hartmann at uva.nl
Fri Apr 30 18:17:06 EDT 2010


I'm rubber-sheeting old, deformed maps using the thin plate spline 
option of gdalwarp (-tps). My impression was that the control points 
would be transformed to exactly their georeferenced locations, but in 
the georeferenced image the control poimts don't quite align with the 
gcp-coordinates I specified. I'm only using five points per map, so 
could this be the problem? If so, how many points do I need to get the 
control points on their exact location? Or are there other ways to 
achieve this?


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