Thanks for all the input, Manuel - I've gone ahead with the ImageMagick system and it works pretty well. That said, a projective warp would be great as a native GDAL feature, so thanks for the offer.
If anyone else has interest, please pipe up! If it's just me then I guess there's not too much demand. Jeff On 7/30/10, Manuel Massing <m.mass...@warped-space.de> wrote: > Hi Jeffrey, > >> I've thought about implementing a projective transform in the qgis >> georeferencer, so if you're interested I'll let you know when I get around >> to it. > > If this interest you, I have just commited an initial implementation of > projective warping (see https://trac.osgeo.org/qgis/changeset/13987) > to the qgis georeferencer, which is based on the gdalwarper. > > In principle, it should be relatively easy to integrate this transform into > a > custom version of gdalwarp. > > Maybe there's even interest to have such a transform in GDAL proper? > I would be willing to contribute the code to GDAL, although the model > fitting step uses a singular value decomposition, so this would require > some dependency on a linear algebra package (I wouldn't consider it wise to > reimplement numerical algorithms from scratch, with their numerous caveats). > > cheers, > > Manuel > > _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
