Luigi Calori wrote: > > Now the questions: > > 1) are i.rectify and i.point able to handle homographies? >
No, they don't. Luigi Calori wrote: > > I' ve found a nice reference paper on > http://gisws.media.osaka-cu.ac.jp/grass04/viewpaper.php?id=37 > but I did not fund anything in grass62 neither browsing thru CVS. > Are these modules needed to handle homographies transforms ? > Yes. They have been integrated into i.points.auto: http://grass.gdf-hannover.de/wiki/Image_processing -> download link Note that the code needs an update to GRASS 6 (most is based on 2 master theses at ITC-irst). Luigi Calori wrote: > > 2) there are also other modules like photo.camera photo.2image > photo.2target photo.rectify I did not used them because they reqired > camera parameters I do not have. > Are they able to handle homographies? > No, they handle central projection (as needed for ortho-rectification of aerial images). Best Markus -- View this message in context: http://www.nabble.com/help-on-imge-registration-tf4646974.html#a13283363 Sent from the Grass - Users mailing list archive at Nabble.com. _______________________________________________ grassuser mailing list grassuser@grass.itc.it http://grass.itc.it/mailman/listinfo/grassuser