On Sun, 12 Oct 2008 08:48:36 +0000 (UTC), Jukka Rahkonen wrote: >> I've some aerial photos that I need to find how to georeference, 4MB >> jpegs and 17 overlapping tiles, is there a program you can >> recommend? > > >Could you tolerate a non-integrated system and measure pixel coordinates and >corresponding true world coordinates with a separate program and feed in these >ground control points from command line?
If you mean can I attribute a single pixel in the image with a coordinate on the ground then yes. I'm not a programmer or a cartographer just a pc user but can use the command line. >In this case you could use >gdal-programs (gdal_translate and gdalwarp) and get a single mosaiced >georeferenced image. Download FWTools package, it includes both gdal tools and >OpenEV Viewer that can be used for defining ground control points. OK I'll have a look, thanks. I've previously used a free windows mapping program but it uses a metre grid and even when projected with british OS datum and co ordinates its 70m out (even the control points get displaced) so I have some sort of problem with the datum and projection. I also am looking at the GRASS gis in Linux but not learning very fast. Andrew Heggie _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
