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On 4/30/2015 1:58 PM, Bischof, Richard
wrote:
Hello, I have a number of scanned aerial images in .ecw-format, which have to be georeferenced, using eww-file. How can I calculate the eww-file using multiple passpoints and transformation types like linear or polynomial? AFAIK, you cannot use a world file for any high order transforms, only an affine transform. On the contrary, that is exactly what gdalwarp does. With gdal_translate you embed your ground control points into the raster, then use gdalwarp to do the transform. The '-r' option allows to choose the resampling method, or '-order' to choose the polynomial order for the transform.Is there any open source tool,I can use? gdal_warp doesn't seems to be used to that. Thanks, Richard _______________________________________________ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss This mail was received via Mail-SeCure System. |
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