Hello everybody, I am also a newbie and seem to have a similar problem, but cannot get it solved. I am trying to reproject the following file: http://www.altmuehlnet.de/~hilger/Test_Smooth_0208_4258.tif I am using the following line: gdalwarp -et 0 -r bilinear -s_srs EPSG:4258 -t_srs EPSG:25832 Test_Smooth_0208_4258.tif Test_Smooth_0208_4258_25832.tif The input image is of data type "byte" and has values from 0 to 255. The Output image has values all 0, so this seems to be some other problem?
Thank you, any help is very much appreciated, Ludwig >>>gdalinfo -mm shows your input data file has all it's values in the range 518 to 2396. When converted to a 16bit tif, these all fall in a range that appears black on your screen. You need to rescale the data to fill the 16bit range. This is easily done with gdal_translate, which is probably what you want to use anyway, since you're not changing the projection, only the data format. gdal_translate -ot Int16 -scale 518 2396 0 32767 n29.dt1 mosaic.tif <<< -- View this message in context: http://osgeo-org.1560.x6.nabble.com/gdalwarp-produces-all-black-output-tp5019465p5071423.html Sent from the GDAL - Dev mailing list archive at Nabble.com. _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
