Hi Jukka, Thanks for your reply! I didn't think about using VRT. Using VRT (-b 1 -b 2 -b 3) as an input to warp solved the problem.
Idan On Sat, 20 Feb 2021 at 23:52, jratike80 <jukka.rahko...@maanmittauslaitos.fi> wrote: > Hi, > > It is very cheap to use gdal_translate and VRT as intermediate format. As > far as I know it is not possible to drop alpha with gdalwarp even it is > possible to add alpha -dstalpha. > > -Jukka Rahkonen- > > > > Idan Miara wrote > > Hi All, > > > > Is it possible to use gdal_warp for warping the RGB bands of an ARGB > > raster > > as gtiff with jpeg compression (i.e. to drop the Alpha channel and > > transform CRS). ? > > > > gdal_transalte has translate_options["bandList"] = [1, 2, 3] for that, > but > > I can't find the equivalent for warp. > > > > I could do it in two steps - save as a lossless gtiff and then use > > gdal_transalte to make a jpeg-gtiff. Or use gdal_trasnlate to make a 3 > > band > > lossless gtiff and then wrap it. > > > > Can I do it in one step without an intermediate file? > > > > Regards, > > Idan. > > > > _______________________________________________ > > gdal-dev mailing list > > > gdal-dev@.osgeo > > > https://lists.osgeo.org/mailman/listinfo/gdal-dev > > > > > > -- > Sent from: http://osgeo-org.1560.x6.nabble.com/GDAL-Dev-f3742093.html > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/gdal-dev >
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