Matt,
copying over band description (and other band metadata) in the -separate
case would make sense. Please file an enhancement ticket about that
Even
Le 27/03/2021 à 00:40, [email protected] a écrit :
Hi Folks,
`gdal_translate -b 1 infile.tif outfile.vrt` will copy the band 1
description to the output file.
`gdalbuild.vrt` on the other hand leaves the band descriptions behind.
Is there a way to have vrt carry the description across also?
The project behind the question is to keep only the 4 bands of
interest from 6 bands spread across two files (Red, Green, Blue and
Near infrared) and merge them into a single output file, and keep all
their metadata. VRT is a good intermediary except for it drops the
band descriptions. (And some other metadata too, but I’m less
concerned about that.)
Split each band into a single vrt:
gdal_translate -b 1 rgb.tif b-red.vrt
gdal_translate -b 2 rgb.tif b-grn.vrt
gdal_translate -b 3 rgb.tif b-blu.vrt
gdal_translate -b 1 infrared.tif b-nir.vrt
Stack the 4 bands we want back together:
gdalbuildvrt -separate rgb-nir.vrt b-red.vrt b-grn.vrt b-blu.vrt b-nir.vrt
Currently I’m hand editing the last stage vrt to put the description
back in, but it’s a pain and error prone. Is there a better way?
In the end I want arcgis desktop users to see something like the image
on the left (plus the additional NIR band) instead of the right, which
is what happens when there’s no description.
Machine generated alternative text: WorldView-3 Blue (0.450 - 0.510)
um WorldView-3 Green (0.510 - 0.380) um WorldView-3 Red (0.630 -
0.690) um
Machine generated alternative text: @ Band_l Band_2 Band_3
Cheers,
*Matt Wilkie*
Geomatics Analyst
Environment | Technology, Innovation and Mapping
T 867-667-8133 | _Yukon.ca <http://yukon.ca/>_
/Hours: 08:30-16:30, Tue-Wed: Office, Thu-Fri: Remote./
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