[gdal-dev] How to edit GeoTIFF band names with gdal_edit?

[Rahkonen Jukka (MML)]

Hi,

The names of the raster bands seem to be stored into GeoTIFF with GDAL tag 42112

Tag 42112: <GDALMetadata>
<Item name="DESCRIPTION" sample="0" role="description">SomeBandName 001</Item>
<Item name="DESCRIPTION" sample="1" role="description">SomeBandName 002</Item>

The description can be set with Python by doing something like
RasterBand.SetDescription(BandName)

I guess that those metadata items can be added also with gdal_edit but I can't imagine what is the right syntax. A simple test with
gdal_edit -mo "DESCRIPTION=test" test.tif
adds metadata into higher level

Metadata:
  AREA_OR_POINT=Area
  DESCRIPTION=test

So how would the gdal_edit command look like on Windows, if the aim is to add a metadata item
<Item name="DESCRIPTION" sample="0" role="description">SomeBandName 001</Item>
so that after this gdalinfo would report

Band 1 Block=20x20 Type=UInt16, ColorInterp=Gray
  Description = SomeBandName 001

-Jukka Rahkonen-

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