[Geoserver-devel] [JIRA] (GEOS-10295) Band names are automatically renamed when 1-3/4 band geotiff raster store is created

GeoServer GeoServer Developer
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1

Maarten Pronk created an issue

GeoServer / BugGEOS-10295

Band names are automatically renamed when 1-3/4 band geotiff raster store is created

Issue Type:

BugBug

Affects Versions:

2.19.3

Assignee:

Unassigned

Created:

03/Nov/21 7:01 PM

Priority:

MediumMedium

Reporter:

Maarten Pronk

If I create a store and a layer based on a geotiff with either 1, 3 or 4 bands, the band names are renamed automatically, as shown in Coverage Band Details part on the layer page.

1 band - GRAY_INDEX
3 bands - RED_BAND, GREEN_BAND and BLUE_BAND
4 bands - RED_BAND, GREEN_BAND, BLUE_BAND and ALPHA_BAND

Any other number of bands and the bands are called Band1, Band2, etc.

This behavior isn’t documented nor configurable.

GDAL has the same behaviour, but has a configuration option (PHOTOMETRIC=[MINISBLACK/MINISWHITE/RGB/CMYK/YCBCR/CIELAB/ICCLAB/ITULAB) that writes a tiff tag, but this is not picked up by GeoServer it seems.

Not every 4 band geotiff is RGBA, so I like to have the option to always have my bands named consistently Band1, Band2 etc, either by configuring an option in GeoServer, or by setting a tag in the source geotiff.

Related to https://osgeo-org.atlassian.net/browse/GEOS-9889.

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