Geoserver_Geotiff_with_alpha_band_and_jpeg_compression.md

Geotiff with alpha band and jpeg compression

Geoserver doesn't support Geotiff with alpha band and jpeg compression made with GDAL. (Needs funding to be done)

Example which is prone to fail :

gdal_translate -co COMPRESS=JPEG -co JPEG_QUALITY=75 in.tif out.tif

Workaround: use a mask

gdal_translate -co COMPRESS=JPEG -co JPEG_QUALITY=75 -b 1 -b 2 -b 3 -mask 4 -co PHOTOMETRIC=YCBCR --config GDAL_TIFF_INTERNAL_MASK YES in.tif out.tif

References:

• https://matrix.to/#/!eRmmLjsPElFqHofPCc:gitter.im/$mi0z4UDau4p6UfKjj5i85UMkCuk8kRBJ65C4-XsK30s?via=gitter.im&via=matrix.org&via=hive-mind.network
• https://gis.stackexchange.com/questions/361277/geoserver-fails-to-read-a-jpeg-compressed-tiff-with-alpha-band

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Created on 2023-03-31 by Sylvain Poulain