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"gdaladdo -clean" does not remove the internal overview from the file see http://trac.osgeo.org/gdal/ticket/4940

How do I remove GeoTIFF overview(s) without having to re-compress the main image.

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Which version of gdaladdo are you using? – Mapperz♦ Feb 7 at 16:26
GDAL 1.9.2, released 2012/10/08 – Firefishy Feb 7 at 16:32
Think I may be able to self answer: tiffsplit (of libtiff, ubuntu package: libtiff-tools) and gdalcopyproj.py – Firefishy Feb 7 at 16:33
You can answer and accept your own questions on GIS-SE, more users welcome. – Mapperz♦ Feb 7 at 16:43

1 Answer

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Using tiffsplit (of libtiff, debian/ubuntu package: libtiff-tools) and gdalcopyproj.py you can extract the main image + overviews and then copy across the original geo metadata.

Example:

tiffsplit source.tif tmp-
gdalcopyproj.py source.tif tmp-aaa.tif 
mv tmp-aaa.tif final.tif
rm tmp-???.tif
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