[gdal-dev] Creating external overviews for JP2 files?

[Alessandro Parma]

Thanks,

I'll try and get back to you with the output



On Thu, Oct 18, 2018 at 3:44 PM jratike80 <
jukka.rahkonen at maanmittauslaitos.fi> wrote:

> alpa wrote
> > Thanks for your reply,
> >
> > My bad, probably copy-pasting mistake. I've re-run the commands:
> >
> > Just to be sure I exported the GDAL_SKIP env var as well:
> >
> > export GDAL_SKIP=JP2OpenJPEG
> > gdalinfo --formats
> > ...
> >   ERS -raster- (rw+v): ERMapper .ers Labelled
> >   JP2KAK -raster,vector- (rwv): JPEG-2000 (based on Kakadu *v7.10.4*)
> >   JPIPKAK -raster- (ro): JPIP (based on Kakadu)
> >   L1B -raster- (rovs): NOAA Polar Orbiter Level 1b Data Set
> > ...
> > (No JP2OpenJPEG, by the way, I am using Kakadu 7.10.4)
> >
> > Looks like gdal_translate is producing a 0-filled raster:
> >
> > gdal_translate -outsize 50% 50% -co TILED=YES -co COMPRESS=JPEG -co
> > PHOTOMETRIC=YCBCR  ./T34WEB_20181015T104021_TCI_10m.jp2
> > ./T34WEB_20181015T104021_TCI_10m.jp2.ovr *--config GDAL_SKIP JP2OpenJPEG*
>
> Hi,
>
> I used your command for one of our orthophoto .jp2 files with these drivers
>
>   gdalinfo --formats|find "JP2"
>   JP2ECW -raster,vector- (rov): ERDAS JPEG2000 (SDK 5.3)
>   JP2MrSID -raster- (rov): MrSID JPEG2000
>   JP2OpenJPEG -raster,vector- (rwv): JPEG-2000 driver based on OpenJPEG
> library
>
> The resulting half-dimensioned GeoTIFF is good with all drivers. Without
> having a recent Kakadu driver available I fear that I can't test anything
> more.
> If your build suppors debug messages you can have a new try by adding
> "--debug on" into your gdal_translate command.
>
> -Jukka Rahkonen-
>
>
>
>
>
> --
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-- 

Regards,

Alessandro Parma

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