[gdal-dev] Multi-band JPEG2000 support?
jim.lacy at gmail.com
Wed Nov 26 13:08:43 PST 2014
Thanks Even. Is it true that a recompile from source is necessary to support other drivers, namely the JasPer JP2 option? I haven't been able to find any windows binaries that make that driver available. But perhaps that option only supports three bands as well? I haven't been able to find a definitive answer.
> On Nov 26, 2014, at 10:42 AM, Even Rouault-2 [via OSGeo.org] <ml-node+s1560n5175106h69 at n6.nabble.com> wrote:
> Le mercredi 26 novembre 2014 17:31:34, jplacy2 a écrit :
> > Hi Folks-
> > I'm attempting to generate some 4-band JP2 files using the GDAL 1.11 Win64
> > binary acquired from gisinternals.com.
> > I quickly ran into a problem... JP2 driver doesn't like four bands:
> > gdal_translate --debug on -of JP2OpenJPEG test.tif test.jp2
> > GDAL: GDALOpen(test.tif, this=000000000061CB70) succeeds as GTiff.
> > Input file size is 5920, 7700
> > ERROR 6: Unable to export files with 4 bands
> > GDAL: GDALClose(test.tif, this=000000000061CB70)
> > So my question is simple: what options are there for creating multi-band
> > jpeg2000's with GDAL on the Windows platform? I understand there are other
> > driver options, but from what I have read, they all require a license
> > and/or a recompile of GDAL from the source... the latter is not really in
> > my skill set.
> This is known as http://trac.osgeo.org/gdal/ticket/5695. The restriction has
> been put, because currently the driver couldn't not produce correct RGBA files
> with the alpha band correctly marked as such. I may have the opportunity to
> work on that in a medium term.
> In the meantime, you could perhaps try the opj_compress utility of openjpeg (
> https://code.google.com/p/openjpeg/wiki/Downloads?tm=2 ), but it will likely
> has the same flow as indicated above if you're interested in RGBA images.
> > Thanks for any guidance,
> > Jim
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