Sorry, I forgot to say that by "that tiff file" I was meaning the file I 
downloaded from
http://srtm.csi.cgiar.org/SRT-ZIP/SRTM_V41/SRTM_Data_GeoTiff/srtm_40_01.zip

It may or may not be similar to what Praveen Sinha was meaning.

-Jukka-

> -----Alkuperäinen viesti-----
> Lähettäjä: Rahkonen Jukka [mailto:jukka.rahko...@mmmtike.fi]
> Lähetetty: 29. marraskuuta 2012 11:54
> Vastaanottaja: 'OpenJump develop and use'
> Aihe: Re: [JPP-Devel] problems with old image loader
> 
> Hi,
> 
> That tiff file is a 16-bit grayscale image. It can be opened in OpenJUMP with
> Open - Sextante image but the tiff file is not worth much as an image
> because tiff is here actually a delivery medium for a grid based data -
> elevation values at each image pixel.  For visualizing the height values there
> exist a lot of tools but I have tried just a few of them ever.  Gdal_contour 
> can
> create vector countour lines http://www.gdal.org/gdal_contour.html.  Then
> there is a feature rich toolbox for making raster image visualizing
> http://www.gdal.org/gdaldem.html
> 
> I made two quick trials:
> Create 100 contour lines in shapefile format with 100 meter intervals
> gdal_contour -a elev srtm_40_01.tif test.shp -i 100
> 
> Create a hillshade image with default settings, resulting tiff opens with OJ
> gdaldem hillshade srtm_40_01.tif hillshade.tif
> 
> 
> -Jukka Rahkonen-
> 
> 
> 
> > -----Alkuperäinen viesti-----
> > Lähettäjä: edgar.sol...@web.de [mailto:edgar.sol...@web.de]
> > Lähetetty: 29. marraskuuta 2012 11:15
> > Vastaanottaja: OpenJump develop and use
> > Aihe: Re: [JPP-Devel] problems with old image loader
> >
> > sorry, what is a "SRTM download TIF"?
> > http://wiki.openstreetmap.org/wiki/SRTM ?
> >
> > jukka: could you give him a hint on how to convert it?
> > sinha: what is the exact error using the latest snapshot?
> >
> > .. ede
> >
> > On 29.11.2012 04:58, Praveen Sinha wrote:
> > > Hi,
> > > I too not able to open SRTM download TIF image in OJ. Please see to it.
> > > Thanks.
> > >
> > > P.K.Sinha
> > >
> > > --- On *Wed, 11/28/12, Rahkonen Jukka
> > /<jukka.rahko...@mmmtike.fi>/* wrote:
> > >
> > >
> > >     From: Rahkonen Jukka <jukka.rahko...@mmmtike.fi>
> > >     Subject: Re: [JPP-Devel] problems with old image loader
> > >     To: "'OpenJump develop and use'" <jump-pilot-
> > de...@lists.sourceforge.net>
> > >     Date: Wednesday, November 28, 2012, 7:28 PM
> > >
> > >     Hi,
> > >
> > >     You developers can perhaps say if imageIO-ext could be usable
> > > with
> > OpenJUMP.
> > >     http://docs.codehaus.org/display/GEOTOOLS/ImageIO-EXT+GDAL
> > >
> > >     -Jukka-
> > >
> > >     > -----Alkuperäinen viesti-----
> > >     > Lähettäjä: Stefan Steiniger [mailto:sst...@geo.uzh.ch
> > <http://us.mc1621.mail.yahoo.com/mc/compose?to=sst...@geo.uzh.ch>]
> > >     > Lähetetty: 28. marraskuuta 2012 14:58
> > >     > Vastaanottaja: OpenJump develop and use
> > >     > Aihe: Re: [JPP-Devel] problems with old image loader
> > >     >
> > >     > email - list message:
> > >     >
> > >     > Hi Ede, Jukka and Michael,
> > >     >
> > >     > I kind of agree with Ede to close the bug, if we have a proper 
> > > message
> > >     > returned and OJ does not hang. Loading that specific type of
> > > tiff or png
> > data
> > >     > is rather a feature request.
> > >     >
> > >     > However, for me important too is what Jukka found: That next
> > > time we
> > can
> > >     > suggest to the user to explore & transform with gdal into a 
> > > different
> > >     > (LZW-free?) format. I actually had problems with lzw tiffs and
> > > the old
> > image
> > >     > loader earlier too (= years ago).
> > >     >
> > >     > Maybe, for a windows user, we also could recommmend that
> > > gdal/ogr
> > based
> > >     > file converter by Larry Becker (or was it vector only?).
> > >     >
> > >     > thanks to all for looking into that issue!!!
> > >     > stefan
> > >     >
> > >     > 
> > > ------------------------------------------------------------------------------
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