[OSGeo Africa] Converting TIFF image planes

[Szabó Balázs]

Hi Zoltan!

Maybe tiffcrop -p (if you dont want to use Grass)
You can check the program's man page hier:
http://www.remotesensing.org/libtiff/man/tiffcrop.1.html

Üdv: Balazs


On cs, 2009-11-12 at 13:01 +0200, Zoltan Szecsei wrote:
> Hi Tim,
> I have a RGB-ised satellite image we are digitising from, but our
> (oldish) software displays it as a red image.
> I fiddled around using tiffinfo on other images that display correctly
> with this software, and noticed the difference in the Planar
> Configuration. (Which also explains why we only see the red)
> Our Windows based R2V package allowed the conversion (which then
> displays correctly in our Linux package), but I am looking for
> something to do this conversion via a Linux bash script - and to make
> minimum or no other changes to the Tiff image.
> 
> Regards,
> Zoltan
> 
> Got image:
> > zls at gl0:/home/gisprojects$ tiffinfo P001.TIF
> > TIFF Directory at offset 0x150e1684
> >   Image Width: 12405 Image Length: 9475
> >   Bits/Sample: 8
> >   Sample Format: unsigned integer
> >   Compression Scheme: None
> >   Photometric Interpretation: RGB color
> >   Image Description: "{\n  bandList = \n  [\n    3;\n    2;\n    1;
> > \n  ]\n}"
> >   Orientation: row 0 top, col 0 lhs
> >   Samples/Pixel: 3
> >   Rows/Strip: 84
> >   Min Sample Value: 0
> >   Max Sample Value: 255
> >   Planar Configuration: separate image planes
> But need as above, but with Planar Config as below::
> > zls at gl0:/home/gisprojects/t4a/images/gurue$ tiffinfo P002.TIF 
> > TIFF Directory at offset 0x4458bf8
> >   Subfile Type: (0 = 0x0)
> >   Image Width: 12405 Image Length: 9475
> >   Resolution: 0, 0 pixels/inch
> >   Bits/Sample: 8
> >   Compression Scheme: PackBits
> >   Photometric Interpretation: palette color (RGB from colormap)
> >   Artist: "R2V for Windows"
> >   Host Computer: "PC/MS WINDOWS"
> >   Make: "Able Software Corp."
> >   Samples/Pixel: 1
> >   Rows/Strip: 1
> >   Planar Configuration: single image plane
> >   Color Map: (present)
> 
> 
> 
> 
> Tim Sutton wrote: 
> > Hi
> > 
> > Do you mean you want to copy from a palletted tiff to an e.g. Single band greyscale tif? Or three bands each representing R, B, G? Bearing in mind that you will lose the colour info, you could do this using gdal_translate.
> > 
> > Regards
> > 
> > Tim
> > ------Original Message------
> > From: Zoltan Szecsei
> > Sender: africa-bounces at lists.osgeo.org
> > To: africa at lists.osgeo.org
> > ReplyTo: Africa local chapter discussions
> > Subject: [OSGeo Africa] Converting TIFF image planes
> > Sent: Nov 12, 2009 10:35 AM
> > 
> > Hi,
> > I've had a look at some of the Linux tiff tools (eg tiffcp) but cannot 
> > find a way to command-line convert an RGB tiff image from separate image 
> > planes, to a single image plane.
> > 
> > Does anyone have any pointers, please?
> > 
> > Thanks & regards,
> > Zoltan
> > 
> > 
> > 
> >   
> > 
> > ____________________________________________________________________
> > 
> > _______________________________________________
> > Africa mailing list
> > Africa at lists.osgeo.org
> > http://lists.osgeo.org/mailman/listinfo/africa
> >   
> 
> 
> -- 
> 
> ===========================================
> Zoltan Szecsei
> Director
> 
> Geograph (Pty) Ltd.
> P.O. Box 7, Muizenberg 7950, South Africa.
> 
> 65 Main Road, Muizenberg 7945
> Western Cape, South Africa.  
> 
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