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MathGroup Archive 2004

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Re: import 16-bit greyscale TIFF file

  • To: mathgroup at smc.vnet.net
  • Subject: [mg45892] Re: import 16-bit greyscale TIFF file
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Thu, 29 Jan 2004 05:34:39 -0500 (EST)
  • Organization: Universitaet Leipzig
  • References: <butdkc$9q6$1@smc.vnet.net> <bv839e$ib6$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

a) MS Paint does not handle 16 bit images
b) copy an image via clip board will instert the image
   into the *FrontEnd* but not into the Kernel. You can see
   this image but you can't do anything with it. 
   Just looking on a 16 bit image is nonsense because
   the human eye can nonly see 150 -- 200 gray scales
c) Import[] with 16 bit TIFF's scale down the range to 8 bit

16 bit (more precise 12 bit) are the standard bit depth
of all most all medical imagine software and a conversion
of the images to DICOM format may also a way to read the
16 bit images into the kernel.

Regards
  Jens


Steve Luttrell wrote:
> 
> There are two ways that you might try:
> 
> 1. If you have any paint-type application you could open the TIFF, copy it
> to the clipboard, and then paste into your Mathematica notebook.
> 2. image=Import[<TIFF pathname>,"TIFF"]; Show[image];
> 
> I have checked that that this works on an 8-bit greyscale TIFF, so I can't
> be certain that it works for a 16-bit TIFF.
> 
> Steve Luttrell
> 
> "zeug" <zeug at ukmn.gwdg.de> wrote in message
> news:butdkc$9q6$1 at smc.vnet.net...
> > Hello,
> >
> > I'm trying to import a 16-bit greyscale TIFF file into Mathematica 5.0.
> > Is there any way to do this directly?
> > If not, has anybody got the structure of this kind of files, that could
> > help to read out the relevant information??
> >
> > Thanks for your help.
> >
> > Stephan Junek
> >


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