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<font size="-1"><font face="Verdana">Thanks a lot Anka,<br>
<br>
I tried setting the lookup table like this:<br>
<br>
vtkLookupTable *hueLut = vtkLookupTable::New();<br>
hueLut->SetTableRange (0, 2000);<br>
hueLut->SetHueRange (0, 1);<br>
hueLut->SetSaturationRange (1, 1);<br>
hueLut->SetValueRange (1, 1);<br>
hueLut->Build();<br>
<br>
But it just gives the image a "goldish" tint which isnt what I want. I
am guessing I set up the table wrong?<br>
</font></font><br>
Anka Kochanowska wrote:
<blockquote cite="mid:49BE5D25.1030200@bic.mni.mcgill.ca" type="cite">SetLookupTable()
?
<br>
Anka
<br>
<br>
John Eke wrote:
<br>
<blockquote type="cite"><br>
Hi,
<br>
<br>
I am currently calculating window-level values of an image actor from
user selected brightness and contrast levels. I pass these values to
vtkImageMapToWindowLevelColors::SetWindow and
vtkImageMapToWindowLevelColors::SetLevel methods. The brightness and
contrast works, but it always outputs a greyscale image. How can I get
it to do the window-level modifications and still output a color image?
(Just like in vtkImageViewer but I noticed it uses vtkImageMapper which
does vtkImageMapper::SetColorWindow - is there a difference?)
<br>
<br>
Am I not setting up my lookup table properly? Not sure what the problem
is.
<br>
<br>
Thanks
<br>
<br>
John E
<br>
<br>
<br>
-----Original Message-----
<br>
From: <a class="moz-txt-link-abbreviated" href="mailto:vtkusers-bounces@vtk.org">vtkusers-bounces@vtk.org</a> on behalf of Miguel Angel Rodriguez
Florido
<br>
Sent: Mon 3/16/2009 9:13 AM
<br>
To: Mathieu Malaterre
<br>
Cc: <a class="moz-txt-link-abbreviated" href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a>
<br>
Subject: Re: [vtkusers] vtkDICOMImageReader and an extrange error,..
<br>
<br>
Hi Mathieu,
<br>
<br>
You were right. The dicom file was compressed. I have used the
gdcmconv
<br>
cmd to uncompress it.
<br>
<br>
Thank you very much for your useful information.
<br>
<br>
Best.
<br>
<br>
Mathieu Malaterre wrote:
<br>
> Did you read the documentation ?
<br>
> <a class="moz-txt-link-freetext" href="http://www.vtk.org/doc/nightly/html/classvtkDICOMImageReader.html">http://www.vtk.org/doc/nightly/html/classvtkDICOMImageReader.html</a>
<br>
>
<br>
> If you can read it with Slicer, this means this is a proper DICOM
file
<br>
> but vtkDICOMImageReader only handles:
<br>
>
<br>
> ...
<br>
> Warning:
<br>
> This reader might eventually handle ACR-NEMA file (predecessor
of
<br>
> the DICOM format for medical images). This reader does not handle
<br>
> encapsulated format, only plain raw file are handled. This reader
also
<br>
> does not handle multi-frames DICOM datasets.
<br>
> ...
<br>
>
<br>
> Have a look at vtkGDCMImageReader which will handle you file (I
would
<br>
> bet this is a compressed data).
<br>
>
<br>
> <a class="moz-txt-link-freetext" href="http://gdcm.sourceforge.net/html/classvtkGDCMImageReader.html">http://gdcm.sourceforge.net/html/classvtkGDCMImageReader.html</a>
<br>
>
<br>
> ref:
<br>
>
<a class="moz-txt-link-freetext" href="http://apps.sourceforge.net/mediawiki/gdcm/index.php?title=GDCM_Release_2.0">http://apps.sourceforge.net/mediawiki/gdcm/index.php?title=GDCM_Release_2.0</a>
<br>
>
<br>
> If you cannot integrate gdcm into your project you can use
gdcmconv
<br>
> --raw to decompress the image and make it compatible with
<br>
> vtkDICOMImageReader
<br>
>
<br>
>
<a class="moz-txt-link-freetext" href="http://apps.sourceforge.net/mediawiki/gdcm/index.php?title=Gdcmconv">http://apps.sourceforge.net/mediawiki/gdcm/index.php?title=Gdcmconv</a>
<br>
>
<br>
> 2cts
<br>
<br>
<br>
--
<br>
Miguel Angel Rodríguez Florido
<br>
Departamento de Ingeniería del Software
<br>
División de Investigación y Desarrollo Tecnológico
<br>
INSTITUTO TECNOLOGICO DE CANARIAS, S.A. - GOBIERNO DE CANARIAS
<br>
URL: <a class="moz-txt-link-abbreviated" href="http://www.itccanarias.org">www.itccanarias.org</a> Tlfno: +34 928 727548, Fax: +34 928 727517
<br>
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