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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Actually, there is no
real '3D' in Dicom.<br>
Volumes are either a of of slices (one slice in each image file), or a
'multiframe' file (all the planes in a single file).<br>
If you have to deal with a set of slices, you must 'concatenate' the pixels of
each one.<br>
This is done 'out of gdcm'.<br>
<br>
<font color=navy><span style='color:navy'><o:p></o:p></span></font></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 color=navy
face=Wingdings><span style='font-size:10.0pt;font-family:Wingdings;color:navy'>è</span></font><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> how do you represent the image so ? a 3D matrix ? And
what is the file format ?<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
<?/smaller><?/color><?/fontfamily>gdcm comes with a vtkGdcmReader (derived
class of vtkImageReader ) that can read a set of files 'ala VTK')<br>
After that, all the VTK abilities are wide open for you.<br>
<br>
<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 color=navy
face=Wingdings><span style='font-size:10.0pt;font-family:Wingdings;color:navy'>è</span></font><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> In fact, i’ve never used VTK, just install it to use examples of
gdcm<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
<?fontfamily><?param Arial><?color><?param 0000,0000,8080><?smaller><?/smaller><?/color><?/fontfamily>It
depends on what it contains.<br>
Since you're working on MRI brain images, you'll have to perform some
thresholding, segmentation, etc, before.<br>
See VTK doc.<br>
<br>
</span></font><font color=navy face=Wingdings><span style='font-family:Wingdings;
color:navy'>è</span></font><font color=navy><span style='color:navy'> Ok !</span></font><br>
<br>
<font color=navy><span style='color:navy'>Olivier</span></font><o:p></o:p></p>
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