<div dir="ltr">Hmmm, yes, that's the idea.<div><br></div><div>I was trying, and I think I got it, but something is wrong connecting its output to the input of another filter:</div><div><br></div><div><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(128,128,0)">void</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,128)">Exporter</span><span style="color:rgb(0,0,0)">::</span><span style="color:rgb(0,0,0)">exportOriginal</span><span style="color:rgb(0,0,0)">(</span><span style="color:rgb(128,0,128)">QString</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">fileName</span><span style="color:rgb(0,0,0)">,</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,128)">ImageType</span><span style="color:rgb(0,0,0)">::</span><span style="color:rgb(128,0,128)">Pointer</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">image</span><span style="color:rgb(0,0,0)">,</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,128,0)">int</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">frame</span><span style="color:rgb(0,0,0)">)</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)">{</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,128,0)">typedef</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,128)">itk</span><span style="color:rgb(0,0,0)">::</span><span style="color:rgb(128,0,128)">ImageFileWriter</span><span style="color:rgb(0,0,0)"><</span><span style="color:rgb(128,0,128)">ImageType</span><span style="color:rgb(0,0,0)">></span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,128)">WriterType</span><span style="color:rgb(0,0,0)">;</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,128)">WriterType</span><span style="color:rgb(0,0,0)">::</span><span style="color:rgb(128,0,128)">Pointer</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">writer</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">=</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,128)">WriterType</span><span style="color:rgb(0,0,0)">::</span><span style="color:rgb(0,0,0)">New</span><span style="color:rgb(0,0,0)">();</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">writer</span><span style="color:rgb(0,0,0)">-></span><span style="font-style:italic;color:rgb(0,0,0)">SetFileName</span><span style="color:rgb(0,0,0)">(</span><span style="color:rgb(0,0,0)">fileName</span><span style="color:rgb(0,0,0)">.</span><span style="color:rgb(0,0,0)">toStdString</span><span style="color:rgb(0,0,0)">().</span><span style="color:rgb(0,0,0)">c_str</span><span style="color:rgb(0,0,0)">());</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">writer</span><span style="color:rgb(0,0,0)">-></span><span style="color:rgb(0,0,0)">SetInput</span><span style="color:rgb(0,0,0)">(</span><span style="color:rgb(0,0,0)">image</span><span style="color:rgb(0,0,0)">);</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><br></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,128)">ImageType</span><span style="color:rgb(0,0,0)">::</span><span style="color:rgb(128,0,128)">RegionType</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">inputRegion</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">=</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">image</span><span style="color:rgb(0,0,0)">-></span><span style="font-style:italic;color:rgb(0,0,0)">GetLargestPossibleRegion</span><span style="color:rgb(0,0,0)">();</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,128)">ImageType</span><span style="color:rgb(0,0,0)">::</span><span style="color:rgb(128,0,128)">IndexType</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">index</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">=</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">inputRegion</span><span style="color:rgb(0,0,0)">.</span><span style="color:rgb(0,0,0)">GetIndex</span><span style="color:rgb(0,0,0)">();</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,128)">ImageType</span><span style="color:rgb(0,0,0)">::</span><span style="color:rgb(128,0,128)">SizeType</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">size</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">=</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">inputRegion</span><span style="color:rgb(0,0,0)">.</span><span style="color:rgb(0,0,0)">GetSize</span><span style="color:rgb(0,0,0)">();</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><br></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">index</span><span style="color:rgb(0,0,0)">[</span><span style="color:rgb(0,0,128)">0</span><span style="color:rgb(0,0,0)">]</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">=</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,128)">0</span><span style="color:rgb(0,0,0)">;</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">index</span><span style="color:rgb(0,0,0)">[</span><span style="color:rgb(0,0,128)">1</span><span style="color:rgb(0,0,0)">]</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">=</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,128)">0</span><span style="color:rgb(0,0,0)">;</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">index</span><span style="color:rgb(0,0,0)">[</span><span style="color:rgb(0,0,128)">2</span><span style="color:rgb(0,0,0)">]</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">=</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">frame</span><span style="color:rgb(0,0,0)">;</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">size</span><span style="color:rgb(0,0,0)">[</span><span style="color:rgb(0,0,128)">2</span><span style="color:rgb(0,0,0)">]</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">=</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,128)">0</span><span style="color:rgb(0,0,0)">;</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><br></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,128)">ImageType</span><span style="color:rgb(0,0,0)">::</span><span style="color:rgb(128,0,128)">RegionType</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">outputRegion</span><span style="color:rgb(0,0,0)">;</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">outputRegion</span><span style="color:rgb(0,0,0)">.</span><span style="color:rgb(0,0,0)">SetIndex</span><span style="color:rgb(0,0,0)">(</span><span style="color:rgb(0,0,0)">index</span><span style="color:rgb(0,0,0)">);</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">outputRegion</span><span style="color:rgb(0,0,0)">.</span><span style="color:rgb(0,0,0)">SetSize</span><span style="color:rgb(0,0,0)">(</span><span style="color:rgb(0,0,0)">size</span><span style="color:rgb(0,0,0)">);</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><br></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,128,0)">typedef</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,128)">itk</span><span style="color:rgb(0,0,0)">::</span><span style="color:rgb(128,0,128)">Testing</span><span style="color:rgb(0,0,0)">::</span><span style="color:rgb(128,0,128)">ExtractSliceImageFilter</span><span style="color:rgb(0,0,0)"><</span><span style="color:rgb(128,0,128)">ImageType</span><span style="color:rgb(0,0,0)">,</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,128)">FrameImageType</span><span style="color:rgb(0,0,0)">></span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,128)">ExtractType</span><span style="color:rgb(0,0,0)">;</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,128)">ExtractType</span><span style="color:rgb(0,0,0)">::</span><span style="color:rgb(128,0,128)">Pointer</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">extracter</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">=</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,128)">ExtractType</span><span style="color:rgb(0,0,0)">::</span><span style="color:rgb(0,0,0)">New</span><span style="color:rgb(0,0,0)">();</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">extracter</span><span style="color:rgb(0,0,0)">-></span><span style="color:rgb(0,0,0)">SetExtractionRegion</span><span style="color:rgb(0,0,0)">(</span><span style="color:rgb(0,0,0)">outputRegion</span><span style="color:rgb(0,0,0)">);</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><br></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">writer</span><span style="color:rgb(0,0,0)">-></span><span style="color:rgb(0,0,0)">GetInput</span><span style="color:rgb(0,0,0)">(</span><span style="color:rgb(0,0,0)">extracter</span><span style="color:rgb(0,0,0)">-></span><span style="color:rgb(0,0,0)">GetOutput</span><span style="color:rgb(0,0,0)">());</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,128,0)">try</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">{</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">writer</span><span style="color:rgb(0,0,0)">-></span><span style="font-style:italic;color:rgb(0,0,0)">Update</span><span style="color:rgb(0,0,0)">();</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">}</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,128,0)">catch</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">(</span><span style="color:rgb(128,0,128)">itk</span><span style="color:rgb(0,0,0)">::</span><span style="color:rgb(128,0,128)">ExceptionObject</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">&</span><span style="color:rgb(0,0,0)">ex</span><span style="color:rgb(0,0,0)">)</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">{</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,0)">std</span><span style="color:rgb(0,0,0)">:</span>cerr<span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)"><<</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">ex</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)"><<</span><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(128,0,128)">std</span><span style="color:rgb(0,0,0)">::</span>endl<span style="color:rgb(0,0,0)">;</span></pre>
<pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(192,192,192)"> </span><span style="color:rgb(0,0,0)">}</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)">}</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"><br></span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)">Trying to compile, it gives me:</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"><br></span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)">"</span><font color="#000000">error: C2664: 'const itk::Image<UTILS::PixelType,3> *itk::ImageFileWriter<UTILS::ImageType>::GetInput(unsigned int)' : cannot convert argument 1 from 'itk::Image<UTILS::PixelType,2> *' to 'unsigned int'
There is no context in which this conversion is possible"</font></pre><pre style="margin-top:0px;margin-bottom:0px"><font color="#000000"><br></font></pre><pre style="margin-top:0px;margin-bottom:0px"><font color="#000000">Well, where is the unsigned int?? The input and output format of ExtractSliceImageFilter were unsigned short, and after seeing this I changed to unsigned int, with same result.</font></pre><pre style="margin-top:0px;margin-bottom:0px"><font color="#000000"><br></font></pre><pre style="margin-top:0px;margin-bottom:0px"><font color="#000000">Anyone seeing the problem? Cause I can't understand the error.</font></pre><pre style="margin-top:0px;margin-bottom:0px"><font color="#000000"><br></font></pre><pre style="margin-top:0px;margin-bottom:0px"><font color="#000000">Thank you.</font></pre></div></div><div class="gmail_extra"><br><div class="gmail_quote">2015-09-01 10:31 GMT+02:00 Timothee Evain <span dir="ltr"><<a href="mailto:tevain@telecom-paristech.fr" target="_blank">tevain@telecom-paristech.fr</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello Marcos,<br>
<br>
You can extract one slice from your 3D data with itk::ExtractImageFilter<br>
You have to specify the region you want to get as indicated here <a href="http://www.itk.org/Doxygen/html/classitk_1_1ExtractImageFilter.html" rel="noreferrer" target="_blank">http://www.itk.org/Doxygen/html/classitk_1_1ExtractImageFilter.html</a><br>
More precisely, you have to indicate the index of the slice you want and set the third dimension size to 0.<br>
For example, saying you have an image 250x250x250 and you want the 89th slice you have to set:<br>
RegionSize = {250,250,0}<br>
RegionIndex = {0,0,89}<br>
<br>
The filter return a 2D image when you collapse the third dimension.<br>
<br>
I think this can be what you want ?<br>
<br>
Tim<br>
<br>
----- Mail original -----<br>
De: "Marcos" <<a href="mailto:fotosentido@gmail.com">fotosentido@gmail.com</a>><br>
À: <a href="mailto:insight-users@itk.org">insight-users@itk.org</a><br>
Envoyé: Mardi 1 Septembre 2015 09:45:00<br>
Objet: Re: [ITK] [ITK-users] Export specific frame/slice of multiframe dicom file: ExtractSliceImageFilter?<br>
<div><div class="h5"><br>
Hi,<br>
<br>
the input of vtkJPEGWriter:<br>
<br>
template < class T ><br>
void Exporter :: exportImage ( QString fileName , QVTKWidget * widget )<br>
{<br>
vtkWindowToImageFilter * filter = vtkWindowToImageFilter :: New ();<br>
filter -> SetInput ( widget -> GetRenderWindow ());<br>
<br>
vtkSmartPointer < T > writer = vtkSmartPointer < T >:: New ();<br>
writer -> SetFileName ( fileName . toStdString (). c_str ());<br>
writer -> SetInputConnection ( filter -> GetOutputPort ());<br>
<br>
writer -> Write ();<br>
}<br>
<br>
T can be an vtkJPEGWriter, vtkPNGWriter, etc.<br>
I set the slice with vtkImageViewer2::GetSlice()<br>
But this depends on the vtk renderwindow, and its size,...<br>
<br>
That's why I need to do it with ITK, unless I can export the original frame with VTK.<br>
<br>
Thank you.<br>
<br>
2015-09-01 1:16 GMT+02:00 Siavash Khallaghi < <a href="mailto:siavashk@ece.ubc.ca">siavashk@ece.ubc.ca</a> > :<br>
<br>
<br>
Hi Marcos,<br>
<br>
How do you set the input of your vtkJPEGWriter?<br>
<br>
Siavash<br>
<br>
<br>
<br>
--<br>
View this message in context: <a href="http://itk-users.7.n7.nabble.com/ITK-users-Export-specific-frame-slice-of-multiframe-dicom-file-ExtractSliceImageFilter-tp36081p36084.html" rel="noreferrer" target="_blank">http://itk-users.7.n7.nabble.com/ITK-users-Export-specific-frame-slice-of-multiframe-dicom-file-ExtractSliceImageFilter-tp36081p36084.html</a><br>
Sent from the ITK - Users mailing list archive at Nabble.com.<br>
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