[Insight-users] itkVTKtoITKtoVTK modification

[Mathieu Lamard]

The png format is a standart non destructive compressed file format. It 
is well known by all image processing softwares.
Normally the vtkImpot/Export  should work fine (see the itkVTKtoITKtoVTK 
example). But by changing the   vtkImageNoiseSource by  vtkPNGReader it 
dind't and I don't understand why.

Thank for help !

Mathieu



Pieter Vos wrote:
> Hello,
> 
> I am working on the same.
> I did not choose for the export/import. The reason for this is, that the
> vtk part is in tcl/tk and the itk part in c++.
> I work with a structured point dataset in vtk format, which is easy to
> read in itk. This volume is segmented in itk with the
> 3DdeformableModel. It has a model/mesh as output which I have to write to
> a vtk file again. But there is no itkMeshToVTKWriter (or I didn't find it
> yet) so I made a procedure that write's the correct vtk file. 
> 
> I'm interessed in you're findings with the vtkImport/Export, does it work
> fine? What kind of image is the toto.png?
> 
> Greetings,
> 
> Pieter
> 
> 
> On Thu, 2 May 2002, Mathieu Lamard wrote:
> 
> 
>>Thanks Pieter,
>>  but I want to use a vtkReader and not a itk image reader and that's 
>>why a try to modify the itkVTKtoITKtoVTK example.
>>In fact I want to use a vtk for reading images + mouse interaction ... 
>>ant itk for image filtering.
>>
>>Mathieu
>>
>>
>>Pieter Vos wrote:
>>
>>>Hi,
>>>
>>>Maybe I can help. I think you are forgetting to set up an input/output
>>>object:
>>>
>>>  //setup in/output
>>>  itk::PNGImageIO::Pointer io;
>>>  io = itk::PNGImageIO::New();
>>>
>>>  //Read image
>>>  itk::ImageFileReader<RGBImageType>::Pointer reader;
>>>  reader = itk::ImageFileReader<RGBImageType>::New();
>>>  reader->SetFileName( filename );
>>>  reader->SetImageIO(io);
>>>
>>>Also use the smartpointer in sted of the clean star.
>>>You can look in the map /Insight/Testing/Code/IO
>>>for more examples.
>>>
>>>On Tue, 30 Apr 2002, Mathieu Lamard wrote:
>>>
>>>
>>>
>>>>Hello,
>>>>The example itkVTKtoITKtoVTK works fine for me but I want to change
>>>>
>>>>
>>>>vtkImageNoiseSource* source = vtkImageNoiseSource::New();
>>>>  source->SetWholeExtent(0, 255, 0, 255, 0, 0);
>>>>  source->SetMinimum(0);
>>>>  source->SetMaximum(1);
>>>>
>>>>by
>>>>
>>>> vtkPNGReader * m_vtkPNGReader = vtkPNGReader::New();
>>>>  m_vtkPNGReader ->SetFileName( "toto.png" );
>>>>  m_vtkPNGReader ->Update();
>>>>
>>>>  vtkImageLuminance * m_luminance = vtkImageLuminance::New();
>>>>
>>>>  m_luminance -> SetInput(m_vtkPNGReader->GetOutput());
>>>>
>>>>
>>>>And then
>>>>
>>>>  vtkImageExport* vtkExporter = vtkImageExport::New();
>>>>  vtkExporter->SetInput(m_luminance->GetOutput());
>>>>
>>>>But here it did not work :-(
>>>>have anybody  an idea ?
>>>>
>>>>Thank
>>>>
>>>>Mathieu
>>>>
>>>>_______________________________________________
>>>>Insight-users mailing list
>>>>Insight-users@public.kitware.com
>>>>http://public.kitware.com/mailman/listinfo/insight-users
>>>>
>>>
>>>
>>
>>
>>
>