[vtkusers] ITK Noise removal filter on VTK file

Majid M. Sadeghi majid.msadeghi at yahoo.com
Mon Feb 12 07:58:05 EST 2018

Thakn you so much for the great help. 

    On Monday, February 12, 2018 2:02 PM, Jon Haitz Legarreta <jhlegarreta at vicomtech.org> wrote:

 Dear Majid,if you are processing a 2D/3D (medical image) volumetric dataset, I'd say that it'd be easier to just use ITK as a starting point. If you then need visualization capabilities, then you'd need to use VTK as well.
For resampling, and reslicing purposes, you may want to have a look athttps://itk.org/Doxygen/html/classitk_1_1ResampleImageFilter.html

and the exampleshttps://itk.org/ITKExamples/src/Filtering/ImageGrid/ResampleAnImage/Documentation.html

For using VTK with medical datasets:https://lorensen.github.io/VTKExamples/site/Cxx/#medical

For edge preserving noise removal, you can have a look athttps://itk.org/Doxygen/html/classitk_1_1AnisotropicDiffusionImageFilter.html

Edge preserving noise removal is described in Section 2.7.3. of the ITK Software Guide:https://itk.org/ItkSoftwareGuide.pdf

For storing your image, ITK tends to use metaimage format:https://itk.org/Doxygen/html/classitk_1_1MetaImageIO.html

VTK can also write/read it.

PS: ITK has transitioned to discourse.itk.org as a discussion forum. So if your question is only about ITK, it would be advisable to post it there.

On 12 February 2018 at 12:27, Majid M. Sadeghi via vtkusers <vtkusers at vtk.org> wrote:

Dear All,
I am using a vtkGDCMImageReader to import 3D DICOM images. Then I adjust the spacing and reslice. After that I can save it as both image data|(vtkXMLImageDataWriter) or polydata( vtkImageDataGeometryFilter).
I want to apply edge preserving noise removal to the data either just after reading images, or after saving as .vtp files.
I have setup ITK and scanned the ITK book, but I have no experience on it. 

Is there any link or example which can guide me on how to perform this? (what type of structure is common between ITK and VTK? Should I perform the filter after saving in VTK or before that? which filter do you suggest for the best speed and perfomance?)
Thanks a lot.

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