[vtkusers] Howto supply vector of itk::OrientedImage::Pointer to ImageToVTKImageFilter

[Jothybasu Selvaraj]

First try to convert your 2D slices into a 3D volume using itk. Have a look
at this

http://www.vtk.org/Wiki/ITK/Examples/IO/VolumeFromSlices

Then convert the itk 3D image into vtk 3D image.

HTH

Jothy


On Wed, Oct 19, 2011 at 3:29 PM, Divya Rathore <divyarathore at gmail.com>wrote:

> I am trying to transfer DICOM files read in ITK to VTK for a 3D rendering.
>
> I have a vector of ImageType::Pointer in ITK:
>
> typedef	itk::OrientedImage<signed short, 3> ImageType;
>
> typedef std::vector<ImageType::Pointer> ImageArray;
>
>
> Each element in this vector (ImageArray) contains a slice of DICOM read in
> 'signed short' for certain reasons beyond my control.
> I would like to transfer this ImageArray to ImageToVTKImageFilter as
> follows:
>
> typedef itk::ImageToVTKImageFilter< ImageType> itkVtkConverter;
>
> itkVtkConverter::Pointer conv;
>
>  // QUESTION: HOW TO SUPPLY THE VECTOR ImageArray here?
>
> conv->SetInput(_**_WHAT_GOES_HERE?_**_);
> conv->Update();
>
> as the data is signed short, I will need to convert it to 'unsigned short' that I can achieve as follows:
>
> vtkSmartPointer<vtkImageCast> dataCast = vtkSmartPointer<vtkImageCast>::New();
> dataCast->SetInput(conv->GetOutput());
> dataCast->SetOutputScalarTypeToUnsignedShort();
> dataCast->Update();
>
> finally forwarding this to the vtkVolumeRayCastMapper:
>
> volumeMapper->SetInput(dataCast->GetOutput());
>
>
>
> How to supply the vector ImageArray to ImageToVTKImageFilter?
>
>
>
> best regards,
>
> Divya
>
>
>
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-- 
Jothybasu K Selvaraj
PhD Student
University of Liverpool
Liverpool,UK
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