[Insight-users] ResamplingFilter problem

[Alessandro]

Hi,

I tried but still nothing seems to come out...

Ale

Il giorno 02/ott/2012, alle ore 12.39, alex Dowson ha scritto:

> 
> Hi
> 
> 
> Try calling the resample->Update() before the resample->GetOutput()
> 
> 
> 
> 
> -----Original Message----- From: Alessandro
> Sent: Tuesday, October 02, 2012 4:07 PM
> To: Insight User
> Subject: [Insight-users] ResamplingFilter problem
> 
> Hello,
> 
> I tried to Resample a 3d Slice Volume using a reference image. I wrote the following function (inside a class) to perform the task:
> 
> ImageVolumeType::Pointer VolumeRetriever::applyResamplingFromImage (ImageVolumeType::Pointer img, ImageVolumeType::Pointer ref) {
> 
>   typedef itk::IdentityTransform<double, 3> TransformType;
>   typedef itk::ResampleImageFilter<ImageVolumeType, ImageVolumeType> ResampleImageFilterType;
> 
>   ResampleImageFilterType::Pointer resample = ResampleImageFilterType::New();
> 
>   resample->SetInput(img);
>   resample->UseReferenceImageOn();
>   resample->SetReferenceImage(ref);
>   resample->UpdateLargestPossibleRegion();
> 
>   return resample->GetOutput();
> }
> 
> where ImageVolumeType is  typedef itk::Image< InputPixelType, 3 > ImageVolumeType;
> 
> Problem is: when I run it the return is a NULL pointer...
> 
> What am I missing?
> 
> Thanks,
> Ale
> 
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