[Insight-users] ROI Image Filter

[TienGarry]

I use RegionOfInterestImageFilter to extract one slice image from the raw data.
I want to process the data slice by slice for a specific task. 
 
        start[0]= start[1]= start[2] = 0;        size[0] = 256;size[1] = 256;size[2] = 1;        OutputImageType::RegionType desiredRegion;        desiredRegion.SetSize(  size  );        desiredRegion.SetIndex( start );
        roifilter->SetRegionOfInterest( desiredRegion );        roifilter->SetInput(filter->GetOutput());
        OutputImageType::SizeType roisize = roifilter->GetOutput()->GetLargestPossibleRegion().GetSize();        roifilter->Update();
When I debug the code, I got roisize =[0,0,0].
Anyone can help me?
 
 
 
 

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