[ITK-users] Rotating image results in last slices being half empty

Matias matimontg at gmail.com
Sat Apr 8 18:08:22 EDT 2017


Hi,I'm rotating a volume (Using the Euler3DTransform) and the final set of
slices are half black or empty.here's an example when rotating a volume of
10 slices:Am I missing something such as changing the origin or maybe
computing the center incorrectly? (The center is passed as parameter from
another program) <http://itk-users.7.n7.nabble.com/file/n38081/capture.jpg>
And here's the code I'm using:	typedef itk::ResampleImageFilter<ImageType,
ImageType> FilterType;		FilterType::Pointer FiltroResample =
FilterType::New();		FiltroResample->SetInput(reader->GetOutput());		typedef
itk::LinearInterpolateImageFunction<ImageType, double > InterpolatorType;	
InterpolatorType::Pointer interpolator = InterpolatorType::New();	
FiltroResample->SetInterpolator(interpolator);	
FiltroResample->SetOutputDirection(inputImage->GetDirection());	
FiltroResample->SetOutputOrigin(inputImage->GetOrigin());	
ImageType::SizeType inputSize =
inputImage->GetLargestPossibleRegion().GetSize();	
FiltroResample->SetSize(inputSize);		const ImageType::SpacingType&
inputSpacing = inputImage->GetSpacing();	
FiltroResample->SetOutputSpacing(inputSpacing);	
FiltroResample->SetDefaultPixelValue(-1000);		typedef itk::Euler3DTransform<
double > TransformType; //Transform		TransformType::Pointer transform =
TransformType::New();		double alfa, beta, gamma, centro_rotacion_X,
centro_rotacion_Y, centro_rotacion_Z, origenX,origenY;		gamma =
atof(argv[2]);		beta = atof(argv[3]);		alfa = atof(argv[4]);	
centro_rotacion_X = atof(argv[5]);		centro_rotacion_Y = atof(argv[6]);	
centro_rotacion_Z = atof(argv[7]);		origenX = atof(argv[8]);		origenY =
atof(argv[9]);		transform->SetRotation(gamma, beta, alfa);		double centro[3]
= { centro_rotacion_X, centro_rotacion_Y, centro_rotacion_Z };	
transform->SetCenter(centro);               
FiltroResample->SetTransform(transform);         	FiltroResample->Update();



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