Authors belong to:
- University of LYON http://www.universite-lyon.fr/
- - Léon Bérard cancer center http://oncora1.lyon.fnclcc.fr
+ - Léon Bérard cancer center http://www.centreleonberard.fr
- CREATIS CNRS laboratory http://www.creatis.insa-lyon.fr
This software is distributed WITHOUT ANY WARRANTY; without even
- BSD See included LICENSE.txt file
- CeCILL-B http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html
-======================================================================-====*/
+===========================================================================**/
#ifndef VVIMAGEFROMITK_H
#define VVIMAGEFROMITK_H
// itk
#include <itkExtractImageFilter.h>
-#include <itkImageToVTKImageFilter.h>
//------------------------------------------------------------------------------
/**Converts the itk image to vv, handling the 4D problem
* The time_sequence boolean specifies that the image is to be interpreted as a time sequence,
* even if its dim is < 4. */
-template<unsigned int Dim, class PixelType> vvImage::Pointer vvImageFromITK(typename itk::Image<PixelType,Dim>::Pointer input, bool time_sequence=false)
+
+template<unsigned int Dim, class PixelType>
+struct vvImageFromITK_Impl
{
- assert(Dim < 5 && Dim > 0); // We don't handle anything higher than 4-dimensional (for the moment :-p)
+ static vvImage::Pointer Do (typename itk::Image<PixelType,Dim>::Pointer input, bool time_sequence=false)
+ {
vvImage::Pointer vv_image=vvImage::New();
- vv_image->Init(); //Delete any existing images
typedef itk::Image< PixelType, Dim > InputImageType;
-
- if (Dim == 4 || time_sequence) //The time sequence case: create a series of VTK images
+ if (time_sequence) //The time sequence case: create a series of VTK images
{
- typedef itk::Image< PixelType, Dim - 1 > ConnectorImageType;
- typedef itk::ImageToVTKImageFilter <ConnectorImageType> ConnectorType;
- typedef itk::ExtractImageFilter<InputImageType,ConnectorImageType> FilterType;
+ typedef itk::Image< PixelType, Dim - 1 > ItkImageType;
+ typedef itk::ExtractImageFilter<InputImageType, ItkImageType> FilterType;
+
+ //extract the 3D slices and put them in a std::vector<vtkImageData*>
+ input->UpdateOutputInformation();
+ typename InputImageType::RegionType inputRegion = input->GetLargestPossibleRegion();
+ typename InputImageType::SizeType inputSize = inputRegion.GetSize();
+ typename InputImageType::IndexType start = inputRegion.GetIndex();
+ typename InputImageType::SizeType extractedRegionSize = inputSize;
+ typename InputImageType::RegionType extractedRegion;
+ extractedRegionSize[Dim - 1] = 0;
+ extractedRegion.SetSize(extractedRegionSize);
+
+ for (unsigned int i = 0; i < inputSize[Dim - 1]; i++) {
+ start[Dim - 1] = i;
+ extractedRegion.SetIndex(start);
typename FilterType::Pointer filter = FilterType::New();
- typename ConnectorType::Pointer connector = ConnectorType::New();
-
- //extract the 3D slices and put them in a std::vector<vtkImageData*>
- typename InputImageType::RegionType inputRegion = input->GetLargestPossibleRegion();
- typename InputImageType::SizeType inputSize = inputRegion.GetSize();
-
- typename InputImageType::SizeType extractedRegionSize = inputSize;
- typename InputImageType::RegionType extractedRegion;
- extractedRegionSize[Dim - 1] = 0;
- extractedRegion.SetSize(extractedRegionSize);
-
+#if ITK_VERSION_MAJOR == 4
+ filter->SetDirectionCollapseToSubmatrix();
+#endif
+ filter->SetExtractionRegion(extractedRegion);
filter->SetInput(input);
- connector->SetInput(filter->GetOutput());
-
- typename InputImageType::IndexType start = inputRegion.GetIndex();
-
- for (unsigned int i = 0; i < inputSize[Dim - 1]; i++) {
- start[Dim - 1] = i;
- extractedRegion.SetIndex(start);
- filter->SetExtractionRegion(extractedRegion);
- try {
- filter->Update();
- }
- catch ( itk::ExceptionObject & err ) {
- std::cerr << "Error while setting vvImage from ITK (Dim==4) [Extract phase]"
- << " " << err << std::endl;
- return vv_image;
- }
- try {
- connector->Update();
- }
- catch ( itk::ExceptionObject & err ) {
- std::cerr << "Error while setting vvImage from ITK (Dim==4) [Connect phase]"
- << " " << err << std::endl;
- return vv_image;
- }
- vtkImageData *image = vtkImageData::New();
- image->ShallowCopy(connector->GetOutput());
- vv_image->AddImage(image);
- }
- vv_image->SetTimeSpacing(input->GetSpacing()[Dim-1]);
- vv_image->SetTimeOrigin(input->GetOrigin()[Dim-1]);
+ filter->ReleaseDataFlagOn();
+ vv_image->AddItkImage<ItkImageType>(filter->GetOutput());
+ }
+ vv_image->SetTimeSpacing(input->GetSpacing()[Dim-1]);
+ vv_image->SetTimeOrigin(input->GetOrigin()[Dim-1]);
}
else //Dim == 1,2,3 and not time_sequence
{
- typedef itk::Image< PixelType, Dim > ConnectorImageType;
- typedef itk::ImageToVTKImageFilter <ConnectorImageType> ConnectorType;
- typename ConnectorType::Pointer connector = ConnectorType::New();
- connector->SetInput(input);
-
- try {
- connector->Update();
- }
- catch ( itk::ExceptionObject & err ) {
- std::cerr << "Error while setting vvImage from ITK (Dim==3)"
- << " " << err << std::endl;
- return vv_image;
- }
- vtkImageData *image = vtkImageData::New();
- image->ShallowCopy(connector->GetOutput());
- vv_image->AddImage(image);
+ vv_image->AddItkImage<InputImageType>(input);
+ }
+ return vv_image;
+ }
+};
+
+template<class PixelType>
+struct vvImageFromITK_Impl<4u, PixelType>
+{
+ static vvImage::Pointer Do (typename itk::Image<PixelType,4u>::Pointer input, bool time_sequence=false)
+ {
+ vvImage::Pointer vv_image=vvImage::New();
+ typedef itk::Image< PixelType, 4 > InputImageType;
+
+ typedef itk::Image< PixelType, 3 > ItkImageType;
+ typedef itk::ExtractImageFilter<InputImageType, ItkImageType> FilterType;
+
+ //extract the 3D slices and put them in a std::vector<vtkImageData*>
+ input->UpdateOutputInformation();
+ typename InputImageType::RegionType inputRegion = input->GetLargestPossibleRegion();
+ typename InputImageType::SizeType inputSize = inputRegion.GetSize();
+ typename InputImageType::IndexType start = inputRegion.GetIndex();
+ typename InputImageType::SizeType extractedRegionSize = inputSize;
+ typename InputImageType::RegionType extractedRegion;
+ extractedRegionSize[3] = 0;
+ extractedRegion.SetSize(extractedRegionSize);
+
+ for (unsigned int i = 0; i < inputSize[3]; i++) {
+ start[3] = i;
+ extractedRegion.SetIndex(start);
+
+ typename FilterType::Pointer filter = FilterType::New();
+#if ITK_VERSION_MAJOR == 4
+ filter->SetDirectionCollapseToSubmatrix();
+#endif
+ filter->SetExtractionRegion(extractedRegion);
+ filter->SetInput(input);
+ filter->ReleaseDataFlagOn();
+ vv_image->AddItkImage<ItkImageType>(filter->GetOutput());
}
+ vv_image->SetTimeSpacing(input->GetSpacing()[3]);
+ vv_image->SetTimeOrigin(input->GetOrigin()[3]);
return vv_image;
+ }
+};
+
+template<unsigned int Dim, class PixelType> vvImage::Pointer vvImageFromITK(typename itk::Image<PixelType,Dim>::Pointer input, bool time_sequence=false)
+{
+ assert(Dim < 5 && Dim > 0); // We don't handle anything higher than 4-dimensional (for the moment :-p)
+ return vvImageFromITK_Impl<Dim, PixelType>::Do(input, time_sequence);
}
//------------------------------------------------------------------------------
git://git.creatis.insa-lyon.fr / clitk.git / blobdiff