+
+ // Perform Crop
+ typedef itk::RegionOfInterestImageFilter<ImageType, ImageType> CropFilterType;
+ typename CropFilterType::Pointer cropFilter = CropFilterType::New();
+ cropFilter->SetInput(image);
+ cropFilter->SetRegionOfInterest(region);
+ cropFilter->Update();
+ typename ImageType::Pointer result = cropFilter->GetOutput();
+
+ // Auto Crop
+ if (autoCrop) {
+ result = clitk::AutoCrop<ImageType>(result, BG);
+ }
+ return result;
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template<class ImageType>
+void
+clitk::ComputeCentroids(typename ImageType::Pointer image,
+ typename ImageType::PixelType BG,
+ std::vector<typename ImageType::PointType> & centroids)
+{
+ typedef long LabelType;
+ static const unsigned int Dim = ImageType::ImageDimension;
+ typedef itk::ShapeLabelObject< LabelType, Dim > LabelObjectType;
+ typedef itk::LabelMap< LabelObjectType > LabelMapType;
+ typedef itk::LabelImageToLabelMapFilter<ImageType, LabelMapType> ImageToMapFilterType;
+ typename ImageToMapFilterType::Pointer imageToLabelFilter = ImageToMapFilterType::New();
+ typedef itk::ShapeLabelMapFilter<LabelMapType, ImageType> ShapeFilterType;
+ typename ShapeFilterType::Pointer statFilter = ShapeFilterType::New();
+ imageToLabelFilter->SetBackgroundValue(BG);
+ imageToLabelFilter->SetInput(image);
+ statFilter->SetInput(imageToLabelFilter->GetOutput());
+ statFilter->Update();
+ typename LabelMapType::Pointer labelMap = statFilter->GetOutput();
+
+ centroids.clear();
+ typename ImageType::PointType dummy;
+ centroids.push_back(dummy); // label 0 -> no centroid, use dummy point
+ for(uint i=1; i<labelMap->GetNumberOfLabelObjects()+1; i++) {
+ centroids.push_back(labelMap->GetLabelObject(i)->GetCentroid());
+ }
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template<class ImageType>
+void
+clitk::ExtractSlices(typename ImageType::Pointer image,
+ int direction,
+ std::vector<typename itk::Image<typename ImageType::PixelType,
+ ImageType::ImageDimension-1>::Pointer > & slices)
+{
+ typedef clitk::ExtractSliceFilter<ImageType> ExtractSliceFilterType;
+ typedef typename ExtractSliceFilterType::SliceType SliceType;
+ typename ExtractSliceFilterType::Pointer
+ extractSliceFilter = ExtractSliceFilterType::New();
+ extractSliceFilter->SetInput(image);
+ extractSliceFilter->SetDirection(direction);
+ extractSliceFilter->Update();
+ extractSliceFilter->GetOutputSlices(slices);
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template<class ImageType>
+typename ImageType::Pointer
+clitk::JoinSlices(std::vector<typename itk::Image<typename ImageType::PixelType,
+ ImageType::ImageDimension-1>::Pointer > & slices,
+ typename ImageType::Pointer input,
+ int direction) {
+ typedef typename itk::Image<typename ImageType::PixelType, ImageType::ImageDimension-1> SliceType;
+ typedef itk::JoinSeriesImageFilter<SliceType, ImageType> JoinSeriesFilterType;
+ typename JoinSeriesFilterType::Pointer joinFilter = JoinSeriesFilterType::New();
+ joinFilter->SetOrigin(input->GetOrigin()[direction]);
+ joinFilter->SetSpacing(input->GetSpacing()[direction]);
+ for(unsigned int i=0; i<slices.size(); i++) {
+ joinFilter->PushBackInput(slices[i]);
+ }
+ joinFilter->Update();
+ return joinFilter->GetOutput();
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template<class ImageType>
+void
+clitk::PointsUtils<ImageType>::Convert2DTo3D(const PointType2D & p,
+ ImagePointer image,
+ const int slice,
+ PointType3D & p3D)
+{
+ p3D[0] = p[0];
+ p3D[1] = p[1];
+ p3D[2] = (image->GetLargestPossibleRegion().GetIndex()[2]+slice)*image->GetSpacing()[2]
+ + image->GetOrigin()[2];
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template<class ImageType>
+void
+clitk::PointsUtils<ImageType>::Convert2DTo3DList(const MapPoint2DType & map,
+ ImagePointer image,
+ VectorPoint3DType & list)
+{
+ typename MapPoint2DType::const_iterator iter = map.begin();
+ while (iter != map.end()) {
+ PointType3D p;
+ Convert2DTo3D(iter->second, image, iter->first, p);
+ list.push_back(p);
+ ++iter;
+ }
+}
+//--------------------------------------------------------------------
+
+//--------------------------------------------------------------------
+template<class ImageType>
+void
+clitk::WriteListOfLandmarks(std::vector<typename ImageType::PointType> points,
+ std::string filename)
+{
+ std::ofstream os;
+ openFileForWriting(os, filename);
+ os << "LANDMARKS1" << std::endl;
+ for(uint i=0; i<points.size(); i++) {
+ const typename ImageType::PointType & p = points[i];
+ // Write it in the file
+ os << i << " " << p[0] << " " << p[1] << " " << p[2] << " 0 0 " << std::endl;
+ }
+ os.close();
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template<class ImageType>
+typename ImageType::Pointer
+clitk::Dilate(typename ImageType::Pointer image,
+ double radiusInMM,
+ typename ImageType::PixelType BG,
+ typename ImageType::PixelType FG,
+ bool extendSupport)
+{
+ typename ImageType::SizeType r;
+ for(uint i=0; i<ImageType::ImageDimension; i++)
+ r[i] = (uint)lrint(radiusInMM/image->GetSpacing()[i]);
+ return clitk::Dilate<ImageType>(image, r, BG, FG, extendSupport);
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template<class ImageType>
+typename ImageType::Pointer
+clitk::Dilate(typename ImageType::Pointer image,
+ typename ImageType::PointType radiusInMM,
+ typename ImageType::PixelType BG,
+ typename ImageType::PixelType FG,
+ bool extendSupport)
+{
+ typename ImageType::SizeType r;
+ for(uint i=0; i<ImageType::ImageDimension; i++)
+ r[i] = (uint)lrint(radiusInMM[i]/image->GetSpacing()[i]);
+ return clitk::Dilate<ImageType>(image, r, BG, FG, extendSupport);
+}
+//--------------------------------------------------------------------
+
+
+//--------------------------------------------------------------------
+template<class ImageType>
+typename ImageType::Pointer
+clitk::Dilate(typename ImageType::Pointer image,
+ typename ImageType::SizeType radius,
+ typename ImageType::PixelType BG,
+ typename ImageType::PixelType FG,
+ bool extendSupport)
+{
+ // Create kernel for dilatation
+ typedef itk::BinaryBallStructuringElement<typename ImageType::PixelType,
+ ImageType::ImageDimension> KernelType;
+ KernelType structuringElement;
+ structuringElement.SetRadius(radius);
+ structuringElement.CreateStructuringElement();
+
+ if (extendSupport) {
+ typedef itk::ConstantPadImageFilter<ImageType, ImageType> PadFilterType;
+ typename PadFilterType::Pointer padFilter = PadFilterType::New();
+ padFilter->SetInput(image);
+ typename ImageType::SizeType lower;
+ typename ImageType::SizeType upper;
+ for(uint i=0; i<3; i++) {
+ lower[i] = upper[i] = 2*(radius[i]+1);
+ }
+ padFilter->SetPadLowerBound(lower);
+ padFilter->SetPadUpperBound(upper);
+ padFilter->Update();
+ image = padFilter->GetOutput();