added initial image centralization to BLUTDIR

[clitk.git] / registration / clitkBLUTDIRGenericFilter.cxx

diff --git a/registration/clitkBLUTDIRGenericFilter.cxx b/registration/clitkBLUTDIRGenericFilter.cxx
index 39c1d3d53b529d263947edeca5715f2bcc66326c..9f808e7e1ffa24b8126457acf3ea72894e44704e 100644 (file)
--- a/registration/clitkBLUTDIRGenericFilter.cxx
+++ b/registration/clitkBLUTDIRGenericFilter.cxx
@@ -29,7 +29,8 @@ It is distributed under dual licence
 
 #include "clitkBLUTDIRGenericFilter.h"
 #include "clitkBLUTDIRCommandIterationUpdateDVF.h"
-
+#include "itkCenteredTransformInitializer.h"
+  
 namespace clitk
 {
 
@@ -322,7 +323,6 @@ namespace clitk
       // The metric region with respect to the extracted transform region:
       // where should the metric be CALCULATED (depends on transform)
       typename FixedImageType::RegionType metricRegion = fixedImage->GetLargestPossibleRegion();
-      typename FixedImageType::RegionType::SizeType metricRegionSize=metricRegion.GetSize();
       typename FixedImageType::RegionType::IndexType metricRegionIndex=metricRegion.GetIndex();
       typename FixedImageType::PointType metricRegionOrigin=fixedImage->GetOrigin();
 
@@ -387,6 +387,9 @@ namespace clitk
         // Crop the fixedImage to the bounding box to facilitate multi-resolution
         typedef itk::ExtractImageFilter<FixedImageType,FixedImageType> ExtractImageFilterType;
         typename ExtractImageFilterType::Pointer extractImageFilter=ExtractImageFilterType::New();
+#if ITK_VERSION_MAJOR == 4
+        extractImageFilter->SetDirectionCollapseToSubmatrix();
+#endif
         extractImageFilter->SetInput(fixedImage);
         extractImageFilter->SetExtractionRegion(transformRegion);
         extractImageFilter->Update();
@@ -493,6 +496,20 @@ namespace clitk
         itk::Vector<double,3> finalTranslation = clitk::GetTranslationPartMatrix3D(rigidTransformMatrix);
         rigidTransform->SetTranslation(finalTranslation);
       }
+      else
+      {
+        if(m_Verbose) std::cout<<"No itinial matrix given. Centering all images..."<<std::endl;
+        
+        rigidTransform=RigidTransformType::New();
+        
+        typedef itk::CenteredTransformInitializer<RigidTransformType, FixedImageType, MovingImageType > TransformInitializerType;
+        typename TransformInitializerType::Pointer initializer = TransformInitializerType::New();
+        initializer->SetTransform( rigidTransform );
+        initializer->SetFixedImage( fixedImage );
+        initializer->SetMovingImage( movingImage );        
+        initializer->GeometryOn();
+        initializer->InitializeTransform();
+      }
 
 
       //=======================================================
@@ -627,7 +644,7 @@ namespace clitk
       typename  MetricType::Pointer metric=genericMetric->GetMetricPointer();
       if (movingMask) metric->SetMovingImageMask(movingMask);
 
-#ifdef ITK_USE_OPTIMIZED_REGISTRATION_METHODS
+#if defined(ITK_USE_OPTIMIZED_REGISTRATION_METHODS) || ITK_VERSION_MAJOR >= 4
       if (threadsGiven) {
         metric->SetNumberOfThreads( threads );
         if (m_Verbose) std::cout<< "Using " << threads << " threads." << std::endl;