filters/clitkSplitImageGenericFilter.cxx

   1 /*=========================================================================
   2   Program:   vv                     http://www.creatis.insa-lyon.fr/rio/vv
   3
   4   Authors belong to:
   5   - University of LYON              http://www.universite-lyon.fr/
   6   - Léon Bérard cancer center       http://oncora1.lyon.fnclcc.fr
   7   - CREATIS CNRS laboratory         http://www.creatis.insa-lyon.fr
   8
   9   This software is distributed WITHOUT ANY WARRANTY; without even
  10   the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  11   PURPOSE.  See the copyright notices for more information.
  12
  13   It is distributed under dual licence
  14
  15   - BSD        See included LICENSE.txt file
  16   - CeCILL-B   http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html
  17 ======================================================================-====*/
  18 /**
  19  -------------------------------------------------------------------
  20  * @file   clitkSplitImageGenericFilter.cxx
  21  * @author Joël Schaerer
  22  * @date   20 April 2009
  23
  24  * @brief
  25  -------------------------------------------------------------------*/
  26
  27 #include "clitkSplitImageGenericFilter.h"
  28
  29 #include "clitkSplitImageGenericFilter.txx"
  30 //--------------------------------------------------------------------
  31 clitk::SplitImageGenericFilter::SplitImageGenericFilter():
  32   clitk::ImageToImageGenericFilter<Self>("SplitImage") {
  33   mSplitDimension = 0;
  34   InitializeImageType<3>();
  35   InitializeImageType<4>();
  36 }
  37 //--------------------------------------------------------------------
  38
  39
  40 //--------------------------------------------------------------------
  41 template<unsigned int Dim>
  42 void clitk::SplitImageGenericFilter::InitializeImageType() {
  43   ADD_IMAGE_TYPE(Dim, char);
  44   ADD_IMAGE_TYPE(Dim, unsigned char);
  45   ADD_IMAGE_TYPE(Dim, short);
  46   ADD_IMAGE_TYPE(Dim, int);
  47   ADD_IMAGE_TYPE(Dim, float);
  48   ADD_VEC_IMAGE_TYPE(Dim, 3,float);
  49 }
  50 //--------------------------------------------------------------------
  51
  52 //--------------------------------------------------------------------
  53 template<class ImageType>
  54 void clitk::SplitImageGenericFilter::UpdateWithInputImageType() {
  55
  56   // Read input
  57   typedef typename ImageType::PixelType PixelType;
  58   typedef itk::Image<PixelType,ImageType::ImageDimension-1> OutputImageType;
  59   typename ImageType::Pointer input = this->GetInput<ImageType>(0);
  60   typedef itk::ExtractImageFilter<ImageType,OutputImageType> FilterType;
  61   typename FilterType::Pointer filter= FilterType::New();
  62
  63   filter->SetInput(input);
  64   typename ImageType::SizeType size=input->GetLargestPossibleRegion().GetSize();
  65   size[mSplitDimension]=0;
  66   typename ImageType::RegionType extracted_region;
  67   extracted_region.SetSize(size);
  68   filter->SetExtractionRegion(extracted_region);
  69   filter->Update();
  70
  71   typename ImageType::IndexType index=input->GetLargestPossibleRegion().GetIndex();
  72   std::string base_filename=GetOutputFilename();
  73   unsigned int number_of_output_images=input->GetLargestPossibleRegion().GetSize()[mSplitDimension];
  74   for (unsigned int i=0;i<number_of_output_images;i++)
  75   {
  76       std::ostringstream ss;
  77       ss << i;
  78       index[mSplitDimension]=i;
  79       extracted_region.SetIndex(index);
  80       filter->SetExtractionRegion(extracted_region);
  81       filter->Update();
  82       SetOutputFilename(base_filename+"_"+ss.str()+".mhd");
  83       typename OutputImageType::Pointer output=filter->GetOutput();
  84       SetNextOutput<OutputImageType>(output);
  85   }
  86 }
  87 //--------------------------------------------------------------------