plugins/ITKImageGenericFilters_1/RegionOfInterestImageFilter.cxx

   1 #include <ITKImageGenericFilters_1/RegionOfInterestImageFilter.h>
   2 #include <cpInstances/DataObjects/Image.h>
   3 #include <cpInstances/DataObjects/BoundingBox.h>
   4 #include <cpInstances/DataObjects/Image_Demanglers.h>
   5
   6 #include <itkRGBPixel.h>
   7 #include <itkRGBAPixel.h>
   8 #include <itkRegionOfInterestImageFilter.h>
   9
  10 // -------------------------------------------------------------------------
  11 cpPluginsITKImageGenericFilters_1::RegionOfInterestImageFilter::
  12 RegionOfInterestImageFilter( )
  13   : Superclass( )
  14 {
  15   typedef cpInstances::DataObjects::Image _TImage;
  16   typedef cpInstances::DataObjects::BoundingBox _TBBox;
  17   this->_ConfigureInput< _TImage >( "Input", true, false );
  18   this->_ConfigureInput< _TBBox >( "BoundingBox", true, false );
  19   this->_ConfigureOutput< _TImage >( "Output" );
  20 }
  21
  22 // -------------------------------------------------------------------------
  23 cpPluginsITKImageGenericFilters_1::RegionOfInterestImageFilter::
  24 ~RegionOfInterestImageFilter( )
  25 {
  26 }
  27
  28 // -------------------------------------------------------------------------
  29 void cpPluginsITKImageGenericFilters_1::RegionOfInterestImageFilter::
  30 _GenerateData( )
  31 {
  32   auto o = this->GetInputData( "Input" );
  33   cpPlugins_Demangle_Image_ScalarPixels_AllDims_1( o, _GD0 )
  34     this->_Error( "Invalid input image." );
  35 }
  36
  37 // -------------------------------------------------------------------------
  38 template< class _TImage >
  39 void cpPluginsITKImageGenericFilters_1::RegionOfInterestImageFilter::
  40 _GD0( _TImage* input )
  41 {
  42   typedef cpInstances::DataObjects::BoundingBox _TBBox;
  43   typedef itk::RegionOfInterestImageFilter< _TImage, _TImage > _TFilter;
  44   typedef typename _TImage::IndexType  _TIndex;
  45   typedef typename _TImage::PointType  _TPoint;
  46   typedef typename _TImage::RegionType _TRegion;
  47   typedef typename _TImage::SizeType   _TSize;
  48
  49   auto bb = this->GetInput< _TBBox >( "BoundingBox" );
  50
  51   _TRegion in_region = input->GetRequestedRegion( );
  52   _TIndex in_i0 = in_region.GetIndex( );
  53   _TIndex in_i1 = in_i0 + in_region.GetSize( );
  54   _TIndex i0, i1;
  55   input->TransformPhysicalPointToIndex( bb->GetMinimum< _TPoint >( ), i0 );
  56   input->TransformPhysicalPointToIndex( bb->GetMaximum< _TPoint >( ), i1 );
  57   for( unsigned int d = 0; d < _TImage::ImageDimension; ++d )
  58   {
  59     if( i0[ d ] < in_i0[ d ] ) i0[ d ] = in_i0[ d ];
  60     if( i1[ d ] > in_i1[ d ] ) i1[ d ] = in_i1[ d ];
  61
  62   } // rof
  63
  64   _TSize size;
  65   for( unsigned int d = 0; d < _TImage::ImageDimension; ++d )
  66     size[ d ] = i1[ d ] - i0[ d ];
  67
  68   _TRegion region;
  69   region.SetIndex( i0 );
  70   region.SetSize( size );
  71
  72   auto filter = this->_CreateITK< _TFilter >( );
  73   filter->SetInput( input );
  74   filter->SetRegionOfInterest( region );
  75   filter->Update( );
  76   this->GetOutput( "Output" )->SetITK( filter->GetOutput( ) );
  77 }
  78
  79 // eof - $RCSfile$