+// =========================================================================
+// @author Leonardo Florez Valencia
+// @email florez-l@javeriana.edu.co
+// =========================================================================
+
+#include <string>
+#include <tclap/CmdLine.h>
+#include <itkImage.h>
+#include <fpa/Common/SliceBySliceRandomWalker.h>
+#include "Functions.h"
+
+// -------------------------------------------------------------------------
+const unsigned int Dim = 3;
+typedef short TPixel;
+typedef unsigned char TLabel;
+typedef itk::NumericTraits< TPixel >::RealType TScalar;
+typedef itk::Image< TPixel, Dim > TImage;
+typedef itk::Image< TLabel, Dim > TLabels;
+typedef itk::Image< TScalar, Dim > TScalarImage;
+
+// -------------------------------------------------------------------------
+int main( int argc, char* argv[] )
+{
+ typedef TCLAP::ValueArg< std::string > _TStringArg;
+ typedef TCLAP::ValueArg< TScalar > _TRealArg;
+
+ // Parse input line
+ _TStringArg in( "i", "input", "Input image", true, "", "file" );
+ _TStringArg labels( "l", "labels", "Input labels", true, "", "file" );
+ _TStringArg vesselness( "v", "vesselness", "Input vesselness", true, "", "file" );
+ _TStringArg out( "o", "output", "Output image", true, "", "file" );
+ _TRealArg beta( "b", "beta", "Beta", false, 2.5, "value (2.5)" );
+ _TRealArg eps( "e", "epsilon", "Epsilon", false, 1e-5, "value (1e-5)" );
+ try
+ {
+ TCLAP::CmdLine cmd( "FastRandomWalker", ' ', "1.0.0" );
+ cmd.add( eps );
+ cmd.add( beta );
+ cmd.add( out );
+ cmd.add( vesselness );
+ cmd.add( labels );
+ cmd.add( in );
+ cmd.parse( argc, argv );
+ }
+ catch( TCLAP::ArgException& err )
+ {
+ std::cerr
+ << "===============================" << std::endl
+ << "Error caught: " << std::endl
+ << err.error( ) << " " << err.argId( ) << std::endl
+ << "===============================" << std::endl
+ << std::endl;
+ return( 1 );
+
+ } // yrt
+
+ try
+ {
+ // Read input image
+ TImage::Pointer input_image;
+ CTBronchi::ReadImage( input_image, in.getValue( ) );
+
+ // Read input labels
+ TLabels::Pointer input_labels;
+ CTBronchi::ReadImage( input_labels, labels.getValue( ) );
+
+ // Read input vesselness
+ TScalarImage::Pointer input_vesselness;
+ CTBronchi::ReadImage( input_vesselness, vesselness.getValue( ) );
+
+ // Random walk
+ typedef fpa::Common::SliceBySliceRandomWalker< TImage, TLabels, TScalarImage > TFilter;
+ TFilter::Pointer filter = TFilter::New( );
+ filter->SetInput( input_image );
+ filter->SetInputLabels( input_labels );
+ filter->SetInputVesselness( input_vesselness );
+
+ // Prepare weight functor
+ /* TODO
+ typedef fpa::Functors::Dijkstra::Image::Gaussian< TImage, TScalar > TWeight;
+ TWeight::Pointer weight = TWeight::New( );
+ weight->SetBeta( beta.getValue( ) );
+ weight->SetEpsilon( eps.getValue( ) );
+
+ // Random walk
+ typedef fpa::Filters::Image::RandomWalker< TImage, TLabels, TScalar > TFilter;
+ TFilter::Pointer filter = TFilter::New( );
+ filter->SetInputImage( input_image );
+ filter->SetInputLabels( input_labels );
+ filter->SetWeightFunction( weight );
+ double t = CTBronchi::MeasureTime( filter );
+ std::cout << "FastRandomWalk executed in " << t << " s" << std::endl;
+
+ // Write result
+ CTBronchi::WriteImage( filter->GetOutputLabels( ), out.getValue( ) );
+ */
+ }
+ catch( std::exception& err )
+ {
+ std::cerr
+ << "===============================" << std::endl
+ << "Error caught: " << std::endl
+ << err.what( ) << std::endl
+ << "===============================" << std::endl
+ << std::endl;
+ return( 1 );
+
+ } // yrt
+ return( 0 );
+}
+
+// eof - $RCSfile$