--- /dev/null
+// =========================================================================
+// @author Leonardo Florez Valencia
+// @email florez-l@javeriana.edu.co
+// =========================================================================
+
+#include <itkImage.h>
+#include <itkImageFileReader.h>
+#include <fpa/Common/Image/SkeletonWriter.h>
+#include <fpa/Filters/Image/ExtractSkeleton.h>
+
+// -------------------------------------------------------------------------
+const unsigned int Dim = 2;
+typedef unsigned char TPixel;
+typedef itk::Image< TPixel, Dim > TImage;
+
+// -------------------------------------------------------------------------
+int main( int argc, char* argv[] )
+{
+ // Get arguments
+ if( argc < 3 )
+ {
+ std::cerr
+ << "Usage: " << argv[ 0 ]
+ << " input_image output_skeleton [seed]"
+ << std::endl;
+ return( 1 );
+
+ } // fi
+ std::string input_image_filename = argv[ 1 ];
+ std::string output_skeleton_filename = argv[ 2 ];
+
+ // Read image
+ typedef itk::ImageFileReader< TImage > TImageReader;
+ TImageReader::Pointer input_image_reader = TImageReader::New( );
+ input_image_reader->SetFileName( input_image_filename );
+
+ // Prepare filter
+ typedef fpa::Filters::Image::ExtractSkeleton< TImage > TFilter;
+ TFilter::Pointer filter = TFilter::New( );
+ filter->SetInput( input_image_reader->GetOutput( ) );
+
+ // Get seed
+ if( argc >= Dim + 3 )
+ {
+ TImage::IndexType seed;
+ for( int j = 0; j < Dim; ++j )
+ if( 3 + j < argc )
+ seed[ j ] = std::atoi( argv[ 3 + j ] );
+ filter->SeedFromMaximumDistanceOff( );
+ filter->SetSeed( seed );
+ }
+ else
+ filter->SeedFromMaximumDistanceOn( );
+
+ // Configure distance map
+ filter->GetDistanceMap( )->InsideIsPositiveOn( );
+ filter->GetDistanceMap( )->SquaredDistanceOff( );
+ filter->GetDistanceMap( )->UseImageSpacingOn( );
+
+ // Execute filter
+ filter->Update( );
+
+ // Save results
+ typedef fpa::Common::Image::SkeletonWriter< TFilter::TSkeleton > TSkeletonWriter;
+ TSkeletonWriter::Pointer skeleton_writer = TSkeletonWriter::New( );
+ skeleton_writer->SetInput( filter->GetOutput( ) );
+ skeleton_writer->SetFileName( output_skeleton_filename );
+
+ try
+ {
+ skeleton_writer->Update( );
+ }
+ catch( std::exception& err )
+ {
+ std::cerr << "Error caught: " << err.what( ) << std::endl;
+ return( 1 );
+
+ } // yrt
+ return( 0 );
+}
+
+// eof - $RCSfile$