1 // =========================================================================
2 // @author Leonardo Florez Valencia
3 // @email florez-l@javeriana.edu.co
4 // =========================================================================
7 #include <itkImageFileWriter.h>
8 #include <fpa/Filters/Image/RegionGrow.h>
9 #include <fpa/Functors/RegionGrow/Tautology.h>
11 // -------------------------------------------------------------------------
12 const unsigned int Dim = 2;
13 typedef unsigned char TPixel;
14 typedef itk::Image< TPixel, Dim > TImage;
16 // -------------------------------------------------------------------------
17 int main( int argc, char* argv[] )
23 << "Usage: " << argv[ 0 ]
24 << " output_image output_marks size [seeds]"
29 std::string output_image_filename = argv[ 1 ];
30 std::string output_marks_filename = argv[ 2 ];
31 TImage::SizeType size;
32 size.Fill( std::atoi( argv[ 3 ] ) );
35 TImage::Pointer image = TImage::New( );
36 image->SetRegions( size );
38 image->FillBuffer( TPixel( 0 ) );
41 typedef fpa::Functors::RegionGrow::Tautology< TPixel > TPredicate;
42 TPredicate::Pointer predicate = TPredicate::New( );
45 typedef fpa::Filters::Image::RegionGrow< TImage, TImage > TFilter;
46 TFilter::Pointer filter = TFilter::New( );
47 filter->SetInput( image );
48 filter->SetPredicate( predicate );
49 filter->SetInsideValue( std::numeric_limits< TPixel >::max( ) );
50 filter->SetOutsideValue( TPixel( 0 ) );
53 for( int i = 4; i < argc; i += Dim )
55 TImage::IndexType seed;
56 for( int j = 0; j < Dim; ++j )
58 seed[ j ] = std::atoi( argv[ i + j ] );
59 filter->AddSeed( seed );
67 typedef itk::ImageFileWriter< TFilter::TOutputImage > TOutputWriter;
68 TOutputWriter::Pointer output_writer = TOutputWriter::New( );
69 output_writer->SetInput( filter->GetOutput( ) );
70 output_writer->SetFileName( output_image_filename );
72 typedef itk::ImageFileWriter< TFilter::TMarksImage > TMarksWriter;
73 TMarksWriter::Pointer marks_writer = TMarksWriter::New( );
74 marks_writer->SetInput( filter->GetMarks( ) );
75 marks_writer->SetFileName( output_marks_filename );
79 output_writer->Update( );
80 marks_writer->Update( );
82 catch( std::exception& err )
84 std::cerr << "Error caught: " << err.what( ) << std::endl;