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| ==BinaryBoundaries.cxx== | | {{warning|1=The media wiki content on this page is no longer maintained. The examples presented on the https://itk.org/Wiki/* pages likely require ITK version 4.13 or earlier releases. In many cases, the examples on this page no longer conform to the best practices for modern ITK versions.}} |
| <source lang="cpp">
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| #include "itkImage.h"
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| #include "itkImageFileWriter.h"
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| #include "itkInvertIntensityImageFilter.h"
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| #include "itkBinaryContourImageFilter.h"
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| #include "itkRescaleIntensityImageFilter.h"
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| #include "QuickView.h"
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| typedef itk::Image<unsigned char, 2> ImageType;
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| void CreateImage(ImageType::Pointer image);
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| int main(int, char *[])
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| {
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| ImageType::Pointer image = ImageType::New();
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| CreateImage(image);
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| typedef itk::BinaryContourImageFilter <ImageType, ImageType >
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| binaryContourImageFilterType;
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| // Outer boundary
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| binaryContourImageFilterType::Pointer binaryContourFilter
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| = binaryContourImageFilterType::New ();
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| binaryContourFilter->SetInput(image);
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| binaryContourFilter->SetForegroundValue(0);
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| binaryContourFilter->SetBackgroundValue(255);
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| binaryContourFilter->Update();
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| // Invert the result
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| typedef itk::InvertIntensityImageFilter <ImageType>
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| InvertIntensityImageFilterType;
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| InvertIntensityImageFilterType::Pointer invertIntensityFilter
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| = InvertIntensityImageFilterType::New();
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| invertIntensityFilter->SetInput(binaryContourFilter->GetOutput());
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| invertIntensityFilter->Update();
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| ImageType::Pointer outerBoundary = ImageType::New();
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| outerBoundary->Graft(invertIntensityFilter->GetOutput());
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|
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| // Inner boundary
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| binaryContourFilter->SetForegroundValue(255);
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| binaryContourFilter->SetBackgroundValue(0);
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| binaryContourFilter->Update();
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| QuickView viewer;
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| viewer.AddImage(image.GetPointer());
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| viewer.AddImage(outerBoundary.GetPointer());
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| viewer.AddImage(binaryContourFilter->GetOutput());
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| viewer.Visualize();
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| return EXIT_SUCCESS;
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| }
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| void CreateImage(ImageType::Pointer image)
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| {
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| ImageType::IndexType start;
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| start.Fill(0);
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| ImageType::SizeType size;
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| size.Fill(20);
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| ImageType::RegionType region(start, size); | |
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| image->SetRegions(region);
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| image->Allocate();
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| // Make a square
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| for(unsigned int r = 5; r < 10; r++)
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| {
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| for(unsigned int c = 5; c < 10; c++)
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| {
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| ImageType::IndexType pixelIndex;
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| pixelIndex[0] = r;
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| pixelIndex[1] = c;
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| image->SetPixel(pixelIndex, 255);
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| }
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| }
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| }
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| </source>
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| ==CMakeLists.txt==
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| <source lang="cmake">
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| cmake_minimum_required(VERSION 2.6)
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| PROJECT(BinaryBoundaries)
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| include_directories(/home/doriad/src/ITK/Wrapping/WrapITK/ExternalProjects/ItkVtkGlue/src/)
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| include_directories(/home/doriad/ITKWikiExamples/ItkVtkGlue)
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| FIND_PACKAGE(VTK REQUIRED)
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| INCLUDE(${VTK_USE_FILE})
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| FIND_PACKAGE(ITK REQUIRED)
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| INCLUDE(${ITK_USE_FILE})
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| ADD_EXECUTABLE(BinaryBoundaries BinaryBoundaries.cxx /home/doriad/ITKWikiExamples/ItkVtkGlue/QuickView.cxx)
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| TARGET_LINK_LIBRARIES(BinaryBoundaries
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| vtkHybrid
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| ITKBasicFilters ITKCommon ITKIO)
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| </source>
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