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| ==LabelGeometryImageFilter.cxx==
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| <source lang="cpp">
| |
| #include "itkImage.h"
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| #include "itkImageFileWriter.h"
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| #include "itkImageRegionIterator.h"
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| #include "itkBinaryImageToLabelMapFilter.h"
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| #include "itkLabelMapToLabelImageFilter.h"
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| #include "itkLabelGeometryImageFilter.h"
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| | |
| typedef itk::Image<unsigned char, 2> ImageType;
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| static 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::BinaryImageToLabelMapFilter<ImageType> BinaryImageToLabelMapFilterType;
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| BinaryImageToLabelMapFilterType::Pointer binaryImageToLabelMapFilter = BinaryImageToLabelMapFilterType::New();
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| binaryImageToLabelMapFilter->SetInput(image);
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| binaryImageToLabelMapFilter->Update();
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| | |
| typedef itk::LabelMapToLabelImageFilter<BinaryImageToLabelMapFilterType::OutputImageType, ImageType> LabelMapToLabelImageFilterType;
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| LabelMapToLabelImageFilterType::Pointer labelMapToLabelImageFilter = LabelMapToLabelImageFilterType::New();
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| labelMapToLabelImageFilter->SetInput(binaryImageToLabelMapFilter->GetOutput());
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| labelMapToLabelImageFilter->Update();
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| | |
| typedef itk::LabelGeometryImageFilter< ImageType > LabelGeometryImageFilterType;
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| LabelGeometryImageFilterType::Pointer labelGeometryImageFilter = LabelGeometryImageFilterType::New();
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| labelGeometryImageFilter->SetInput( labelMapToLabelImageFilter->GetOutput() );
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| | |
| // These generate optional outputs.
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| labelGeometryImageFilter->CalculatePixelIndicesOn();
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| labelGeometryImageFilter->CalculateOrientedBoundingBoxOn();
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| labelGeometryImageFilter->CalculateOrientedLabelRegionsOn();
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|
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| labelGeometryImageFilter->Update();
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|
| |
| LabelGeometryImageFilterType::LabelsType allLabels = labelGeometryImageFilter->GetLabels();
| |
| LabelGeometryImageFilterType::LabelsType::iterator allLabelsIt;
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| std::cout << "Number of labels: " << labelGeometryImageFilter->GetNumberOfLabels() << std::endl;
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| std::cout << std::endl;
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| | |
| for( allLabelsIt = allLabels.begin(); allLabelsIt != allLabels.end(); allLabelsIt++ )
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| {
| |
| LabelGeometryImageFilterType::LabelPixelType labelValue = *allLabelsIt;
| |
| std::cout << "\tVolume: " << labelGeometryImageFilter->GetVolume(labelValue) << std::endl;
| |
| std::cout << "\tIntegrated Intensity: " << labelGeometryImageFilter->GetIntegratedIntensity(labelValue) << std::endl;
| |
| std::cout << "\tCentroid: " << labelGeometryImageFilter->GetCentroid(labelValue) << std::endl;
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| std::cout << "\tWeighted Centroid: " << labelGeometryImageFilter->GetWeightedCentroid(labelValue) << std::endl;
| |
| std::cout << "\tAxes Length: " << labelGeometryImageFilter->GetAxesLength(labelValue) << std::endl;
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| std::cout << "\tMajorAxisLength: " << labelGeometryImageFilter->GetMajorAxisLength(labelValue) << std::endl;
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| std::cout << "\tMinorAxisLength: " << labelGeometryImageFilter->GetMinorAxisLength(labelValue) << std::endl;
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| std::cout << "\tEccentricity: " << labelGeometryImageFilter->GetEccentricity(labelValue) << std::endl;
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| std::cout << "\tElongation: " << labelGeometryImageFilter->GetElongation(labelValue) << std::endl;
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| std::cout << "\tOrientation: " << labelGeometryImageFilter->GetOrientation(labelValue) << std::endl;
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| std::cout << "\tBounding box: " << labelGeometryImageFilter->GetBoundingBox(labelValue) << std::endl;
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|
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| std::cout << std::endl << std::endl;
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|
| |
| }
| |
| | |
| return EXIT_SUCCESS;
| |
| }
| |
| | |
| void CreateImage(ImageType::Pointer image)
| |
| {
| |
| // Create a black image with a white square
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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;
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| region.SetSize(size);
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| region.SetIndex(start);
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| image->SetRegions(region);
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| image->Allocate();
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| | |
| itk::ImageRegionIterator<ImageType> imageIterator(image,image->GetLargestPossibleRegion());
| |
| | |
| // Make a square
| |
| while(!imageIterator.IsAtEnd())
| |
| {
| |
| if((imageIterator.GetIndex()[0] > 5 && imageIterator.GetIndex()[0] < 10) &&
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| (imageIterator.GetIndex()[1] > 5 && imageIterator.GetIndex()[1] < 10) )
| |
| {
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| imageIterator.Set(255);
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| }
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| else
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| {
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| imageIterator.Set(0);
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| }
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| | |
| ++imageIterator;
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| }
| |
| | |
| typedef itk::ImageFileWriter< ImageType > WriterType;
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| WriterType::Pointer writer = WriterType::New();
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| writer->SetFileName("image.png");
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| writer->SetInput(image);
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| writer->Update();
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| }
| |
| | |
| </source>
| |
| | |
| {{ITKCMakeLists|LabelGeometryImageFilter}}
| |
