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| ==ShapeAttributes.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| | {{warning|1=The media wiki content on this page is no longer maintained.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">
| | }} |
| #include "itkImage.h"
| |
| #include "itkImageFileReader.h"
| |
| #include "itkConnectedComponentImageFilter.h"
| |
| #include "itkLabelImageToShapeLabelMapFilter.h"
| |
| | |
| template <typename TImage>
| |
| static void CreateImage(TImage* const image);
| |
| | |
| int main( int argc, char *argv[])
| |
| { | |
| const unsigned int Dimension = 2;
| |
| typedef unsigned char PixelType;
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| typedef unsigned short LabelType;
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| typedef itk::Image<PixelType, Dimension> InputImageType;
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| typedef itk::Image< LabelType, Dimension > OutputImageType;
| |
| typedef itk::ShapeLabelObject< LabelType, Dimension > ShapeLabelObjectType;
| |
| typedef itk::LabelMap< ShapeLabelObjectType > LabelMapType;
| |
| | |
| std::string fileName;
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| InputImageType::Pointer image;
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| if( argc < 2 )
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| {
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| image = InputImageType::New();
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| CreateImage(image.GetPointer());
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| fileName = "Generated image";
| |
| }
| |
| else
| |
| {
| |
| fileName = argv[1];
| |
| typedef itk::ImageFileReader<InputImageType> ReaderType;
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| ReaderType::Pointer reader = ReaderType::New();
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| reader->SetFileName(fileName);
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| reader->Update();
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| | |
| image = reader->GetOutput();
| |
| }
| |
| | |
| | |
| typedef itk::ConnectedComponentImageFilter <InputImageType, OutputImageType >
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| ConnectedComponentImageFilterType;
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| typedef itk::LabelImageToShapeLabelMapFilter< OutputImageType, LabelMapType>
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| I2LType;
| |
| | |
| ConnectedComponentImageFilterType::Pointer connected =
| |
| ConnectedComponentImageFilterType::New ();
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| connected->SetInput(image);
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| connected->Update();
| |
| | |
| typedef itk::LabelImageToShapeLabelMapFilter< OutputImageType, LabelMapType> I2LType;
| |
| I2LType::Pointer i2l = I2LType::New();
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| i2l->SetInput( connected->GetOutput() );
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| i2l->SetComputePerimeter(true);
| |
| i2l->Update();
| |
| | |
| LabelMapType *labelMap = i2l->GetOutput();
| |
| std::cout << "File " << "\"" << fileName << "\""
| |
| << " has " << labelMap->GetNumberOfLabelObjects() << " labels." << std::endl;
| |
| | |
| // Retrieve all attributes
| |
| for (unsigned int n = 0; n < labelMap->GetNumberOfLabelObjects(); ++n)
| |
| {
| |
| ShapeLabelObjectType *labelObject = labelMap->GetNthLabelObject(n);
| |
| std::cout << "Label: "
| |
| << itk::NumericTraits<LabelMapType::LabelType>::PrintType(labelObject->GetLabel()) << std::endl;
| |
| std::cout << " BoundingBox: "
| |
| << labelObject->GetBoundingBox() << std::endl;
| |
| std::cout << " NumberOfPixels: "
| |
| << labelObject->GetNumberOfPixels() << std::endl;
| |
| std::cout << " PhysicalSize: "
| |
| << labelObject->GetPhysicalSize() << std::endl;
| |
| std::cout << " Centroid: "
| |
| << labelObject->GetCentroid() << std::endl;
| |
| std::cout << " NumberOfPixelsOnBorder: "
| |
| << labelObject->GetNumberOfPixelsOnBorder() << std::endl;
| |
| std::cout << " PerimeterOnBorder: "
| |
| << labelObject->GetPerimeterOnBorder() << std::endl;
| |
| std::cout << " FeretDiameter: "
| |
| << labelObject->GetFeretDiameter() << std::endl;
| |
| std::cout << " PrincipalMoments: "
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| << labelObject->GetPrincipalMoments() << std::endl;
| |
| std::cout << " PrincipalAxes: "
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| << labelObject->GetPrincipalAxes() << std::endl;
| |
| std::cout << " Elongation: "
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| << labelObject->GetElongation() << std::endl;
| |
| std::cout << " Perimeter: "
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| << labelObject->GetPerimeter() << std::endl;
| |
| std::cout << " Roundness: "
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| << labelObject->GetRoundness() << std::endl;
| |
| std::cout << " EquivalentSphericalRadius: "
| |
| << labelObject->GetEquivalentSphericalRadius() << std::endl;
| |
| std::cout << " EquivalentSphericalPerimeter: "
| |
| << labelObject->GetEquivalentSphericalPerimeter() << std::endl;
| |
| std::cout << " EquivalentEllipsoidDiameter: "
| |
| << labelObject->GetEquivalentEllipsoidDiameter() << std::endl;
| |
| std::cout << " Flatness: "
| |
| << labelObject->GetFlatness() << std::endl;
| |
| std::cout << " PerimeterOnBorderRatio: "
| |
| << labelObject->GetPerimeterOnBorderRatio() << std::endl;
| |
| }
| |
| | |
| return EXIT_SUCCESS;
| |
| }
| |
| | |
| template <typename TImage>
| |
| void CreateImage(TImage* const image)
| |
| {
| |
| // Create an image with 2 objects
| |
| typename TImage::IndexType start = {{0,0}};
| |
| start[0] = 0;
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| start[1] = 0;
| |
| | |
| typename TImage::SizeType size;
| |
| unsigned int NumRows = 200;
| |
| unsigned int NumCols = 300;
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| size[0] = NumRows;
| |
| size[1] = NumCols;
| |
| | |
| typename TImage::RegionType region(start, size); | |
| | |
| image->SetRegions(region);
| |
| image->Allocate();
| |
| | |
| // Make a square
| |
| for(typename TImage::IndexValueType r = 20; r < 80; ++r)
| |
| {
| |
| for(typename TImage::IndexValueType c = 30; c < 100; ++c)
| |
| {
| |
| typename TImage::IndexType pixelIndex = {{r,c}};
| |
| | |
| image->SetPixel(pixelIndex, 255);
| |
| }
| |
| }
| |
| | |
| // Make another square
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| for(typename TImage::IndexValueType r = 100; r < 130; ++r)
| |
| {
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| for(typename TImage::IndexValueType c = 115; c < 160; ++c)
| |
| {
| |
| typename TImage::IndexType pixelIndex = {{r,c}};
| |
| | |
| image->SetPixel(pixelIndex, 255);
| |
| }
| |
| }
| |
| }
| |
| </source>
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| | |
| {{ITKCMakeLists|{{SUBPAGENAME}}}}
| |
