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| ==BinaryImageToShapeLabelMapFilter.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| | {{warning|1=The media wiki content on this page is no longer maintained.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 "itkImageFileWriter.h"
| |
| #include "itkImageRegionIterator.h"
| |
| #include "itkBinaryImageToShapeLabelMapFilter.h"
| |
| | |
| typedef itk::Image<unsigned char, 2> ImageType;
| |
| static void CreateImage(ImageType::Pointer image);
| |
| | |
| int main(int, char *[])
| |
| { | |
| ImageType::Pointer image = ImageType::New();
| |
| CreateImage(image);
| |
| | |
| typedef itk::BinaryImageToShapeLabelMapFilter<ImageType> BinaryImageToShapeLabelMapFilterType;
| |
| BinaryImageToShapeLabelMapFilterType::Pointer binaryImageToShapeLabelMapFilter = BinaryImageToShapeLabelMapFilterType::New();
| |
| binaryImageToShapeLabelMapFilter->SetInput(image);
| |
| binaryImageToShapeLabelMapFilter->Update();
| |
| | |
| // The output of this filter is an itk::ShapeLabelMap, which contains itk::ShapeLabelObject's
| |
| std::cout << "There are " << binaryImageToShapeLabelMapFilter->GetOutput()->GetNumberOfLabelObjects() << " objects." << std::endl;
| |
| | |
| // Loop over all of the blobs
| |
| for(unsigned int i = 0; i < binaryImageToShapeLabelMapFilter->GetOutput()->GetNumberOfLabelObjects(); i++)
| |
| {
| |
| BinaryImageToShapeLabelMapFilterType::OutputImageType::LabelObjectType* labelObject = binaryImageToShapeLabelMapFilter->GetOutput()->GetNthLabelObject(i);
| |
| // Output the bounding box (an example of one possible property) of the ith region
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| std::cout << "Object " << i << " has bounding box " << labelObject->GetBoundingBox() << std::endl;
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| }
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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; | |
| 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) &&
| |
| (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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| imageIterator.Set(0);
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| }
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| | |
| ++imageIterator;
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| }
| |
| | |
| typedef itk::ImageFileWriter< ImageType > WriterType;
| |
| 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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| }
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| | |
| </source>
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| | |
| {{ITKCMakeLists|BinaryImageToShapeLabelMapFilter}}
| |
