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| <div class="floatcenter">[[File:ITK_Examples_Baseline_Morphology_TestGrayscaleDilateImageFilter.png]]</div>
| | {{warning|1=The media wiki content on this page is no longer maintained.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. |
| Dilate regions in a grayscale image using a specified kernel.
| | }} |
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| |
|
| ==GrayscaleDilateImageFilter.cxx==
| | [https://itk.org/ITKExamples[ITK Sphinx Examples]] |
| <source lang="cpp">
| |
| #include "itkImage.h"
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| #include "itkGrayscaleDilateImageFilter.h"
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| #include "itkImageFileReader.h"
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| #include "itkBinaryBallStructuringElement.h"
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| #include "itkSubtractImageFilter.h"
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| | |
| #include "itksys/SystemTools.hxx"
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| | |
| #include "QuickView.h"
| |
| | |
| int main(int argc, char *argv[])
| |
| {
| |
| if(argc < 2)
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| {
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| std::cerr << "Usage: " << std::endl;
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| std::cerr << argv[0] << " InputImageFile [radius]" << std::endl;
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| return EXIT_FAILURE;
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| }
| |
| | |
| unsigned int radius = 2;
| |
| if (argc > 2)
| |
| {
| |
| radius = atoi(argv[2]);
| |
| }
| |
| | |
| std::string inputFilename = argv[1];
| |
| | |
| typedef itk::Image<unsigned char, 2> ImageType;
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| typedef itk::ImageFileReader<ImageType> ReaderType;
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| ReaderType::Pointer reader = ReaderType::New();
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| reader->SetFileName(inputFilename);
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| | |
| typedef itk::BinaryBallStructuringElement<
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| ImageType::PixelType,2> StructuringElementType;
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| StructuringElementType structuringElement;
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| structuringElement.SetRadius(radius);
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| structuringElement.CreateStructuringElement();
| |
| | |
| typedef itk::GrayscaleDilateImageFilter <ImageType, ImageType, StructuringElementType>
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| GrayscaleDilateImageFilterType;
| |
| | |
| GrayscaleDilateImageFilterType::Pointer dilateFilter
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| = GrayscaleDilateImageFilterType::New();
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| dilateFilter->SetInput(reader->GetOutput());
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| dilateFilter->SetKernel(structuringElement);
| |
| | |
| typedef itk::SubtractImageFilter<ImageType> SubtractType;
| |
| SubtractType::Pointer diff = SubtractType::New();
| |
| diff->SetInput2(reader->GetOutput());
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| diff->SetInput1(dilateFilter->GetOutput());
| |
| | |
| QuickView viewer;
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| viewer.AddImage(
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| reader->GetOutput(),true,
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| itksys::SystemTools::GetFilenameName(inputFilename));
| |
| | |
| std::stringstream desc;
| |
| desc << "GrayscaleDilate, radius = " << radius;
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| viewer.AddImage(
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| dilateFilter->GetOutput(),
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| true,
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| desc.str());
| |
| | |
| std::stringstream desc2;
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| desc2 << "Original - GrayscaleDilate";
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| viewer.AddImage(
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| diff->GetOutput(),
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| true,
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| desc2.str());
| |
| | |
| viewer.Visualize();
| |
| | |
| return EXIT_SUCCESS;
| |
| }
| |
| </source>
| |
| | |
| {{ITKVTKCMakeLists|{{SUBPAGENAME}}}}
| |
