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| ==LabelMapOverlayImageFilter.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| | {{warning|1=The media wiki content on this page is no longer maintained.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 "itkBinaryImageToLabelMapFilter.h"
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| #include "itkImage.h"
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| #include "itkImageFileWriter.h"
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| #include "itkImageRegionIterator.h"
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| #include "itkLabelMapToLabelImageFilter.h"
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| #include "itkLabelMapOverlayImageFilter.h"
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| #include "itkRGBPixel.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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| { | |
| 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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|
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| typedef itk::RGBPixel<unsigned char> RGBPixelType;
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| typedef itk::Image<RGBPixelType> RGBImageType;
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|
| |
| typedef itk::LabelMapOverlayImageFilter<BinaryImageToLabelMapFilterType::OutputImageType, ImageType, RGBImageType>
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| LabelMapOverlayImageFilterType;
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| LabelMapOverlayImageFilterType::Pointer labelMapOverlayImageFilter = LabelMapOverlayImageFilterType::New();
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| labelMapOverlayImageFilter->SetInput(binaryImageToLabelMapFilter->GetOutput());
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| labelMapOverlayImageFilter->SetFeatureImage(image);
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| labelMapOverlayImageFilter->SetOpacity(.5);
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| labelMapOverlayImageFilter->Update();
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|
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| typedef itk::ImageFileWriter< RGBImageType > WriterType;
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| WriterType::Pointer writer = WriterType::New();
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| writer->SetFileName("output.png");
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| writer->SetInput(labelMapOverlayImageFilter->GetOutput());
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| writer->Update();
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|
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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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| // 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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|
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| ImageType::SizeType size;
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| size.Fill(100);
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|
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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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| image->FillBuffer(0);
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|
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| itk::ImageRegionIterator<ImageType> imageIterator(image,image->GetLargestPossibleRegion());
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|
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| // Make two squares
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| while(!imageIterator.IsAtEnd())
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| {
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| if((imageIterator.GetIndex()[0] > 5 && imageIterator.GetIndex()[0] < 20) &&
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| (imageIterator.GetIndex()[1] > 5 && imageIterator.GetIndex()[1] < 20) )
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| {
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| imageIterator.Set(255);
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| }
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| | |
| if((imageIterator.GetIndex()[0] > 50 && imageIterator.GetIndex()[0] < 70) &&
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| (imageIterator.GetIndex()[1] > 50 && imageIterator.GetIndex()[1] < 70) )
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| {
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| imageIterator.Set(255);
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| }
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| ++imageIterator;
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| }
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|
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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|LabelMapOverlayImageFilter}}
| |
