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| Note: You will need an ITK version as of 5/17/2011 for this functionality.
| | {{warning|1=The media wiki content on this page is no longer maintained.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. |
| | | }} |
| ==SubtractImageFilter_Constant.cxx==
| |
| <source lang="cpp">
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| #include "itkImage.h"
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| #include "itkSubtractImageFilter.h"
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| #include "itkImageFileWriter.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::SubtractImageFilter <ImageType, ImageType, ImageType> SubtractImageFilterType;
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| SubtractImageFilterType::Pointer subtractConstantFromImageFilter = SubtractImageFilterType::New();
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| subtractConstantFromImageFilter->SetInput(image);
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| subtractConstantFromImageFilter->SetConstant2(2);
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| subtractConstantFromImageFilter->Update();
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| | |
| typedef itk::ImageFileWriter< ImageType > WriterType;
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| WriterType::Pointer writer = WriterType::New();
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| writer->SetFileName("output.png");
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| writer->SetInput(subtractConstantFromImageFilter->GetOutput());
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| writer->Update();
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| | |
| return EXIT_SUCCESS;
| |
| }
| |
| | |
| void CreateImage(ImageType::Pointer image)
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| {
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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(100);
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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,region);
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| | |
| while(!imageIterator.IsAtEnd())
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| {
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| if(imageIterator.GetIndex()[0] < 70)
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| {
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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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| }
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| | |
| }
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| | |
| </source>
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| | |
| {{ITKCMakeLists|{{SUBPAGENAME}}}}
| |
