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| ==WidthHeight.cxx== | | {{warning|1=The media wiki content on this page is no longer maintained.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"
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| #include "itkImageFileReader.h"
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|
| |
|
| int main(int argc, char *argv[])
| | [https://itk.org/ITKExamples[ITK Sphinx Examples]] |
| {
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| // Verify command line arguments
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| 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" << std::endl;
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| return EXIT_FAILURE;
| |
| }
| |
| | |
| typedef itk::Image<float, 2> ImageType;
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| typedef itk::ImageFileReader<ImageType> ReaderType;
| |
| | |
| ReaderType::Pointer reader = ReaderType::New();
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| reader->SetFileName( argv[1] );
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| reader->Update();
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| | |
| std::cout << reader->GetOutput()->GetLargestPossibleRegion().GetSize()[0] << " "
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| << reader->GetOutput()->GetLargestPossibleRegion().GetSize()[1] << std::endl;
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| | |
| // An example image had w = 200 and h = 100 (it is wider than it is tall). The above output
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| // 200 100
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| // so w = GetSize()[0]
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| // and h = GetSize()[1]
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| | |
| // A pixel inside the region
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| itk::Index<2> indexInside;
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| indexInside[0] = 150;
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| indexInside[1] = 50;
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| std::cout << reader->GetOutput()->GetLargestPossibleRegion().IsInside(indexInside) << std::endl;
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| | |
| // A pixel outside the region
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| itk::Index<2> indexOutside;
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| indexOutside[0] = 50;
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| indexOutside[1] = 150;
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| std::cout << reader->GetOutput()->GetLargestPossibleRegion().IsInside(indexOutside) << std::endl;
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| | |
| // This means that the [0] component of the index is referencing the left to right (x) value
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| // and the [1] component of Index is referencing the top to bottom (y) value
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| | |
| return EXIT_SUCCESS;
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| }
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| </source>
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| | |
| {{ITKCMakeLists|WidthHeight}}
| |
