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| <div class="floatcenter">[[File:ITK_Examples_Baseline_ImageProcessing_TestRegionOfInterestImageFilter.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| | {{warning|1=The media wiki content on this page is no longer maintained.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. |
| ==RegionOfInterestImageFilter.cxx==
| | }} |
| <source lang="cpp">
| |
| #include "itkImage.h"
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| #include "itkImageFileReader.h"
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| #include "itkRegionOfInterestImageFilter.h"
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| #include "itkRGBPixel.h"
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|
| |
|
| #include "QuickView.h"
| | [https://itk.org/ITKExamples[ITK Sphinx Examples]] |
| | |
| #include <iostream>
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| #include <string>
| |
| | |
| int main(int argc, char *argv[])
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| {
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| if(argc < 2)
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| {
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| std::cerr << "Usage: ";
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| std::cerr << argv[0] << " inputImageFile [start] [size]" << std::endl;
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| return EXIT_FAILURE;
| |
| }
| |
| | |
| std::string filename = argv[1];
| |
| | |
| typedef itk::Image<itk::RGBPixel<unsigned char>, 2> ImageType;
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| typedef itk::ImageFileReader<ImageType> ReaderType;
| |
| | |
| ReaderType::Pointer reader = ReaderType::New();
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| reader->SetFileName(filename.c_str());
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| reader->Update();
| |
| | |
| ImageType::SizeType inSize = reader->GetOutput()->GetLargestPossibleRegion().GetSize();
| |
| | |
| typedef itk::RegionOfInterestImageFilter< ImageType, ImageType > FilterType;
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| FilterType::Pointer filter = FilterType::New();
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| | |
| ImageType::IndexType start;
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| start[0] = inSize[0]/4;
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| start[1] = inSize[1]/4;
| |
| | |
| ImageType::SizeType size;
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| size[0] = inSize[0]/4;
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| size[1] = inSize[1]/4;
| |
| | |
| if (argc > 2)
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| {
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| start.Fill(atoi(argv[2]));
| |
| }
| |
| if (argc > 3)
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| {
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| size.Fill(atoi(argv[3]));
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| }
| |
| | |
| | |
| ImageType::RegionType desiredRegion;
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| desiredRegion.SetSize(size);
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| desiredRegion.SetIndex(start);
| |
| | |
| filter->SetRegionOfInterest(desiredRegion);
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| filter->SetInput(reader->GetOutput());
| |
| | |
| QuickView viewer;
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| viewer.AddRGBImage(
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| reader->GetOutput(),true,
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| itksys::SystemTools::GetFilenameName(argv[1]));
| |
| | |
| std::stringstream desc;
| |
| desc << "RegionOfInterestImageFilter\nstart = " << start
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| << " size = " << size;
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| viewer.AddRGBImage(
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| filter->GetOutput(),
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| true,
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| desc.str());
| |
| | |
| viewer.Visualize();
| |
| | |
| return EXIT_SUCCESS;
| |
| }
| |
| </source>
| |
| | |
| {{ITKVTKCMakeLists|{{SUBPAGENAME}}}}
| |
