将itk::Image转换为vtkImageData

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已于 2023-02-14 11:19:21 修改

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分类专栏： ITK 文章标签： vtkImageData itk::image

于 2018-04-11 14:43:28 首次发布

本文链接：https://blog.youkuaiyun.com/yuxing55555/article/details/79896438

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本文介绍如何使用ITK库将图像文件转换为VTK格式，并提供了一个具体的示例，展示了从读取文件到转换过程的具体实现细节。此外，还介绍了如何利用ITK将图像数据转换为NumPy数组。

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1.Convert An itk::Image To vtkImageData
官方demo：
https://itk.org/ITKExamples/src/Bridge/VtkGlue/ConvertAnitkImageTovtkImageData/Documentation.html

2.Convert an RGB itk::Image To vtkImageData
官方demo：
https://itk.org/ITKExamples/src/Bridge/VtkGlue/ConvertAnRGBitkImageTovtkImageData/Documentation.html

源码整理：

    const char * inputFileName = "../Data/imagedata/gg.jpg";
    constexpr unsigned int Dimension = 2;

    /* Convert An itk::Image To vtkImageData
    using PixelType = unsigned char;*/

    /*Convert an RGB itk::Image To vtkImageData*/
    using PixelComponentType = unsigned char;
    using PixelType = itk::RGBPixel< PixelComponentType >;

    using ImageType = itk::Image< PixelType, Dimension >;
    using ReaderType = itk::ImageFileReader< ImageType >;
    ReaderType::Pointer reader = ReaderType::New();
    reader->SetFileName( inputFileName );
    typedef itk::JPEGImageIO ImageIOType;
    ImageIOType::Pointer jpegImageIO = ImageIOType::New();
    reader->SetImageIO(jpegImageIO);


    using FilterType = itk::ImageToVTKImageFilter< ImageType >;
    FilterType::Pointer filter = FilterType::New();
    filter->SetInput( reader->GetOutput() );

     try
       {
       filter->Update();
       }
     catch( itk::ExceptionObject & error )
       {
       std::cerr << "Error: " << error << std::endl;
       return EXIT_FAILURE;
       }

    vtkImageData * myvtkImageData = filter->GetOutput();
    myvtkImageData->Print(std::cout);