ITK:在不复制数据的情况下，从图像创建样本列表。

    [96.6165]
    [833.994]
    [935.002]
    [571.885]
    [663.087]
    [496.426]
    [429.681]
    [649.809]
    [333.22]
    [425.118]
    [965.227]
    [568.819]
    [133.191]
    [547.472]
    [361.405]
    [136.599]
    [823.276]
    [802.849]
    [475.275]
    [947.74]
    [96.6244]
    [965.532]
    [690.606]
    [13.2403]
    [529.497]
    [258.332]
    [780.933]
    [135.776]
    [985.543]
    [23.581]
    [325.735]
    [623.222]
    [485.055]
    ...

    #include "itkImageToListSampleAdaptor.h"
    #include "itkImage.h"
    #include "itkRandomImageSource.h"
    #include "itkComposeImageFilter.h"
    int main(int, char *[])
    {
      using FloatImage2DType = itk::Image<float, 2>;
    
      itk::RandomImageSource<FloatImage2DType>::Pointer random;
      random = itk::RandomImageSource<FloatImage2DType>::New();
    
      random->SetMin(0.0);
      random->SetMax(1000.0);
    
      using SpacingValueType = FloatImage2DType::SpacingValueType;
      using SizeValueType = FloatImage2DType::SizeValueType;
      using PointValueType = FloatImage2DType::PointValueType;
    
      SizeValueType size[2] = { 20, 20 };
      random->SetSize(size);
    
      SpacingValueType spacing[2] = { 0.7, 2.1 };
      random->SetSpacing(spacing);
    
      PointValueType origin[2] = { 15, 400 };
      random->SetOrigin(origin);
    
      using MeasurementVectorType = itk::FixedArray<float, 1>;
      using ArrayImageType = itk::Image<MeasurementVectorType, 2>;
      using CasterType = itk::ComposeImageFilter<FloatImage2DType, ArrayImageType>;
    
      CasterType::Pointer caster = CasterType::New();
      caster->SetInput(random->GetOutput());
      caster->Update();
    
      using SampleType = itk::Statistics::ImageToListSampleAdaptor<ArrayImageType>;
      SampleType::Pointer sample = SampleType::New();
    
      sample->SetImage(caster->GetOutput());
    
      SampleType::Iterator iter = sample->Begin();
    
      while (iter != sample->End())
      {
    std::cout << iter.GetMeasurementVector() << std::endl;
    ++iter;
      }
    
      return EXIT_SUCCESS;
    }