C++实现itk读取dicom文件并转成vtk数据
时间: 2023-05-30 12:02:44 浏览: 380
以下是一个简单的示例,展示如何使用ITK和VTK库读取DICOM文件并将其转换为VTK数据:
```c++
#include <vtkSmartPointer.h>
#include <vtkDICOMImageReader.h>
#include <vtkImageData.h>
#include <vtkImageViewer2.h>
#include <itkImage.h>
#include <itkImageFileReader.h>
int main(int argc, char* argv[])
{
// 读取DICOM文件并将其转换为ITK图像
typedef itk::Image<short, 3> ImageType;
typedef itk::ImageFileReader<ImageType> ReaderType;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName("example.dcm");
reader->Update();
ImageType::Pointer itkImage = reader->GetOutput();
// 将ITK图像转换为VTK图像
vtkSmartPointer<vtkImageData> vtkImage = vtkSmartPointer<vtkImageData>::New();
vtkImage->SetDimensions(itkImage->GetLargestPossibleRegion().GetSize()[0],
itkImage->GetLargestPossibleRegion().GetSize()[1],
itkImage->GetLargestPossibleRegion().GetSize()[2]);
vtkImage->SetSpacing(itkImage->GetSpacing()[0], itkImage->GetSpacing()[1], itkImage->GetSpacing()[2]);
vtkImage->SetOrigin(itkImage->GetOrigin()[0], itkImage->GetOrigin()[1], itkImage->GetOrigin()[2]);
vtkImage->AllocateScalars(VTK_SHORT, 1);
vtkIdType count = 0;
for (int z = 0; z < itkImage->GetLargestPossibleRegion().GetSize()[2]; z++) {
for (int y = 0; y < itkImage->GetLargestPossibleRegion().GetSize()[1]; y++) {
for (int x = 0; x < itkImage->GetLargestPossibleRegion().GetSize()[0]; x++) {
vtkImage->SetScalarComponentFromDouble(x, y, z, 0, itkImage->GetPixel({ x, y, z }));
count++;
}
}
}
// 显示VTK图像
vtkSmartPointer<vtkImageViewer2> viewer = vtkSmartPointer<vtkImageViewer2>::New();
viewer->SetInputData(vtkImage);
viewer->Render();
viewer->GetRenderWindow()->SetWindowName("DICOM Viewer");
viewer->GetRenderWindow()->Render();
viewer->Start();
return EXIT_SUCCESS;
}
```
需要注意的是,这只是一个简单的示例,仅适用于读取和显示单张DICOM文件。在实际应用中,可能需要处理多个DICOM文件、根据DICOM标签进行图像处理等等。
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