VTK读取DCM保存成png_vtk dcm 保存

VTK读取DCM保存成png

#include <vtkSmartPointer.h>
#include <vtkImageViewer2.h>
#include <vtkDICOMImageReader.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkPNGWriter.h>
#include <vtkImageCast.h>

#include <vtkAutoInit.h>
VTK_MODULE_INIT(vtkRenderingOpenGL2)

int main(int argc, char* argv[])
{
    // Verify input arguments
    //if (argc != 2)
    //{
    //  std::cout << "Usage: " << argv[0]
    //      << " Filename(.img)" << std::endl;
    //  return EXIT_FAILURE;
    //}

    std::string inputFilename = "/home/tiger/dicom/data/test/004/CT_5fd5cc06429eb17f.dcm";

    // Read all the DICOM files in the specified directory.
    vtkSmartPointer<vtkDICOMImageReader> reader =
        vtkSmartPointer<vtkDICOMImageReader>::New();
    reader->SetFileName(inputFilename.c_str());
    reader->Update();

    // Visualize
    vtkSmartPointer<vtkImageViewer2> imageViewer =
        vtkSmartPointer<vtkImageViewer2>::New();
    imageViewer->SetInputConnection(reader->GetOutputPort());
    vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
        vtkSmartPointer<vtkRenderWindowInteractor>::New();
    imageViewer->SetupInteractor(renderWindowInteractor);
    imageViewer->Render();
    imageViewer->GetRenderer()->ResetCamera();
    imageViewer->Render();

    vtkSmartPointer<vtkImageCast> castFilter =
        vtkSmartPointer<vtkImageCast>::New();
    castFilter->SetOutputScalarTypeToUnsignedShort();
    castFilter->SetInputConnection(reader->GetOutputPort());
    castFilter->Update();

    vtkSmartPointer<vtkPNGWriter> writer =
        vtkSmartPointer<vtkPNGWriter>::New();
    writer->SetFileName("out.png");
    writer->SetInputConnection(castFilter->GetOutputPort());
    writer->Write();

    renderWindowInteractor->Start();

    return EXIT_SUCCESS;
}
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// CMakeLists.txt
cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

project(AnimateActors)

find_package(Qt5 REQUIRED Widgets)

# opencv
find_package(OpenCV REQUIRED )

find_package(VTK COMPONENTS
  vtkCommonColor
  vtkCommonCore
  vtkCommonDataModel
  vtkFiltersSources
  vtkInteractionStyle
  vtkRenderingContextOpenGL2
  vtkRenderingCore

  vtkIOExport
  vtkInteractionImage

  vtkRenderingFreeType
  vtkRenderingGL2PSOpenGL2
  vtkRenderingOpenGL2
  QUIET
)

if (NOT VTK_FOUND)
  message("Skipping AnimateActors: ${VTK_NOT_FOUND_MESSAGE}")
  return ()
endif()
message (STATUS "VTK_VERSION: ${VTK_VERSION}")
if (VTK_VERSION VERSION_LESS "8.90.0")
  # old system
  include(${VTK_USE_FILE})
  add_executable(AnimateActors MACOSX_BUNDLE AnimateActors.cxx )
  target_link_libraries(AnimateActors PRIVATE ${VTK_LIBRARIES} ${OpenCV_LIBS} Qt5::Widgets)
else ()
  # include all components
  add_executable(AnimateActors MACOSX_BUNDLE AnimateActors.cxx )
  target_link_libraries(AnimateActors PRIVATE ${VTK_LIBRARIES} ${OpenCV_LIBS} Qt5::Widgets)
  # vtk_module_autoinit is needed
  vtk_module_autoinit(
    TARGETS AnimateActors
    MODULES ${VTK_LIBRARIES}
    )
endif ()

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