C++ Pointer::Update方法代码示例

int main(int argc,char ** argv){

	typedef itk::Image<float,3> ImageType;
	typedef itk::Image<float,2> SliceType;

	typedef itk::ImageFileReader<ImageType> ReaderType;
	typedef itk::ImageFileWriter<SliceType> WriterType;

	typedef itk::BoundedReciprocalImageFilter<ImageType,ImageType> BoundedReciprocalType;
	BoundedReciprocalType::Pointer boundedReciprocal = BoundedReciprocalType::New();


	typedef ttt::AdvectiveDiffusion2DIterationImageFilter<SliceType,SliceType> AdvectionDiffusion2DIterationType;

	ReaderType::Pointer reader = ReaderType::New();
	reader->SetFileName(argv[1]);
	reader->UpdateOutputInformation();


	typedef itk::ExtractImageFilter<ImageType,SliceType> ExtractorType;

	ExtractorType::Pointer extractor = ExtractorType::New();

	ImageType::RegionType extractionRegion = reader->GetOutput()->GetLargestPossibleRegion();
	extractionRegion.SetSize(2,0);

	boundedReciprocal->SetInput(reader->GetOutput());
	extractor->SetInput(boundedReciprocal->GetOutput());
	extractor->SetExtractionRegion(extractionRegion);
	extractor->SetDirectionCollapseToIdentity();

	AdvectionDiffusion2DIterationType::Pointer advectionDiffusionIteration =AdvectionDiffusion2DIterationType::New();

	advectionDiffusionIteration->SetInput(extractor->GetOutput());
	advectionDiffusionIteration->SetNumberOfThreads(1.0);


	WriterType::Pointer sliceWriter = WriterType::New();
	sliceWriter->SetInput(extractor->GetOutput());
	sliceWriter->SetFileName(argv[2]);
	sliceWriter->Update();


	WriterType::Pointer writer = WriterType::New();
	writer->SetFileName(argv[3]);

	writer->SetInput(advectionDiffusionIteration->GetOutput());
	writer->Update();

}

void writeMesh(MeshType* mesh, const char* filename) {
    typedef itk::MeshFileWriter<MeshType> WriterType;
    WriterType::Pointer writer = WriterType::New();
    writer->SetInput(mesh);
    writer->SetFileName(filename);
    writer->Update();
}

void writeBinaryImage(BinaryImageType* image, const char* filename) {
    typedef itk::ImageFileWriter<BinaryImageType> WriterType;
    WriterType::Pointer writer = WriterType::New();
    writer->SetInput(image);
    writer->SetFileName(filename);
    writer->Update();
}

void saveFile(char* filename, ImageType* image)
{
    WriterType::Pointer writer = WriterType::New();
    writer->SetFileName(filename);
    writer->SetInput(image);
    writer->Update();
}

void NRRDTools::saveNRRDFile(const cleaver::FloatField *field, const std::string &name) {
  auto dims = field->dataBounds().size;
  ImageType::Pointer img = ImageType::New();
  itk::Index<3> start; start.Fill(0);
  ImageType::SizeType size;
  size[0] = static_cast<size_t>(dims[0]);
  size[1] = static_cast<size_t>(dims[1]);
  size[2] = static_cast<size_t>(dims[2]);
  ImageType::RegionType region(start, size);
  img->SetRegions(region);
  img->Allocate();
  img->FillBuffer(0);
  for (size_t i = 0; i < dims[0]; i++) {
    for (size_t j = 0; j < dims[1]; j++) {
      for (size_t k = 0; k < dims[2]; k++) {
        ImageType::IndexType pixelIndex;
        pixelIndex[0] = i;
        pixelIndex[1] = j;
        pixelIndex[2] = k;
        auto data = ((cleaver::FloatField*)field)->data();
        img->SetPixel(pixelIndex, data[i + size[0] * j + size[0] * size[1] * k]);
      }
    }
  }
  WriterType::Pointer write = WriterType::New();
  write->SetFileName(name + ((name.find_first_of(".nrrd") == std::string::npos) ? ".nrrd" : ""));
  write->SetInput(img);
  write->Update();
}

void writeLabelImage( LabeledImageType::Pointer image, const std::string &fname) {

	try {
		ColorMapFilterType::Pointer colormapper = ColorMapFilterType::New();
		colormapper->SetInput( image );
		colormapper->Update();
		RGBImageType::ConstPointer colorImage = colormapper->GetOutput();
		colormapper = NULL;

		typedef itk::Image< RGBPixelType, 2 > OutputImage2DType;
		typedef itk::ImageSeriesWriter< RGBImageType, OutputImage2DType > WriterType;
		WriterType::Pointer writer = WriterType::New();
		typedef itk::NumericSeriesFileNames NamesGeneratorType;
		NamesGeneratorType::Pointer nameGenerator = NamesGeneratorType::New();

		nameGenerator->SetSeriesFormat( fname.c_str() );
		nameGenerator->SetStartIndex( 1 );
		nameGenerator->SetEndIndex( colorImage->GetBufferedRegion().GetSize()[2] );
		writer->SetFileNames( nameGenerator->GetFileNames() );
		writer->SetInput( colorImage );
		writer->Update();

	} catch( itk::ExceptionObject & exp ) {
		std::cerr << "Exception caught !" << std::endl;
		std::cerr << exp << std::endl;
	}

}

void LidarSegmentationWidget::on_actionSaveSegmentation_triggered()
{
  // Ask the user for a filename to save the segment mask image to

  QString fileName = QFileDialog::getSaveFileName(this,
    "Save Segment Mask Image", ".", "PNG Files (*.png)");

  if(fileName.isEmpty())
  {
    return;
  }
  // Write the file (object is white)
  typedef  itk::ImageFileWriter<Mask> WriterType;
  WriterType::Pointer writer = WriterType::New();
  writer->SetFileName(fileName.toStdString());
  writer->SetInput(this->GraphCut.GetSegmentMask());
  writer->Update();
  
  /*
  // Write the inverted file (object is black)
  Mask::Pointer inverted = Mask::New();
  Helpers::InvertBinaryImage(this->GraphCut.GetSegmentMask(), inverted);
  
  //typedef  itk::ImageFileWriter<ImageAdaptorType> WriterType;
  typedef  itk::ImageFileWriter<Mask> WriterType;
  WriterType::Pointer writer = WriterType::New();
  writer->SetFileName(fileName.toStdString());
  writer->SetInput(inverted);
  writer->Update();
  */
}

void InnerWidget::actionSave_Segmentation_triggered()
{
  // Ask the user for a filename to save the segment mask image to

  QString fileName = QFileDialog::getSaveFileName(this,
    tr("Save Segment Mask Image"), "/home/doriad", tr("Image Files (*.png *.bmp)"));
/*
  // Convert the image from a 1D vector image to an unsigned char image
  typedef itk::CastImageFilter< GrayscaleImageType,
                                itk::Image<itk::CovariantVector<unsigned char, 1>, 2 > > CastFilterType;
  CastFilterType::Pointer castFilter = CastFilterType::New();
  castFilter->SetInput(this->GraphCut->GetSegmentMask());

  typedef itk::NthElementImageAdaptor< itk::Image<itk:: CovariantVector<unsigned char, 1>, 2 >,
    unsigned char> ImageAdaptorType;

  ImageAdaptorType::Pointer adaptor = ImageAdaptorType::New();
  adaptor->SelectNthElement(0);
  adaptor->SetImage(castFilter->GetOutput());
*/
  // Write the file
  //typedef  itk::ImageFileWriter< ImageAdaptorType > WriterType;
  typedef  itk::ImageFileWriter<Mask> WriterType;
  WriterType::Pointer writer = WriterType::New();
  writer->SetFileName(fileName.toStdString());
  //writer->SetInput(adaptor);
  writer->SetInput(this->GraphCut->GetSegmentMask());
  writer->Update();

}

int main(int argc, char *argv[])
{
  // Verify arguments
  if(argc < 6)
    {
    std::cerr << "Required: outputFilename sizeX sizeY components value" << std::endl;
    return EXIT_FAILURE;
    }

  // Parse arguments
  std::string outputFilename = argv[1];

  std::stringstream ss;
  ss << argv[2] << " " << argv[3] << " " << argv[4];

  itk::Size<2> size = {{0,0}};
  unsigned int components = 0;
  float value = 0.0f;
  ss >> size[0] >> size[1] >> components >> value;


  // Output arguments
  std::cout << "outputFilename " << outputFilename << std::endl;
  std::cout << "size " << size << std::endl;
  std::cout << "value " << value << std::endl;

  ImageType::Pointer image = ImageType::New();
  itk::Index<2> index = {{0,0}};

  itk::ImageRegion<2> region(index, size);

  image->SetRegions(region);
  image->SetNumberOfComponentsPerPixel(components);
  image->Allocate();

  typename itk::ImageRegionIterator<ImageType> imageIterator(image, image->GetLargestPossibleRegion());

  ImageType::PixelType pixel;
  pixel.SetSize(components);
  pixel.Fill(value);
  
  while(!imageIterator.IsAtEnd())
    {
    imageIterator.Set(pixel);

    ++imageIterator;
    }

  // Write the result
  typedef  itk::ImageFileWriter<ImageType> WriterType;
  WriterType::Pointer writer = WriterType::New();
  writer->SetFileName(outputFilename);
  writer->SetInput(image);
  writer->Update();

  return EXIT_SUCCESS;
}

int main(int argc, char** argv) {
	if(argc != 3){
		std::cout << "Usage: Test2DImage inputFilename outputFilename"; 
		return 1;
	}
	typedef signed int InputPixelType;
	const unsigned int Dimension = 2;
	typedef itk::Image<InputPixelType, Dimension> InputImageType;
	typedef itk::RGBPixel<unsigned char> RGBPixelType;
	typedef itk::Image<RGBPixelType, 2> RGBImageType;
	typedef itk::ImageFileReader<InputImageType> ReaderType;
	typedef itk::ImageFileWriter<RGBImageType> WriterType;
	typedef itk::GDCMImageIO ImageIOType;
	typedef itk::GradientAnisotropicDiffusionImageFilter<InputImageType,
	InputImageType> DiffusionFilterType;
	typedef itk::GradientMagnitudeImageFilter<InputImageType, InputImageType>
			GradientMagnitudeFilterType;
	typedef itk::Functor::ScalarToRGBPixelFunctor<int> ColorMapFunctorType;
	typedef itk::UnaryFunctorImageFilter<InputImageType,
	RGBImageType, ColorMapFunctorType> ColorMapFilterType;
	typedef itk::JPEGImageIO JImageIOType;

	ReaderType::Pointer reader = ReaderType::New();
	WriterType::Pointer writer = WriterType::New();
	ImageIOType::Pointer GDCMImageIO = ImageIOType::New();
	JImageIOType::Pointer JPEGImageIO = JImageIOType::New();
	ColorMapFilterType::Pointer colormapper = ColorMapFilterType::New();

	reader->SetFileName(argv[1]);
	reader->SetImageIO(GDCMImageIO);

	try {
		reader->Update();
	}
	catch (itk::ExceptionObject & e) {
		std::cerr << "exception in file reader " << std::endl;
		std::cerr << e << std::endl;
		return 1;
	}
	DiffusionFilterType::Pointer diffusion = DiffusionFilterType::New();
	diffusion->SetNumberOfIterations(1);
	diffusion->SetConductanceParameter(4);
	diffusion->SetTimeStep(0.125);
	GradientMagnitudeFilterType::Pointer gradient = GradientMagnitudeFilterType::New();
	diffusion->SetInput(reader->GetOutput());
	gradient->SetInput(diffusion->GetOutput());
	gradient->Update();
	MyWatershedSegmenter<InputImageType> watershed(gradient->GetOutput());
	watershed.buildLowerCompleteImage();
	watershed.buildLabeledImage();
	colormapper->SetInput(watershed.returnFinalImage());
	writer->SetInput(colormapper->GetOutput());
	writer->UseInputMetaDataDictionaryOff();
	writer->SetImageIO(JPEGImageIO);
	writer->SetFileName(argv[2]);
	writer->Update();
}

int main( int argc, char * argv[] )
{
  if( argc < 7 )
    {
    std::cerr << "Usage: " << std::endl;
    std::cerr << argv[0] << std::endl;
    std::cerr << " <InputImage> <OutputImage> <LowerThreshold>";
    std::cerr << " <UpperThreshold> <OutsideValue> <InsideValue>"
              << std::endl;
    return EXIT_FAILURE;
    }

  const unsigned int Dimension = 2;
  typedef  unsigned char  PixelType;

  const char * InputImage = argv[1];
  const char * OutputImage = argv[2];

  const PixelType LowerThreshold = static_cast<PixelType>(atoi( argv[3] ) );
  const PixelType UpperThreshold = static_cast<PixelType>(atoi( argv[4] ) );
  const PixelType OutsideValue = static_cast<PixelType>(atoi( argv[5] ) );
  const PixelType InsideValue = static_cast<PixelType>(atoi( argv[6] ) );

  typedef itk::Image< PixelType, Dimension >  ImageType;

  typedef itk::ImageFileReader< ImageType > ReaderType;
  ReaderType::Pointer reader = ReaderType::New();
  reader->SetFileName( InputImage );

  typedef itk::BinaryThresholdImageFilter< ImageType, ImageType >
    FilterType;
  FilterType::Pointer filter = FilterType::New();
  filter->SetInput( reader->GetOutput() );
  filter->SetLowerThreshold( LowerThreshold );
  filter->SetUpperThreshold( UpperThreshold );
  filter->SetOutsideValue( OutsideValue );
  filter->SetInsideValue( InsideValue );

  typedef itk::ImageFileWriter< ImageType >  WriterType;
  WriterType::Pointer writer = WriterType::New();
  writer->SetFileName( OutputImage );
  writer->SetInput( filter->GetOutput() );

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

  return EXIT_SUCCESS;
}

void MriWatcherGUI::Combine()
{
  QString m_filename = QFileDialog::getSaveFileName(
      this,
      tr("Save As"),
      QDir::currentPath(),
      tr("*.gipl *.hdr *.mha *.mhd") );

  if( m_filename.isEmpty() )
    {
    g_combine->setDown(false);
    return;
    }

  if( m_filename.lastIndexOf(".") == -1 )
    {
    m_filename += ".gipl";
    }

  int xc; int yc; int zc;
  m_imagemanager.GetCrosshair(&xc, &yc, &zc);

  ImageType::Pointer m_newimage =
    CreateNewImage(m_imagesize[0], m_imagesize[1], m_numberofimages, m_imagespacing[0], m_imagespacing[1],
                   m_imagespacing[2]);
  IteratorType m_itnewimage(m_newimage, m_newimage->GetLargestPossibleRegion() );
  m_itnewimage.GoToBegin();
  for( int z = 0; z < m_numberofimages; z++ )
    {
    ImageType::Pointer m_image = m_imageframelist[z]->g_imageframe->GetInputImage2();
    IteratorType       m_itimage(m_image, m_image->GetLargestPossibleRegion() );
    m_itimage.GoToBegin();
    for( unsigned int i = 0; i < zc * m_imagesize[0] * m_imagesize[1]; i++ )
      {
      ++m_itimage;
      }
    for( unsigned int y = 0; y < m_imagesize[0]; y++ )
      {
      for( unsigned int x = 0; x < m_imagesize[1]; x++ )
        {
        m_itnewimage.Set(m_itimage.Get() );
        ++m_itimage;
        ++m_itnewimage;
        }
      }
    }

  WriterType::Pointer writer = WriterType::New();
  writer->SetFileName(m_filename.toLatin1().constData() );
  writer->SetInput(m_newimage);
  writer->Update();

  g_combine->setDown(false);
}

int main(int argc, char* argv[]) 
{
	if( argc < 2 )
	{
		std::cerr<<argv[0]<<" InputImage"<<std::endl;
		return EXIT_FAILURE;
	}

	typedef RGBImageType InputImageType;
	typedef RGBImageType2D OutputImageType;

	typedef itk::ImageFileReader< InputImageType >  ReaderType;
	//typedef itk::ImageFileReader< UCharImageType >  ReaderType;
	ReaderType::Pointer reader = ReaderType::New();
	reader->SetFileName( argv[1] );
	std::cout<<argv[1]<<std::endl;
	try
	{
		reader->Update();
	}
	catch( itk::ExceptionObject & excep )
	{
		std::cerr << "Exception caught !" << std::endl;
		std::cerr << excep << std::endl;
	}
	InputImageType::Pointer in = reader->GetOutput();

	Focus *f = new Focus( in );
	f->SetRadius(10);
	//std::vector<float> vars = f->FindVariance(1.93,4.57,300);
	f->MakeVarianceImage();

	//OutputImageType::Pointer p = f->MakeProjection();
	OutputImageType::Pointer p = f->MakeProjectionColor();

	delete f;

	typedef itk::ImageFileWriter< OutputImageType >  WriterType;
	WriterType::Pointer writer = WriterType::New();
	writer->SetFileName( "best.tif" );
	writer->SetInput( p );
	try
	{
		writer->Update();
	}
	catch( itk::ExceptionObject & excep )
	{
		std::cerr << "Exception caught !" << std::endl;
		std::cerr << excep << std::endl;
	}

	std::cerr << "PRESS ENTER TO EXIT\n";
	getchar();
}

int main (int argc, char *argv[])
{
  // Verify arguments
  if(argc != 3)
    {
    std::cerr << "Required arguments: InputFileName OutputFileName" << std::endl;
    return EXIT_FAILURE;
    }

  // Parse arguments
  std::string inputFileName = argv[1];
  std::string outputFileName = argv[2];

  // Output arguments
  std::cout << "Input image: " << inputFileName << std::endl;
  std::cout << "Output image: " << outputFileName << std::endl;
  
  //typedef itk::Image<unsigned char, 2> ImageType;
  
  typedef itk::RGBPixel<float> RGBFloatPixelType; // We must use float pixels so that the averaging operation does not overflow
  typedef itk::Image<RGBFloatPixelType> RGBFloatImageType;
  
  typedef itk::ImageFileReader<RGBFloatImageType> ReaderType;
  ReaderType::Pointer reader = ReaderType::New();
  reader->SetFileName(inputFileName);
  reader->Update();
  
  SmallHoleFiller<RGBFloatImageType> smallHoleFiller;
  smallHoleFiller.SetImage(reader->GetOutput());
  
  RGBFloatImageType::PixelType green;
  green.SetRed(0);
  green.SetGreen(255);
  green.SetBlue(0);
  smallHoleFiller.SetHolePixel(green);

  smallHoleFiller.GenerateMaskFromImage();
  smallHoleFiller.Fill();
  
  typedef itk::RGBPixel<unsigned char> RGBUCharPixelType;
  typedef itk::Image<RGBUCharPixelType> RGBUCharImageType;
  typedef itk::CastImageFilter<RGBFloatImageType, RGBUCharImageType> CastFilterType;
  CastFilterType::Pointer castFilter = CastFilterType::New();
  castFilter->SetInput(smallHoleFiller.GetOutput());
  castFilter->Update();
  
  typedef  itk::ImageFileWriter< RGBUCharImageType  > WriterType;
  WriterType::Pointer writer = WriterType::New();
  writer->SetFileName(outputFileName);
  writer->SetInput(castFilter->GetOutput());
  writer->Update();
    
  return EXIT_SUCCESS;
}

// ------------------------------------------------------------------------
void DicomParser::writeSeries(const DicomSeries &series, const QString &outputFolder)
{
	// create the series name
	QString name = QString::fromStdString(series.description);
	name.replace(" ","_");
	name += "_" + QString::number(series.images.front().seriesNumber);
	name += ".nrrd";
	
	QDir path(outputFolder);
	QString fullPath = path.absoluteFilePath(name);
	

	std::vector<DicomImage> images = series.images;
	std::sort(images.begin(), images.end());

	// write and build the output images 
	typedef itk::Image<unsigned short, 3> ImageType;
	typedef itk::Image<unsigned short, 4> OutputImageType;
	typedef itk::ImageFileReader<ImageType> ReaderType;
	typedef itk::JoinSeriesImageFilter<ImageType, OutputImageType> JoinerType;

	JoinerType::Pointer joiner = JoinerType::New();
	ImageType::Pointer orig;
	for(unsigned int i = 0; i < images.size(); i++)
	{
		ReaderType::Pointer reader = ReaderType::New();
		reader->SetFileName(images[i].filename);
		std::cout << images[i].filename << std::endl;
		reader->SetImageIO(itk::GDCMImageIO::New());
		reader->Update();

		ImageType::Pointer im = reader->GetOutput();
		if(i == 0) orig = im;


		im->SetOrigin(orig->GetOrigin());
		im->SetDirection(orig->GetDirection());
		im->SetSpacing(orig->GetSpacing());

		joiner->SetInput(i, reader->GetOutput());
	}


	std::cout << joiner->GetOutput()->GetDirection() << std::endl;


	typedef itk::ImageFileWriter<OutputImageType> WriterType;
	WriterType::Pointer writer = WriterType::New();
	writer->SetInput(joiner->GetOutput());
	writer->SetFileName(fullPath.toStdString());
	writer->SetImageIO(itk::NrrdImageIO::New());
	writer->Update();

}