C++ (Cpp) Pointer::SetNumberOfComponentsPerPixel Examples

Example #1

File: TestITKHelpers.cpp Project: yiweicheng/ITKHelpers

void TestExtractChannels()
{
  typedef itk::VectorImage<float, 2> VectorImageType;
  VectorImageType::Pointer image = VectorImageType::New();

  itk::Index<2> corner = {{0,0}};
  itk::Size<2> size = {{100,100}};
  itk::ImageRegion<2> region(corner, size);

  image->SetRegions(region);
  image->SetNumberOfComponentsPerPixel(3);
  image->Allocate();

  // Extract the first two channels
  std::vector<unsigned int> channels;
  channels.push_back(0);
  channels.push_back(1);

  typedef itk::VectorImage<float, 2> FloatScalarImageType;
  FloatScalarImageType::Pointer floatScalarImage = FloatScalarImageType::New();
  ITKHelpers::ExtractChannels(image.GetPointer(), channels, floatScalarImage.GetPointer());

  typedef itk::VectorImage<unsigned char, 2> UnsignedCharScalarImageType;
  UnsignedCharScalarImageType::Pointer unsignedCharScalarImage = UnsignedCharScalarImageType::New();
  ITKHelpers::ExtractChannels(image.GetPointer(), channels, unsignedCharScalarImage.GetPointer());
}

Example #2

File: TestITKHelpers.cpp Project: yiweicheng/ITKHelpers

void TestExtractChannel()
{
  typedef itk::VectorImage<float, 2> VectorImageType;
  VectorImageType::Pointer image = VectorImageType::New();

  itk::Index<2> corner = {{0,0}};
  itk::Size<2> size = {{100,100}};
  itk::ImageRegion<2> region(corner, size);

  image->SetRegions(region);
  image->SetNumberOfComponentsPerPixel(2);
  image->Allocate();

  typedef itk::Image<float, 2> FloatScalarImageType;
  FloatScalarImageType::Pointer floatScalarImage = FloatScalarImageType::New();
  ITKHelpers::ExtractChannel(image.GetPointer(), 0, floatScalarImage.GetPointer());

  typedef itk::Image<unsigned char, 2> UnsignedCharScalarImageType;
  UnsignedCharScalarImageType::Pointer unsignedCharScalarImage = UnsignedCharScalarImageType::New();
  ITKHelpers::ExtractChannel(image.GetPointer(), 0, unsignedCharScalarImage.GetPointer());
}

Example #3

File: TestITKHelpers.cpp Project: daviddoria/ITKHelpers

bool TestExtractChannel()
{
  // VectorImage
  {
  typedef itk::VectorImage<float, 2> VectorImageType;
  VectorImageType::Pointer image = VectorImageType::New();

  itk::Index<2> corner = {{0,0}};
  itk::Size<2> size = {{100,100}};
  itk::ImageRegion<2> region(corner, size);

  image->SetRegions(region);
  image->SetNumberOfComponentsPerPixel(2);
  image->Allocate();

  typedef itk::Image<float, 2> FloatScalarImageType;
  FloatScalarImageType::Pointer floatScalarImage = FloatScalarImageType::New();
  ITKHelpers::ExtractChannel(image.GetPointer(), 0, floatScalarImage.GetPointer());

  typedef itk::Image<unsigned char, 2> UnsignedCharScalarImageType;
  UnsignedCharScalarImageType::Pointer unsignedCharScalarImage = UnsignedCharScalarImageType::New();
  ITKHelpers::ExtractChannel(image.GetPointer(), 0, unsignedCharScalarImage.GetPointer());
  }

  // VectorImage different output type
  {
  typedef itk::VectorImage<float, 2> VectorImageType;
  VectorImageType::Pointer image = VectorImageType::New();

  itk::Index<2> corner = {{0,0}};
  itk::Size<2> size = {{100,100}};
  itk::ImageRegion<2> region(corner, size);

  image->SetRegions(region);
  image->SetNumberOfComponentsPerPixel(2);
  image->Allocate();

  typedef itk::Image<unsigned char, 2> UnsignedCharScalarImageType;
  UnsignedCharScalarImageType::Pointer unsignedCharScalarImage = UnsignedCharScalarImageType::New();
  ITKHelpers::ExtractChannel(image.GetPointer(), 0, unsignedCharScalarImage.GetPointer());
  }

  // Scalar Image
  {
  typedef itk::Image<float, 2> VectorImageType;
  VectorImageType::Pointer image = VectorImageType::New();

  itk::Index<2> corner = {{0,0}};
  itk::Size<2> size = {{100,100}};
  itk::ImageRegion<2> region(corner, size);

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

  typedef itk::Image<float, 2> FloatScalarImageType;
  FloatScalarImageType::Pointer floatScalarImage = FloatScalarImageType::New();
  ITKHelpers::ExtractChannel(image.GetPointer(), 0, floatScalarImage.GetPointer());

  typedef itk::Image<unsigned char, 2> UnsignedCharScalarImageType;
  UnsignedCharScalarImageType::Pointer unsignedCharScalarImage = UnsignedCharScalarImageType::New();
  ITKHelpers::ExtractChannel(image.GetPointer(), 0, unsignedCharScalarImage.GetPointer());
  }

  // Image<CovariantVector>
  {
  typedef itk::Image<itk::CovariantVector<float, 3>, 2> VectorImageType;
  VectorImageType::Pointer image = VectorImageType::New();

  itk::Index<2> corner = {{0,0}};
  itk::Size<2> size = {{100,100}};
  itk::ImageRegion<2> region(corner, size);

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

  typedef itk::Image<float, 2> FloatScalarImageType;
  FloatScalarImageType::Pointer floatScalarImage = FloatScalarImageType::New();
  ITKHelpers::ExtractChannel(image.GetPointer(), 0, floatScalarImage.GetPointer());
  }

  // Image<Vector>
  {
  typedef itk::Image<itk::Vector<float, 3>, 2> VectorImageType;
  VectorImageType::Pointer image = VectorImageType::New();

  itk::Index<2> corner = {{0,0}};
  itk::Size<2> size = {{100,100}};
  itk::ImageRegion<2> region(corner, size);

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

  typedef itk::Image<float, 2> FloatScalarImageType;
  FloatScalarImageType::Pointer floatScalarImage = FloatScalarImageType::New();
  ITKHelpers::ExtractChannel(image.GetPointer(), 0, floatScalarImage.GetPointer());
  }

  return true;
}