| _irtkHistoryEntry | Struct to keep registration parameters and associated similarities | 
| irtkAffineTransformation | Class for affine transformations | 
| irtkBaseImage | Abstract generic class for 2D or 3D images | 
| irtkBSplineFreeFormTransformation3D | Class for free form transformations based on tensor product B-splines | 
| irtkBSplineFreeFormTransformation4D | Class for free form transformations based on tensor product B-splines | 
| irtkBSplineInterpolateImageFunction | Class for B-spline interpolation of images | 
| irtkBSplineInterpolateImageFunction2D | Class for B-spline interpolation of images | 
| irtkCifstream | Class for reading compressed file streams | 
| irtkCofstream | Class for writing compressed file streams | 
| irtkComplexFunction | Complex function class | 
| irtkConjugateGradientDescentOptimizer | Generic class for conjugate gradient descent optimization of voxel-based registration | 
| irtkConvolution_1D< VoxelType > | Class for one-dimensional convolution | 
| irtkConvolution_2D< VoxelType > | Class for two-dimensional convolution | 
| irtkConvolution_3D< VoxelType > | Class for three-dimensional convolution | 
| irtkConvolutionWithPadding_1D< VoxelType > | Class for one-dimensional convolution of padded images | 
| irtkConvolutionWithPadding_2D< VoxelType > | Class for two-dimensional convolution of padded images | 
| irtkConvolutionWithPadding_3D< VoxelType > | Class for three-dimensional convolution of padded images | 
| irtkCorrelationRatioXYSimilarityMetric | Class for voxel similarity measure based on correlation ratio | 
| irtkCorrelationRatioYXSimilarityMetric | Class for voxel similarity measure based on correlation ratio | 
| irtkCrossCorrelationSimilarityMetric | Class for voxel similarity measure based on cross correlation | 
| irtkCSplineInterpolateImageFunction | Class for cubic spline interpolation of images | 
| irtkCSplineInterpolateImageFunction2D | Class for cubic spline interpolation of images | 
| irtkDemonsRegistration | Generic for image registration based on voxel similarity measures | 
| irtkDensity | Class for non-parametric density | 
| irtkDilation< VoxelType > | Class for dilation of images | 
| irtkDownhillDescentOptimizer | Generic class for downhill descent optimization of voxel-based registration | 
| irtkEigenFreeFormTransformation | Adaptive FFD class definition based on eigen parameterization | 
| irtkErosion< VoxelType > | Class for erosion of images | 
| irtkException | Exception class for the irtk library | 
| irtkFileANALYZEToImage | Class for reading images in ANALYZE file format | 
| irtkFileGIPLToImage | Class for reading images in GIPL file format | 
| irtkFileNIFTIToImage | Class for reading images in NIFTI file format | 
| irtkFilePGMToImage | Class for reading images in PGM file format | 
| irtkFileToImage | Abstract base class for any general file to image filter | 
| irtkFileVTKToImage | Class for reading images in VTK file format | 
| irtkFluidFreeFormTransformation | Class for fluid transformations | 
| irtkFreeFormTransformation | Class for free form transformations | 
| irtkFreeFormTransformation3D | Class for 3D free form transformations | 
| irtkFreeFormTransformation4D | Class for 4D free form transformations | 
| irtkGaussianBlurring< VoxelType > | Class for Gaussian blurring of images | 
| irtkGaussianBlurring4D< VoxelType > | Class for Gaussian blurring of image sequences | 
| irtkGaussianBlurringWithPadding< VoxelType > | Class for Gaussian blurring of padded images | 
| irtkGaussianInterpolateImageFunction | Class for linear interpolation of images | 
| irtkGaussianInterpolateImageFunction2D | Class for linear interpolation of images | 
| irtkGaussianNoise< VoxelType > | Class for adding Gaussian noise to images | 
| irtkGaussianNoiseWithPadding< VoxelType > | Class for adding Gaussian noise to images which are padded | 
| irtkGenericHistogramSimilarityMetric | Generic class for histogram-based voxel similarity measures | 
| irtkGenericImage< VoxelType > | Generic class for 2D or 3D images | 
| irtkGradientDescentConstrainedOptimizer | Class for gradient descent optimization of voxel-based registration which enforces hard limits on the registration parameters | 
| irtkGradientDescentOptimizer | Generic class for gradient descent optimization of voxel-based registration | 
| irtkGradientDescentSymmetricOptimizer | Generic class for gradient descent optimization of voxel-based symmetric registration | 
| irtkGradientImage< VoxelType > | Class for caluclating the gradient of an image | 
| irtkGradientImageX< VoxelType > | Class for caluclating the gradient of an image in the x-direction | 
| irtkGradientImageY< VoxelType > | Class for caluclating the gradient of an image in the y-direction | 
| irtkGradientImageZ< VoxelType > | Class for caluclating the gradient of an image in the z-direction | 
| irtkHistogram_1D | Class for 2D histograms | 
| irtkHistogram_2D | Class for 2D histograms | 
| irtkHistogramSimilarityMetric | Generic class for histogram-based voxel similarity measures | 
| irtkHistory | History class to avoid loops in registration optimization | 
| irtkHomogeneousTransformationIterator | Class for iterator for homogeneous matrix transformations | 
| irtkImageAffineRegistration | Filter for affine registration based on voxel similarity measures | 
| irtkImageAffineRegistration2D | Filter for affine registration based on voxel similarity measures | 
| irtkImageAttributes | Class which defines the attributes of the imaging geometry | 
| irtkImageEigenFreeFormRegistration | Filter for adaptive and hierarchical non-rigid registration based on voxel similarity measures and modal reparameterization | 
| irtkImageEigenFreeFormRegistration2D | Filter for adaptive and hierarchical non-rigid registration based on voxel similarity measures and modal reparameterization | 
| irtkImageFluidRegistration | Filter for non-rigid registration based on voxel similarity measures | 
| irtkImageFluidRegistration2D | Filter for non-rigid registration based on voxel similarity measures | 
| irtkImageFreeFormRegistration | Filter for non-rigid registration based on voxel similarity measures | 
| irtkImageFreeFormRegistration2D | Filter for non-rigid registration based on voxel similarity measures | 
| irtkImageFunction | Abstract base class for any general image interpolation function filter | 
| irtkImageRegistration | Generic for image registration based on voxel similarity measures | 
| irtkImageRigidRegistration | Filter for rigid registration based on voxel similarity measures | 
| irtkImageRigidRegistration2D | Filter for rigid registration based on voxel similarity measures | 
| irtkImageToFile | Abstract base class for any general image to file filter | 
| irtkImageToFileANALYZE | Class for image to ANALYZE file filter | 
| irtkImageToFileGIPL | Class for image to GIPL file filter | 
| irtkImageToFileNIFTI | Class for image to NIFTI file writer | 
| irtkImageToFilePGM | Class for image to PGM file filter | 
| irtkImageToFileVTK | Class for image to VTK file filter | 
| irtkImageToImage< VoxelType > | Abstract base class for any general image to image filter | 
| irtkImageTransformation | Filter for image transformations | 
| irtkImageTransformation2 | Filter for image transformations | 
| irtkInterpolateImageFunction | Abstract base class for any general image interpolation filter | 
| irtkJointEntropySimilarityMetric | Class for voxel similarity measure based on joint entropy | 
| irtkKappaSimilarityMetric | Class for voxel similarity measure based on the kappa measure | 
| irtkLabelConsistencySimilarityMetric | Class for voxel similarity measure based on label consistency | 
| irtkLargestConnectedComponent< VoxelType > | Class for extracting the largest connected component from a labelled image | 
| irtkLargestConnectedComponentIterative< VoxelType > | Class for extracting the largest connected component from a labelled image | 
| irtkLinearFreeFormTransformation | Class for free form transformations | 
| irtkLinearInterpolateImageFunction | Class for linear interpolation of images | 
| irtkLinearInterpolateImageFunction2D | Class for linear interpolation of images | 
| irtkMatrix | Matrix class | 
| irtkMLSimilarityMetric | Class for voxel similarity measures based on maximum likelihood | 
| irtkMotionTracking | Generic for motion tracking using image registration | 
| irtkMultiLevelFreeFormTransformation | Class for free form transformations based on tensor product B-splines | 
| irtkMultipleImageFreeFormRegistration | Filter for non-rigid registration based on voxel similarity measures | 
| irtkMultipleImageRegistration | Generic for multiple image registration based on voxel similarity measures | 
| irtkMultipleSurfaceAffineRegistration | Filter for affine registration based on surfaces | 
| irtkMultipleSurfaceRegistration | Generic for surface registration based on the ICP algorithm | 
| irtkMutualInformationSimilarityMetric | Class for voxel similarity measure based on mutual information | 
| irtkNDPointRigidRegistration | Filter for point-based affine registration | 
| irtkNearestNeighborInterpolateImageFunction | Class for nearest neighbor interpolation of images | 
| irtkNearestNeighborInterpolateImageFunction2D | Class for nearest neighbor interpolation of images | 
| irtkNIFTIHeader | The NIFTI header class | 
| irtkNoise< VoxelType > | Class for adding noise to images | 
| irtkNormalisedMutualInformationSimilarityMetric | Class for voxel similarity measure based on mutual information | 
| irtkObject | Object class | 
| irtkOptimizer | Generic class for optimization of voxel-based registration | 
| irtkPoint | Point class | 
| irtkPoint4D | 4D Point class | 
| irtkPointAffineRegistration | Filter for point-based affine registration | 
| irtkPointRegistration | Filter for point-based registration | 
| irtkPointRigidRegistration | Filter for point-based registration | 
| irtkPointSet | Point set class | 
| irtkPointToImage< VoxelType > | Class for point to image filter | 
| irtkQuaternion | Represents a quaternion | 
| irtkResampling< VoxelType > | Class for resampling of images | 
| irtkResamplingWithPadding< VoxelType > | Class for resampling of padded images | 
| irtkRicianNoise< VoxelType > | Class for adding Rician noise to images | 
| irtkRicianNoiseWithPadding< VoxelType > | Class for adding Rician noise to images which are padded | 
| irtkRigidTransformation | Class for rigid transformations | 
| irtkScalarFunction | Scalar function class | 
| irtkScalarFunctionToImage< VoxelType > | Class for scalar function to image filter | 
| irtkScalarGaussian | Scalar Gaussian function class | 
| irtkSimilarityMetric | Generic class for voxel similarity measures | 
| irtkSincInterpolateImageFunction | Class for sinc interpolation of images | 
| irtkSincInterpolateImageFunction2D | Class for sinc interpolation of images | 
| irtkSSDSimilarityMetric | Class for voxel similarity measures based on sums-of-squared differences | 
| irtkSteepestGradientDescentOptimizer | Generic class for steepest gradient descent optimization of voxel-based registration | 
| irtkSurfaceAffineRegistration | Filter for affine registration based on surfaces | 
| irtkSurfaceRegistration | Generic for surface registration based on the ICP algorithm | 
| irtkSymmetricImageFreeFormRegistration | Filter for non-rigid registration based on voxel similarity measures | 
| irtkSymmetricImageRegistration | Generic for symmetric image registration based on voxel similarity measures | 
| irtkSymmetricOptimizer | Generic class for optimization of voxel-based registration | 
| irtkTransformation | Abstract base class for general transformations | 
| irtkUniformNoise< VoxelType > | Class for adding uniform noise to images | 
| irtkUniformNoiseWithPadding< VoxelType > | Class for adding uniform noise to images which are padded | 
| irtkVector | Vector class | 
| irtkVector3D< T > | Represents a 3D vector |