ITK/Examples
These are fully independent, compilable examples. There is significant overlap in the examples, but they are each intended to illustrate a different concept and be fully stand alone compilable. Please add examples in your areas of expertise! You can checkout the entire set of examples from this repository: http://gitorious.org/itkwikiexamples/itkwikiexamples
git clone git://gitorious.org/itkwikiexamples/itkwikiexamples.git ITKWikiExamples
About the Examples
ItkVtkGlue
ITK and VTK are very separate toolkits - ITK for image processing and VTK for data visualization. It is often convenient to use the two together - namely, to display an ITK image on the screen. The ItkVtkGlue kit serves exactly this purpose. Also provided inside ItkVtkGlue is a QuickView class to allow a 2 line display of an ITK image.
If you download the entire ITK Wiki Examples Collection, the ItkVtkGlue directory will be included and configured. If you wish to just build a few examples, then you will need to download ItkVtkGlue and build it.
Information for Wiki Examples Users
If you just want to use the Wiki Examples, go here. You will learn how to search for examples, build a few examples and build all of the examples.
Information for Wiki Examples Developers
If you want to contribute examples go here. You will learn how to add a new example and the guidelines for writing an example.
Information for Wiki Examples Administrators
If you are a Wiki Example Administrator or want to learn more about the process go here. You will learn how the Wiki Examples repository is organized, how the repository is synced to the wiki and how to add new topics, tests and regression baselines.
Simple Operations
Input/Output (IO)
Example Name | ITK Classes Demonstrated | Description |
---|---|---|
Read an image file with an unknown number of components | ImageFileReader,VectorImage | |
Convert a C-style array to an itkImage | ImportImageFilter | |
Read an image file without knowing its type before hand | ImageFileReader | |
Write an image | ImageFileWriter | |
Read an image | ImageFileReader | |
Write a TIFF image | TIFFImageIO | This is a general demonstration of how to use a specific writer rather than relying on the ImageFileWriter to choose for you. |
Display an ITK image | ImageToVTKImageFilter |
DICOM
Example Name | ITK Classes Demonstrated | Description |
---|---|---|
Resample a DICOM series | GDCMImageIO | Resample a DICOM series with user-specified spacing. |
Image Processing
Iterating Over (Traversing) An Image
Image Edges, Gradients, and Derivatives
Image Edges, Gradients, and Derivatives
Smoothing
Example Name | ITK Classes Demonstrated | Description |
---|---|---|
Anti alias a binary image | AntiAliasBinaryImageFilter | |
Mean filter an image | MeanImageFilter | Replace each pixel by the mean of its neighborhood |
Median filter an image | MedianImageFilter | Replace each pixel by the median of its neighborhood |
Smooth an image with a discrete Gaussian filter | DiscreteGaussianImageFilter | |
Blur an image | BinomialBlurImageFilter | |
Bilateral filter an image | BilateralImageFilter | Edge preserving smoothing. |
Smooth an image using curvature flow | CurvatureFlowImageFilterType | |
Gaussian smoothing that works with image adaptors | SmoothingRecursiveGaussianImageFilter |
Morphology
Curves
Example Name | ITK Classes Demonstrated | Description |
---|---|---|
Compute the mean distance between all points of two curves | ContourMeanDistanceImageFilter |
Spectral Analysis
Utilities
Example Name | ITK Classes Demonstrated | Description |
---|---|---|
C-style array | FixedArray | |
Deep copy an image | ||
Permute a sequence of indices | ImageRandomNonRepeatingConstIteratorWithIndex | |
Random number generator | MersenneTwisterRandomVariateGenerator | |
Map scalars into a jet colormap | JetColormapFunctor | |
Monitor a filter | SimpleFilterWatcher | See debug style information. |
Time probe | TimeProbe | Compute the time between points in code. |
Observe an event | Command | |
Vector container | VectorContainer | |
Bounding box | BoundingBox |
Statistics
Spatial Objects
Example Name | ITK Classes Demonstrated | Description |
---|---|---|
Convert a spatial object to an image | SpatialObjectToImageFilter | |
Ellipse | EllipseSpatialObject | |
Line spatial object | LineSpatialObject, LineSpatialObjectPoint | Specify a piecewise-linear object by specifying points along the line. |
Blob | BlobSpatialObject |
Inspection
Example Name | ITK Classes Demonstrated | Description |
---|---|---|
Combine two images by alternating blocks of a checkerboard pattern | CheckerBoardImageFilter | |
Printing a pixel value to the console | GetPixel |
Image Registration
Example Name | ITK Classes Demonstrated | Description |
---|---|---|
A basic global registration of two images | ImageRegistrationMethod, TranslationTransform | Translation only transform. |
A global registration of two images | ImageRegistrationMethod, AffineTransform | Full affine transform. |
A global registration of two images | ImageRegistrationMethod, BSplineDeformableTransform | BSpline transform. |
Mutual Information | MutualInformationImageToImageMetric, TranslationTransform | Global registration by maximizing the mutual information and using a translation only transform |
Mutual Information Affine | MutualInformationImageToImageMetric, AffineTransform | Global registration by maximizing the mutual information and using an affine transform |
Image Segmentation
Example Name | ITK Classes Demonstrated | Description |
---|---|---|
Mean shift clustering | ||
KMeans Clustering | ||
Multiphase Chan And Vese Sparse Field Level Set Segmentation | itkScalarChanAndVeseSparseLevelSetImageFilter, itkScalarChanAndVeseLevelSetFunction |
Meshes
Example Name | ITK Classes Demonstrated | Description |
---|---|---|
Decimation | ||
Add points and edges | ||
Compute normals of a mesh | QuadEdgeMeshNormalFilter |
Wish List
Included in the ITK Repository
Example Name | ITK Classes Demonstrated | Description |
---|---|---|
Image registration |
Matlab
Example Name | ITK Classes Demonstrated | Description |
---|---|---|
Write data from Matlab in a format readable by ITK | ||
Write data from ITK in a format readable by Matlab |
Developer Examples
Example Name | ITK Classes Demonstrated | Description |
---|---|---|
Produce an image programmatically. | ImageSource | Nothing in, image out. |
Filter an image | ImageToImageFilter | Image in, same type of image out. |
Write a filter with multiple inputs of the same type. | ImageToImageFilter | Two images in (same type), same type of image out. |
Write a filter with multiple inputs of different types. | ImageToImageFilter | Two images in (different type), image (same type as first input) out. |
Write a filter with multiple outputs of the same type. | ImageToImageFilter | Images in, two images out (same type as first input). |
Problems
Small Problems
Big Problems
Example Name | ITK Classes Demonstrated | Description |
---|---|---|
Join images, stacking their components | JoinImageFilter | How to convert the vector image produced by the joinFilter to a standard image? |
Find the best position of the moving image in the fixed image. | MeanSquaresImageToImageMetric | Output (0,0) is incorrect. |
Compute and display the gradient of an image | GradientImageFilter | Blank output. |