InsightSoftwareConsortium/ITK

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Insight Toolkit (ITK) -- Official Repository. ITK builds on a proven, spatially-oriented architecture for processing, segmentation, and registration of scientific images in two, three, or more dimensions.

Stars: 1.7k
Forks: 748
Open beginner issues: 0
Indexed issues: 347
Avg merge: 1d 1h
Merged PRs (30d): 64

Dominant language: C++
License: Apache-2.0
Last GitHub push: Sep 15, 2026
Latest indexed: Sep 17, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Open All

347 open issues indexed

Replace pthreads and Win32 threads with C++11 threads? Open

type:Design

InsightSoftwareConsortium/ITK#3136 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
itk. array_from_vector_container fails for empty numpy array Open

type:Bug

InsightSoftwareConsortium/ITK#3150 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
ITK Python v5.3rc03 fails to import ITKImageGrid after upgrade Open

type:Bug

InsightSoftwareConsortium/ITK#3175 · 12 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
PyCommand utilizes Object and EventObject parameters Open

area:Python wrapping type:Enhancement

InsightSoftwareConsortium/ITK#3194 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 17, 2026
Inconsistent read from `.mha` vector image Open

type:Bug

InsightSoftwareConsortium/ITK#3208 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 17, 2026
blocked forever in select() from kwsysProcessWaitForPipe when running under TSan on macOS Open

type:Bug

InsightSoftwareConsortium/ITK#3210 · 13 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Inconsistent `itk::VariableLengthVector` addition results Open

area:Python wrapping type:Bug

InsightSoftwareConsortium/ITK#3218 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
`ContourSpatialObject<TDimension>::Update()` LINEAR_INTERPOLATION case may need some adjustment Open

type:Bug

InsightSoftwareConsortium/ITK#3222 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
The ITK/ThirdParty/DICOMParser diverged from VTK/Utilities/DICOMParser Open

type:Infrastructure

InsightSoftwareConsortium/ITK#3233 · 3 comments · 2 reactions · 1 assignee · Indexed Sep 17, 2026
STYLE: Update Python string formatting syntax Open

type:Style

InsightSoftwareConsortium/ITK#3239 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Integrate nanoflann Open

area:ThirdParty type:Enhancement type:Performance

InsightSoftwareConsortium/ITK#3240 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 17, 2026
Accidental itk::NiftiImageIO metadata behaviour change wrt `pixDim[0]` Open

type:Bug

InsightSoftwareConsortium/ITK#3241 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Define `operator+` for `itk.Vector` and `itk.VariableLengthVector` types Open

type:Enhancement

InsightSoftwareConsortium/ITK#3271 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Improve C++ Factory Static Initialization Coverage Open

type:Coverage

InsightSoftwareConsortium/ITK#3301 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
conflict with exported CMake target for HDF5 with ITK_USE_SYSTEM_HDF5=OFF Open

type:Bug

InsightSoftwareConsortium/ITK#3315 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
itkVersorRigid3DTransform::SetMatrix with tolerance parameter ignores parameter Open

type:Bug

InsightSoftwareConsortium/ITK#3336 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
COMP: Test deleted virtual methods / destructors Open

type:Coverage

InsightSoftwareConsortium/ITK#3390 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
`IO` `Mesh` modules reading methods missing reading ability check Open

type:Design

InsightSoftwareConsortium/ITK#3412 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Expose backend enablement through itk-accelerator Python package plugin functionality Open

InsightSoftwareConsortium/ITK#3421 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 17, 2026
OME-TIFF metadata IO support in the TIFF ImageIO Open

area:IO type:Enhancement

InsightSoftwareConsortium/ITK#3427 · 6 comments · 2 reactions · 0 assignees · Indexed Sep 17, 2026
BUG: RGBUC2 not recognized with slice of numpy array Open

type:Bug

InsightSoftwareConsortium/ITK#3429 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
`itkStatisticsUniqueLabelMapFilterTest1` sometimes fails in CI Open

type:Bug

InsightSoftwareConsortium/ITK#3451 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
`MeshIO` classes Write methods fail/timeout and round-trip test fail Open

type:Bug

InsightSoftwareConsortium/ITK#3455 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 17, 2026
NiftiImageIO: incorrect reading of 4D image when fourth dimension has size one Open

type:Bug

InsightSoftwareConsortium/ITK#3456 · 4 comments · 1 reaction · 0 assignees · Indexed Sep 17, 2026
BUG: Most ITK Python type hints do not show up in VS Code (Windows) Open

type:Bug

InsightSoftwareConsortium/ITK#3486 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
module 'itk' has no attribute 'CastImageFilter' Open

type:Bug

InsightSoftwareConsortium/ITK#3534 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Multithreading with TBB Module in AMD processor is significantly slower Open

type:Performance

InsightSoftwareConsortium/ITK#3591 · 3 comments · 0 reactions · 2 assignees · Indexed Sep 17, 2026
BUG: Building wrapping for an external module with no `.wrap` files returns a stub file generation failure Open

type:Bug

InsightSoftwareConsortium/ITK#3595 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
ITK failed to build with "error C2143: syntax error: missing ':' before 'constant'" with MSVC on Windows arm64ec Open

area:ThirdParty type:Bug type:Compiler

InsightSoftwareConsortium/ITK#3600 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Link GitHub with Discourse forum Open

type:Enhancement

InsightSoftwareConsortium/ITK#3622 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 17, 2026
Write NIFTI 2 format for big images Open

area:IO type:Enhancement

InsightSoftwareConsortium/ITK#3639 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Improve group/module bar layout in Doxygen pages Open

type:Documentation type:Infrastructure

InsightSoftwareConsortium/ITK#3658 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Consistent way to refer to ITK classes, namespaces, and ITK in Doxygen Open

type:Documentation

InsightSoftwareConsortium/ITK#3659 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Save scientific work citations to a BibTeX file for ease of use in Doxygen Open

Good first issue type:Documentation

InsightSoftwareConsortium/ITK#3662 · 29 comments · 1 reaction · 1 assignee · Indexed Sep 17, 2026
MattesMutualInformationv4 throws exception when fixed image has a single value. Open

area:Registration type:Bug

InsightSoftwareConsortium/ITK#3680 · 2 comments · 1 reaction · 1 assignee · Indexed Sep 17, 2026
Generalize masking in registration framework into weighting Open

type:Enhancement

InsightSoftwareConsortium/ITK#3704 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
build itk with ITK_USE_CUFFTW ITK_USE_GPU ON gets error Open

type:Compiler

InsightSoftwareConsortium/ITK#3744 · 14 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Tests fail to configure: Target "ITKCommonGTestDriver" links to GTest::GTest but the target was not found Open

type:Bug type:Infrastructure

InsightSoftwareConsortium/ITK#3749 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Configure required googletest when tests are off, which it shouldn't Open

type:Bug

InsightSoftwareConsortium/ITK#3750 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
When many remote modules are enabled configure fails: No such module: "ITKIOPNG" Open

type:Bug type:Infrastructure

InsightSoftwareConsortium/ITK#3754 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Name of FastMarching 'Base' filters Open

type:Style

InsightSoftwareConsortium/ITK#3757 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Open the Module_ Montage=ON and ITK_ WRAP_ PYTHON=ON option to compile. The compiled result does not support itk montage Open

type:Bug

InsightSoftwareConsortium/ITK#3779 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Build ITK with unsigned char support for ImageRegistrationMethodv4 Open

InsightSoftwareConsortium/ITK#3788 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Remote modules fail to checkout git tag but succeed with commit hash Open

type:Bug

InsightSoftwareConsortium/ITK#3795 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Implement function to decompose affine transforms Open

type:Enhancement

InsightSoftwareConsortium/ITK#3801 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
m_DownsampleImagesForMetricDerivatives bug Open

type:Bug

InsightSoftwareConsortium/ITK#3830 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Check initialization values in tests Open

Good first issue type:Testing

InsightSoftwareConsortium/ITK#3854 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Make enums strongly typed Open

InsightSoftwareConsortium/ITK#3873 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Warnings: 'sprintf' has been explicitly marked deprecated here Open

type:Compiler

InsightSoftwareConsortium/ITK#3894 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Guix package definition; Configure fails. Open

type:Bug

InsightSoftwareConsortium/ITK#3911 · 16 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026

InsightSoftwareConsortium/ITK

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