# Latest

**URL:** https://discourse.itk.org/latest.md?page=85

[Latest](https://discourse.itk.org/latest.md) · [Categories](https://discourse.itk.org/categories.md) · [Tags](https://discourse.itk.org/tags.md)

**Page:** 86

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## [Correct way to interrupt processing with AbortGenerateData](https://discourse.itk.org/t/correct-way-to-interrupt-processing-with-abortgeneratedata/2006)

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**Author:** [@IanL](https://discourse.itk.org/u/IanL)\
**Replies:** 3\
**Last updated:** [July 4, 2019, 11:17am UTC](https://discourse.itk.org/t/correct-way-to-interrupt-processing-with-abortgeneratedata/2006 "2019-07-04T11:17:46Z")

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Hi all, I am trying to determine the correct way to interrupt processing of a segmentation pipeline. This will be from a user request, application shutdown, etc. The segmentation is running in a worker thread and the ca…

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## [(API) Specify image channels](https://discourse.itk.org/t/api-specify-image-channels/2009)

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**Author:** [@nm97](https://discourse.itk.org/u/nm97)\
**Replies:** 9\
**Last updated:** [July 3, 2019, 6:34pm UTC](https://discourse.itk.org/t/api-specify-image-channels/2009 "2019-07-03T18:34:44Z")

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How can I specify image channels. I have created image object. using ImageType = itk::Image\< uint8\_t, 2 \>; ImageType::Pointer image = ImageType::New(); ImageType::SizeType size; size\[0…

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## [Using cmake to build SimpleITK](https://discourse.itk.org/t/using-cmake-to-build-simpleitk/373)

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**Author:** [@Pythonsegmenter](https://discourse.itk.org/u/Pythonsegmenter)\
**Replies:** 21\
**Last updated:** [July 2, 2019, 12:21pm UTC](https://discourse.itk.org/t/using-cmake-to-build-simpleitk/373 "2019-07-02T12:21:29Z")

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Hi guys, So i followed the tutorial I found here: http://simpleitk.readthedocs.io/en/master/Documentation/docs/source/building.html#recipes-formulas-short-cuts to build the latest unreleased SimpleITK version. I downlo…

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## [Use of Mask Image filter in liver segmentation](https://discourse.itk.org/t/use-of-mask-image-filter-in-liver-segmentation/1990)

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**Author:** [@Pooja\_Virkar](https://discourse.itk.org/u/Pooja_Virkar)\
**Replies:** 4\
**Last updated:** [July 1, 2019, 1:57pm UTC](https://discourse.itk.org/t/use-of-mask-image-filter-in-liver-segmentation/1990 "2019-07-01T13:57:39Z")

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Hello, I would like to segment the liver. I used different algorithms in 3D data. But i am unable to get exact liver part in my output. Other regions are also coming. I tried using “maskImagefilter”. but I am getting …

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## [TwoProjectionRegistration - 2D 3D registration](https://discourse.itk.org/t/twoprojectionregistration-2d-3d-registration/1972)

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**Author:** [@Gabriele\_Belotti](https://discourse.itk.org/u/Gabriele_Belotti)\
**Replies:** 2\
**Last updated:** [June 30, 2019, 3:29pm UTC](https://discourse.itk.org/t/twoprojectionregistration-2d-3d-registration/1972 "2019-06-30T15:29:14Z")

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Dear all, I’m testing this particular module to evaluate a 2D/3D registration context. I was able to obtain DRRs using Siddon-Jacobs ray tracing method (starting point is an FDK of POPI model) and as a proof of concept…

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## [swig error after upgrading to 5.0](https://discourse.itk.org/t/swig-error-after-upgrading-to-5-0/1933)

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**Author:** [@Jianxu\_Chen](https://discourse.itk.org/u/Jianxu_Chen)\
**Replies:** 1\
**Last updated:** [June 26, 2019, 8:42pm UTC](https://discourse.itk.org/t/swig-error-after-upgrading-to-5-0/1933 "2019-06-26T20:42:11Z")

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itk\_seed = itk.GetImageFromArray(init\_levelset.astype(np.float32)) InternalImageType = itk.Image\[itk.F, 3\] geodesicActiveContour = itk.GeodesicActiveContourLevelSetImageFilter\[InternalImageType,InternalImageType,itk.F\]…

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## [Trimming down ITK build to just used parts](https://discourse.itk.org/t/trimming-down-itk-build-to-just-used-parts/1995)

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**Author:** [@gdevenyi](https://discourse.itk.org/u/gdevenyi)\
**Replies:** 4\
**Last updated:** [June 26, 2019, 6:04pm UTC](https://discourse.itk.org/t/trimming-down-itk-build-to-just-used-parts/1995 "2019-06-26T18:04:14Z")

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I’m investigating trimming down the ANTs superbuild to include the minimum components of ITK/VTK required for it to function. I was wondering, can anyone suggest a method to determine which components are used so that I…

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## [Voxel membership tests and contours from meshes](https://discourse.itk.org/t/voxel-membership-tests-and-contours-from-meshes/1993)

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**Author:** [@danelliottster](https://discourse.itk.org/u/danelliottster)\
**Replies:** 1\
**Last updated:** [June 25, 2019, 4:57pm UTC](https://discourse.itk.org/t/voxel-membership-tests-and-contours-from-meshes/1993 "2019-06-25T16:57:28Z")

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I am investigating whether or not we can convert a signification portion of our software to ITK. I’ve written a sample program to do much of what we need but there is still a couple significant question marks. I’ve don…

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## [Annoying Vulnerability E-Mail](https://discourse.itk.org/t/annoying-vulnerability-e-mail/1981)

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**Author:** [@bill.lorensen](https://discourse.itk.org/u/bill.lorensen)\
**Replies:** 2\
**Last updated:** [June 20, 2019, 11:29pm UTC](https://discourse.itk.org/t/annoying-vulnerability-e-mail/1981 "2019-06-20T23:29:35Z")

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Folks, I’ve been getting an annoying e-mail for a while about a vulnerability dependency. This link describes it Vulnerability. Am I the only one getting this? Bill

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## [Registering several non-orthogonal slices into volume](https://discourse.itk.org/t/registering-several-non-orthogonal-slices-into-volume/1976)

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**Author:** [@SMT](https://discourse.itk.org/u/SMT)\
**Replies:** 2\
**Last updated:** [June 18, 2019, 3:11pm UTC](https://discourse.itk.org/t/registering-several-non-orthogonal-slices-into-volume/1976 "2019-06-18T15:11:59Z")

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Hello, I am using ITK and SimpleITK in Python. I would like to register multiple slices with known relative orientation into a volume. I found this page with similar topic https://itk.org/pipermail/community/2014-Septem…

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## [Simpleitk gui.py not showing sliders](https://discourse.itk.org/t/simpleitk-gui-py-not-showing-sliders/1968)

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**Author:** [@nsp8](https://discourse.itk.org/u/nsp8)\
**Replies:** 2\
**Last updated:** [June 17, 2019, 3:32pm UTC](https://discourse.itk.org/t/simpleitk-gui-py-not-showing-sliders/1968 "2019-06-17T15:32:56Z")

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Hi all, Does anyone know why the slider not showing up in jupyter notebook when i try to display 3d images using the gui.MultiImageDisplay function? I just got a view of one slice. The code: gui.MultiImageDisplay(\[im1…

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## [ITKFFTExport.h is missing?](https://discourse.itk.org/t/itkfftexport-h-is-missing/1966)

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**Author:** [@revolvet](https://discourse.itk.org/u/revolvet)\
**Replies:** 4\
**Last updated:** [June 14, 2019, 3:50pm UTC](https://discourse.itk.org/t/itkfftexport-h-is-missing/1966 "2019-06-14T15:50:54Z")

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Hi. I’m trying to build python wrapper for ITK. There is an error saying that MSVC 16.1.2 (2019) (Windows 10) can’t find ITKFFTExport.h. I search through the source folder and can’t find this header. itkFFTWGlobalConfigu…

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## [Seperate 2 series with the same series UID](https://discourse.itk.org/t/seperate-2-series-with-the-same-series-uid/1964)

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**Author:** [@hadasara](https://discourse.itk.org/u/hadasara)\
**Replies:** 2\
**Last updated:** [June 14, 2019, 1:51pm UTC](https://discourse.itk.org/t/seperate-2-series-with-the-same-series-uid/1964 "2019-06-14T13:51:37Z")

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Hi all, Whe I upload DICOM series into ITK SNAP, ITK-SNAP succceded to seperate a single slice that was not related to a series that was saved as the same UID. A dicom viewer Radient, didn’t suceed to seperate them. D…

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## [Support for complex pixel type in SimpleITK is lacking](https://discourse.itk.org/t/support-for-complex-pixel-type-in-simpleitk-is-lacking/1942)

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**Author:** [@Brynolf](https://discourse.itk.org/u/Brynolf)\
**Replies:** 7\
**Last updated:** [June 13, 2019, 4:08pm UTC](https://discourse.itk.org/t/support-for-complex-pixel-type-in-simpleitk-is-lacking/1942 "2019-06-13T16:08:35Z")

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Hello, I have been dabbling with SimpleITK in python for a while now, and just now I ran in to an issue I cannot find the answer to. From the documentation it is possible to create images with complex type (sitkComplexF…

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## [iterative inverse displacement filter in ITK](https://discourse.itk.org/t/iterative-inverse-displacement-filter-in-itk/1952)

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**Author:** [@EE18D504\_SINDHURA\_C](https://discourse.itk.org/u/EE18D504_SINDHURA_C)\
**Replies:** 8\
**Last updated:** [June 13, 2019, 12:34pm UTC](https://discourse.itk.org/t/iterative-inverse-displacement-filter-in-itk/1952 "2019-06-13T12:34:09Z")

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Are there any examples (code) where this filter is used?

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## [Level-Set based not only on potential map](https://discourse.itk.org/t/level-set-based-not-only-on-potential-map/1959)

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**Author:** [@Riccardo\_Ballarini](https://discourse.itk.org/u/Riccardo_Ballarini)\
**Replies:** 3\
**Last updated:** [June 12, 2019, 6:37pm UTC](https://discourse.itk.org/t/level-set-based-not-only-on-potential-map/1959 "2019-06-12T18:37:43Z")

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Hi guys, thank you in advance for reading this. As the title says, I’d like to know if in ITK there is a level-set that uses not only the potential map for the segmentation. In particular, I’m looking for a level-set th…

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## [ITK 5.0.0 has been released!](https://discourse.itk.org/t/itk-5-0-0-has-been-released/1931)

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**Author:** [@fbudin](https://discourse.itk.org/u/fbudin)\
**Replies:** 13\
**Last updated:** [June 12, 2019, 8:19pm UTC](https://discourse.itk.org/t/itk-5-0-0-has-been-released/1931 "2019-06-12T20:19:02Z")

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We are happy to announce the Insight Toolkit (ITK) 5.0.0! :tada: ITK is an open-source, cross-platform toolkit for N-dimensional scientific image processing, segmentation, and registration. ITK 5.0.0 is a major release …

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## [simpleitk.show not returning handles after execution](https://discourse.itk.org/t/simpleitk-show-not-returning-handles-after-execution/1962)

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**Author:** [@nsp8](https://discourse.itk.org/u/nsp8)\
**Replies:** 1\
**Last updated:** [June 12, 2019, 6:54pm UTC](https://discourse.itk.org/t/simpleitk-show-not-returning-handles-after-execution/1962 "2019-06-12T18:54:26Z")

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Hi all, When I try to sitk.show(img), an imageJ windows pop up with the image I want to show. But inside the jupyter notebook, it still shows busy kernel even after close the imagej window. Does anyone know why this hap…

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## [itkThickness3D](https://discourse.itk.org/t/itkthickness3d/1918)

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**Author:** [@Marco\_Festugato](https://discourse.itk.org/u/Marco_Festugato)\
**Replies:** 3\
**Last updated:** [June 12, 2019, 3:58pm UTC](https://discourse.itk.org/t/itkthickness3d/1918 "2019-06-12T15:58:31Z")

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Hello everyone, I want to use the itkThickness3D filter in order to compute the 3D skeleton of my segmented blood vessels. I can’t find any documentation yet, so I dont know if with this filter (or another one) I can cal…

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## [The Insight Software Consortium reaffirms the Open Software Initiative's Open Source Definition](https://discourse.itk.org/t/the-insight-software-consortium-reaffirms-the-open-software-initiatives-open-source-definition/1950)

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**Author:** [@jhlegarreta](https://discourse.itk.org/u/jhlegarreta)\
**Replies:** 2\
**Last updated:** [June 12, 2019, 3:53pm UTC](https://discourse.itk.org/t/the-insight-software-consortium-reaffirms-the-open-software-initiatives-open-source-definition/1950 "2019-06-12T15:53:06Z")

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Earlier this year, the concept of open-source software was challenged by software that was being licensed under very specific clauses that brought controversy to the open-source software community. Following this contro…

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## [Why itk::BSpineTransform add two extra control points to the upper bound?](https://discourse.itk.org/t/why-itk-bspinetransform-add-two-extra-control-points-to-the-upper-bound/1915)

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**Author:** [@sedghi](https://discourse.itk.org/u/sedghi)\
**Replies:** 3\
**Last updated:** [June 11, 2019, 1:09pm UTC](https://discourse.itk.org/t/why-itk-bspinetransform-add-two-extra-control-points-to-the-upper-bound/1915 "2019-06-11T13:09:08Z")

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I have a question regarding the extra control points that gets added to the grid for the B-spline transformation. I fully understand the one control point that gets added to the lower bound, but I don’t get why two cont…

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## [GDCM not found when ITK 5.0 is installed as shared library](https://discourse.itk.org/t/gdcm-not-found-when-itk-5-0-is-installed-as-shared-library/1955)

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**Author:** [@lukas](https://discourse.itk.org/u/lukas)\
**Replies:** 0\
**Last updated:** [June 10, 2019, 12:02pm UTC](https://discourse.itk.org/t/gdcm-not-found-when-itk-5-0-is-installed-as-shared-library/1955 "2019-06-10T12:02:22Z")

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Hi all, When trying to run an application built with ITK 5.0 installed as a shared library, I get the error: error while loading shared libraries: libitkgdcmjpeg8-5.0.so.1: cannot open shared object file: No such file…

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## [Difference between InverseDeformationFieldImageFilter and InverseDisplacementFieldImageFilter](https://discourse.itk.org/t/difference-between-inversedeformationfieldimagefilter-and-inversedisplacementfieldimagefilter/583)

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**Author:** [@Ray](https://discourse.itk.org/u/Ray)\
**Replies:** 2\
**Last updated:** [June 10, 2019, 6:06am UTC](https://discourse.itk.org/t/difference-between-inversedeformationfieldimagefilter-and-inversedisplacementfieldimagefilter/583 "2019-06-10T06:06:17Z")

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Hello! According to the wiki pages, I can’t tell any difference between InverseDeformationFieldImageFilter (https://itk.org/Doxygen/html/classitk\_1\_1InverseDeformationFieldImageFilter.html) and InverseDisplacementFieldI…

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## [Maintenance of test data server](https://discourse.itk.org/t/maintenance-of-test-data-server/1949)

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**Author:** [@dzenanz](https://discourse.itk.org/u/dzenanz)\
**Replies:** 0\
**Last updated:** [June 7, 2019, 7:02pm UTC](https://discourse.itk.org/t/maintenance-of-test-data-server/1949 "2019-06-07T19:02:18Z")

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We are expecting downtime Thursday June 13, 11 am - 1 pm Eastern time, on data.kitware.com, as we upgrade the instance to Girder 3.

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## [ITK 5.0 DeformableRegistration15.cxx](https://discourse.itk.org/t/itk-5-0-deformableregistration15-cxx/1948)

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**Author:** [@EE18D504\_SINDHURA\_C](https://discourse.itk.org/u/EE18D504_SINDHURA_C)\
**Replies:** 1\
**Last updated:** [June 6, 2019, 6:45pm UTC](https://discourse.itk.org/t/itk-5-0-deformableregistration15-cxx/1948 "2019-06-06T18:45:21Z")

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Im not able to build this file in Visual Studio 2109. the following error arises. Please help me fix this issue 1\>------ Build started: Project: itkv3p\_netlib, Configuration: Debug x64 ------ 2\>------ Build started: Pr…

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## [Registration Using Elastix-- Mutual Information based for CT volume to CT volume](https://discourse.itk.org/t/registration-using-elastix-mutual-information-based-for-ct-volume-to-ct-volume/1944)

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**Author:** [@srbn.ghosh89](https://discourse.itk.org/u/srbn.ghosh89)\
**Replies:** 4\
**Last updated:** [June 6, 2019, 2:21pm UTC](https://discourse.itk.org/t/registration-using-elastix-mutual-information-based-for-ct-volume-to-ct-volume/1944 "2019-06-06T14:21:53Z")

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There are lots of modules under elastix. Which module should I use for CT volume to CT volume registration? And where to put the input file names and how to choose the method?

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## [active contour without edge](https://discourse.itk.org/t/active-contour-without-edge/1932)

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**Author:** [@Jianxu\_Chen](https://discourse.itk.org/u/Jianxu_Chen)\
**Replies:** 16\
**Last updated:** [June 4, 2019, 2:07pm UTC](https://discourse.itk.org/t/active-contour-without-edge/1932 "2019-06-04T14:07:34Z")

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I am trying to build a segmentation module using the following two algorithms. https://www.insight-journal.org/browse/publication/322 http://insight-journal.org/browse/publication/323 Is it possible for me to download…

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## [ITK - Concept checking error](https://discourse.itk.org/t/itk-concept-checking-error/1946)

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**Author:** [@Pooja\_Virkar](https://discourse.itk.org/u/Pooja_Virkar)\
**Replies:** 1\
**Last updated:** [June 5, 2019, 2:26pm UTC](https://discourse.itk.org/t/itk-concept-checking-error/1946 "2019-06-05T14:26:50Z")

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Hello, I am trying to segment tumour in liver. I made one program which is working fine with 2D images. but when I am trying to run 3D series for the same program, its showing following “Concept checking” error. /us…

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## [SetInitialDisplacementField not working properly for MultiResolutionPDEDeformableRegistration](https://discourse.itk.org/t/setinitialdisplacementfield-not-working-properly-for-multiresolutionpdedeformableregistration/979)

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**Author:** [@adjuric](https://discourse.itk.org/u/adjuric)\
**Replies:** 1\
**Last updated:** [June 5, 2019, 6:02am UTC](https://discourse.itk.org/t/setinitialdisplacementfield-not-working-properly-for-multiresolutionpdedeformableregistration/979 "2019-06-05T06:02:40Z")

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I’m attempting to perform diffeomorphic demons registration of two images using the corresponding filter and the MultiResolutionPDEDeformableRegistration class. I compute an affine transform of the the two images beforeh…

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## ["This stuff is hard!" resources to start learning about registration](https://discourse.itk.org/t/this-stuff-is-hard-resources-to-start-learning-about-registration/1886)

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**Author:** [@vzickus](https://discourse.itk.org/u/vzickus)\
**Replies:** 10\
**Last updated:** [June 3, 2019, 11:36am UTC](https://discourse.itk.org/t/this-stuff-is-hard-resources-to-start-learning-about-registration/1886 "2019-06-03T11:36:32Z")

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Hi everyone, I have been playing around with “turning the knobs” for registration for some time now, but I feel most of the time it is still a black-box to me. I wonder if I lack a good foundation for image registration…

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