# Latest

**URL:** https://discourse.itk.org/latest.md?page=91

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

**Page:** 92

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## [Check out open gerrit topics](https://discourse.itk.org/t/check-out-open-gerrit-topics/1597)

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**Author:** [@jhlegarreta](https://discourse.itk.org/u/jhlegarreta)\
**Replies:** 4\
**Last updated:** [February 14, 2019, 4:04am UTC](https://discourse.itk.org/t/check-out-open-gerrit-topics/1597 "2019-02-14T04:04:31Z")

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Folks, is there a way to checkout open gerrit topics that were not transitioned to GitHub? I’d like to finish work that I left behind a while ago. Since gerrit was put to read-only mode, searches by keywords cannot be…

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## [How to build ITK dll?](https://discourse.itk.org/t/how-to-build-itk-dll/1594)

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**Author:** [@Armando](https://discourse.itk.org/u/Armando)\
**Replies:** 2\
**Last updated:** [February 12, 2019, 2:29pm UTC](https://discourse.itk.org/t/how-to-build-itk-dll/1594 "2019-02-12T14:29:39Z")

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Hi. I need to build the dinamic link libraries of ITK. My OS is Windows 10 and my IDE is Visual Studio 2010. Thanks.

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## [Command: Execute with const or non-const object](https://discourse.itk.org/t/command-execute-with-const-or-non-const-object/1587)

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**Author:** [@Gordian](https://discourse.itk.org/u/Gordian)\
**Replies:** 2\
**Last updated:** [February 12, 2019, 12:10pm UTC](https://discourse.itk.org/t/command-execute-with-const-or-non-const-object/1587 "2019-02-12T12:10:27Z")

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Hello, i could not figure out when an itk::Event invokes virtual void Execute (Object \*caller, const EventObject &event) or virtual void Execute (const Object \*caller, const EventObject &event) In both cases the inv…

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## [ITK python vessel segmentation](https://discourse.itk.org/t/itk-python-vessel-segmentation/1590)

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**Author:** [@albert](https://discourse.itk.org/u/albert)\
**Replies:** 4\
**Last updated:** [February 12, 2019, 12:15am UTC](https://discourse.itk.org/t/itk-python-vessel-segmentation/1590 "2019-02-12T00:15:39Z")

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Hi all, I am new to ITK and trying to do some work about brain vessel segmentation using ITK python. But I have no idea how to use those filters such as HessianRecursiveGaussianImageFilter and Hessian3DToVesselnessMeasu…

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## [Imaging archives](https://discourse.itk.org/t/imaging-archives/1572)

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**Author:** [@hadasara](https://discourse.itk.org/u/hadasara)\
**Replies:** 2\
**Last updated:** [February 11, 2019, 4:56pm UTC](https://discourse.itk.org/t/imaging-archives/1572 "2019-02-11T16:56:16Z")

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Hi all, I’m looking for an imaging archive to test my algorithms, that store both MRI and CT scans, of the same patient, specifically brain GBM patients. I know the TCIA archive. Any other suggestions? Thank you, Ha…

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## [GitHub bot to automatically close stale Issues and Pull Requests that tend to accumulate during a project](https://discourse.itk.org/t/github-bot-to-automatically-close-stale-issues-and-pull-requests-that-tend-to-accumulate-during-a-project/1592)

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**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\
**Replies:** 0\
**Last updated:** [February 11, 2019, 4:37pm UTC](https://discourse.itk.org/t/github-bot-to-automatically-close-stale-issues-and-pull-requests-that-tend-to-accumulate-during-a-project/1592 "2019-02-11T16:37:01Z")

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As suggested by @hjmjohnson, the probot-stale GitHub App has been installed on the ITK repository. :octopus: :bread: :older\_adult: As described in its documentation, this adds a bot that does the following: After a p…

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## [Patches for ITK 4.13.2](https://discourse.itk.org/t/patches-for-itk-4-13-2/1582)

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**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\
**Replies:** 9\
**Last updated:** [February 11, 2019, 4:26pm UTC](https://discourse.itk.org/t/patches-for-itk-4-13-2/1582 "2019-02-11T16:26:17Z")

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Hi folks, The next patch (bugfix) release, ITK 4.13.2, is planned for February 19th. Patches currently staged on the Git release-4.13 branch are: Bai Shi (1): COMP: To fix compilation error of "cannot dynamic\_ca…

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## [Creating a composite Image from multiple blocks](https://discourse.itk.org/t/creating-a-composite-image-from-multiple-blocks/1568)

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**Author:** [@spic](https://discourse.itk.org/u/spic)\
**Replies:** 4\
**Last updated:** [February 8, 2019, 9:32pm UTC](https://discourse.itk.org/t/creating-a-composite-image-from-multiple-blocks/1568 "2019-02-08T21:32:00Z")

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I am trying to create a composite image from a number of blocks arranged in a grid. When pasting new block into this composite Image the composite is getting overwritten in the location of first block so I end up with th…

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## [Is it possible to get a writable array view of a SimpleITK image?](https://discourse.itk.org/t/is-it-possible-to-get-a-writable-array-view-of-a-simpleitk-image/1585)

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**Author:** [@david-hoffman](https://discourse.itk.org/u/david-hoffman)\
**Replies:** 10\
**Last updated:** [February 8, 2019, 7:30pm UTC](https://discourse.itk.org/t/is-it-possible-to-get-a-writable-array-view-of-a-simpleitk-image/1585 "2019-02-08T19:30:13Z")

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Following up on this question: https://stackoverflow.com/questions/54557586/does-simpleitk-have-broadcasting/54577094 If GetArrayViewFromImage returned a writable view then you could use numpy broadcasting without issue…

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## [Neighborhood / cutoff distance of smoothing with itkSmoothingRecursiveGaussianImageFilter](https://discourse.itk.org/t/neighborhood-cutoff-distance-of-smoothing-with-itksmoothingrecursivegaussianimagefilter/1570)

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**Author:** [@cookpa](https://discourse.itk.org/u/cookpa)\
**Replies:** 2\
**Last updated:** [February 6, 2019, 9:06pm UTC](https://discourse.itk.org/t/neighborhood-cutoff-distance-of-smoothing-with-itksmoothingrecursivegaussianimagefilter/1570 "2019-02-06T21:06:39Z")

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In the itkGaussianInterpolateImageFunction filter, we set sigma, the standard deviation of the Gaussian smoothing and alpha, the cutoff distance from the center voxel, over which the kernel is sampled. Is there an equiv…

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## [Remote ITKModule build on top of another](https://discourse.itk.org/t/remote-itkmodule-build-on-top-of-another/1547)

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**Author:** [@T4mmi](https://discourse.itk.org/u/T4mmi)\
**Replies:** 16\
**Last updated:** [February 6, 2019, 3:05pm UTC](https://discourse.itk.org/t/remote-itkmodule-build-on-top-of-another/1547 "2019-02-06T15:05:30Z")

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Hi again, I did not found any tool for 3D object thickness measurement in ITK… So I used a composition of ITKBinaryThinning3D and EuclideanDistance to compute the distance from medial axis to the outside as the object …

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## [ITK 5.0 Beta 3: GitHub](https://discourse.itk.org/t/itk-5-0-beta-3-github/1504)

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**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\
**Replies:** 0\
**Last updated:** [January 4, 2019, 6:56pm UTC](https://discourse.itk.org/t/itk-5-0-beta-3-github/1504 "2019-01-04T18:56:20Z")

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We are happy to announce the Insight Toolkit (ITK) version 5 Beta 3 release! :tada: Downloads: Source code (zip) Source code (tar.gz) To install the 5.0 Beta 3 Python packages, run python -m pip install --upgrade pi…

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## [New warnings from master CMake](https://discourse.itk.org/t/new-warnings-from-master-cmake/1575)

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**Author:** [@dzenanz](https://discourse.itk.org/u/dzenanz)\
**Replies:** 1\
**Last updated:** [February 5, 2019, 10:31pm UTC](https://discourse.itk.org/t/new-warnings-from-master-cmake/1575 "2019-02-05T22:31:25Z")

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Using the master branch of CMake, and VS2019 Preview2 as the generator, these warnings appear: ... Filter ZLIB is ON CMake Warning (dev) at Modules/ThirdParty/HDF5/src/itkhdf5/CMakeLists.txt:733 (set): implicitly conve…

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## [Perimetre computation using itkShapeLabelObject](https://discourse.itk.org/t/perimetre-computation-using-itkshapelabelobject/1574)

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**Author:** [@pauline](https://discourse.itk.org/u/pauline)\
**Replies:** 2\
**Last updated:** [February 5, 2019, 5:06pm UTC](https://discourse.itk.org/t/perimetre-computation-using-itkshapelabelobject/1574 "2019-02-05T17:06:10Z")

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Hi all, I am using itkShapeLabelObject to compute the surface area of a segmented object, in a 3D image. However, I have trouble understanding the computation process from the code in ITK/Modules/Filtering/LabelMap/incl…

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## [CDash GitHub Check](https://discourse.itk.org/t/cdash-github-check/1564)

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**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\
**Replies:** 4\
**Last updated:** [February 5, 2019, 2:40pm UTC](https://discourse.itk.org/t/cdash-github-check/1564 "2019-02-05T14:40:26Z")

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Our CDash GitHub Check is back online, and improved! :tada: The status check is now listed as CDash: This status will be yellow (in progress), if there are expected builds in progress, red (failure) is any one of the…

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## [LabelGeometryImageFilter not using physical space](https://discourse.itk.org/t/labelgeometryimagefilter-not-using-physical-space/1566)

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**Author:** [@dzenanz](https://discourse.itk.org/u/dzenanz)\
**Replies:** 4\
**Last updated:** [January 31, 2019, 5:08pm UTC](https://discourse.itk.org/t/labelgeometryimagefilter-not-using-physical-space/1566 "2019-01-31T17:08:49Z")

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Looking at the code of LabelGeometryImageFilter, it seems to be doing all its calculation in index space, including volume and centroid. To add insult to injury, centroid is representated using PointType which is usually…

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## [Error while reading an image with ITK Python](https://discourse.itk.org/t/error-while-reading-an-image-with-itk-python/1560)

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**Author:** [@aszmul](https://discourse.itk.org/u/aszmul)\
**Replies:** 4\
**Last updated:** [January 29, 2019, 2:02pm UTC](https://discourse.itk.org/t/error-while-reading-an-image-with-itk-python/1560 "2019-01-29T14:02:23Z")

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Dear All, I am starting using itk with python, so it might sound silly, but I have the following problem. I have installed itk using command: python -m pip install itk The packages have been successfully installed. …

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## [CMake problem with ITK and fftw](https://discourse.itk.org/t/cmake-problem-with-itk-and-fftw/1558)

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**Author:** [@pfreire](https://discourse.itk.org/u/pfreire)\
**Replies:** 2\
**Last updated:** [January 28, 2019, 6:10pm UTC](https://discourse.itk.org/t/cmake-problem-with-itk-and-fftw/1558 "2019-01-28T18:10:14Z")

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Hello everyone. I’m trying to build ITK 4.13.1 with fftw-3.3.8. When I set either or both flags ITK\_USE\_FFTWD and ITK\_USE\_FFTWF on, I get the following error during the “configure” step: CMake Error at /usr/local/share…

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## [Read ROI from image from disk in SimpleITK](https://discourse.itk.org/t/read-roi-from-image-from-disk-in-simpleitk/1557)

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**Author:** [@rogertrullo](https://discourse.itk.org/u/rogertrullo)\
**Replies:** 1\
**Last updated:** [January 28, 2019, 2:00pm UTC](https://discourse.itk.org/t/read-roi-from-image-from-disk-in-simpleitk/1557 "2019-01-28T14:00:08Z")

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Hi, does anyone know if there is a way to read a subsection of an image (an ROI) without loading the entire image into memory, is it doable in SimpleITK? Thanks!

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## [itkTypeMacro](https://discourse.itk.org/t/itktypemacro/1555)

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**Author:** [@fbudin](https://discourse.itk.org/u/fbudin)\
**Replies:** 2\
**Last updated:** [January 27, 2019, 4:36pm UTC](https://discourse.itk.org/t/itktypemacro/1555 "2019-01-27T16:36:28Z")

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Looking into the itkMacro.h file, I was surprised to discover that the macro called itkTypeMacro which takes as arguments the name of the class and the name of the superclass actually do not do anything with the name of …

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## [Phase symmetry filter fails with "Inputs do not occupy the same physical space" error](https://discourse.itk.org/t/phase-symmetry-filter-fails-with-inputs-do-not-occupy-the-same-physical-space-error/1549)

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**Author:** [@lassoan](https://discourse.itk.org/u/lassoan)\
**Replies:** 4\
**Last updated:** [January 26, 2019, 8:39pm UTC](https://discourse.itk.org/t/phase-symmetry-filter-fails-with-inputs-do-not-occupy-the-same-physical-space-error/1549 "2019-01-26T20:39:34Z")

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We are trying to use the phase symmetry filter in ITKPhaseSymmetry remote module for noise suppression in ultrasound images. The filter looks very promising, but we are running into “Inputs do not occupy the same physica…

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## [Index of Remote Modules](https://discourse.itk.org/t/index-of-remote-modules/1550)

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**Author:** [@phcerdan](https://discourse.itk.org/u/phcerdan)\
**Replies:** 1\
**Last updated:** [January 25, 2019, 8:46pm UTC](https://discourse.itk.org/t/index-of-remote-modules/1550 "2019-01-25T20:46:11Z")

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It would be nice to keep a reference of existing external modules that do not have yet a ModuleName.remote.cmake in the Remote folder. Adding a status flag to each one could be a good extra!

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## [Trigger CI build when new version of Python is released](https://discourse.itk.org/t/trigger-ci-build-when-new-version-of-python-is-released/1548)

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**Author:** [@T4mmi](https://discourse.itk.org/u/T4mmi)\
**Replies:** 2\
**Last updated:** [January 25, 2019, 2:26pm UTC](https://discourse.itk.org/t/trigger-ci-build-when-new-version-of-python-is-released/1548 "2019-01-25T14:26:46Z")

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Hi, Quick question regarding ITK “remote” modules wrapped for python. Travis / Circle / Appveyor provide great help to build the modules ! even if I somehow struggle with the automatic PyPI upload, but that’s not the …

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## [Is it safe to store itk::Image inside itk::DataObject](https://discourse.itk.org/t/is-it-safe-to-store-itk-image-inside-itk-dataobject/1546)

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**Author:** [@Athius](https://discourse.itk.org/u/Athius)\
**Replies:** 2\
**Last updated:** [January 25, 2019, 2:18pm UTC](https://discourse.itk.org/t/is-it-safe-to-store-itk-image-inside-itk-dataobject/1546 "2019-01-25T14:18:48Z")

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Hello everyone, I have some question regarding the memory management. I want to separate my application in multiple modules and manage all itk::Image PixelType available. To store an itk::Image inside a itk::DataObjec…

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## [Proposal to add orientation to vtkImageData- Feedback Wanted](https://discourse.itk.org/t/proposal-to-add-orientation-to-vtkimagedata-feedback-wanted/1545)

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**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\
**Replies:** 0\
**Last updated:** [January 24, 2019, 6:22pm UTC](https://discourse.itk.org/t/proposal-to-add-orientation-to-vtkimagedata-feedback-wanted/1545 "2019-01-24T18:22:57Z")

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Please, post comments directly on the associated VTK post: https://discourse.vtk.org/t/proposal-to-add-orientation-to-vtkimagedata-feedback-wanted/120 This will address a long-standing issue in the ITKVtkGlue bridge: lo…

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## [How can I get an interpolated value "between" voxels?](https://discourse.itk.org/t/how-can-i-get-an-interpolated-value-between-voxels/1535)

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**Author:** [@Alessandro](https://discourse.itk.org/u/Alessandro)\
**Replies:** 6\
**Last updated:** [January 23, 2019, 5:32pm UTC](https://discourse.itk.org/t/how-can-i-get-an-interpolated-value-between-voxels/1535 "2019-01-23T17:32:08Z")

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Hello, I have a 3D image in raw format, the .mhd file is similar to this one: ObjectType = Image NDims = 3 ElementSpacing = 0.031473 0.031473 0.031473 DimSize = 100 100 100 ElementType = MET\_SHORT ElementDataFile = pha…

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## [Why is pixeSpacing\[2\] not equal to spacing between slices from DICOM tag (0018, 0088) ?](https://discourse.itk.org/t/why-is-pixespacing-2-not-equal-to-spacing-between-slices-from-dicom-tag-0018-0088/1540)

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**Author:** [@guo7212](https://discourse.itk.org/u/guo7212)\
**Replies:** 0\
**Last updated:** [January 22, 2019, 3:40am UTC](https://discourse.itk.org/t/why-is-pixespacing-2-not-equal-to-spacing-between-slices-from-dicom-tag-0018-0088/1540 "2019-01-22T03:40:35Z")

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Hi, everyone I read a series of CT DICOM images using ITK. And I get the pixel spacing using the method like pixelSpacing = image-\>GetSpacing(); but the pixelSpacing\[2\] != spacing between slices from DICOM tag(0018, 0…

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## [mismatch detected for '\_ITERATOR\_DEBUG\_LEVEL': value '2' doesn't match value '0'](https://discourse.itk.org/t/mismatch-detected-for-iterator-debug-level-value-2-doesnt-match-value-0/1533)

<div class="topic-metadata">

**Author:** [@yode](https://discourse.itk.org/u/yode)\
**Replies:** 3\
**Last updated:** [January 19, 2019, 3:37pm UTC](https://discourse.itk.org/t/mismatch-detected-for-iterator-debug-level-value-2-doesnt-match-value-0/1533 "2019-01-19T15:37:46Z")

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I’m a opencv user, I’m first time to use this library. But I meet a problem when I run the first project in my vs2015. This is my screenshoot. Help me please: ps: Include Directories:D:\\soft\\itkbin\\include\\ITK-4.13 L…

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## [How to render an ITK spatial object?](https://discourse.itk.org/t/how-to-render-an-itk-spatial-object/1516)

<div class="topic-metadata">

**Author:** [@TaoH](https://discourse.itk.org/u/TaoH)\
**Replies:** 10\
**Last updated:** [January 18, 2019, 4:28pm UTC](https://discourse.itk.org/t/how-to-render-an-itk-spatial-object/1516 "2019-01-18T16:28:34Z")

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Dear everyone, I want to render an ITK spatial object. Is there a convenient to make it? Best and thanks, Tao Han

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## [Using SimpleITK to Convert Dicom to Nifiti With Misleading Series Tags](https://discourse.itk.org/t/using-simpleitk-to-convert-dicom-to-nifiti-with-misleading-series-tags/679)

<div class="topic-metadata">

**Author:** [@bsmarine](https://discourse.itk.org/u/bsmarine)\
**Replies:** 18\
**Last updated:** [January 17, 2019, 6:57pm UTC](https://discourse.itk.org/t/using-simpleitk-to-convert-dicom-to-nifiti-with-misleading-series-tags/679 "2019-01-17T18:57:10Z")

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Hi All, I’m trying to convert a CT abdomen triple-phase dicom data folder into nifti 3D data by series. The approach I’m using is below and works great, BUT for some of the data the slices are not in the correct order d…

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