# Latest

**URL:** https://discourse.itk.org/latest.md?page=103

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

**Page:** 104

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## [How to Contribute to SimpleITK Documentation](https://discourse.itk.org/t/how-to-contribute-to-simpleitk-documentation/823)

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**Author:** [@Diego\_C](https://discourse.itk.org/u/Diego_C)\
**Replies:** 3\
**Last updated:** [April 3, 2018, 7:32pm UTC](https://discourse.itk.org/t/how-to-contribute-to-simpleitk-documentation/823 "2018-04-03T19:32:43Z")

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## [What is the standard deviation (sigma) used to compute the Hessian in SimpleITK's ObjectnessMeasure](https://discourse.itk.org/t/what-is-the-standard-deviation-sigma-used-to-compute-the-hessian-in-simpleitks-objectnessmeasure/822)

<div class="topic-metadata">

**Author:** [@nicoco](https://discourse.itk.org/u/nicoco)\
**Replies:** 2\
**Last updated:** [April 3, 2018, 2:54pm UTC](https://discourse.itk.org/t/what-is-the-standard-deviation-sigma-used-to-compute-the-hessian-in-simpleitks-objectnessmeasure/822 "2018-04-03T14:54:16Z")

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Hello all, I’m trying to use the brand new SimpleITK procedural interface to the ObjectnessMeasureFilter. Since it automatically computes the Hessian Matrix of the image, I’d like to know which sigma value is used for …

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## [extracting a surface from a segmentation](https://discourse.itk.org/t/extracting-a-surface-from-a-segmentation/816)

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**Author:** [@ibr](https://discourse.itk.org/u/ibr)\
**Replies:** 3\
**Last updated:** [April 2, 2018, 8:45pm UTC](https://discourse.itk.org/t/extracting-a-surface-from-a-segmentation/816 "2018-04-02T20:45:22Z")

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Hi, Is there a any itk filter to do this? I tried getting the edges but the surface was not good despite a good manual segmentation. By surface I mean the outer border of a 3D object (the contor). e.g. if I have a hand …

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## [runtime error itk::ProcessObject::SetInput was part of the deprecated API](https://discourse.itk.org/t/runtime-error-itk-processobject-setinput-was-part-of-the-deprecated-api/792)

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**Author:** [@ibr](https://discourse.itk.org/u/ibr)\
**Replies:** 2\
**Last updated:** [March 30, 2018, 4:26pm UTC](https://discourse.itk.org/t/runtime-error-itk-processobject-setinput-was-part-of-the-deprecated-api/792 "2018-03-30T16:26:43Z")

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Hi I got a runtime error related to this: \`the method itk::ProcessObject::SetInput was part of the deprecated API.\` Where can change to make it works? nothing related is mentioned \[here\] (https://itk.org/Wiki/ITK/Rele…

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## [InsightSoftwareConsortium GitHub Community Team](https://discourse.itk.org/t/insightsoftwareconsortium-github-community-team/811)

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**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\
**Replies:** 25\
**Last updated:** [March 30, 2018, 3:53pm UTC](https://discourse.itk.org/t/insightsoftwareconsortium-github-community-team/811 "2018-03-30T15:53:13Z")

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## [Reading an image with five components](https://discourse.itk.org/t/reading-an-image-with-five-components/815)

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**Author:** [@cyril.mory](https://discourse.itk.org/u/cyril.mory)\
**Replies:** 2\
**Last updated:** [March 30, 2018, 2:30pm UTC](https://discourse.itk.org/t/reading-an-image-with-five-components/815 "2018-03-30T14:30:57Z")

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Hi everyone, I’m trying to read an image with 5 components with itk::ImageFileReader, but it crashes with the following message: terminate called after throwing an instance of ‘itk::ExceptionObject’ what(): /home/mor…

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## [Are the vectors defining the Direction of a SimpleITK image normalized?](https://discourse.itk.org/t/are-the-vectors-defining-the-direction-of-a-simpleitk-image-normalized/810)

<div class="topic-metadata">

**Author:** [@Diego\_C](https://discourse.itk.org/u/Diego_C)\
**Replies:** 1\
**Last updated:** [March 30, 2018, 1:15pm UTC](https://discourse.itk.org/t/are-the-vectors-defining-the-direction-of-a-simpleitk-image-normalized/810 "2018-03-30T13:15:58Z")

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HI! I would like to know if the vectors that define the Direction of a SimpleITK image are normalized or not. I am trying to use the method SetDirection but the documentation is not clear about this: \[image\] Whereas i…

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## [Sad state of the dashboard](https://discourse.itk.org/t/sad-state-of-the-dashboard/793)

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**Author:** [@seanm](https://discourse.itk.org/u/seanm)\
**Replies:** 16\
**Last updated:** [March 29, 2018, 9:06pm UTC](https://discourse.itk.org/t/sad-state-of-the-dashboard/793 "2018-03-29T21:06:46Z")

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Hi all, Almost all the Mac builds on the dashboard are red, and have been for weeks now. Mine have been red since 2018-03-08. They used to build. Isn’t the idea that if one commits something one must watch the dashbo…

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## [Gearing up for ITK5](https://discourse.itk.org/t/gearing-up-for-itk5/515)

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**Author:** [@dzenanz](https://discourse.itk.org/u/dzenanz)\
**Replies:** 7\
**Last updated:** [January 5, 2018, 4:42pm UTC](https://discourse.itk.org/t/gearing-up-for-itk5/515 "2018-01-05T16:42:27Z")

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After a prolonged discussion over the years, and following the recent discussion, during confab meeting on December 8th, we (@matt.mccormick @fbudin @blowekamp @hjmjohnson and @dzenanz) agreed that the time is right to s…

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## [How to crop a 3D image with a specified size?](https://discourse.itk.org/t/how-to-crop-a-3d-image-with-a-specified-size/715)

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**Author:** [@srbn.ghosh89](https://discourse.itk.org/u/srbn.ghosh89)\
**Replies:** 10\
**Last updated:** [March 29, 2018, 1:50pm UTC](https://discourse.itk.org/t/how-to-crop-a-3d-image-with-a-specified-size/715 "2018-03-29T13:50:08Z")

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HI, I have a 3D image stacked with 2D images. I want to crop the image in the middle. Can you give me some examples to do it using ITK?

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## [Integrating with a PACS system](https://discourse.itk.org/t/integrating-with-a-pacs-system/805)

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**Author:** [@Fijoy\_Vadakkumpadan](https://discourse.itk.org/u/Fijoy_Vadakkumpadan)\
**Replies:** 3\
**Last updated:** [March 28, 2018, 8:37pm UTC](https://discourse.itk.org/t/integrating-with-a-pacs-system/805 "2018-03-28T20:37:20Z")

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Hello, Does ITK provide APIs or classes that I can use to communicate with a PACS/DICOM server? If not, does the GDCM library that ships with ITK provide this functionality? If yes either way, do we have C++ examples so…

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## [SimpleITK 1.1.0 Release](https://discourse.itk.org/t/simpleitk-1-1-0-release/804)

<div class="topic-metadata">

**Author:** [@blowekamp](https://discourse.itk.org/u/blowekamp)\
**Replies:** 7\
**Last updated:** [March 28, 2018, 5:55pm UTC](https://discourse.itk.org/t/simpleitk-1-1-0-release/804 "2018-03-28T17:55:46Z")

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We are pleased to announce the SimpleITK 1.1 Release! Installing SimpleITK Complete instructions on getting started with SimpleITK including downloading binaries or building SimpleITK can be found on the SimpleITK Read …

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## [Is MultiScaleHessianBasedMeasureImageFilter in python bindings?](https://discourse.itk.org/t/is-multiscalehessianbasedmeasureimagefilter-in-python-bindings/794)

<div class="topic-metadata">

**Author:** [@nicoco](https://discourse.itk.org/u/nicoco)\
**Replies:** 10\
**Last updated:** [March 28, 2018, 4:16pm UTC](https://discourse.itk.org/t/is-multiscalehessianbasedmeasureimagefilter-in-python-bindings/794 "2018-03-28T16:16:19Z")

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Hello, I need to use the MultiScaleHessianBasedMeasureImageFilter in python. In the past I was using a compiled-by-me version of ITK with python bindings and my scripts were doing fine. I recently switched to the pytho…

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## [ITK Python package for ppc64le (POWER8)](https://discourse.itk.org/t/itk-python-package-for-ppc64le-power8/774)

<div class="topic-metadata">

**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\
**Replies:** 1\
**Last updated:** [March 27, 2018, 9:54pm UTC](https://discourse.itk.org/t/itk-python-package-for-ppc64le-power8/774 "2018-03-27T21:54:50Z")

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An experimental ITK Python package is available for the ppc64le architecture, i.e. the POWER8 processor. To install, Download the wheel package. Install via python -m pip install /path/to/itk-4.13.0-cp27-cp27mu-linux\_…

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## [Mix Shared and Static Libraries to Reduce Bloat?](https://discourse.itk.org/t/mix-shared-and-static-libraries-to-reduce-bloat/795)

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**Author:** [@spinicist](https://discourse.itk.org/u/spinicist)\
**Replies:** 11\
**Last updated:** [March 26, 2018, 7:33pm UTC](https://discourse.itk.org/t/mix-shared-and-static-libraries-to-reduce-bloat/795 "2018-03-26T19:33:58Z")

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Hi, My repo is here: https://github.com/spinicist/QUIT. This builds a decent number of smallish command-line programs. With static linking, each one ends up ~10 megs in size. However, the majority of that size is ITK co…

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## [resampling with simpleitk](https://discourse.itk.org/t/resampling-with-simpleitk/790)

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**Author:** [@Diego\_C](https://discourse.itk.org/u/Diego_C)\
**Replies:** 5\
**Last updated:** [March 21, 2018, 9:09pm UTC](https://discourse.itk.org/t/resampling-with-simpleitk/790 "2018-03-21T21:09:59Z")

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Hi iTK! I am new to SimpleITK and I am working in Python. I have a NRRD volume that I want to reslice according to the origin,spacing and dimensions of a second NRRD volume. I am trying to figure this out. Is there a wa…

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## [Addressing "itkIndex.h:391:27: warning: array subscript is above array bound"](https://discourse.itk.org/t/addressing-itkindex-h-391-27-warning-array-subscript-is-above-array-bound/785)

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**Author:** [@blowekamp](https://discourse.itk.org/u/blowekamp)\
**Replies:** 1\
**Last updated:** [March 21, 2018, 6:11pm UTC](https://discourse.itk.org/t/addressing-itkindex-h-391-27-warning-array-subscript-is-above-array-bound/785 "2018-03-21T18:11:39Z")

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On the CircleCi builds we are getting large number of error like this: In file included from /ITK/Modules/Core/Common/include/itkContinuousIndex.h:22:0, | constexpr size\_type size() const …

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## [Suggestions for the Insight Journal](https://discourse.itk.org/t/suggestions-for-the-insight-journal/784)

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**Author:** [@phcerdan](https://discourse.itk.org/u/phcerdan)\
**Replies:** 3\
**Last updated:** [March 20, 2018, 6:33pm UTC](https://discourse.itk.org/t/suggestions-for-the-insight-journal/784 "2018-03-20T18:33:12Z")

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The goal of the Insight Journal, and its commitment with open science and reproducibility is superb. But it could catch up in some areas from my point of view: Give each article a DOI. This could be used to link it fro…

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## [New ISC members added to the Board of Directors](https://discourse.itk.org/t/new-isc-members-added-to-the-board-of-directors/780)

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**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\
**Replies:** 0\
**Last updated:** [March 18, 2018, 7:07pm UTC](https://discourse.itk.org/t/new-isc-members-added-to-the-board-of-directors/780 "2018-03-18T19:07:37Z")

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We are happy to welcome new members voted into the Insight Software Consortium (ISC) Board of Directors: Andras Lasso - Queen’s University - @lassoan Jon Haitz Legarreta Gorroño - Open Science Enthusiast - @jhlegarret…

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## [Other compile errors](https://discourse.itk.org/t/other-compile-errors/779)

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**Author:** [@melrobin](https://discourse.itk.org/u/melrobin)\
**Replies:** 1\
**Last updated:** [March 18, 2018, 7:49pm UTC](https://discourse.itk.org/t/other-compile-errors/779 "2018-03-18T19:49:35Z")

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I am trying to build ITK by gradually turning on more features and have run into some more errors: /home/melrobin/packages/ITK/Modules/Remote/ParabolicMorphology/include/itkParabolicErodeDilateImageFilter.hxx: In member…

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## [Updated the wikipedia ITK article](https://discourse.itk.org/t/updated-the-wikipedia-itk-article/777)

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**Author:** [@jhlegarreta](https://discourse.itk.org/u/jhlegarreta)\
**Replies:** 3\
**Last updated:** [March 18, 2018, 6:56pm UTC](https://discourse.itk.org/t/updated-the-wikipedia-itk-article/777 "2018-03-18T18:56:54Z")

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Folks, I landed on the wikipedia ITK article a couple of days ago, and updated it: updated the latest release version, updated the logo, the logo author, added external links, updated the examples to the current C++ sta…

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## [ITK-4.13 tests failing (and I can't report is as bug)](https://discourse.itk.org/t/itk-4-13-tests-failing-and-i-cant-report-is-as-bug/687)

<div class="topic-metadata">

**Author:** [@gerddie](https://discourse.itk.org/u/gerddie)\
**Replies:** 4\
**Last updated:** [March 18, 2018, 5:42pm UTC](https://discourse.itk.org/t/itk-4-13-tests-failing-and-i-cant-report-is-as-bug/687 "2018-03-18T17:42:48Z")

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Hi, I would report this as bug, but for some reason the issue tracker doesn’t let me log in (even though I can reset the password - filed a support ticked with Atlassian), so I report it here: When I try to build ITK …

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## [ITK build problems](https://discourse.itk.org/t/itk-build-problems/766)

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**Author:** [@melrobin](https://discourse.itk.org/u/melrobin)\
**Replies:** 3\
**Last updated:** [March 16, 2018, 2:58pm UTC](https://discourse.itk.org/t/itk-build-problems/766 "2018-03-16T14:58:49Z")

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I would have put this in the issues tracker, but it appears to be down. There have been some recent changes on the github.com version of ITK and I can no longer build. In particular the errors relate to the ExceptionOb…

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## [PeriodicBoundaryCondition](https://discourse.itk.org/t/periodicboundarycondition/698)

<div class="topic-metadata">

**Author:** [@spinicist](https://discourse.itk.org/u/spinicist)\
**Replies:** 14\
**Last updated:** [March 15, 2018, 2:47pm UTC](https://discourse.itk.org/t/periodicboundarycondition/698 "2018-03-15T14:47:53Z")

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Hello, Is there an example of how to use a PeriodicBoundaryCondition anywhere? I had hoped it was as simple as changing the definition of my NeighborhoodIterator to ConstNeighborhoodIterator\<TImage, PeriodicBoundaryCon…

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## [SimpleITK 1.1 Release Candidate 2](https://discourse.itk.org/t/simpleitk-1-1-release-candidate-2/771)

<div class="topic-metadata">

**Author:** [@blowekamp](https://discourse.itk.org/u/blowekamp)\
**Replies:** 0\
**Last updated:** [March 14, 2018, 6:28pm UTC](https://discourse.itk.org/t/simpleitk-1-1-release-candidate-2/771 "2018-03-14T18:28:52Z")

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For this Release Candidate we have added Conda packages in addition to the Python wheels. Please download and test the new RC! Announcement We are pleased to announce SimpleITK 1.1 Release candidate 2. Release Notes Pl…

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## [New to ITK, facing 2 errors while compiling](https://discourse.itk.org/t/new-to-itk-facing-2-errors-while-compiling/769)

<div class="topic-metadata">

**Author:** [@harshameshram08](https://discourse.itk.org/u/harshameshram08)\
**Replies:** 4\
**Last updated:** [March 14, 2018, 3:05pm UTC](https://discourse.itk.org/t/new-to-itk-facing-2-errors-while-compiling/769 "2018-03-14T15:05:02Z")

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Sir, I am new to ITK 4.13.0 software and using Cmake 3.10.2 to build itk but facing 2 errors while configuring it. Two errors are as follows CMake Error at Modules/ThirdParty/VNL/src/vxl/config/cmake/config/VXLIntros…

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## [Query regarding implementation of itkGeometricJacobianDeterminantImageFilter.hxx](https://discourse.itk.org/t/query-regarding-implementation-of-itkgeometricjacobiandeterminantimagefilter-hxx/748)

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**Author:** [@Mageshwar](https://discourse.itk.org/u/Mageshwar)\
**Replies:** 2\
**Last updated:** [March 14, 2018, 1:49pm UTC](https://discourse.itk.org/t/query-regarding-implementation-of-itkgeometricjacobiandeterminantimagefilter-hxx/748 "2018-03-14T13:49:50Z")

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I want to have a deeper insight into the implementation of jacobian determinant in itkGeometricJacobianDeterminantImageFilter.hxx, but I’m unable to find some theory which explains on what basis this code is implemented.…

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## [ITK 4.13 changes](https://discourse.itk.org/t/itk-4-13-changes/757)

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**Author:** [@mstaring](https://discourse.itk.org/u/mstaring)\
**Replies:** 6\
**Last updated:** [March 14, 2018, 9:15am UTC](https://discourse.itk.org/t/itk-4-13-changes/757 "2018-03-14T09:15:12Z")

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Hi all, Our image registration software elastix depends on ITK. I recently updated the ITK version from ITK 4.12 to 4.13 and noticed this changed the results in some of our regression tests: https://my.cdash.org/viewTe…

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## [Stopped getting Discourse e-mail?](https://discourse.itk.org/t/stopped-getting-discourse-e-mail/749)

<div class="topic-metadata">

**Author:** [@blowekamp](https://discourse.itk.org/u/blowekamp)\
**Replies:** 3\
**Last updated:** [March 13, 2018, 10:04pm UTC](https://discourse.itk.org/t/stopped-getting-discourse-e-mail/749 "2018-03-13T22:04:48Z")

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I have “Enabled mailing list mode” in my profile, but I have stopped getting e-mail. Is any one else still getting e-mails? I am not sure if it is a problem with discourse or if it has been classified as spam here. Th…

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## [Write to output volume slice by slice or subvolume by subvolume in a pipeline](https://discourse.itk.org/t/write-to-output-volume-slice-by-slice-or-subvolume-by-subvolume-in-a-pipeline/760)

<div class="topic-metadata">

**Author:** [@hellman](https://discourse.itk.org/u/hellman)\
**Replies:** 1\
**Last updated:** [March 13, 2018, 1:19pm UTC](https://discourse.itk.org/t/write-to-output-volume-slice-by-slice-or-subvolume-by-subvolume-in-a-pipeline/760 "2018-03-13T13:19:59Z")

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Hi all, I have 3D data on which I want to do operations that are independent of each other along the third dimension. I could for example work independently on 2D slices in the two first dimensions or on subvolumes whic…

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