# Community

**URL:** https://discourse.slicer.org/c/community/12.md?no_subcategories=false&page=7

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

**Page:** 8

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## [SlicerVMTK not building for SlicerPreview on cdash](https://discourse.slicer.org/t/slicervmtk-not-building-for-slicerpreview-on-cdash/42605)

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**Author:** [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Replies:** 6\
**Last updated:** [April 18, 2025, 2:37pm UTC](https://discourse.slicer.org/t/slicervmtk-not-building-for-slicerpreview-on-cdash/42605 "2025-04-18T14:37:56Z")

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SlicerVMTK is not building on cdash for SlicerPreview while it does build for SlicerStable. The error messages relate to the VMTK library itself. FYI, hoping for an investigation.

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## [2025.04.08 Weekly Meeting](https://discourse.slicer.org/t/2025-04-08-weekly-meeting/42486)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 1\
**Last updated:** [April 15, 2025, 2:04pm UTC](https://discourse.slicer.org/t/2025-04-08-weekly-meeting/42486 "2025-04-15T14:04:03Z")

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Today, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET, Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Please post to this thread to put…

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## [2025.04.01 Weekly Meeting](https://discourse.slicer.org/t/2025-04-01-weekly-meeting/42394)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 1\
**Last updated:** [April 15, 2025, 2:02pm UTC](https://discourse.slicer.org/t/2025-04-01-weekly-meeting/42394 "2025-04-15T14:02:07Z")

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Today, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET, Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Please post to this thread to put…

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## [2025.04.15 Weekly Meeting](https://discourse.slicer.org/t/2025-04-15-weekly-meeting/42574)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 1\
**Last updated:** [April 15, 2025, 1:41pm UTC](https://discourse.slicer.org/t/2025-04-15-weekly-meeting/42574 "2025-04-15T13:41:35Z")

</div>

Today, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET, Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Please post to this thread to put…

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## [Input Orientation and Axis Indexing in PyRadiomics (SimpleITK vs NumPy)](https://discourse.slicer.org/t/input-orientation-and-axis-indexing-in-pyradiomics-simpleitk-vs-numpy/42332)

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**Author:** [@valosekj](https://discourse.slicer.org/u/valosekj)\
**Replies:** 7\
**Last updated:** [April 11, 2025, 6:49pm UTC](https://discourse.slicer.org/t/input-orientation-and-axis-indexing-in-pyradiomics-simpleitk-vs-numpy/42332 "2025-04-11T18:49:37Z")

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Is there a specific orientation (axis order) expected by Pyradiomics when processing input images? I’m asking in the context of the opposite axes indexing between numpy/nibabel and SimpleITK : SimpleITK and numpy index…

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## [SlicerMorph ImageStacks ROI transformation yields incorrect cropping](https://discourse.slicer.org/t/slicermorph-imagestacks-roi-transformation-yields-incorrect-cropping/42525)

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**Author:** [@scutisorex](https://discourse.slicer.org/u/scutisorex)\
**Replies:** 2\
**Last updated:** [April 10, 2025, 4:01pm UTC](https://discourse.slicer.org/t/slicermorph-imagestacks-roi-transformation-yields-incorrect-cropping/42525 "2025-04-10T16:01:15Z")

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Hi all, I’m using ImageStacks to import ROIs of some larger CT stacks. I specified my ROI using Markups and transformed it to include only the portion of the scan I wanted (skull of the animal, see below). This included…

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## [Speed up Voxel based extraction](https://discourse.slicer.org/t/speed-up-voxel-based-extraction/14787)

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**Author:** [@Alessio\_Romita](https://discourse.slicer.org/u/Alessio_Romita)\
**Replies:** 4\
**Last updated:** [April 7, 2025, 9:41am UTC](https://discourse.slicer.org/t/speed-up-voxel-based-extraction/14787 "2025-04-07T09:41:07Z")

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Hey guys I was wondering if there is any way to speed up the voxel based extraction ? I’m trying to parallelise the extraction for multiple images and It works.But, the speed is too slow and of course if I parallelise to…

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## [3D slicer for confocal microscopy Z stack tiffs](https://discourse.slicer.org/t/3d-slicer-for-confocal-microscopy-z-stack-tiffs/42449)

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**Author:** [@Aro\_Nugawela](https://discourse.slicer.org/u/Aro_Nugawela)\
**Replies:** 1\
**Last updated:** [April 6, 2025, 2:38am UTC](https://discourse.slicer.org/t/3d-slicer-for-confocal-microscopy-z-stack-tiffs/42449 "2025-04-06T02:38:41Z")

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Sorry if I’ve posted in the wrong community/thread this is my first time on this forum. I have a series of confocal scanning sections across a 3D tissue models. Encoded into the metadata is the scaling of the images (x=…

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## [Covariate significance testing - What is it?](https://discourse.slicer.org/t/covariate-significance-testing-what-is-it/12118)

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**Author:** [@quentin\_devignes](https://discourse.slicer.org/u/quentin_devignes)\
**Replies:** 17\
**Last updated:** [April 4, 2025, 10:14am UTC](https://discourse.slicer.org/t/covariate-significance-testing-what-is-it/12118 "2025-04-04T10:14:18Z")

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Dear SlicerSALT team, We are analyzing parkinsonian patients with different cognitive profiles (4 groups in total) and we are interesting in studying shape deformations of subcortical structures between these groups. We…

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## [Mesh tube with non circular cross sections](https://discourse.slicer.org/t/mesh-tube-with-non-circular-cross-sections/41404)

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**Author:** [@Paula\_Feldman](https://discourse.slicer.org/u/Paula_Feldman)\
**Replies:** 1\
**Last updated:** [April 3, 2025, 9:24pm UTC](https://discourse.slicer.org/t/mesh-tube-with-non-circular-cross-sections/41404 "2025-04-03T21:24:15Z")

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Hi! I´m using vmtkCenterlineModeller and vmtkMarchingCubes to mesh a tubular centerline. Now instead of circular cross sections I have several radius values(a spline) for each centerline point. is there a vmtk script to …

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## [4DCT registration](https://discourse.slicer.org/t/4dct-registration/42423)

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**Author:** [@Cesar](https://discourse.slicer.org/u/Cesar)\
**Replies:** 1\
**Last updated:** [April 3, 2025, 2:10pm UTC](https://discourse.slicer.org/t/4dct-registration/42423 "2025-04-03T14:10:59Z")

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I’ve been trying to register 4DCT data, but it seems like I’m missing a step or doing something wrong. Here’s what I’ve been doing: Load the data of interest (static and dynamic). Segment the static data. Create partia…

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## [New volumes modules changes](https://discourse.slicer.org/t/new-volumes-modules-changes/42375)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 2\
**Last updated:** [April 1, 2025, 12:50pm UTC](https://discourse.slicer.org/t/new-volumes-modules-changes/42375 "2025-04-01T12:50:25Z")

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With the new changes introduced to the Volumes module that allow to invert the LUT, and map the selected LUT to historgram, I am finding making 3D renderings in the Slicer became much easier and faster. I start with the…

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## [2025.03.25 Weekly Meeting](https://discourse.slicer.org/t/2025-03-25-weekly-meeting/42295)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 2\
**Last updated:** [March 25, 2025, 1:44pm UTC](https://discourse.slicer.org/t/2025-03-25-weekly-meeting/42295 "2025-03-25T13:44:04Z")

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Today, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET, Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Please post to this thread to put…

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## [SlicerSALT tutorials are now in Read the Docs](https://discourse.slicer.org/t/slicersalt-tutorials-are-now-in-read-the-docs/42247)

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**Author:** [@bpaniagua](https://discourse.slicer.org/u/bpaniagua)\
**Replies:** 0\
**Last updated:** [March 21, 2025, 4:13pm UTC](https://discourse.slicer.org/t/slicersalt-tutorials-are-now-in-read-the-docs/42247 "2025-03-21T16:13:28Z")

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We have finally moved all of our tutorials to ReadTheDocs. Now it is much easier for you, our SlicerSALT community, to add to the documentation of its functionality. Looking forward to your contributions!!

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## [Multithreading/Multiprocessing in Pyradiomics](https://discourse.slicer.org/t/multithreading-multiprocessing-in-pyradiomics/42242)

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**Author:** [@annapurna11](https://discourse.slicer.org/u/annapurna11)\
**Replies:** 1\
**Last updated:** [March 21, 2025, 1:14pm UTC](https://discourse.slicer.org/t/multithreading-multiprocessing-in-pyradiomics/42242 "2025-03-21T13:14:59Z")

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Hi everyone! I am working on a project focussed on extraction of radiomic features (GLCM features) for prostrate cancer diagnosis. (Voxel-based). The code is too slow and single-threaded. Scanning of a single image takes…

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## [Cannot get mesh to show in interactive PC warps](https://discourse.slicer.org/t/cannot-get-mesh-to-show-in-interactive-pc-warps/42241)

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**Author:** [@christyhipsley](https://discourse.slicer.org/u/christyhipsley)\
**Replies:** 1\
**Last updated:** [March 21, 2025, 3:54am UTC](https://discourse.slicer.org/t/cannot-get-mesh-to-show-in-interactive-pc-warps/42241 "2025-03-21T03:54:57Z")

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Hi all, I’m fairly new to Slicer so forgive me if I’m missing something obvious. I loaded a previous GPA/PCA from geomorph into SlicerMorph, and everything looks fine. I can view the PC scatter plots, lollipop plots, an…

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## [2025.03.18 Weekly Meeting](https://discourse.slicer.org/t/2025-03-18-weekly-meeting/42198)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 1\
**Last updated:** [March 18, 2025, 1:50pm UTC](https://discourse.slicer.org/t/2025-03-18-weekly-meeting/42198 "2025-03-18T13:50:17Z")

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Today, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET, Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Please post to this thread to put…

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## [Create average model with shapevariationanalyzer](https://discourse.slicer.org/t/create-average-model-with-shapevariationanalyzer/3581)

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**Author:** [@aseman](https://discourse.slicer.org/u/aseman)\
**Replies:** 10\
**Last updated:** [March 17, 2025, 3:24pm UTC](https://discourse.slicer.org/t/create-average-model-with-shapevariationanalyzer/3581 "2025-03-17T15:24:07Z")

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Slicer version:4.8.1 Hi 3D slicer experts: I want to compare the average of two group models to each other, so I use the shapevariationanalyzer module for computing the average models . It computes the mean group for m…

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## [Importing covariates with "Load GPA + PCA  Analysis from File"?](https://discourse.slicer.org/t/importing-covariates-with-load-gpa-pca-analysis-from-file/42118)

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**Author:** [@christyhipsley](https://discourse.slicer.org/u/christyhipsley)\
**Replies:** 1\
**Last updated:** [March 14, 2025, 1:05am UTC](https://discourse.slicer.org/t/importing-covariates-with-load-gpa-pca-analysis-from-file/42118 "2025-03-14T01:05:46Z")

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Hi all. I used the geomorph2slicermorph2 command in the SlicerMorphR package to load the results of a gpa and pca with sliding landmarks from geomorph into 3D Slicer. I would like to use some of the visualisation options…

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## [2025.03.11 Weekly Meeting](https://discourse.slicer.org/t/2025-03-11-weekly-meeting/42070)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 1\
**Last updated:** [March 11, 2025, 1:35pm UTC](https://discourse.slicer.org/t/2025-03-11-weekly-meeting/42070 "2025-03-11T13:35:39Z")

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Today, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET, Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Please post to this thread to put…

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## [2025.03.04 Weekly Meeting](https://discourse.slicer.org/t/2025-03-04-weekly-meeting/41957)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 2\
**Last updated:** [March 4, 2025, 2:57pm UTC](https://discourse.slicer.org/t/2025-03-04-weekly-meeting/41957 "2025-03-04T14:57:24Z")

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Today, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET, Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Please post to this thread to put…

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## [Coronary arteries Asessment](https://discourse.slicer.org/t/coronary-arteries-asessment/41941)

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**Author:** [@Alberto\_Menini](https://discourse.slicer.org/u/Alberto_Menini)\
**Replies:** 0\
**Last updated:** [March 3, 2025, 2:01pm UTC](https://discourse.slicer.org/t/coronary-arteries-asessment/41941 "2025-03-03T14:01:55Z")

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Hello… Are there any advances in MSCT Coronary arteres asessment?. I mean asessment of coronary stenosis, thickness and remodelation wall analysis using Curved multiplanar reconstruction and calcium scoring (I know an o…

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## [2025.02.25 Weekly Meeting](https://discourse.slicer.org/t/2025-02-25-weekly-meeting/41873)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 3\
**Last updated:** [March 2, 2025, 10:55pm UTC](https://discourse.slicer.org/t/2025-02-25-weekly-meeting/41873 "2025-03-02T22:55:11Z")

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Today, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET, Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Please post to this thread to put…

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## [VMTK centerline merge does not work](https://discourse.slicer.org/t/vmtk-centerline-merge-does-not-work/36634)

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**Author:** [@tomo-akiyama](https://discourse.slicer.org/u/tomo-akiyama)\
**Replies:** 2\
**Last updated:** [February 27, 2025, 8:35pm UTC](https://discourse.slicer.org/t/vmtk-centerline-merge-does-not-work/36634 "2025-02-27T20:35:34Z")

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Hello, everyone I am encountering an issue while merging centerlines using VMTK, and I would appreciate some assistance. I used the “Extract Centerlines” module in 3D Slicer to extract centerlines from a cerebral vascu…

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## [Photogrammetry extension is released](https://discourse.slicer.org/t/photogrammetry-extension-is-released/41891)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 0\
**Last updated:** [February 27, 2025, 5:03am UTC](https://discourse.slicer.org/t/photogrammetry-extension-is-released/41891 "2025-02-27T05:03:37Z")

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We have released a new extension, Photogrammetry, that integrates SAM to mask foreground in large collections of photos of objects and then submit them to the OpenDroneMap (ODM) server that is launched locally to build 3…

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## [2025.02.18 Weekly Meeting](https://discourse.slicer.org/t/2025-02-18-weekly-meeting/41751)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 3\
**Last updated:** [February 25, 2025, 2:55pm UTC](https://discourse.slicer.org/t/2025-02-18-weekly-meeting/41751 "2025-02-25T14:55:42Z")

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Tomorrow, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET, Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Please post to this thread to …

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## [Background Processing on the Radiographs](https://discourse.slicer.org/t/background-processing-on-the-radiographs/41659)

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**Author:** [@Robert\_Chauvet](https://discourse.slicer.org/u/Robert_Chauvet)\
**Replies:** 1\
**Last updated:** [February 21, 2025, 3:21pm UTC](https://discourse.slicer.org/t/background-processing-on-the-radiographs/41659 "2025-02-21T15:21:53Z")

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Hi, Our group is having some difficulties making the 2D radiographs with enhanced edges in Autoscoper. We noticed that Autoscoper inverts the images, but we are wondering if there is any other background processing happ…

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## [How to creat a plane according 2 points](https://discourse.slicer.org/t/how-to-creat-a-plane-according-2-points/29710)

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**Author:** [@slicer365](https://discourse.slicer.org/u/slicer365)\
**Replies:** 11\
**Last updated:** [February 20, 2025, 7:39am UTC](https://discourse.slicer.org/t/how-to-creat-a-plane-according-2-points/29710 "2025-02-20T07:39:49Z")

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Dear friends I know there are many ways in slicer to creat a plane Then how to use two points to create a plane that passes through the middle point of these two points and is perpendicular to the line formed by the tw…

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## [2025.02.11 Weekly Meeting](https://discourse.slicer.org/t/2025-02-11-weekly-meeting/41615)

<div class="topic-metadata">

**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 2\
**Last updated:** [February 18, 2025, 3:01pm UTC](https://discourse.slicer.org/t/2025-02-11-weekly-meeting/41615 "2025-02-18T15:01:53Z")

</div>

Tomorrow, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET, Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Please post to this thread to …

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## [2025.02.04 Weekly Meeting - Back to regular time](https://discourse.slicer.org/t/2025-02-04-weekly-meeting-back-to-regular-time/41482)

<div class="topic-metadata">

**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 5\
**Last updated:** [February 11, 2025, 2:50pm UTC](https://discourse.slicer.org/t/2025-02-04-weekly-meeting-back-to-regular-time/41482 "2025-02-11T14:50:43Z")

</div>

Tomorrow, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET, Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Please post to this thread to …

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