# \#elastix **URL:** https://discourse.itk.org/tag/elastix/168.md [Latest](https://discourse.itk.org/latest.md) · [Categories](https://discourse.itk.org/categories.md) · [Tags](https://discourse.itk.org/tags.md) --- ## [elastix Affine Registration Web App: Image Registration That Runs in Your Browser](https://discourse.itk.org/t/elastix-affine-registration-web-app-image-registration-that-runs-in-your-browser/7802)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 2\ **Last updated:** [October 9, 2026, 8:02am UTC](https://discourse.itk.org/t/elastix-affine-registration-web-app-image-registration-that-runs-in-your-browser/7802 "2026-10-09T08:02:45Z")
Hi everyone, We’re happy to announce a new web app for affine image registration with elastix. It runs entirely in your web browser: insightsoftwareconsortium.github.io/ITKElastix You don’t need to install anything, c… --- ## [Different BSpline fixed-parameters for equal-sized images?](https://discourse.itk.org/t/different-bspline-fixed-parameters-for-equal-sized-images/7768)
**Author:** [@reox](https://discourse.itk.org/u/reox)\ **Replies:** 6\ **Last updated:** [June 9, 2026, 6:51am UTC](https://discourse.itk.org/t/different-bspline-fixed-parameters-for-equal-sized-images/7768 "2026-06-09T06:51:07Z")
I started with a very simple registration pipeline, basically like this: import itk fixed\_image = itk.imread('fixed.mhd', itk.F) moving\_image = itk.imread('moving.mhd', itk.F) fixed\_mask = itk.imread("fixed\_mask.mhd",… --- ## [~8x slower registration with itk-elastix Python API vs elastix CLI — minimal reproducible example](https://discourse.itk.org/t/8x-slower-registration-with-itk-elastix-python-api-vs-elastix-cli-minimal-reproducible-example/7736)
**Author:** [@NicoKiaru](https://discourse.itk.org/u/NicoKiaru)\ **Replies:** 39\ **Last updated:** [June 5, 2026, 7:14pm UTC](https://discourse.itk.org/t/8x-slower-registration-with-itk-elastix-python-api-vs-elastix-cli-minimal-reproducible-example/7736 "2026-06-05T19:14:41Z")
Disclaimer: this is a \[crosspost from image.sc\]( ~8x slower registration with itk-elastix Python API vs elastix CLI — minimal reproducible example - Usage & Issues - Image.sc Forum ) Hi all, I’m integrating itk-elastix… --- ## [Elastix WeightedCombinationTransform](https://discourse.itk.org/t/elastix-weightedcombinationtransform/7568)
**Author:** [@Sylvester\_Wu](https://discourse.itk.org/u/Sylvester_Wu)\ **Replies:** 2\ **Last updated:** [June 23, 2025, 4:14pm UTC](https://discourse.itk.org/t/elastix-weightedcombinationtransform/7568 "2025-06-23T16:14:45Z")
Hi Everyone, I’m very new to ITK and elastix. I have a set of 2-channel images of Tetraspeck fiducial beads in green and far red fluorescence and would like to register the two channels relative to each other for subseq… --- ## [Cancel ElastixImageFilter.Execute()](https://discourse.itk.org/t/cancel-elastiximagefilter-execute/6634)
**Author:** [@G\_Y](https://discourse.itk.org/u/G_Y)\ **Replies:** 2\ **Last updated:** [June 20, 2024, 9:45pm UTC](https://discourse.itk.org/t/cancel-elastiximagefilter-execute/6634 "2024-06-20T21:45:51Z")
Hi, I have a program that sets up and calls ElastixImageFilter.Execute() from SimpleITK library when the user clicks the “Apply” button, it works fine, however sometimes the user changes mind and wants to cancel the on-g… --- ## [Setting an Initial Transform for Elastix](https://discourse.itk.org/t/setting-an-initial-transform-for-elastix/6532)
**Author:** [@lschuring](https://discourse.itk.org/u/lschuring)\ **Replies:** 1\ **Last updated:** [March 19, 2024, 8:33pm UTC](https://discourse.itk.org/t/setting-an-initial-transform-for-elastix/6532 "2024-03-19T20:33:51Z")
Hi ITK community! I am setting up a pipeline in python to register MRI image stacks which tend to have poor initial alignment. I would like to provide an elastix image filter (sitk.ElastixImageFilter()) an initial trans… --- ## [Unable to perform simple image registration](https://discourse.itk.org/t/unable-to-perform-simple-image-registration/6053)
**Author:** [@sarthakpati](https://discourse.itk.org/u/sarthakpati)\ **Replies:** 1\ **Last updated:** [July 11, 2023, 2:48pm UTC](https://discourse.itk.org/t/unable-to-perform-simple-image-registration/6053 "2023-07-11T14:48:12Z")
Hi, Duplicate of Unable to perform simple image registration · Issue #1956 · SimpleITK/SimpleITK · GitHub, as I was directed to ask the question here. I am using SimpleITK-SimpleElastix since SimpleITK-2.2.1 seem to gi… --- ## [ITKElastix 0.16.0 has been released!](https://discourse.itk.org/t/itkelastix-0-16-0-has-been-released/5736)
**Author:** [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\ **Replies:** 0\ **Last updated:** [February 21, 2023, 3:30pm UTC](https://discourse.itk.org/t/itkelastix-0-16-0-has-been-released/5736 "2023-02-21T15:30:06Z")
By: Matt McCormick , Niels Dekker , Konstantinos Ntatsis, Marius Staring We are exceedingly pleased to announce the release of ITKElastix 0.16.0, an ITK module that provides Python and C++ interfaces to elastix, a tool… --- ## [SimpleITK 2.2.0 Release](https://discourse.itk.org/t/simpleitk-2-2-0-release/5307)
**Author:** [@blowekamp](https://discourse.itk.org/u/blowekamp)\ **Replies:** 0\ **Last updated:** [August 30, 2022, 4:03pm UTC](https://discourse.itk.org/t/simpleitk-2-2-0-release/5307 "2022-08-30T16:03:18Z")
SimpleITK 2.2.0 has been released! The release includes new features, API changes, documentation updates and bug fixes. A highlight of this release is the addition of SimpleElastix as a compile time option in SimpleITK… --- ## [SimpleITK 2.2 Release Candidate 4](https://discourse.itk.org/t/simpleitk-2-2-release-candidate-4/5226)
**Author:** [@blowekamp](https://discourse.itk.org/u/blowekamp)\ **Replies:** 6\ **Last updated:** [August 1, 2022, 5:19pm UTC](https://discourse.itk.org/t/simpleitk-2-2-release-candidate-4/5226 "2022-08-01T17:19:50Z")
Announcing the SimpleITK 2.2 Release Candidate 4! Users and developers are encouraged to test the RC before the final release and report issues, bugs, and any compatibility problems. This is the final RC before the 2.2 … --- ## [Installation of ITKElastix with pip](https://discourse.itk.org/t/installation-of-itkelastix-with-pip/4936)
**Author:** [@edgar](https://discourse.itk.org/u/edgar)\ **Replies:** 2\ **Last updated:** [April 26, 2022, 9:44am UTC](https://discourse.itk.org/t/installation-of-itkelastix-with-pip/4936 "2022-04-26T09:44:58Z")
Hello! I tried to look into ITKElastix. As posted on the repository, I did pip install itk-elastix but I also installed TubeTK, ITKStrain, SciPy, Scikit-image and Scikit-learn pip install itk-tubetk itk-strain pip in… --- ## [Is it possible to apply a fraction of the transformation that obtained from the registration ?! (Elastix, and Transform)](https://discourse.itk.org/t/is-it-possible-to-apply-a-fraction-of-the-transformation-that-obtained-from-the-registration-elastix-and-transform/4591)
**Author:** [@Alsurayhi](https://discourse.itk.org/u/Alsurayhi)\ **Replies:** 3\ **Last updated:** [November 18, 2021, 7:25pm UTC](https://discourse.itk.org/t/is-it-possible-to-apply-a-fraction-of-the-transformation-that-obtained-from-the-registration-elastix-and-transform/4591 "2021-11-18T19:25:05Z")
I have lung CT data. I apply a deformable registration to align the inspiration scan to the expiration scan. I got the registered image and the transformationParamters. I used (transformix -def all) to get the deformati… --- ## [Direction/Orientation matrix DICOM vs Nifti](https://discourse.itk.org/t/direction-orientation-matrix-dicom-vs-nifti/3289)
**Author:** [@rcorredorj](https://discourse.itk.org/u/rcorredorj)\ **Replies:** 5\ **Last updated:** [July 16, 2020, 3:41pm UTC](https://discourse.itk.org/t/direction-orientation-matrix-dicom-vs-nifti/3289 "2020-07-16T15:41:50Z")
Hi everyone, I’m having discrepancies between the orientation matrix read from DICOMs or from a Nifti generated from the same DICOM series. I’d like to understand what is going on. I have a DICOM series that I read in …