Im2mesh (2D or 3D image to finite element mesh)

Generate finite element mesh based on 2D or 3D multi-phase image. For image-based finite element analysis.

https://github.com/mjx888/im2mesh

Version 2.68.0 (22.7 MB)
1.7K Downloads
(4)
13 Jun 2026
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Cite As

Ma, Jiexian, and Yuanyuan Li. Im2mesh: A MATLAB/Octave Package for Generating Finite Element Mesh Based on 2D Multi-Phase Image. Zenodo, 2025, https://doi.org/10.5281/ZENODO.14847059.

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Once my paper is published, I will update a new DOI here.

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Find more on Convert Image Type in Help Center and MATLAB Answers

General Information

MATLAB Release Compatibility

  • Compatible with R2017b and later releases

Platform Compatibility

  • Windows
  • macOS
  • Linux
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Version Published Release Notes
2.68.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.68
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2.67.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.67
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2.66.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.66
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2.64.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.64
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2.63.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.63
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2.62.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.62
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2.61.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.61
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2.60.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.60
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2.51.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.51
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2.49.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.49
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2.47.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.47
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2.45.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.45
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2.42.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.42
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2.40.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.40
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2.36.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.36
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2.35.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.35
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2.33.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.33
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2.30.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.30
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2.26.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.26
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2.2.3

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/v2.2.3
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2.2.1

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/2.2.1
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2.2.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/2.2.0
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2.1.9

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/2.1.9
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2.1.8

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/2.1.8
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2.1.6

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/2.1.6
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2.1.5

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/2.1.5
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2.1.1

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/2.1.1
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2.1.0

See release notes for this release on GitHub: https://github.com/mjx888/im2mesh/releases/tag/2.1.0
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1.88.0

Update Description
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1.87.0

Update Description
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1.86.0

add note
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1.85.0

Add comments & description
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1.84.0

Revise Description
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1.83.0

Revise summary
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1.82.0

Update description
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1.81.0

Update description
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1.80.0

Add im2meshBuiltIn.m, poly2meshBuiltIn.m
Update examples
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1.76.0

improve getCtrlPnts
faster
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1.75.0

Add new parameter 'select_phase'
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1.71.0

Revise description
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1.7.0

Add two new parameters for mesh generation
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1.6.0

make im2Bounds() more readable using getExactBounds()
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1.5.0

improve im2Bounds.m and getCtrlPnts.m
significantly faster
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1.1.1

update description
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1.1.0

revise demo(), add examples
add several functions, like printInp_multiPart(), printInp_multiSect(), printBdf()
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0.9.0

Improve time efficiency of getCtrlPnts(). Faster. Add new parameter - tf_avoid_sharp_corner. Able to avoid non-convergence when meshing.
Rewrite getNodeEle(). Using global numbering.
Revise printInp(). Add new parameter - precision_nodecoor.
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0.8.2

new image for cover
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0.8.1

revise getCtrlPnts() for time efficiency
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0.8.0

debug
revise printInp(), support linear element and quadratic element
revise im2Bounds() and bwperimtrace(), for 4-connected neighbourhood
able to clear up redundant vertices that are brought about by delZeroAreaPoly
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0.7.0

debug
reorganize part of the code, increase readability
revise some comments
add calculation of polygon's area, polygon with zero area will be deleted automatically
update examples
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0.6.2

update description
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0.6.1

update description
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0.6.0

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To view or report issues in this GitHub add-on, visit the GitHub Repository.
To view or report issues in this GitHub add-on, visit the GitHub Repository.