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sunkit-image

v0.7.0
Code Docs DOI
Citation

Software

Concise Description
An image processing toolbox for Solar Physics.
Description
sunkit-image is an open-source toolbox for solar physics image processing. It is an experimental library for solar physics specific image processing routines. The package contains image processing algorithms that have been published in the literature, including Multi-scale Gaussian Normalization (MGN), radial gradient filters (FNRGF, NRGF, RHEF), Automated Swirl Detection Algorithm (ASDA), Sunspot Tracking And Recognition Algorithm (STARA), granule segmentation, loop/structure tracing, image coalignment routines, time lag cross-correlation analysis, and Wavelets Optimized Whitening (WOW).
Authors
Saksham Alok
Will Barnes ( American University , Department of Physics, American University , Goddard Space Flight Center , United States Naval Research Laboratory )
Samuel Bennett ( Aperio Software Ltd. , University of Sheffield )
Vatsalya Chaubey
Jayraj Dulange ( Indian Institute of Technology Gandhinagar )
Frédéric Auchère ( Institut d'Astrophysique Spatiale, Université Paris-Sud )
Nabil Freij ( Bay Area Environmental Research Institute , Lockheed Martin Solar and Astrophysics Laboratory , SETI Institute )
Ghaith Kdimati ( Cairo University )
Chris R. Gilly ( Southwest Research Institute )
Laura Hayes ( Dublin Institute for Advanced Studies , European Space Research and Technology Centre )
Jack Ireland ( Goddard Space Flight Center )
Michael Kirk ( Catholic University of America , Goddard Space Flight Center )
Pey Lian Lim ( Space Telescope Science Institute )
Abinash Mahapatra ( Odisha University of Technology and Research )
Stuart J. Mumford ( Aperio Software Ltd. , University of Sheffield )
Jeffrey Aaron Paul ( Dayananda Sagar College of Engineering, Bangalore )
David Stansby ( Advanced Research Computing Centre, University College London, UK , Department of Mechanical Engineering, University College London , Imperial College London , Mullard Space Science Laboratory, University College London , University College London )
Matt Wentzel-Long ( Stark State College )
Leah Zuckerman
Functionality
Data Processing and Analysis Analysis Image Processing Time Series Analysis Wavelet Analysis Data Visualization 2D Graphics
Technical Details
Programming Languages Python 3.x
Operating Systems Linux Mac Windows
CPU Architecture CPU Independent
Development Status Active
Publication Date Nov 01, 2017
Publisher Zenodo
Data & File Formats
Input Formats FITS
Output Formats FITS
Science Context
Related Instruments Atmospheric Imaging Assembly HMI
Related Observatories Solar Dynamics Observatory
Related Phenomena Coronal Heating Solar Corona Solar Flares
Related Regions Corona Photosphere Solar Environment
Keywords
data analysis image analysis pyhc package science solar solar physics
Related Items

Related Publications

https://doi.org/10.1007/s11207-023-02183-w
https://doi.org/10.1007/s11207-025-02578-x
https://doi.org/10.1016/j.newast.2026.102554
https://doi.org/10.1051/0004-6361/202245345
https://doi.org/10.1051/0004-6361/202555618
https://doi.org/10.1051/0004-6361/202557009
https://doi.org/10.1093/mnras/stag1416
https://doi.org/10.3389/fspas.2023.1076726
https://doi.org/10.3847/1538-4357/adccc8

Related Software

https://git.ias.u-psud.fr/fauchere/wavelets
https://github.com/sunpy/sunpy

Interoperable Software

https://github.com/dask/dask
https://github.com/sunpy/pyflct
https://github.com/sunpy/sunpy
Licensing & Funding
License BSD 2-Clause "Simplified" License
Version Information
Current Version v0.7.0
Release Date Mar 19, 2026
Version DOI https://doi.org/10.5281/zenodo.19338616
Release Notes
Breaking changes: Increased the minimum required versions — Python 3.12 (from 3.10), Matplotlib 3.8.0 (from 3.5.0), sunpy 7.0.0 (from 6.0.0), NumPy 1.26.0 (from 1.23.5), Astropy 6.1.0 (from 5.3.0), SciPy 1.12.0 (from 1.10.1). The previous coalignment API has been deleted and replaced with a new set of imports and functions.
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