regularizepsf

A package for manipulating and correcting variable point spread functions.

Below is an example of correcting model data using the package. An initial image of a simplified starfield (a) is synthetically observed with a slowly varying PSF (b), then regularized with this technique (c). The final image visually matches a direct convolution of the initial image with the target PSF (d). The panels are gamma-corrected to highlight the periphery of the model PSFs.

Getting started

pip install regularizepsf and then follow along with the documentation.

Contributing

We encourage all contributions. If you have a problem with the code or would like to see a new feature, please open an issue. Or you can submit a pull request.

If you're contributing code please see this package's development guide.

License

See LICENSE file

Need help?

Please ask a question in our discussions

Citation

Please cite the associated paper if you use this technique:

@article{Hughes_2023,
doi = {10.3847/1538-3881/acc578},
url = {https://dx.doi.org/10.3847/1538-3881/acc578},
year = {2023},
month = {apr},
publisher = {The American Astronomical Society},
volume = {165},
number = {5},
pages = {204},
author = {J. Marcus Hughes and Craig E. DeForest and Daniel B. Seaton},
title = {Coma Off It: Regularizing Variable Point-spread Functions},
journal = {The Astronomical Journal}
}

If you use this software, please also cite the package with the specific version used. Zenodo always has the most up-to-date citation.