Welcome to regularizepsf!#
regularizepsf is a Python package (with Cython speed improvements) for determining and correcting point spread functions in astronomical images. It was originally developed for the PUNCH mission and is documented in an Astronomical Journal paper.
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.
