AllStarFit: R package for source detection, PSF and multi-component galaxy fitting

AllStarFit analyzes optical and infrared images and includes functions for:

- object detection and image segmentation using the ProFound package (ascl:1804.006);

- PSF determination using the ProFit package (ascl:1612.004) to fit multiple stars in the field simultaneously; and

- galaxy modelling with ProFit, using the previously determined PSF and user-specified models.

AllStarFit supports a variety of optimization methods (provided by external packages), including maximum-likelihood and Markov chain Monte Carlo (MCMC).