Hello, I recently came across the Tutorials which have been released with the latest version of Siril. Thank you very much to the authors. I regard these as impressive, quite informative work and well written for astrophotography beginners (like me).
Concerning the section Image analysis - Dynamic PSF tool I have two questions, seeking advice:
a) What is the meaning of parameters B and A (math. formula)?
b) RMSE stands for root mean squared error - but error of what?
Appreciating your answers.