Noise filtering in solar speckle masking reconstructions

Max–Planck–Institut für Aeronomie, Max–Planck–Str. 2, D-37191 Katlenburg-Lindau, Germany Universitäts–Sternwarte Göttingen, Geismarlandstr. 11, D-37083 Göttingen, Germany

Received: 20 June 1996
Accepted: 18 March 1996

Abstract

A new method of obtaining a sensitive noise filter for solar speckle masking reconstructions is presented below. This filter separates the true image information from noise most reliably. Its efficiency is demonstrated by some representative examples considering observed and artificial image data which were generated in a computer. The latter set of data also suffered realistic degradations by the influence of seeing and noise taken from suitable observations.