Free Access
Astron. Astrophys. Suppl. Ser.
Volume 120, Number 1, November_II 1996
Page(s) 195 - 199
Published online 15 November 1996
Noise filtering in solar speckle masking reconstructions DOI: 10.1051/aas:1996285

Astronomy and Astrophysics Supplement Series, Vol. 120, November II 1996, 195-199

Noise filtering in solar speckle masking reconstructions

C.R. de Boer

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

Received June 20; accepted March 18, 1996


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.

Key words: techniques: image processing; interferometry --- Sun: general

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