First Steps towards the Denoising of MICA's Images Using Wavelets

FERNANDO MARCELO LÓPEZ; LAURA BALMACEDA; CASTRO, JOSÉ IGNACIO; FRANCILE, CARLOS

San Juan

Otro; 5th “El Leoncito” International Solar Physics School; 2011

The observation of the solar corona from ground based telescopes is very difficult. The main source of noise is the variability of the background intensity (sky) due to the atmospheric conditions at the site of observation. Furthermore, the residual scattered light inside the instrument also affect the images. A precise detection of coronal structures like loops and dynamical events require images with both, high spatial and temporal resolution. We present here the first results in the development of a method to clean and enhance MICA´s images. This technique employs a multi-level decomposition via the 2D "à trous" wavelet.