For the de-noising methods presented in Sect. 3.1 (click here) the following software packages were used: The wavelet shrinkage technique of Donoho and co-workers is available through anonymous ftp from playfair.stanford.edu for the MatLab environment. The method presented by Bury et al. (1996) is also freely accessible at location holst.obs-nice.fr:/pub/wavelet.tar.gz.
Of special interest for astronomical data-processing is MIDAS, the Munich Image Data Analysis System developed at ESO. It provides a number of data analysis and de-noising routines based on different wavelet bases. In particluar, it includes the de-noising methods of Starck & Bijaoui.