WaveLab is a library for wavelet analysis, wavelet- packet analysis, cosine-packet. This toolbox is developped by Holger Nahrstaedt and David Donoho. This toolbox is a Scilab port of the Matlab Wavelab toolbox developped at stanford.

The following plot is from the demo “FBI Fingerprint Compression”. The United States Federal Bureau of Investigation uses a fixed Wavelet Packet basis to compress fingerprints. Here we illustrate the compression of a sample fingerprint in this basis. The following script is the first part of the demo.

Download it on ATOMS.