scilab-swt binary package in Ubuntu Precise i386

 Wavelet is a powerful signal processing tool developed and developing
 in the last two decades. Scilab Wavelet Toolbox is a free software package
 to enable you using wavelet analysis tools freely in Scilab on most OSes
 including GNU/Linux, BSD and Windows. Scilab Wavelet Toolbox is designed
 to work with any Scilab Image Processing Toolbox like SIP or SIVP
 for displaying 2-D results.
 .
 What Scilab Wavelet Toolbox supposed to do:
  * Discrete Fast Wavelet Transform, daubechies wavelets
  * 1-D single level signal decomposition and reconstruction
  * 1-D multi-level signal decomposition and reconstruction
  * 2-D single level image decomposition and reconstruction
  * 2-D multi-level image decomposition and reconstruction

Source package