orthogonal wavelet filter set
[Lo_D,Hi_D,Lo_R,Hi_R]=orthfilt(w)
orthfilt is an utility function for obtaining analysis and synthesis filter set of given orthogonal wavelets including haar, daubechies, coiflets and symlets.
w=dbwavf('db2'); [lo_d,hi_d,lo_r,hi_r]=orthfilt(w);
Roger Liu and Isaac Zhi