Functions > Transforms and Filters > Wavelet Filters
  
Wavelet Filters
• Bspline(m, n)—Returns the analysis and synthesis low-pass filters for a spline-based biorthogonal wavelet. The first column of the matrix returned by Bspline contains the analysis filter. The second column contains the synthesis filter.
Value of m
Restrictions on n
1
1, 3, or 5
2
2, 4, 6 or 8
3
1, 3, 5, 7, or 9
Arguments
• m is 1, 2, or 3.
• n is an integer. Restrictions on n are noted in the table above.