| Usage: |
x = invfwt (a, b, n, l, h)
|
| Input: |
| a | l x 2 matrix, indices and coefficients of father wavelet
|
| b | (n-l) x 3 matrix, indices and coefficients of mother wavelet
|
| n | integer, total amount of coefficients, has to be a power of 2
|
| l | integer, the number of coeffients of the mother wavelets
|
| h | m x 1 vector, wavelet basis
|
| Output: |
| x | n x 1 vector, |
The matrix a contains in the first column the index of the
coefficient of the father wavelet and in the second column the coefficient itself. The matrix b contains in the first two columns the indices of
the coefficient of the mother wavelet and in the third column the coefficient
itself. Both can be retrieved by fwt.
To get the vectors of the wavelet basis, the library wavelet has to be
loaded. h can be daubechies2,4,6,8,10,12,14,16,18,20, symmlet4 to 10 or
coiflet1 to 5.