lsinfo
(To be removed) Lifting schemes information
lsinfo
will be removed in a future release. Use disp
and liftingScheme
instead. For more information, see Compatibility Considerations.
Syntax
Description
lsinfo
displays information about lifting schemes
created with liftwave
.
Note
liftwave
is no longer recommended and will
be removed in a future release. Use liftingScheme
.
Examples
Display Information About Lifting Schemes
Display information about lifting schemes created
with liftwave
.
lsinfo
lsinfo Information about lifting schemes. A lifting scheme (LS) is a N x 3 cell array. The N-1 first rows of the array are "elementary lifting steps" (ELS). The last row gives the normalization of LS. Each ELS has the following format: {type , coefficients , max_degree} where: - "type" is equal to 'p' (primal) or 'd' (dual). - "coefficients" is a vector C of real numbers defining the coefficients of a Laurent polynomial P described below. - "max_degree" is the highest degree d of the monomials of P. The Laurent polynomial P is of the form: P(z) = C(1)*z^d + C(2)*z^(d-1) + ... + C(m)*z^(d-m+1) So the Lifting Scheme LS is such that: for k = 1:N-1 , LS{k,:} is an ELS: LS{k,1} is the lifting "type" 'p' (primal) or 'd' (dual). LS{k,2} is the corresponding lifting filter. LS{k,3} is the highest degree of the Laurent polynomial corresponding to the filter LS{k,2}. LS{N,1} is the primal normalization (real number). LS{N,2} is the dual normalization (real number). LS{N,3} is not used. Usually, the normalizations are such that LS{N,1}*LS{N,2} = 1. For example, the lifting scheme associated to the wavelet db1 is: LS = {... 'd' [ -1] [0] 'p' [0.5000] [0] [1.4142] [0.7071] [] } See also displs, laurpoly. Documentation for lsinfo
Version History
Introduced before R2006aR2021a: lsinfo
will be removed
lsinfo
will be removed in a future release. For
lifting, use disp
to display information of a lifting scheme created by
liftingScheme
.
See Also
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