MATLAB: What is the difference between wavelets and framelets?
dwtframelet transform
Does Discrete Wavelet Transform and Framelet have the same algorithm??
Best Answer
Yes and no.
The discrete wavelet transform is often used as synonymous with the discrete nonredundant (critically-sampled) wavelet transform.
Framelets are redundant wavelet transforms. The Wavelet Toolbox currently features the stationary wavelet transform and the nondecimated wavelet transform which are highly-redundant framelet transforms. There are framelet decompositions with less redundancy than those two.
The CWT as implemented in a computer is also a wavelet frame decomposition.
If you have the Wavelet Toolbox, there are many possibilities. You need to determine which "flavor" of wavelet transform is most appropriate for your application.
The software contains code for:
1.) Discrete decimated wavelet transform (see wavedec)
2.) Discrete nondecimated wavelet transform (see ndwt or swt)
3.) Continuous wavelet transform (see cwt or cwtft)
Best Answer