Approximation
Purpose
Description
Macro Synopsis
Modules
Related Functions
Purpose
Wavelet approximation
Description
"Approximation" computes a coarser approximation of the input
signal. The signal is reconstructed from its discrete wavelet
transform by using only the values of the approximation 
at the given octave n. The result is the projection of the input signal onto a subspace of the multiresolution analysis that corresponds to the current wavelet. The subspace is generated by scaled and translated versions of the scaling function.
Its parameter is the
- number n of octaves (decomposition depth).
Macro Synopsis
y = WaveletApprox(x,n);
signal x,y;
int n;
Modules
Wavelet
Related Functions
Define wavelet, Load wavelet,
Save wavelet, Decompose,
Reconstruct, Detail