Last data update: 2014.03.03
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R: Quadrature Mirror Filter
Quadrature Mirror Filter
Description
Computes the quadrature mirror filter from a given filter.
Usage
qmf(g, low2high=TRUE)
Arguments
g |
Filter coefficients.
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low2high |
Logical, default is TRUE which means a low-pass
filter is input and a high-pass filter is output. Setting
low2high=F performs the inverse.
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Details
None.
Value
Quadrature mirror filter.
Author(s)
B. Whitcher
References
Any basic signal processing text.
See Also
wave.filter .
Examples
## Haar wavelet filter
g <- wave.filter("haar")$lpf
qmf(g)
Results
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