qmf {waveslim}

Quadrature Mirror Filter

Description

Computes the quadrature mirror filter from a given filter.

Usage

qmf(g, low2high = TRUE)

Arguments

g

Filter coefficients.

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.

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)