# biorfilt

Biorthogonal wavelet filter set

## Syntax

## Description

`[`

returns four filters associated with the
biorthogonal wavelet specified by decomposition
filter `LoD,HiD`

,`LoR,HiR`

] = biorfilt(`DF`

,`RF`

)`DF`

and reconstruction
filter `RF`

. These filters are

`LoD`

— Decomposition lowpass filter`HiD`

— Decomposition highpass filter`LoR`

— Reconstruction lowpass filter`HiR`

— Reconstruction highpass filter

`[`

returns eight filters, the first four associated
with the decomposition wavelet, and the last four
associated with the reconstruction wavelet.`LoD1,HiD1,LoR1,HiR1`

,`LoD2,HiD2,LoR2,HiR2`

] = biorfilt(`DF`

,`RF`

,'8')

## Examples

## Input Arguments

## Output Arguments

## More About

## References

[1] Cohen, Albert.
"Ondelettes, analyses multirésolution et traitement numérique du
signal," *Ph. D. Thesis*, University of Paris
IX, DAUPHINE. 1992.

[2] Daubechies,
Ingrid. *Ten Lectures on Wavelets*.
CBMS-NSF Regional Conference Series in Applied Mathematics 61.
Philadelphia, Pa: Society for Industrial and Applied
Mathematics, 1992.

## Extended Capabilities

## Version History

**Introduced before R2006a**