R: Inverse tensor product 2D wavelet transform.

tpwr {wavethresh} | R Documentation

## Inverse tensor product 2D wavelet transform.

### Description

Performs the inverse transform to `tpwd`.

### Usage

    tpwr(tpwdobj, verbose = FALSE)

### Arguments

`tpwdobj` | An object which is a list which contains the items indicated in the return value of `tpwd`
`verbose` | Whether informative messages are printed

### Details

Performs the inverse transform to `tpwd`.

### Value

A matrix, or image, containing the inverse tensor product wavelet transform of the image contained in the `tpwd` component of the `tpwdobj` object.

### Author(s)

G P Nason

### See Also

`imwr`,`tpwd`

### Examples

    data(lennon)
    ltpwd <- tpwd(lennon)
    #
    # now perform the inverse and compare to the original
    #
    ltpwr <- tpwr(ltpwd)
    sum((ltpwr - lennon)^2)
    # [1] 9.22802e-10

[Package wavethresh version 4.6.8 Index]