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Multilevel 3-D wavelet reconstruction

`X = waverec3(WDEC)C = waverec3(WDEC,TYPE,N)X = waverec3(WDEC,'a',0)X
= waverec3(WDEC,'ca',0)C = waverec3(WDEC,TYPE)C
= waverec3(WDEC,TYPE,N)`

`waverec3` performs a
multilevel 3-D wavelet reconstruction starting from a multilevel 3-D
wavelet decomposition.

`X = waverec3(WDEC)` reconstructs the 3-D
array `X` based on the multilevel wavelet decomposition
structure `WDEC`. You can also use `waverec3` to extract coefficients from
a 3-D wavelet decomposition.

`WDEC` is a structure with the fields shown
in the table.

`C = waverec3(WDEC,TYPE,N)` reconstructs
the multilevel components at level `N` of a 3-D wavelet
decomposition. `N` must be a positive integer less
than or equal to the level of the decomposition.

Valid values for `TYPE` are:

A group of three characters

`'xyz'`, one per direction, with`'x'`,`'y'`and`'z'`selected in the set {`'a'`,`'d'`,`'l'`,`'h'`} or in the corresponding uppercase set {`'A'`,`'D'`,`'L'`,`'H'`}), where`'A'`(or`'L'`) is a low-pass filter and`'D'`(or`'H'`) is a high-pass filter.The char

`'d'`(or`'h'`or`'D'`or`'H'`) gives the sum of all the components different from the low-pass.The char

`'a'`(or`'l'`or`'A'`or`'L'`) gives the low-pass component (the approximation at level`N`).

For extraction, the valid values for TYPE are the same but prefixed
by `'c'` or `'C'`.

`X = waverec3(WDEC,'a',0)` or `X
= waverec3(WDEC,'ca',0)` is equivalent to `X = waverec3(WDEC)`. `X` is
a reconstruction of the coefficients in `WDEC` at
level 0.

`C = waverec3(WDEC,TYPE)` is equivalent to `C
= waverec3(WDEC,TYPE,N)` with `N` equal
to the level of the decomposition.

sizeINI | Size of the three-dimensional array |

level | Level of the decomposition |

mode | Name of the wavelet transform extension mode |

filters | Structure with 4 fields, |

dec |
For
example, if At
each level, the wavelet coefficients in The
strings give the order in which the separable filtering operations
are applied from left to right. For example, |

sizes | Successive sizes of the decomposition components |

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