Description Usage Arguments Value References Examples

Given an image, this function first computes the 2d DWT and then returns a
matrix of size `N`

by `b`

where `N`

is the number of wavelets and `b`

is the number of neighbours per wavelet. Two wavelets are deemed
to be neighbours according to the metric of Shen, Huang and Cressie (2002). The distance metric is a function of the
spatial separation, the resolution and the orientation.

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`Z` |
image of size |

`wf` |
type of wavelet to employ. Please see |

`J` |
number of resolutions to employ in the wavelet decomposition |

`b` |
number of neighbours to consider in EFDR |

`parallel` |
number of cores to use with parallel backend; needs to be an integer less than the number of available cores |

matrix of size `N`

by `b`

Shen, X., Huang, H.-C., and Cressie, N. 'Nonparametric hypothesis testing for a spatial signal.' Journal of the American Statistical Association 97.460 (2002): 1122-1140.

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