LS2W: implementing the locally stationary 2D wavelet process approach in R.

Eckley, Idris A. and Nason, Guy P. (2011) LS2W: implementing the locally stationary 2D wavelet process approach in R. Journal of Statistical Software, 43 (3). pp. 1-23. ISSN 1548-7660

Abstract

Locally stationary process representations have recently been proposed and applied to both time series and image analysis applications. This article describes an implementation of the locally stationary two-dimensional wavelet (LS2W) process approach in R. This package permits construction of estimates of spatially localized spectra and localized autocovariance which can be used to characterize structure within images.