contextualMF {imagine}

Performs Contextual Median Filter

Description

This function implements the Contextual Median Filter (CMF) algorithm, which was first described by Belkin & O'Reilly (2009), following the pseudocode provided in their paper.

Usage

contextualMF(X)

Arguments

X

A numeric matrix object used for apply filters.

Details

Following the definition of CMF, since imagine v.2.0.0, times argument will not be available anymore.

imagine offers the CMF algorithm but for the using to find out oceanographic fronts, it is recommended to see and use the functions of the grec package.

Value

contextualMF returns a matrix object with the same dimensions of X.

References

Belkin, I. M., & O'Reilly, J. E. (2009). An algorithm for oceanic front detection in chlorophyll and SST satellite imagery. Journal of Marine Systems, 78(3), 319-326 (doi:10.1016/j.jmarsys.2008.11.018).

Examples

data(wbImage)

# Agenbag, gradient algorithm 1
cmdOut <- agenbagFilters(X = wbImage, algorithm = 1)

# image(cmdOut)