MRIaggr (version 1.1.5)

initNeighborhood: Initialization of a neighbourhood filter

Description

Return the neighbourhood configuration corresponding to the specified name.

Usage

initNeighborhood(Neighborhood, method)

Arguments

Neighborhood

the name of neighbourhood configuration. Any of "2D_N4", "2D_N8" "3D_N6" "3D_N10" "3D_N18" "3D_N26". REQUIRED.

method

the name of the function that called the initializer. character.

Value

A n*d matrix with in line the coordinates of the neighbors relative to the current observation.

Details

ARGUMENTS : Neighborhood refers to classical neighbourhood configurations : The first two characters refer to the dimension d of the filter : "2D" or "3D". The third character must be "_". The fourth character refers to the type of filter and must be "N". The last one or two characters indicates the number of neighbors (denoted n) in each neighbourhood.

Examples

# 2D neighbourhood
initNeighborhood("2D_N4", method = "calcFilter") # rock neighbourhood
initNeighborhood("2D_N8", method = "calcFilter") # queen neighbourhood

# 3D neighbourhood
initNeighborhood("3D_N6", method=  "calcFilter") 
initNeighborhood("3D_N10" ,method = "calcFilter")
initNeighborhood("3D_N18", method = "calcFilter")
initNeighborhood("3D_N26", method = "calcFilter")