sufficientStat {bayesImageS}

Calculate the sufficient statistic of the Potts model for the given labels.

Description

Calculate the sufficient statistic of the Potts model for the given labels.

Usage

sufficientStat(labels, neighbors, blocks, k)

Arguments

labels

A matrix of pixel labels.

neighbors

A matrix of all neighbors in the lattice, one row per pixel.

blocks

A list of pixel indices, dividing the lattice into independent blocks.

k

The number of unique labels.

Value

The sum of like neighbors.