antsrMetricCreate

create object that measures similarity between two images

antsrMetricCreate(
  fixed,
  moving,
  type = c("MeanSquares", "MattesMutualInformation", "ANTSNeighborhoodCorrelation",
    "Correlation", "Demons", "JointHistogramMutualInformation"),
  fixed.mask = NULL,
  moving.mask = NULL,
  sampling.strategy = "none",
  sampling.percentage = 1,
  nBins = 32,
  radius = 3
)

Arguments

fixed

the fixed antsImage

moving

the moving antsImage

type

image metric to calculate

• MeanSquares

• Correlation

• ANTSNeighborhoodCorrelation

• MattesMutualInformation

• JointHistogramMutualInformation

• Demons

fixed.mask

mask for the fixed image

moving.mask

mask for the moving image

sampling.strategy

sampling strategy, default if full sampling

• noneFull sampling

• random

• regular

sampling.percentage

percentage of data to sample when calculating metric

nBins

number of bins for histogram metrics (default = 32)

radius

radius for neighborhoo metrics (default = 3)

Value

value of image to image metric

Examples

x <- antsImageRead(getANTsRData("r16"))
y <- antsImageRead(getANTsRData("r30"))
metric <- antsrMetricCreate(x, y, type = "MeanSquares")