antsAverageImages: Computes average of image list

In stnava/ANTsR: ANTs in R: Quantification Tools for Biomedical Images

Computes average of image list

Description

Calculate the mean of a list of antsImages

Usage

antsAverageImages(imageList, normalize = FALSE, weights, verbose = TRUE)

Arguments

imageList	list of antsImages or a character vector of filenames
normalize	boolean determines if image is divided by mean before averaging
weights	a vector of weights of length equal to imageList
verbose	print a progress bar

Author(s)

Avants BB, Pustina D

Examples

f1 <- getANTsRData("r16")
f2 <- getANTsRData("r64")
r16 <- antsImageRead(f1)
r64 <- antsImageRead(f2)
mylist <- list(r16, r64)
antsAverageImages(mylist)
bad <- resampleImage(r16, c(2, 2), useVoxels = FALSE)
antsAverageImages(mylist, normalize = TRUE)
antsAverageImages(c(f1, f2))
testthat::expect_error(antsAverageImages(list(f1, "")))
testthat::expect_error(antsAverageImages(list(r64, bad)))
diff_size <- as.antsImage(r64[1:10, 1:10], ref = r64)
testthat::expect_error(antsAverageImages(list(r64, diff_size)))

stnava/ANTsR documentation built on April 16, 2024, 12:17 a.m.