antsTransformIndexToPhysicalPoint.Rd
Get spatial point from index of an antsImage
.
antsTransformIndexToPhysicalPoint(x, index)
x | image object of S4 class |
---|---|
index | image index |
array of pixel values
img <- makeImage(c(10,10),rnorm(100)) pt <- antsTransformIndexToPhysicalPoint(img, c(2,2)) arr = as.array(img) testthat::expect_error( antsTransformIndexToPhysicalPoint(arr,c(2,2)), "antsImage") testthat::expect_error( antsTransformIndexToPhysicalPoint(img,c("2",2)), "index must be") testthat::expect_error( antsTransformIndexToPhysicalPoint(img,c(2,2,2)), "matrix must be of")