crop a sub-image by image indices — cropIndices • ANTsR

create a proper antsImage sub-image by indexing the image with indices. this is similar to but different from array sub-setting in that the resulting sub-image can be decropped back into its place without having to store its original index locations explicitly.

cropIndices(image, lowerind, upperind)

Arguments

image: antsImage to crop
lowerind: vector of lower index, should be length image dimensionality
upperind: vector of upper index, should be length image dimensionality

Value

subimage

Author

Brian B. Avants, Nicholas J. Tustison

Examples


fi <- antsImageRead(getANTsRData("r16"))
cropped <- cropIndices(fi, c(10, 10), c(100, 100))
cropped <- smoothImage(cropped, 5)
decropped <- decropImage(cropped, fi)