imager (version 0.31)

ilply: Split an image along axis, apply function, return a list

Description

Shorthand for imsplit followed by llply

Usage

ilply(im, axis, fun, ...)

Arguments

im

image

axis

axis for the split (e.g "c")

fun

function to apply

...

extra arguments for function fun

Examples

parrots <- load.example("parrots")
ilply(parrots,"c",mean) #mean luminance per colour channel