imager (version 0.14)

iiply: Split an image, apply function, recombine the results as an image

Description

This is just imsplit followed by llply followed by imappend

Usage

iiply(im, axis, fun, ...)

Arguments

im

image

axis

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

fun

function to apply

...

extra arguments to function fun

Examples

parrots <- load.image(system.file('extdata/parrots.png',package='imager'))
#Normalise colour channels separately, recombine
iiply(parrots,"c",function(v) (v-mean(v))/sd(v)) %>% plot