imager (version 0.31)

map_il: Type-stable map for use with the purrr package

Description

Works like purrr::map, purrr::map_dbl and the like but ensures that the output is an image list.

Usage

map_il(...)

Arguments

...

passed to map

Value

an image list

Examples

#Returns a list
imsplit(boats,"x",2) %>% purrr::map(~ isoblur(.,3))
#Returns an "imlist" object
imsplit(boats,"x",2) %>% map_il(~ isoblur(.,3))
#Fails if function returns an object that's not an image
try(imsplit(boats,"x",2) %>% map_il(~ . > 2))