Get image files in `path` recursively, only in `folders`, if specified.
get_image_files(path, recurse = TRUE, folders = NULL)
The folder where to work
recursive path
folder names
None
if (FALSE) {
URLs_PETS()
path = 'oxford-iiit-pet'
path_img = 'oxford-iiit-pet/images'
fnames = get_image_files(path_img)
}