pillar-stats: Get the sums/means/medians/variances of pillars of an
ijtiff_img-style array.
Description
For an ijtiff_img-style array img (indexed as img[y, x, channel, frame]), pillar xy of channel
ch is defined as img[y, x, ch, ]. These functions compute the mean,
median and variance of each pillar for each channel.
Usage
sum_pillars(img, parallel = FALSE)
mean_pillars(img, parallel = FALSE)
median_pillars(img, parallel = FALSE)
var_pillars(img, parallel = FALSE)
Arguments
img
A 4-dimensional array in the style of an
ijtiff_img (indexed by img[y, x, channel, frame])
or a 3-dimensional array which is a single channel of an
ijtiff_img (indexed by img[y, x, frame]).
parallel
Would you like to use multiple cores to speed up this
function? If so, set the number of cores here, or to use all available
cores, use parallel = TRUE.
Value
An ijtiff_img-style array arr with one frame.
arr[y, x, ch, 1] is equal to mean(img[y, x, ch, ]), median(img[y, x, ch, ]), or var(img[y, x, ch, ]).
# NOT RUN {aaa <- array(seq_len(2^4), dim = rep(2, 4)) # a 2-channel, 2-frame arraysum_pillars(aaa)
mean_pillars(aaa)
median_pillars(aaa)
var_pillars(aaa)
# }