Bitmap/Histogram: Difference between revisions

m
let & loop -> loop
m (<= instead of <)
m (let & loop -> loop)
Line 273:
 
(defun find-median (histogram)
(let*loop with ((num-pixels = (loop for count across histogram sum count))
with (half = (/ num-pixels 2)))
(loop for count across histogram
for i from 0
sum count into acc
when (>= acc half)
return i)))
 
(defun gray->black&white-image (image)
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