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clpud/lab_mean.py

Last active February 28, 2020 04:48
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Calculate LAB Mean
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lab_mean.py
import cv2
def calculate_lab_mean(img):
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
t, mask = cv2.threshold(gray, 0, 255, cv2.THRESH_BINARY)
lab = cv2.cvtColor(img, cv2.COLOR_BGR2LAB)
l, a, b = cv2.mean(lab, mask)[:3]
return l * 100 / 255, a - 128, b - 128
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