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Face Detector

Given an image a Face Detector returns a bounding box for every face present in the picture.

Install​

pip3 install dlib
pip3 install opencv-python

Usage​

#!/usr/bin/env python3
import cv2
import dlib

detector = dlib.get_frontal_face_detector()

frame = cv2.imread("image.jpeg")
img  = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
upsample = 1

bounding_boxes = detector(img, upsample)

for bb in bounding_boxes:
    frame = cv2.rectangle(frame, 
        (bb.left(), bb.top()),
        (bb.right(), bb.bottom()),
        (114, 38, 249),
        2)

cv2.imshow("", frame)
cv2.waitKey(0)

Source