Face recognition detect faces in image

face_recogniton_detect_face.py

import cv2
import dlib

# Load cnn_face_detector with 'mmod_face_detector'
dnnFaceDetector=dlib.cnn_face_detection_model_v1("mmod_human_face_detector.dat")

# Load image 
img=cv2.imread('path_to_image')

# Convert to gray scale
gray=cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
  		
# Find faces in image
rects=dnnFaceDetector(gray,1)
left,top,right,bottom=0,0,0,0

# For each face 'rect' provides face location in image as pixel loaction
for (i,rect) in enumerate(rects):
  left=rect.rect.left() #x1
  top=rect.rect.top() #y1
  right=rect.rect.right() #x2
  bottom=rect.rect.bottom() #y2
  width=right-left
  height=bottom-top

  # Crop image 
  img_crop=img[top:top+height,left:left+width]

  #save crop image with person name as image name 
  cv2.imwrite('path_to_image_as_person_name',img_crop)