OpenCV3与深度学习实例：Dlib+VGG Face实现两张脸部图像相似度比较

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实现思路：

1、使用Dlib识别并提取脸部图像

2、使用VGG Face模型提取脸部特征

3、使用余弦相似度算法比较两张脸部图像的特征

代码如下：

import time
import numpy as np
import sklearn
import sklearn.metrics.pairwise as pw
import cv2
import dlibprototxt = 'datas/models/caffe/vgg-face/vgg_face_caffe/vgg_face_caffe/VGG_FACE_deploy.prototxt'
caffemodel = 'datas/models/caffe/vgg-face/vgg_face_caffe/vgg_face_caffe/VGG_FACE.caffemodel'
dlib_model = 'datas/models/dlib/shape_predictor_68_face_landmarks.dat'
detector = dlib.get_frontal_face_detector()
predictor = dlib.shape_predictor(dlib_model)
net = cv2.dnn.readNetFromCaffe(prototxt, caffemodel)faces1 = get_faces('datas/images/face-tests/fanbb/f16.jpg')
faces2 = get_faces('datas/images/faces/fanbb.jpg')
for i,face in enumerate(faces1):cv2.imshow('face1_%d' % i,face)for i,face in enumerate(faces2):cv2.imshow('face2_%d' % i,face)face_1 = faces1[0]
face_2 = faces2[0]result = compare_faces(face_1,face_2)
print('prob of similarity:',result)
cv2.waitKey()
cv2.destroyAllWindows()