一、环境搭建１．系统环境Ubuntu 17.04
Python 2.7.14
pycharm 开发工具1
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32.开发环境，安装各种系统包人脸检测基于dlib，dlib依赖Boost和cmake$ sudo apt-get install build-essential cmake
$ sudo apt-get install libgtk-3-dev
$ sudo apt-get install libboost-all-dev1
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3其他重要的包$pip install numpy
$pip install scipy
$pip install opencv-python
$pip install dlib1
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4安装 face_recognition# 安装 face_recognition
$ pip install face_recognition
# 安装face_recognition过程中会自动安装 numpy、scipy 等1
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二、使用教程
1、facial_features文件夹此demo主要展示了识别指定图片中人脸的特征数据，下面就是人脸的八个特征，我们就是要获取特征数据'chin',
'left_eyebrow',
'right_eyebrow',
'nose_bridge',
'nose_tip',
'left_eye',
'right_eye',
'top_lip',
'bottom_lip'1
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运行结果：自动识别图片中的人脸，并且识别它的特征原图：
特征数据，数据就是运行出来的矩阵，也就是一个二维数组
代码：# -*- coding: utf-8 -*-
# 自动识别人脸特征
# filename : find_facial_features_in_picture.py
# 导入pil模块 ，可用命令安装 apt-get install python-Imaging
from PIL import Image, ImageDraw
# 导入face_recogntion模块，可用命令安装 pip install face_recognition
import face_recognition
# 将jpg文件加载到numpy 数组中
image = face_recognition.load_image_file("chenduling.jpg")
#查找图像中所有面部的所有面部特征
face_landmarks_list = face_recognition.face_landmarks(image)
print("I found {} face(s) in this photograph.".format(len(face_landmarks_list)))
for face_landmarks in face_landmarks_list:
#打印此图像中每个面部特征的位置
facial_features = [
'chin',
'left_eyebrow',
'right_eyebrow',
'nose_bridge',
'nose_tip',
'left_eye',
'right_eye',
'top_lip',
'bottom_lip'
]
for facial_feature in facial_features:
print("The {} in this face has the following points: {}".format(facial_feature, face_landmarks[facial_feature]))
#让我们在图像中描绘出每个人脸特征！
pil_image = Image.fromarray(image)
d = ImageDraw.Draw(pil_image)
for facial_feature in facial_features:
d.line(face_landmarks[facial_feature], width=5)
pil_image.show()1
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2、find_face文件夹不仅能识别出来所有的人脸，而且可以将其截图挨个显示出来,打印在前台窗口原始的图片
识别的图片
代码：# -*- coding: utf-8 -*-
# 识别图片中的所有人脸并显示出来
# filename : find_faces_in_picture.py
# 导入pil模块 ，可用命令安装 apt-get install python-Imaging
fromPILimport Image
# 导入face_recogntion模块，可用命令安装 pip install face_recognition
import face_recognition
# 将jpg文件加载到numpy 数组中
image = face_recognition.load_image_file("yiqi.jpg")
# 使用默认的给予HOG模型查找图像中所有人脸
# 这个方法已经相当准确了，但还是不如CNN模型那么准确，因为没有使用GPU加速
# 另请参见: find_faces_in_picture_cnn.py
face_locations = face_recognition.face_locations(image)
# 使用CNN模型
# face_locations = face_recognition.face_locations(image, number_of_times_to_upsample=0, model="cnn")
# 打印：我从图片中找到了 多少 张人脸
print("I found {} face(s) in this photograph.".format(len(face_locations)))
# 循环找到的所有人脸
for face_location in face_locations:
# 打印每张脸的位置信息
top, right, bottom, left = face_location
print("A face is located at pixel location Top: {}, Left: {}, Bottom: {}, Right: {}".format(top, left, bottom, right))
# 指定人脸的位置信息，然后显示人脸图片
face_image = image[top:bottom, left:right]
pil_image = Image.fromarray(face_image)
pil_image.show()1
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３、know_face文件夹通过设定的人脸图片识别未知图片中的人脸# -*- coding: utf-8 -*-
# 识别人脸鉴定是哪个人
# 导入face_recogntion模块，可用命令安装 pip install face_recognition
import face_recognition
#将jpg文件加载到numpy数组中
chen_image = face_recognition.load_image_file("chenduling.jpg")
#要识别的图片
unknown_image = face_recognition.load_image_file("sunyizheng.jpg")
#获取每个图像文件中每个面部的面部编码
#由于每个图像中可能有多个面，所以返回一个编码列表。
#但是由于我知道每个图像只有一个脸，我只关心每个图像中的第一个编码，所以我取索引0。
chen_face_encoding = face_recognition.face_encodings(chen_image)[0]
print("chen_face_encoding:{}".format(chen_face_encoding))
unknown_face_encoding = face_recognition.face_encodings(unknown_image)[0]
print("unknown_face_encoding :{}".format(unknown_face_encoding))
known_faces = [
chen_face_encoding
]
#结果是True/false的数组，未知面孔known_faces阵列中的任何人相匹配的结果
results = pare_faces(known_faces, unknown_face_encoding)
print("result :{}".format(results))
print("这个未知面孔是 陈都灵 吗? {}".format(results[0]))
print("这个未知面孔是 我们从未见过的新面孔吗? {}".format(not True in results))1
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4、video文件夹通过调用电脑摄像头动态获取视频内的人脸，将其和我们指定的图片集进行匹配，可以告知我们视频内的人脸是否是我们设定好的实现：
代码：# -*- coding: utf-8 -*-
# 摄像头头像识别
import face_recognition
import cv2
video_capture = cv2.VideoCapture(0)
# 本地图像
chenduling_image = face_recognition.load_image_file("chenduling.jpg")
chenduling_face_encoding = face_recognition.face_encodings(chenduling_image)[0]
# 本地图像二
sunyizheng_image = face_recognition.load_image_file("sunyizheng.jpg")
sunyizheng_face_encoding = face_recognition.face_encodings(sunyizheng_image)[0]
# 本地图片三
zhangzetian_image = face_recognition.load_image_file("zhangzetian.jpg")
zhangzetian_face_encoding = face_recognition.face_encodings(zhangzetian_image)[0]
# Create arrays of known face encodings and their names
# 脸部特征数据的集合
known_face_encodings = [
chenduling_face_encoding,
sunyizheng_face_encoding,
zhangzetian_face_encoding
]
# 人物名称的集合
known_face_names = [
"michong",
"sunyizheng",
"chenduling"
]
face_locations = []
face_encodings = []
face_names = []
process_this_frame = True
while True:
# 读取摄像头画面
ret, frame = video_capture.read()
# 改变摄像头图像的大小，图像小，所做的计算就少
small_frame = cv2.resize(frame, (0, 0), fx=0.25, fy=0.25)
# opencv的图像是BGR格式的，而我们需要是的RGB格式的，因此需要进行一个转换。
rgb_small_frame = small_frame[:, :, ::-1]
# Only process every other frame of video to save time
if process_this_frame:
# 根据encoding来判断是不是同一个人，是就输出true，不是为flase
face_locations = face_recognition.face_locations(rgb_small_frame)
face_encodings = face_recognition.face_encodings(rgb_small_frame, face_locations)
face_names = []
for face_encoding in face_encodings:
# 默认为unknown
matches = pare_faces(known_face_encodings, face_encoding)
name = "Unknown"
# if match[0]:
# name = "michong"
# If a match was found in known_face_encodings, just use the first one.
if True in matches:
first_match_index = matches.index(True)
name = known_face_names[first_match_index]
face_names.append(name)
process_this_frame = not process_this_frame
# 将捕捉到的人脸显示出来
for (top, right, bottom, left), name in zip(face_locations, face_names):
# Scale back up face locations since the frame we detected in was scaled to 1/4 size
top *= 4
right *= 4
bottom *= 4
left *= 4
# 矩形框
cv2.rectangle(frame, (left, top), (right, bottom), (0, 0, 255), 2)
#加上标签
cv2.rectangle(frame, (left, bottom - 35), (right, bottom), (0, 0, 255), cv2.FILLED)
font = cv2.FONT_HERSHEY_DUPLEX
cv2.putText(frame, name, (left + 6, bottom - 6), font, 1.0, (255, 255, 255), 1)
# Display
cv2.imshow('monitor', frame)
# 按Q退出
if cv2.waitKey(1) & 0xFF == ord('q'):
break
video_capture.release()
cv2.destroyAllWindows()1
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5、boss文件夹
