利用face_recognition,dlib与OpenCV调用摄像头进行人脸识别

用已经搭建好 face_recognition,dlib 环境来进行人脸识别

未搭建好环境请参考:https://www.cnblogs.com/guihua-pingting/p/12201077.html

使用OpenCV 调用摄像头

import face_recognition
import cv2 video_capture = cv2.VideoCapture(0)
# VideoCapture打开摄像头,0为笔记本内置摄像头,1为外USB摄像头,或写入视频路径
mayun_img = face_recognition.load_image_file("mayun.jpg")
jobs_img = face_recognition.load_image_file("jobs.jpg") mayun_face_encoding = face_recognition.face_encodings(mayun_img)[0]
jobs_face_encoding = face_recognition.face_encodings(jobs_img)[0] face_locations = []
face_encodings = []
face_names = []
process_this_frame = True while True:
ret, frame = video_capture.read()
# video_capture.read()按帧读取视频,ret,frame是获video_capture.read()方法的两个返回值。
# 其中ret是布尔值,如果读取帧是正确的则返回True,
# 如果文件读取到结尾,它的返回值就为False。frame就是每一帧的图像,是个三维矩阵。 small_frame = cv2.resize(frame, (0, 0), fx=0.25, fy=0.25)
# 对截取到的图像进行处理 if process_this_frame:
face_locations = face_recognition.face_locations(small_frame)
face_encodings = face_recognition.face_encodings(small_frame, face_locations) face_names = []
for face_encoding in face_encodings:
match = face_recognition.compare_faces([mayun_face_encoding, jobs_face_encoding], face_encoding) if match[0]:
name = "mayun"
elif match[1]:
name = "jobs"
else:
name = "unknown"
print(name) face_names.append(name) process_this_frame = not process_this_frame for (top, right, bottom, left), name in zip(face_locations, face_names):
top *= 4
right *= 4
bottom *= 4
left *= 4 cv2.rectangle(frame, (left, top), (right, bottom), (0, 0, 255), 2) cv2.rectangle(frame, (left, bottom - 35), (right, bottom), (0, 0, 255), 2)
font = cv2.FONT_HERSHEY_DUPLEX
cv2.putText(frame, name, (left+6, bottom-6), font, 1.0, (255, 255, 255), 1) cv2.imshow('Video', frame) if cv2.waitKey(1) & 0xFF == ord('q'):
break video_capture.release()
cv2.destroyAllWindows()

我使用手机中的照片来进行验证

利用face_recognition,dlib与OpenCV调用摄像头进行人脸识别

因为是按每一帧进行读取:

利用face_recognition,dlib与OpenCV调用摄像头进行人脸识别

有些人在使用时会出现摄像头打不开的情况

我使用的是win10系统给出一个建议:

在设置中找到隐私设置,在找到相机选项,把权限打开即可

利用face_recognition,dlib与OpenCV调用摄像头进行人脸识别

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