Python程序调用摄像头实现人脸识别

Python程序调⽤摄像头实现⼈脸识别

使⽤简单代码实现摄像头进⾏在线⼈脸识别

import cv2

import sys

import logging as log七夕单身

import datetime as dt

from time import sleep

cascPath = "D:\\Python27\\Lib\\site-packages\\cv2\\data\\haarcascade_l"

faceCascade = cv2.CascadeClassifier(cascPath)

# 打开视频捕获设备

video_capture = cv2.VideoCapture(0)

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if not video_capture.isOpened():

print('Unable to load camera.')邓煌老公孙达简历

sleep(5)

pass

# 读视频帧

ret, frame = ad()

# 转为灰度图像

gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)

# 调⽤分类器进⾏检测

faces = faceCascade.detectMultiScale(

gray,

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scaleFactor=1.1,

minNeighbors=5,梦见自己鬼上身

minSize=(30, 30),

#flags=cv2.cv.CV_HAAR_SCALE_IMAGE

)

# 画矩形框

for (x, y, w, h) in faces:

# 显⽰视频

cv2.imshow('Video', frame)

if cv2.waitKey(1) & 0xFF == ord('q'):

break

# 关闭摄像头设备

lease()

卜算子苏轼# 关闭所有窗⼝

cv2.destroyAllWindows()

运⾏程序后按q键退出程序。注意⼀些模块的导⼊，否则代码⽆法运⾏。笔者使⽤笔记本运⾏程序，可以调⽤笔记本的摄像头进⾏⼈脸识别。