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Python+Opencv识别视频统计人数

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#!/usr/bin/python# -*- coding: utf-8 -*-import cv2import numpy as npface_cascade=cv2.CascadeClassifier("haarcascade_frontalface_default.xml")eye_cascade=cv2.CascadeClassifier("haarcascade_eye.xml")cap=cv.VideoCapture('1.mp4')while True:    ret,frame=cap.read()    i=frame       # print i.shape    gray=cv2.cvtColor(i,cv2.COLOR_BGR2GRAY)    faces=face_cascade.detectMultiScale(gray,1.3,5)    eyes=eye_cascade.detectMultiScale(gray,1.3,5)    l=len(faces)    print(l)    for (x,y,w,h) in faces:        cv2.rectangle(i,(x,y),(x+w,y+h),(255,0,0),2)        cv2.putText(i,'face',(w//2+x,y-h//5),cv2.FONT_HERSHEY_PLAIN,2.0,(255,255,255),2,1)        roi_gray = gray[y:y+h, x:x+w]        roi_color = i[y:y+h, x:x+w]        for (ex,ey,ew,eh) in eyes:            cv2.rectangle(roi_color,(ex,ey),(ex+ew,ey+eh),(0,255,0),2)            cv2.putText(i,face count",(20,20),cv2.FONT_HERSHEY_PLAIN,2.0,(255,255,255),2,1)            cv2.putText(i,str(l),(230,20),cv2.FONT_HERSHEY_PLAIN,.0,(255,255,255),2,1)    cv2.imshow("rstp",i)    if cv2.waitKey(1) & 0xFF == ord('q'):        exit(0)

运行结果如下：

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