一、代码:
# -*- coding: utf-8 -*-
"""
@Time : 2018/3/5 14:32
@Author : LITTLE HORSE
@Software: PyCharm
"""
import numpy as np
import cv2
# 导入训练好的人脸以及人眼分类文件
face_cascade = cv2.CascadeClassifier('haarcascade_frontalface_default.xml')
eye_cascade = cv2.CascadeClassifier('haarcascade_eye.xml')
cap = cv2.VideoCapture(0)
cap.set(3, 320)
cap.set(4, 240)
while(cap.isOpened()):
ret, img = cap.read()
if ret == True:
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
faces = face_cascade.detectMultiScale(gray, 1.3, 5)
for (x ,y, w, h) in faces:
img = cv2.rectangle(img, (x,y), (x+w,y+h), (255,0,0), 2)
roi_gray = gray[y:y+h, x:x+w]
roi_color = img[y:y+h, x:x+w]
eyes = eye_cascade.detectMultiScale(roi_gray)
for (ex, ey, ew, eh) in eyes:
cv2.rectangle(roi_color, (ex, ey), (ex+ew, ey+eh), (0, 255, 0), 2)
cv2.imshow('img', img)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
cap.release()
cv2.destroyAllWindows()
二、分类器
用到的分类器可自行去opencv目录查找。