OpenCV实现人脸检测
import cv2
filename = "img1.jpg"
def detact(filename):
face_cascade = cv2.CascadeClassifier('./haarcascades/haarcascade_frontalface_default.xml')
img = cv2.imread(filename)
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),(0,0,255),2)
cv2.namedWindow("Vilings Detected")
cv2.imshow("Vilings Detected", img)
cv2.imwrite('viking.jpg', img)
cv2.waitKey()
detact(filename)
其中需要用到Haar检测算法的Xml文件,用于静态图像、视频和摄像头得到的人脸检测。
xml下载地址:https://download.csdn.net/my
检测结果展示: