python opencv3 静态图片检测人脸,,git:https:


git:https://github.com/linyi0604/Computer-Vision

 1 # coding:utf-8 2  3 import cv2 4  5 filename = "../data/mm3.jpg" 6  7  8 def detect(filename): 9     # 创建检测人脸的对象 要在opencv的目录下找到xml文件,放置到自己项目中10     face_cascade = cv2.CascadeClassifier("../data/haarcascade_frontalface_default.xml")11     # 读取图像12     img = cv2.imread(filename)13     # 转为灰度图像14     gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)15     # 进行人脸检测16     faces = face_cascade.detectMultiScale(gray, 1.3, 5)17     """18     faces = face_cascade.detectMultiScale(img, scaleFactor, minNeighbors)19     参数:20         img: 识别的原图21         scaleFactor: 迭代时图像的压缩率22         minNeighbors: 每个人脸矩形保留近邻数目的最小值23         24     返回值:25         一个列表,列表里边每一项是一个框起人脸的矩形(x, y, w, h)26         27     """28     print(faces)29     for (x, y, w, h) in faces:30         # 画出矩形框31         img = cv2.rectangle(img, (x, y), (x+w, y+h), (255, 0, 0), 2)32 33     cv2.imshow("Vikings Detected", img)34     cv2.waitKey()35 36 37 detect(filename)

python opencv3 静态图片检测人脸

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