python opencv人脸检测

安装opencv

pip install opencv-python

人脸检测器的配置文件

链接: https://pan.baidu.com/s/10Gd9ZR7kaNIQaQM2I6TKEA 提取码: vtrs

代码

import cv2

capture_index = 0

def main():
    # 分类器
    haar = cv2.CascadeClassifier('haarcascade_frontalface_default.xml')
    # 摄像头
    cap = cv2.VideoCapture(capture_index)
    # 读取
    while True:
        success, img = cap.read()
        if not success:
            continue
        faces = haar.detectMultiScale(img)
        print("检测到人脸%d个" %len(faces))

        cv2.namedWindow("image")
        # 保存人脸坐标
        face_rects = []
        for x,y,w,h in faces:
            face = []
            face.append(x) if x>0 else face.append(0)
            face.append(y) if y>0 else face.append(0)
            face.append(x+w) 
            face.append(y+h)
            face_rects.append(face)
        # 画框
        for rect in face_rects:
            cv2.rectangle(img,(rect[0],rect[1]),(rect[2],rect[3]), (0,255,255))
        cv2.imshow("image",img)
        cv2.waitKey(1)
    return 0

if __name__ == "__main__":
    main()

 

来源：CSDN

作者：Random_r

链接：https://blog.csdn.net/Random_R/article/details/104108493