real-time gender.py

import cvlib as cv
import cv2
import numpy as np

webcam = cv2.VideoCapture(0)
    
padding = 20
while webcam.isOpened():
    status, frame = webcam.read()
    face, confidence = cv.detect_face(frame)
    for idx, f in enumerate(face):        
        (startX,startY) = max(0, f[0]-padding), max(0, f[1]-padding)
        (endX,endY) = min(frame.shape[1]-1, f[2]+padding), min(frame.shape[0]-1, f[3]+padding)
        cv2.rectangle(frame, (startX,startY), (endX,endY), (0,255,0), 2)
        face_crop = np.copy(frame[startY:endY, startX:endX]) 
        (label, confidence) = cv.detect_gender(face_crop)
        idx = np.argmax(confidence)
        label = label[idx]
        label = "{}: {:.2f}%".format(label, confidence[idx] * 100)
        Y = startY - 10 if startY - 10 > 10 else startY + 10
        cv2.putText(frame, label, (startX,Y), cv2.FONT_HERSHEY_SIMPLEX, 0.7,
                    (0,255,0), 2)
    cv2.imshow("Real-time gender detection", frame)
    # press "s" to stop
    if cv2.waitKey(1) & 0xFF == ord('s'):
        break
webcam.release()
cv2.destroyAllWindows()