opencv在facedetction中找到面部中心

时间:2016-01-14 13:08:20

标签: python opencv

我需要找到一个矩形的中心,当它在OpenCV中被检测到时会被放在脸上。我在Visual Studio中使用Python。

以下是我正在运行的代码:

#!/usr/bin/env python

from cv2 import *

import sys

cascPath = sys.argv[1]
faceCascade = CascadeClassifier(cascPath)

video_capture = VideoCapture(0)

while True:
    # Capture frame-by-frame
    ret, frame = video_capture.read()

    gray = cvtColor(frame, COLOR_BGR2GRAY)

    faces = faceCascade.detectMultiScale(
        gray,
        scaleFactor=1.1,
        minNeighbors=5,
        minSize=(30, 30),
        flags=CASCADE_SCALE_IMAGE
    )


    # Draw a rectangle around the faces
    for (x, y, w, h) in faces:
        rectangle(frame, (x, y), (x+w, y+h), (0, 255, 0), 2)

    font = FONT_HERSHEY_SIMPLEX

    # Draw text on the frame    
    putText(frame, 'Hayden' ,(10,100), font, 2,(255,255,255),2,LINE_AA)

    # Display the resulting frame
    imshow('Video', frame)


    if waitKey(1) & 0xFF == ord('q'):
        break

# When everything is done, release the capture
video_capture.release()
destroyAllWindows()

我想做的就是找到矩形的中心,非常感谢任何帮助!

1 个答案:

答案 0 :(得分:0)

我真的很抱歉,但我不知道python。 C ++中的代码是:

Point center = Point(rectangle.x + rectangle.width)/2, (rectangle.y + rectangle.height)/2);

如果这不能完全转化为python

,我会感到惊讶