Python/OpenCV 网络摄像头向后移动

Question

我不确定问题是什么，但是当我在网络摄像头上四处走动时，它会捕捉到我的脸，但它不是我动作的镜子，而是向后/倒转。

有谁知道如何解决这一问题？

def Webcam(webcam, classifier, downScale):
        
        if webcam.isOpened():
                rval, frame = webcam.read()
        else:
                rval = False

        while rval:
                # detect faces and draw bounding boxes
                minisize = (frame.shape[1]/downScale,frame.shape[0]/downScale)
                miniframe = cv2.resize(frame, minisize)
                faces = classifier.detectMultiScale(miniframe)
                for f in faces:
                        x, y, w, h = [ v*downScale for v in f ]
                        cv2.rectangle(frame, (x,y), (x+w,y+h), (0,0,255))
         
                cv2.putText(frame, "Press ESC to close.", (5, 25),
                                        cv2.FONT_HERSHEY_SIMPLEX, 1.0, (255,255,255))
                cv2.imshow("Face Crop", frame)
         
                # get next frame
                rval, frame = webcam.read()
         
                key = cv2.waitKey(10)
                if key in [27, ord('Q'), ord('q')]: # exit on ESC
                        break   

Answer 1

相机不是镜子。

但是您可以轻松翻转（）使其表现得像一面镜子：

rval, frame = webcam.read()
frame = cv2.flip(frame,1)