Python3.x 如何在 Python 中 cv2 的窗口标题上动态更新 FPS

我正在用python opencv做一些与视频相关的工作.我也在计算FPS，并将其显示在CV2窗口的左上角.现在，我不想在左上角显示它，而是想在窗口标题上显示它.代码如下:

import cv2
import datetime
import imutils

def GetCoord(event, x, y, flags, param):
    if event == cv2.EVENT_LBUTTONDOWN:
        print("X: {} | Y: {}".format(x, y))

winName = "My Project"
cv2.namedWindow(winName)
cv2.setMouseCallback(winName, GetCoord)

cap = cv2.VideoCapture(0)
fps_start_time = datetime.datetime.now()
fps = 0
total_frames = 0

while True:
    ret, frame = cap.read()
    frame = imutils.resize(frame, width=800)
    total_frames = total_frames + 1
    fps_end_time = datetime.datetime.now()
    time_diff = fps_end_time - fps_start_time
    if time_diff.seconds == 0:
        fps = 0.0
    else:
        fps = (total_frames / time_diff.seconds)
    fps_text = "FPS: {:.2f}".format(fps)
    cv2.putText(frame, fps_text, (5, 30), cv2.FONT_HERSHEY_COMPLEX_SMALL, 1, (0, 0, 255), 1)
    cv2.imshow(winName, frame)
    key = cv2.waitKey(1)
    if key == ord('q'):
        break

cv2.destroyAllWindows()

我不想在左上角显示它，而是想做如下操作:

cv2.imshow(winName + " FPS: {}".format(fps_text), frame)

但这样做，应用程序的运行非常奇怪，并不断打开一个新的窗口.有没有办法实现这一点？