如何在OpenCV和Python中为被追踪的对象绘制路径行进线

import cv2
import numpy as np

# 创建一个空白画布
canvas = np.zeros((500, 500, 3), dtype=np.uint8)

# 定义对象的初始位置
object_position = (250, 250)

# 定义路径行进线的颜色和线宽
line_color = (0, 255, 0)
line_thickness = 2

def draw_path(canvas, position):
    # 绘制路径行进线
    cv2.circle(canvas, position, 2, line_color, -1)

while True:
    # 获取当前帧
    ret, frame = cap.read()

    # 对当前帧进行处理和分析，得到对象的位置
    object_position = track_object(frame)

    # 绘制路径行进线
    draw_path(canvas, object_position)

    # 显示当前帧和路径行进线
    cv2.imshow("Frame", frame)
    cv2.imshow("Path", canvas)

    # 按下 'q' 键退出循环
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()