如何使用python opencv将相互重叠的卡片分开？

import cv2
import numpy as np

image = cv2.imread('input_image.jpg')
gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
blur = cv2.GaussianBlur(gray, (5, 5), 0)

edges = cv2.Canny(blur, 50, 150)

contours, _ = cv2.findContours(edges, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)

contours = sorted(contours, key=cv2.contourArea, reverse=True)[:len(contours)]

separated = np.zeros_like(image)

for contour in contours:
    area = cv2.contourArea(contour)
    if area > 1000:  # 根据实际情况调整阈值
        cv2.drawContours(separated, [contour], -1, (0, 255, 0), 2)

cv2.imshow('Separated Cards', separated)
cv2.waitKey(0)
cv2.destroyAllWindows()