Pycharm中的FlannBasedMatcher中的错误

如何解决Pycharm中的FlannBasedMatcher中的错误

嗨，我写了这些代码：

import numpy as np
import cv2
from matplotlib import pyplot as plt
cap = cv2.imread('mario.png',0)
model = cv2.imread('mario 3d.jpg',0)
cv2.imshow('image',cap)
f = cv2.waitKey(0)
corners1 = cv2.goodFeaturesToTrack(cap,20,0.01,10)
corners2 = cv2.goodFeaturesToTrack(model,10)
corner1 = np.int0(corners1)
corner2 = np.int0(corners2)
for i in corner1:
x,y = i.ravel()
cv2.circle(cap,(x,y),50,0)
plt.imshow(cap),plt.show()
MIN_MATCHES = 15
for i in corner2:
    x,y = i.ravel()
    cv2.circle(model,0)
    plt.imshow(model),plt.show()
    MIN_MATCHES = 15
    FLANN_INDEX_KDTREE = 1
    index_params = dict(algorithm=FLANN_INDEX_KDTREE,trees=5)
    search_params = dict(checks=30)
    flann = cv2.FlannBasedMatcher(index_params,search_params)
    matches = flann.knnMatch(corners1,corners2,k=2)

但是运行后，这些错误出现在最后一个代码行中：

matches = flann.knnMatch（corners1，corners2，k = 2）

cv2.error：OpenCV（4.4.0）C：\ Users \ appveyor \ AppData \ Local \ Temp \ 1 \ pip-req-build-cff9bdsm \ opencv \ modules \ flann \ src \ miniflann.cpp：315：函数'cv :: flann :: buildindex_'中的错误：（-210：不支持的格式或格式组合）

type = 13

有人对此错误有任何想法或评论吗？