一直出现Traceback (most recent call last):
File "C:\Users\zhangguohui\PycharmProjects\pythonProject11\test2.py", line 48, in
ret, mtx, dist, rvecs, tvecs = cv2.calibrateCamera(objpoints, imgpoints, (w,h), None, None)
cv2.error: OpenCV(4.7.0) D:\a\opencv-python\opencv-python\opencv\modules\calib3d\src\calibration.cpp:3749: error: (-215:Assertion failed) nimages > 0 in function 'cv::calibrateCameraRO'