OpenCV Assertion failed: (-215:Assertion failed) npoints >= 0 && (depth == CV_32F || depth == CV_32S)

Question

I have found the following code on this website:

import os
import os.path
import cv2
import glob
import imutils
CAPTCHA_IMAGE_FOLDER = \"generated_captcha_im         


        

Answer 1

 (x, y, w, h) = cv2.boundingRect(contour.astype(np.int))