title: Can't parse 'center'. Sequence item with index 0 has a wrong type
body: <p>I have written the following code in OpenCV in V.S. Code on Mac. I have assigned (pts1) pixel values of certains points in the image (img). But, when I try to circle the points I am getting this error:-</p>
  <pre><code>Traceback (most recent call last):
  cv.circle(img, (pts1[0][0], pts1[0][1]), 5, (0,0,255), cv.FILLED)
  cv2.error: OpenCV(4.5.2) :-1: error: (-5:Bad argument) in function 'circle'
  &gt; Overload resolution failed:
  &gt;  - Can't parse 'center'. Sequence item with index 0 has a wrong type
  &gt;  - Can't parse 'center'. Sequence item with index 0 has a wrong type
  </code></pre>
  <p>Any suggestions on how can I resolve this issue? Do let me know if you have any concerns regarding the code. Thanks for the help!</p>
  <pre><code>import cv2 as cv
  import numpy as np
  
  # Cards Image
  
  img = cv.imread('Images/cards.jpg')
  
  cv.imshow('Cards Image', img)
  
  # Step 1. Note down the pixel value of all the 4 corners from the image
  
  pts1 = np.float32([[657,122],[738,235],[478,249],[559,362]])
  
  print(pts1)
  
  cv.circle(img, (pts1[0][0], pts1[0][1]), 5, (0,0,255), cv.FILLED)
  
  # i = 0
  
  # for i in range(4):
  #     cv.circle(img, (pts1[i][0], pts1[i][1]), 5, (0,0,255), cv.FILLED)
  
  cv.waitKey(0)
  </code></pre>