title: Error (-215) size.width>0 && size.height>0 occurred when attempting to display an image using OpenCV
body: <p>I am trying to run a simple program that reads an image from OpenCV. However, I am getting this error:</p>
  
  <pre><code>error: ......\modules\highgui\src\window.cpp:281: error: (-215) size.width&gt;0 &amp;&amp; size.height&gt;0 in function cv::imshow
  </code></pre>
  
  <p>Any idea what this error means?</p>
  
  <p>Here is my code:</p>
  
  <pre><code>from matplotlib import pyplot as plt
  import numpy as np
  import cv2
  
  img = cv2.imread('C:\\Utilisateurs\\Zeineb\\Bureau\\image.jpg',0)
  cv2.imshow('image',img)
  cv2.waitKey(0)
  cv2.destroyAllWindows()
  </code></pre>