title: OpenCV putText() new line character
body: <p>I am using cv2.putText() to draw a text string on an image.</p>
  
  <p>When I write: </p>
  
  <pre><code>cv2.putText(img, "This is \n some text", (50,50), cv2.FONT_HERSHEY_SIMPLEX, 1, 2)
  </code></pre>
  
  <p>The text drawn on the image is:</p>
  
  <p><code>This is ? some text</code></p>
  
  <p>I was expecting the text to be printed in the new line as <code>\n</code> is an escape character for newline but it draws <code>?</code> on the image instead.</p>
  
  <p>Why this is happening ? am I doing something wrong ? </p>