title: Writing an emoji on an image using opencv
body: <p>I would like to know if it is possible to write an emoji on an image with OpenCV.</p>
  
  <p>This is what I have so far.</p>
  
  <pre><code>import cv2
  import emoji
  
  img = cv2.imread('image.png')
  tick=str(emoji.emojize(':heavy_check_mark:'))
  cv2.putText(img, tick,(5,5), cv2.FONT_HERSHEY_TRIPLEX , 1, (255, 255, 255),3)
  cv2.imshow('result',img)
  cv2.waitKey(0)
  cv2.destroyAllWindows()
  
  </code></pre>
  
  <p>The above code does not work and I don't know why. Is it possible to load the tick emoji as an image (say img2) and then 'paste' it on some coordinate?</p>
  
  <p>I am using python 3.7.6 on a windows.</p>