title: How to write text on image using opencv python in run-time application
body: <p>I'm trying using opencv python codes for my mini project that is Basic paint application.</p>
  
  <p>I want to write a text on my image in run-time application. Not before running the code or hard coded text. How can I do that?</p>
  
  <p>I need help for that, Thanks.</p>