title: How do I isolate handwritten text from an image using OpenCV and Python?
body: <p>How do I isolate or crop only the handwritten text using OpenCV and Phyton for the image: </p>
  
  <p><img src="https://i.stack.imgur.com/Kdup5.jpg" alt="Handwritten image"></p>
  
  <p>I have tried to use:</p>
  
  <pre><code>cv2.findContours
  </code></pre>
  
  <p>but because of the noise (background and dirty in paper) I can't get only the paper.</p>
  
  <p>How do I do this? </p>