title: Pencil drawing on a tkinter canvas
body: <p>I am trying to draw with a &quot;pencilish&quot; look on a tkinter canvas. I can draw on the canvas like how a marker draws, here is an image.</p>
  <p><a href="https://i.stack.imgur.com/gg7Ol.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/gg7Ol.png" alt="enter image description here" /></a></p>
  <p>I would also like to be able to draw like in a &quot;Pencilish&quot; style, here is a picture to what I mean(pic from paint 3d)</p>
  <p><a href="https://i.stack.imgur.com/7mZMd.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7mZMd.png" alt="enter image description here" /></a></p>
  <p>I think it would be possible with <code>numpy</code>, <code>PIL</code> or <code>Open CV2</code> but I have no idea on how to draw a pencil sketch. The only info I could get is how to convert the whole image to a pencil sketch.</p>