title: smoothing imshow plot with matplotlib
body: <p>I am plotting a density of counts with imshow from matplotlib.pyplot but I'd like to have a smoother plot.</p>
  
  <p><a href="https://i.stack.imgur.com/8kraS.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/8kraS.png" alt="enter image description here"></a></p>
  
  <p>Can I apply any filter on this?</p>