title: Saving a PNG to a Redis Server
body: <p>I'm trying to save a png generated by Canvas2Image to a Redis server and then display it again as an image.
  I can't think of any way to do this and by searching Google I can't find any solution. Does anybody know how to do this?</p>
  
  <p>This is for a website I'm making where anybody can draw on a canvas in real time.</p>