title: How do can I use OpenCV imshow to display the most recent image in a loop without keyboard feedback
body: <p>I am running an image processing loop with OpenCV in Python and I would like to display the most recent image mask in my <code>imshow</code> window. So whenever the loop calculates a new mask, it updates the <code>imshow</code> window (at about 6Hz). However, I can't get <code>imshow</code> to return control without waiting for a keyboard interrupt. Any suggestions? Is there a better library to use for this?</p>