title: opencv imshow() function has buttons now?
body: <p>I am using Python 2.7 with OpenCV 3.1.0 to display and interact with images. When I run my script in debug mode in pycharm everything works fine.</p>
  <p>However, when I run my script from the terminal the cv.imshow() window has buttons and mouse events which conflict with my pre-programmed ones.</p>
  <p>This is the tool-bar I get  (which is blank in debug mode):</p>
  <p><a href="https://i.stack.imgur.com/A4i0U.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/A4i0U.png" alt="enter image description here" /></a></p>
  <p>Does anyone have any ideas on how to remove this?
  I couldn't find any details in the opencv imshow() documentations</p>