title: Cursor location and pixel value in a Jupyter notebook inline image
body: <p>I am using Python 2.7.x with a Jupyter Notebook, matplotlib and %pylab backend with the inline flag 
  <code>%pylab inline
  </code>to print images below active cells.  I would like to be able to move my cursor over an image and know it's location and pixel value An example could be: 
  (x,y,val) = (123,285,230)
  but I am not particular about any of the specifics of this example.  </p>