title: numpy.array of an "I;16" Image file
body: <p>I want to use TIFF images to effectively save large arrays of measurement data. With setting them to mode="I;16" (corresponding to my 16 bit data range), they yield 2MB files (~1000x1000 "pixel"). Which is good.</p>
  
  <p>However I am having troubles reconverting them into arrays when it comes to analysing them. For 32bit data (-> "I") the numpy.array command works fine. In case of "I;16" the result is a 0D numpy array with the TIFF as the [0,0] entry. </p>
  
  <p>Is there a way to get that to work? I would really like to avoid using 32bit images, as I don't need the range and it doubles the HDD space required (lots and lots of those measurements planned...)</p>