title: Identify colour space of any image if icc_profile is empty (PIL)
body: <p>I have a huge amount of images and a lot of them have empty icc_profile when I read it using PIL. The way I am checking icc profile is:</p>
  
  <pre><code>from PIL import Image
  img = Image.open('image.jpg')
  icc = img.info.get('icc_profile', '')
  </code></pre>
  
  <p>Is there a way to identify colour space of an image (preferably using PIL) even if icc_profile is empty?</p>