title: Numpy array to PIL image format
body: <p>I'm trying to convert an image from a numpy array format to a PIL one. This is my code:</p>
  
  <pre><code>img = numpy.array(image)
  row,col,ch= np.array(img).shape
  mean = 0
  # var = 0.1
  # sigma = var**0.5
  gauss = np.random.normal(mean,1,(row,col,ch))
  gauss = gauss.reshape(row,col,ch)
  noisy = img + gauss
  im = Image.fromarray(noisy)
  </code></pre>
  
  <p>The input to this method is a PIL image. This method should add Gaussian noise to the image and return it as a PIL image once more.</p>
  
  <p>Any help is greatly appreciated! </p>