matplotlib not displaying image on Jupyter Notebook : <p>I am using ubuntu 14.04 and coding in jupyter notebook using anaconda2.7 and everything else is up to date . Today I was coding, every thing worked fine. I closed the notebook and when I reopened it, every thing worked fine except that the image was not being displayed.</p>

<pre><code>%matplotlib inline
import numpy as np
import skimage
from skimage import data
from matplotlib import pyplot as plt
%pylab inline

img = data.camera()
plt.imshow(img,cmap='gray')
</code></pre>

<p>this is the code i am using, a really simple one but doesn't display the image</p>

<pre><code>&lt;matplotlib.image.AxesImage at 0xaf7017ac&gt;
</code></pre>

<p>this is displayed in the output area
please help</p>
