title: How to get contour area in skimage
body: <p>I've defined contours in skimage following <a href="http://scikit-image.org/docs/dev/auto_examples/edges/plot_contours.html?highlight=contour" rel="noreferrer">documenation</a>:</p>
  
  <pre><code>contours = measure.find_contours(img, 0.8)
  </code></pre>
  
  <p>In OpenCV area could be obtained using:</p>
  
  <pre><code>cv2.contourArea(cnt)
  </code></pre>
  
  <p>Does skimage contains something similar (functionality for contour features)?</p>