message: Fixed minor doc issue
diff: @@ -35,7 +35,7 @@ img = cv2.imread('wiki.jpg',0)
  hist,bins = np.histogram(img.flatten(),256,[0,256])
  cdf = hist.cumsum()
  -cdf_normalized = cdf * hist.max()/ cdf.max()
  +cdf_normalized = cdf * float(hist.max()) / cdf.max()
  plt.plot(cdf_normalized, color = 'b')
  plt.hist(img.flatten(),256,[0,256], color = 'r')
  