title: Matlab estimateUncalibratedRectification function for column rectification
body: <p>Can I somehow use estimateUncalibratedRectification function from Stereo Vision toolbox in Matlab to rectify images in such a way that corresponding points will appear on the same columns?</p>
  
  <p>From demo Stereo Image Rectification it seems to do only row rectification. I tried to flip x and y in such a way:</p>
  
  <pre><code>F = estimateFundamentalMatrix(fliplr(features1), fliplr(features2), 'Method', 'Norm8Point');
  [T1, T2] = estimateUncalibratedRectification(F, fliplr(features1), fliplr(features2), size(image1));
  T1 = flipXY(T1);
  T2 = flipXY(T2);
  </code></pre>
  
  <p>where </p>
  
  <pre><code>function newT = flipXY(T)
     newT = [T(2, 2), T(2, 1), T(2, 3); ...
             T(1, 2), T(1, 1), T(1, 3); ...
             T(3, 2), T(3, 1), T(3, 3)];
  end
  </code></pre>
  
  <p>but it seems not work.</p>