tent">
   Number of correspondences, graffiti dataset.
  </span>
 </div>
</div>

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<h2 id="tut.rep.correspondences">Displaying the correspondences</h2>
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<p> It is useful to see the feature frames correspondences. Let's see what
correspondences have been found between the features detected by VLF-SIFT
feature extractor in the first and the third image. We can get the cropped