descriptor calculation. Unfortunately none of the
built-in descriptors is affine invariant so only similarity invariant SIFTs is
used. </p>

<precode type="matlab">
mserWithSift = localFeatures.DescriptorAdapter(mser, sift);
featureExtractors = {sift, thrSift, mserWithSift};
</precode>

<p>
The matching benchmark object can be constructed.
</p>

<precode type="matlab">
matchingBenchmark = RepeatabilityBenchmark('Mode','MatchingScore');
</precode>

<p>
The rest is the same as for repeatability.
</p>

<precod