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<h1 id="tut.mser.conventions">Conventions</h1>
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<p>As mentioned in the introduction, <code>vl_mser</code> uses
matrix indices as image coordinates. Compared to the usual MATLAB
convention for images, this means that the <code>x</code>
and <code>y</code> axis are swapped (this has been done to make the
convention consistent with images with three or more dimensions). Thus
the frames computed by