ith the upper-left
corner of the rectangle.
</p><p>
By default, <a href="%pathto:vl_dsift;">VL_DSIFT</a>() computes features equivalent to
<a href="%pathto:vl_sift;">VL_SIFT</a>(). However, the FAST option can be used to turn on an
variant of the descriptor (see VLFeat C API documentation for
further details) which, while not strictly equivalent, it is much
faster.
</p><p>
<a href="%pathto:vl_dsift;">VL_DSIFT</a>() accepts the following options:
</p><dl><dt>
Step
<span class="defaults">1</span></dt><dd><p>
