pan class="defaults">[4 4 8]</span></dt><dd><p>
Specify the geometry of the descriptor as [NX NY NO], where NX
is the number of bin in the X direction, NY in the Y direction,
and NO the nubmer of orientation bins.
</p></dd><dt>
Verbose
</dt><dd><p>
If specified, be verbose.
</p></dd></dl><p>
RELATION TO THE SIFT DETECTOR
</p><p>
In the standard SIFT detector/descriptor, implemented by
<a href="%pathto:vl_sift;">VL_SIFT</a>(), the size of a spatial bin is related to the keypoint
scale by a multiplier, called