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<!DOCTYPE group PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
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<group> |
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<p>These instructions explain how to use VLFeat from |
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MATLAB.</p> |
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<p><a href="%pathto:download;">Download</a> and unpack the latest |
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VLFeat binary distribution in a directory of your choice |
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(e.g. <code>~/src/vlfeat</code>). Let <code>VLFEATROOT</code> denote |
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this directory.</p> |
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<p>VLFeat must be added to MATLAB search path by running |
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the <code>vl_setup</code> command found in |
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the <code>VLFEATROOT/toolbox</code> directory. From MATLAB prompt |
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enter</p> |
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<pre> |
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> cd VLFEATROOT |
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> cd toolbox |
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> vl_setup |
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</pre> |
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<p>To avoid name conflicts with other MATLAB commands, all VLFeat |
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commands start with the <code>vl_</code> prefix (for instance the SIFT |
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feature extractor command is called <code>vl_sift</code>). The prefix |
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can be omitted by calling |
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<code>vl_setup('noprefix')</code> instead.</p> |
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<p><code>vl_setup</code> alters the search path for the current MATLAB |
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session only (it does not save the changes). To make the change |
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permanent, add the following fragment to your |
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<a href="http://www.google.com/search?q=site:www.mathworks.com+startup.m&btnI=I"><code>startup.m</code> file</a>:</p> |
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<pre> |
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p=pwd ; |
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cd VLFEATROOT ; |
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cd toolbox ; |
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vl_setup ; |
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cd(p) ; |
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clear p |
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</pre> |
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<p>Alternatively, you can use the |
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<a href="http://www.google.com/search?q=site:www.mathworks.com+savepath&btnI=I"><code>savepath</code> |
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command</a> to save the updated search paths.</p> |
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<p>All commands embed interface documentation that can be viewed with |
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the |
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builtin <a href="http://www.google.com/search?q=site:www.mathworks.com+help&btnI=I"><code>help</code> |
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command</a> (e.g. <code>help vl_sift</code>).</p> |
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</group> |
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