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3<title>mixpp: Source Coding Routines</title>
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60<div class="contents">
61<h1>Source Coding Routines<br>
62<small>
63[<a class="el" href="group__srccode.html">Source Coding Module</a>]</small>
64</h1><table border="0" cellpadding="0" cellspacing="0">
65<tr><td></td></tr>
66<tr><td colspan="2"><br><h2>Classes</h2></td></tr>
67<tr><td class="memItemLeft" nowrap align="right" valign="top">class &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classitpp_1_1Vector__Quantizer.html">itpp::Vector_Quantizer</a></td></tr>
68
69<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Class for vector quantization.  <a href="classitpp_1_1Vector__Quantizer.html#_details">More...</a><br></td></tr>
70<tr><td class="memItemLeft" nowrap align="right" valign="top">class &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classitpp_1_1Scalar__Quantizer.html">itpp::Scalar_Quantizer</a></td></tr>
71
72<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Class for vector quantization.  <a href="classitpp_1_1Scalar__Quantizer.html#_details">More...</a><br></td></tr>
73<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
74<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classitpp_1_1Mat.html#6bba394f181c76fda12759568986c613">mat</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__sourcecoding.html#g2de93ae80767815213d3d09a4d9fb772">itpp::vqtrain</a> (Array&lt; <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &gt; &amp;DB, int SIZE, int NOITER, double STARTSTEP=0.2, bool VERBOSE=true)</td></tr>
75
76<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Function for vector quantization training.  <a href="#g2de93ae80767815213d3d09a4d9fb772"></a><br></td></tr>
77</table>
78<hr><h2>Function Documentation</h2>
79<a class="anchor" name="g2de93ae80767815213d3d09a4d9fb772"></a><!-- doxytag: member="itpp::vqtrain" ref="g2de93ae80767815213d3d09a4d9fb772" args="(Array&lt; vec &gt; &amp;DB, int SIZE, int NOITER, double STARTSTEP=0.2, bool VERBOSE=true)" -->
80<div class="memitem">
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82      <table class="memname">
83        <tr>
84          <td class="memname"><a class="el" href="classitpp_1_1Mat.html#6bba394f181c76fda12759568986c613">mat</a> itpp::vqtrain           </td>
85          <td>(</td>
86          <td class="paramtype">Array&lt; <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &gt; &amp;&nbsp;</td>
87          <td class="paramname"> <em>DB</em>, </td>
88        </tr>
89        <tr>
90          <td class="paramkey"></td>
91          <td></td>
92          <td class="paramtype">int&nbsp;</td>
93          <td class="paramname"> <em>SIZE</em>, </td>
94        </tr>
95        <tr>
96          <td class="paramkey"></td>
97          <td></td>
98          <td class="paramtype">int&nbsp;</td>
99          <td class="paramname"> <em>NOITER</em>, </td>
100        </tr>
101        <tr>
102          <td class="paramkey"></td>
103          <td></td>
104          <td class="paramtype">double&nbsp;</td>
105          <td class="paramname"> <em>STARTSTEP</em> = <code>0.2</code>, </td>
106        </tr>
107        <tr>
108          <td class="paramkey"></td>
109          <td></td>
110          <td class="paramtype">bool&nbsp;</td>
111          <td class="paramname"> <em>VERBOSE</em> = <code>true</code></td><td>&nbsp;</td>
112        </tr>
113        <tr>
114          <td></td>
115          <td>)</td>
116          <td></td><td></td><td></td>
117        </tr>
118      </table>
119</div>
120<div class="memdoc">
121
122<p>
123Function for vector quantization training.
124<p>
125The following code illustrates how the VQ can be trained.<p>
126<div class="fragment"><pre class="fragment">  VQ Quantizer;
127  mat A;
128  Array&lt;vec&gt; database;
129
130  <span class="comment">// read vectors into database somehow</span>
131  ...
132
133  <span class="comment">// train a vq</span>
134  A = <a class="code" href="group__sourcecoding.html#g2de93ae80767815213d3d09a4d9fb772" title="Function for vector quantization training.">vqtrain</a>(database, 1024, 1000000);
135  Quantizer.set_codebook(A);
136</pre></div> 
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