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65<h1>vq.h</h1><a href="vq_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
66<a name="l00029"></a>00029 <span class="preprocessor">#ifndef VQ_H</span>
67<a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#define VQ_H</span>
68<a name="l00031"></a>00031 <span class="preprocessor"></span>
69<a name="l00032"></a>00032 <span class="preprocessor">#include &lt;<a class="code" href="vec_8h.html" title="Templated Vector Class Definitions.">itpp/base/vec.h</a>&gt;</span>
70<a name="l00033"></a>00033 <span class="preprocessor">#include &lt;<a class="code" href="sort_8h.html" title="Sorting functions.">itpp/base/sort.h</a>&gt;</span>
71<a name="l00034"></a>00034 <span class="preprocessor">#include &lt;<a class="code" href="log__exp_8h.html" title="Logarithmic and exponenential functions - header file.">itpp/base/math/log_exp.h</a>&gt;</span>
72<a name="l00035"></a>00035
73<a name="l00036"></a>00036 <span class="keyword">namespace </span>itpp
74<a name="l00037"></a>00037 {
75<a name="l00038"></a>00038
76<a name="l00039"></a>00039
77<a name="l00062"></a><a class="code" href="classitpp_1_1Vector__Quantizer.html">00062</a> <span class="keyword">class </span><a class="code" href="classitpp_1_1Vector__Quantizer.html" title="Class for vector quantization.">Vector_Quantizer</a>
78<a name="l00063"></a>00063 {
79<a name="l00064"></a>00064 <span class="keyword">public</span>:
80<a name="l00066"></a>00066   <a class="code" href="classitpp_1_1Vector__Quantizer.html#b70eb8935871395a27346aefc092a047" title="Default constructor.">Vector_Quantizer</a>();
81<a name="l00068"></a>00068   <a class="code" href="classitpp_1_1Vector__Quantizer.html#b70eb8935871395a27346aefc092a047" title="Default constructor.">Vector_Quantizer</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="classitpp_1_1Name.html" title="Automatic naming when savingAn easy way to give a variable a name and optionally...">Name</a>);
82<a name="l00070"></a>00070   <span class="keywordtype">int</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#4a51a14da06c9738abd6a27a24c7071c" title="Encode the input vector.">encode</a>(<span class="keyword">const</span> vec &amp;x);
83<a name="l00072"></a>00072   ivec <a class="code" href="classitpp_1_1Vector__Quantizer.html#4a51a14da06c9738abd6a27a24c7071c" title="Encode the input vector.">encode</a>(<span class="keyword">const</span> vec &amp;x, <span class="keywordtype">int</span> num);
84<a name="l00074"></a>00074   vec <a class="code" href="classitpp_1_1Vector__Quantizer.html#5c0e94884ce8109500d0e1e80e8f6f49" title="Decode the index.">decode</a>(<span class="keywordtype">int</span> Index) <span class="keyword">const</span>;
85<a name="l00076"></a>00076   <a class="code" href="classitpp_1_1Array.html">Array&lt;vec&gt;</a> <a class="code" href="classitpp_1_1Vector__Quantizer.html#5c0e94884ce8109500d0e1e80e8f6f49" title="Decode the index.">decode</a>(<span class="keyword">const</span> ivec &amp;Index) <span class="keyword">const</span>;
86<a name="l00078"></a>00078   vec <a class="code" href="classitpp_1_1Vector__Quantizer.html#650aebaaf39fe0f203a2ba592f41da4c" title="Quantize the input vector.">Q</a>(<span class="keyword">const</span> vec &amp;x);
87<a name="l00080"></a>00080   vec <a class="code" href="classitpp_1_1Vector__Quantizer.html#1c01451b5e67befeca140af8c2b74341" title="Quantize the input vector.">operator()</a>(<span class="keyword">const</span> vec &amp;x);
88<a name="l00082"></a>00082   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#3fbbf6a43917e93a213a879b867c1860" title="Initialize the codebook by a matrix.">set_codebook</a>(<span class="keyword">const</span> mat &amp;CB);
89<a name="l00084"></a>00084   mat <a class="code" href="classitpp_1_1Vector__Quantizer.html#349e9188c31a8963ed16e135a3778ac6" title="Returns the codebook.">get_codebook</a>() <span class="keyword">const</span>;
90<a name="l00086"></a>00086   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#69efdc19d6d85fac351937fde067a149" title="Set a codevector in the codebook.">set_codevector</a>(<span class="keywordtype">int</span> Index, <span class="keyword">const</span> vec &amp;indata);
91<a name="l00088"></a>00088   vec <a class="code" href="classitpp_1_1Vector__Quantizer.html#af1ea157ef27a25fec39a46fce6df33a" title="Returns the codevector at the given index.">get_codevector</a>(<span class="keywordtype">int</span> Index) <span class="keyword">const</span>;
92<a name="l00090"></a>00090   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#0f863a2e16134d4076b456c3f698687b" title="Rescale and translate a codevector.">modify_codevector</a>(<span class="keywordtype">int</span> no, <span class="keywordtype">double</span> mul, <span class="keyword">const</span> vec &amp;<span class="keyword">add</span>);
93<a name="l00092"></a>00092   <span class="keywordtype">int</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#28950d7d234af8eb427f2ca7a22f7b6d" title="Returns the size (number of codevectors) of the VQ.">size</a>() <span class="keyword">const</span>;
94<a name="l00094"></a>00094   <span class="keywordtype">int</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#d61b7199bfcd34838abacc717371d5cf" title="Returns the dimension of the VQ.">dim</a>() <span class="keyword">const</span>;
95<a name="l00096"></a>00096   <span class="keywordtype">int</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#b79d19121e86b735b90f445d642c8eef" title="Returns the number of bits of the VQ [log2(size)/dim].">nobits</a>() <span class="keyword">const</span>;
96<a name="l00103"></a>00103   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#8378151d35b86475caedaf63d1a7b6a1" title="Load the codebook from a file.">load</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *Name);
97<a name="l00110"></a>00110   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#ddf2ffdf0d59b8f7ecf28fac780617ab" title="Save the codebook to a file.">save</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *Name) <span class="keyword">const</span>;
98<a name="l00112"></a>00112   <span class="keywordtype">double</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#954211b1d52c23ef20545c7f74a25738" title="Returns the distortion at the latest time a vector was encoded.">latest_distortion</a>();
99<a name="l00113"></a>00113 <span class="keyword">protected</span>:
100<a name="l00115"></a><a class="code" href="classitpp_1_1Vector__Quantizer.html#c6220558e3863332c7094a328a5c3e50">00115</a>   vec <a class="code" href="classitpp_1_1Vector__Quantizer.html#c6220558e3863332c7094a328a5c3e50" title="The vector containing the code book.">CodeBook</a>;
101<a name="l00117"></a><a class="code" href="classitpp_1_1Vector__Quantizer.html#7fb09561c02521795c19679c520829e5">00117</a>   <span class="keywordtype">int</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#7fb09561c02521795c19679c520829e5" title="The size of the code book.">Size</a>;
102<a name="l00119"></a><a class="code" href="classitpp_1_1Vector__Quantizer.html#cecdbde8911852c5472b28e7fb8609bb">00119</a>   <span class="keywordtype">int</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#cecdbde8911852c5472b28e7fb8609bb" title="The dimension of the code book.">Dim</a>;
103<a name="l00121"></a><a class="code" href="classitpp_1_1Vector__Quantizer.html#c7cc12cb59533ac4cc4603d7fadc1738">00121</a>   <span class="keywordtype">double</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#c7cc12cb59533ac4cc4603d7fadc1738" title="The distortion at the latest time a vector was encoded.">LatestDist</a>;
104<a name="l00122"></a>00122 };
105<a name="l00123"></a>00123
106<a name="l00124"></a>00124 <span class="comment">// INLINE FUNCTIONS</span>
107<a name="l00125"></a>00125
108<a name="l00126"></a><a class="code" href="classitpp_1_1Vector__Quantizer.html#28950d7d234af8eb427f2ca7a22f7b6d">00126</a> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#28950d7d234af8eb427f2ca7a22f7b6d" title="Returns the size (number of codevectors) of the VQ.">Vector_Quantizer::size</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#7fb09561c02521795c19679c520829e5" title="The size of the code book.">Size</a>; }
109<a name="l00127"></a><a class="code" href="classitpp_1_1Vector__Quantizer.html#b79d19121e86b735b90f445d642c8eef">00127</a> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#b79d19121e86b735b90f445d642c8eef" title="Returns the number of bits of the VQ [log2(size)/dim].">Vector_Quantizer::nobits</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="group__logexpfunc.html#g4a774bd5418520f574eddf730333dada" title="Calculate the number of bits needed to represent a numer of levels saved in a vector...">levels2bits</a>(<a class="code" href="classitpp_1_1Vector__Quantizer.html#7fb09561c02521795c19679c520829e5" title="The size of the code book.">Size</a>); }
110<a name="l00128"></a><a class="code" href="classitpp_1_1Vector__Quantizer.html#d61b7199bfcd34838abacc717371d5cf">00128</a> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#d61b7199bfcd34838abacc717371d5cf" title="Returns the dimension of the VQ.">Vector_Quantizer::dim</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#cecdbde8911852c5472b28e7fb8609bb" title="The dimension of the code book.">Dim</a>; }
111<a name="l00129"></a><a class="code" href="classitpp_1_1Vector__Quantizer.html#954211b1d52c23ef20545c7f74a25738">00129</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#954211b1d52c23ef20545c7f74a25738" title="Returns the distortion at the latest time a vector was encoded.">Vector_Quantizer::latest_distortion</a>() { <span class="keywordflow">return</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#c7cc12cb59533ac4cc4603d7fadc1738" title="The distortion at the latest time a vector was encoded.">LatestDist</a>; }
112<a name="l00130"></a><a class="code" href="classitpp_1_1Vector__Quantizer.html#5c0e94884ce8109500d0e1e80e8f6f49">00130</a> <span class="keyword">inline</span> vec <a class="code" href="classitpp_1_1Vector__Quantizer.html#5c0e94884ce8109500d0e1e80e8f6f49" title="Decode the index.">Vector_Quantizer::decode</a>(<span class="keywordtype">int</span> Index)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#af1ea157ef27a25fec39a46fce6df33a" title="Returns the codevector at the given index.">get_codevector</a>(Index); }
113<a name="l00131"></a><a class="code" href="classitpp_1_1Vector__Quantizer.html#650aebaaf39fe0f203a2ba592f41da4c">00131</a> <span class="keyword">inline</span> vec <a class="code" href="classitpp_1_1Vector__Quantizer.html#650aebaaf39fe0f203a2ba592f41da4c" title="Quantize the input vector.">Vector_Quantizer::Q</a>(<span class="keyword">const</span> vec &amp;x) { <span class="keywordflow">return</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#5c0e94884ce8109500d0e1e80e8f6f49" title="Decode the index.">decode</a>(<a class="code" href="classitpp_1_1Vector__Quantizer.html#4a51a14da06c9738abd6a27a24c7071c" title="Encode the input vector.">encode</a>(x)); }
114<a name="l00132"></a><a class="code" href="classitpp_1_1Vector__Quantizer.html#1c01451b5e67befeca140af8c2b74341">00132</a> <span class="keyword">inline</span> vec <a class="code" href="classitpp_1_1Vector__Quantizer.html#1c01451b5e67befeca140af8c2b74341" title="Quantize the input vector.">Vector_Quantizer::operator()</a>(<span class="keyword">const</span> vec &amp;x) { <span class="keywordflow">return</span> <a class="code" href="classitpp_1_1Vector__Quantizer.html#650aebaaf39fe0f203a2ba592f41da4c" title="Quantize the input vector.">Q</a>(x); }
115<a name="l00133"></a>00133
116<a name="l00152"></a><a class="code" href="classitpp_1_1Scalar__Quantizer.html">00152</a> <span class="keyword">class </span><a class="code" href="classitpp_1_1Scalar__Quantizer.html" title="Class for vector quantization.">Scalar_Quantizer</a>
117<a name="l00153"></a>00153 {
118<a name="l00154"></a>00154 <span class="keyword">public</span>:
119<a name="l00156"></a>00156   <a class="code" href="classitpp_1_1Scalar__Quantizer.html#f73dcc2779186b029f49d600bc56ac3c" title="Default constructor.">Scalar_Quantizer</a>();
120<a name="l00158"></a>00158   <a class="code" href="classitpp_1_1Scalar__Quantizer.html#f73dcc2779186b029f49d600bc56ac3c" title="Default constructor.">Scalar_Quantizer</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="classitpp_1_1Name.html" title="Automatic naming when savingAn easy way to give a variable a name and optionally...">Name</a>);
121<a name="l00160"></a>00160   <span class="keywordtype">int</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#993310523150d96f08e1946f250fd6c8" title="Encode.">encode</a>(<span class="keywordtype">double</span> x) <span class="keyword">const</span>;
122<a name="l00162"></a>00162   ivec <a class="code" href="classitpp_1_1Scalar__Quantizer.html#993310523150d96f08e1946f250fd6c8" title="Encode.">encode</a>(<span class="keyword">const</span> vec &amp;x) <span class="keyword">const</span>;
123<a name="l00164"></a>00164   <span class="keywordtype">double</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#9fbb81df938f0fa61df1ce1ecd7335c8" title="Decode the index.">decode</a>(<span class="keywordtype">int</span> Index) <span class="keyword">const</span>;
124<a name="l00166"></a>00166   vec <a class="code" href="classitpp_1_1Scalar__Quantizer.html#9fbb81df938f0fa61df1ce1ecd7335c8" title="Decode the index.">decode</a>(<span class="keyword">const</span> ivec &amp;Index) <span class="keyword">const</span>;
125<a name="l00168"></a>00168   <span class="keywordtype">double</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#21415f4d555d724f598842ee704fa00b" title="Quantize.">Q</a>(<span class="keywordtype">double</span> x) <span class="keyword">const</span>;
126<a name="l00170"></a>00170   vec <a class="code" href="classitpp_1_1Scalar__Quantizer.html#21415f4d555d724f598842ee704fa00b" title="Quantize.">Q</a>(<span class="keyword">const</span> vec &amp;x) <span class="keyword">const</span>;
127<a name="l00172"></a>00172   <span class="keywordtype">double</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#a8962a3fa882e11e3d8c53f7fb30e345" title="Quantize.">operator()</a>(<span class="keywordtype">double</span> x) <span class="keyword">const</span>;
128<a name="l00174"></a>00174   vec <a class="code" href="classitpp_1_1Scalar__Quantizer.html#a8962a3fa882e11e3d8c53f7fb30e345" title="Quantize.">operator()</a>(<span class="keyword">const</span> vec &amp;x) <span class="keyword">const</span>;
129<a name="l00176"></a>00176   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#620a3920dd245d4d11a1529846ed3dd0" title="Initialize the codebook by a matrix.">set_levels</a>(<span class="keyword">const</span> vec &amp;L);
130<a name="l00178"></a>00178   vec <a class="code" href="classitpp_1_1Scalar__Quantizer.html#0aa1f8dba47dfb2a230c7759cde0b284" title="Returns the codebook.">get_levels</a>() <span class="keyword">const</span>;
131<a name="l00180"></a>00180   <span class="keywordtype">int</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#95ec523ac68942d0ddcbaa6a36931f6c" title="Returns the size (number of codevectors) of the VQ.">size</a>() <span class="keyword">const</span>;
132<a name="l00181"></a>00181 <span class="keyword">protected</span>:
133<a name="l00183"></a><a class="code" href="classitpp_1_1Scalar__Quantizer.html#b2e70d0c59ab2b4de616b4a687135d00">00183</a>   vec <a class="code" href="classitpp_1_1Scalar__Quantizer.html#b2e70d0c59ab2b4de616b4a687135d00" title="The vector containing the code book.">Levels</a>;
134<a name="l00185"></a><a class="code" href="classitpp_1_1Scalar__Quantizer.html#2e93c197ff825e6f090d636ad6d3a374">00185</a>   <span class="keywordtype">double</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#2e93c197ff825e6f090d636ad6d3a374" title="The distortion at the latest time a vector was encoded.">LatestDist</a>;
135<a name="l00186"></a>00186 };
136<a name="l00187"></a>00187
137<a name="l00188"></a><a class="code" href="classitpp_1_1Scalar__Quantizer.html#95ec523ac68942d0ddcbaa6a36931f6c">00188</a> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#95ec523ac68942d0ddcbaa6a36931f6c" title="Returns the size (number of codevectors) of the VQ.">Scalar_Quantizer::size</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#b2e70d0c59ab2b4de616b4a687135d00" title="The vector containing the code book.">Levels</a>.length(); }
138<a name="l00189"></a><a class="code" href="classitpp_1_1Scalar__Quantizer.html#9fbb81df938f0fa61df1ce1ecd7335c8">00189</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#9fbb81df938f0fa61df1ce1ecd7335c8" title="Decode the index.">Scalar_Quantizer::decode</a>(<span class="keywordtype">int</span> Index)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#b2e70d0c59ab2b4de616b4a687135d00" title="The vector containing the code book.">Levels</a>(Index); }
139<a name="l00190"></a><a class="code" href="classitpp_1_1Scalar__Quantizer.html#21415f4d555d724f598842ee704fa00b">00190</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#21415f4d555d724f598842ee704fa00b" title="Quantize.">Scalar_Quantizer::Q</a>(<span class="keywordtype">double</span> x)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#9fbb81df938f0fa61df1ce1ecd7335c8" title="Decode the index.">decode</a>(<a class="code" href="classitpp_1_1Scalar__Quantizer.html#993310523150d96f08e1946f250fd6c8" title="Encode.">encode</a>(x)); }
140<a name="l00191"></a><a class="code" href="classitpp_1_1Scalar__Quantizer.html#a8962a3fa882e11e3d8c53f7fb30e345">00191</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#a8962a3fa882e11e3d8c53f7fb30e345" title="Quantize.">Scalar_Quantizer::operator()</a>(<span class="keywordtype">double</span> x)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#21415f4d555d724f598842ee704fa00b" title="Quantize.">Q</a>(x); }
141<a name="l00192"></a><a class="code" href="classitpp_1_1Scalar__Quantizer.html#b3de4654438e720659fdb59ec1432b32">00192</a> <span class="keyword">inline</span> vec <a class="code" href="classitpp_1_1Scalar__Quantizer.html#a8962a3fa882e11e3d8c53f7fb30e345" title="Quantize.">Scalar_Quantizer::operator()</a>(<span class="keyword">const</span> vec &amp;x)<span class="keyword">  const </span>{ <span class="keywordflow">return</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#21415f4d555d724f598842ee704fa00b" title="Quantize.">Q</a>(x); }
142<a name="l00193"></a><a class="code" href="classitpp_1_1Scalar__Quantizer.html#620a3920dd245d4d11a1529846ed3dd0">00193</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#620a3920dd245d4d11a1529846ed3dd0" title="Initialize the codebook by a matrix.">Scalar_Quantizer::set_levels</a>(<span class="keyword">const</span> vec &amp;L) {<a class="code" href="classitpp_1_1Scalar__Quantizer.html#b2e70d0c59ab2b4de616b4a687135d00" title="The vector containing the code book.">Levels</a> = L;sort(<a class="code" href="classitpp_1_1Scalar__Quantizer.html#b2e70d0c59ab2b4de616b4a687135d00" title="The vector containing the code book.">Levels</a>); }
143<a name="l00194"></a><a class="code" href="classitpp_1_1Scalar__Quantizer.html#0aa1f8dba47dfb2a230c7759cde0b284">00194</a> <span class="keyword">inline</span> vec <a class="code" href="classitpp_1_1Scalar__Quantizer.html#0aa1f8dba47dfb2a230c7759cde0b284" title="Returns the codebook.">Scalar_Quantizer::get_levels</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> <a class="code" href="classitpp_1_1Scalar__Quantizer.html#b2e70d0c59ab2b4de616b4a687135d00" title="The vector containing the code book.">Levels</a>; }
144<a name="l00195"></a>00195
145<a name="l00197"></a>00197 <span class="keywordtype">int</span> scalar_encode(<span class="keywordtype">double</span> x, vec &amp;Levels) ;
146<a name="l00199"></a>00199 ivec scalar_encode(vec &amp;x, vec &amp;Levels);
147<a name="l00201"></a>00201 <span class="keyword">inline</span> <span class="keywordtype">double</span> scalar_quantize(<span class="keywordtype">double</span> x, vec &amp;Levels) { <span class="keywordflow">return</span> Levels(scalar_encode(x, Levels)); }
148<a name="l00203"></a>00203 <span class="keyword">inline</span> vec scalar_quantize(vec &amp;x, vec &amp;Levels) { <span class="keywordflow">return</span> Levels(scalar_encode(x, Levels)); }
149<a name="l00204"></a>00204
150<a name="l00205"></a>00205
151<a name="l00206"></a>00206 } <span class="comment">// namespace itpp</span>
152<a name="l00207"></a>00207
153<a name="l00208"></a>00208 <span class="preprocessor">#endif // #ifndef VQ_H</span>
154</pre></div></div>
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