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  • Committer: Package Import Robot
  • Author(s): Jeff Breidenbach
  • Date: 2014-02-03 11:10:20 UTC
  • mfrom: (1.3.1) (19.1.1 experimental)
  • Revision ID: package-import@ubuntu.com-20140203111020-igquodd7pjlp3uri
Tags: 3.03.01-1
* New upstream release, includes critical fix to PDF rendering
* Complete leptonlib transition (see bug #735509)
* Promote from experimental to unstable

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<div class="title">/usr/local/google/home/jbreiden/tesseract-ocr-read-only/classify/intfx.h File Reference</div>  </div>
 
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<div class="contents">
 
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<div class="textblock"><code>#include &quot;<a class="el" href="a00730_source.html">blobs.h</a>&quot;</code><br/>
 
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<code>#include &quot;<a class="el" href="a00911_source.html">intproto.h</a>&quot;</code><br/>
 
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<code>#include &quot;<a class="el" href="a00759_source.html">normalis.h</a>&quot;</code><br/>
 
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<code>#include &lt;math.h&gt;</code><br/>
 
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</div>
 
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<p><a href="a00907_source.html">Go to the source code of this file.</a></p>
 
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<table class="memberdecls">
 
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<tr><td colspan="2"><h2><a name="nested-classes"></a>
 
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Classes</h2></td></tr>
 
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<tr><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00422.html">INT_FX_RESULT_STRUCT</a></td></tr>
 
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<tr><td colspan="2"><h2><a name="namespaces"></a>
 
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Namespaces</h2></td></tr>
 
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<tr><td class="memItemLeft" align="right" valign="top">namespace &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a01265.html">tesseract</a></td></tr>
 
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<tr><td colspan="2"><h2><a name="func-members"></a>
 
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Functions</h2></td></tr>
 
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<tr><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00907.html#a1281b17b87e56c99d53fe6bb1f7c2d55">InitIntegerFX</a> ()</td></tr>
 
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<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00375.html">FCOORD</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00907.html#a31bfe591242811378902d7342621a59b">FeatureDirection</a> (<a class="el" href="a00831.html#a458fe97f82495945f8071bb3c18d1783">uinT8</a> theta)</td></tr>
 
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<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00630.html">TrainingSample</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a01265.html#aec054a83368226096efc7b63c67749b5">tesseract::BlobToTrainingSample</a> (const <a class="el" href="a00591.html">TBLOB</a> &amp;blob, bool nonlinear_norm, <a class="el" href="a00422.html">INT_FX_RESULT_STRUCT</a> *fx_info, <a class="el" href="a00403.html">GenericVector</a>&lt; <a class="el" href="a00421.html">INT_FEATURE_STRUCT</a> &gt; *bl_features)</td></tr>
 
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<tr><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00907.html#af18569f7217d37511e3900a20d803149">ExtractIntFeat</a> (const <a class="el" href="a00591.html">TBLOB</a> &amp;blob, bool nonlinear_norm, <a class="el" href="a00911.html#a544a6c7d78d215e9a4da202daecfeb52">INT_FEATURE_ARRAY</a> BLFeat, <a class="el" href="a00911.html#a544a6c7d78d215e9a4da202daecfeb52">INT_FEATURE_ARRAY</a> CNFeat, <a class="el" href="a00422.html">INT_FX_RESULT_STRUCT</a> *Results)</td></tr>
 
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<tr><td colspan="2"><h2><a name="var-members"></a>
 
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Variables</h2></td></tr>
 
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<tr><td class="memItemLeft" align="right" valign="top">const double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00907.html#a93b4cb1304560729fb942b6de45f12f7">kStandardFeatureLength</a> = 64.0 / 5</td></tr>
 
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</table>
 
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<hr/><h2>Function Documentation</h2>
 
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<a class="anchor" id="af18569f7217d37511e3900a20d803149"></a><!-- doxytag: member="intfx.h::ExtractIntFeat" ref="af18569f7217d37511e3900a20d803149" args="(const TBLOB &amp;blob, bool nonlinear_norm, INT_FEATURE_ARRAY BLFeat, INT_FEATURE_ARRAY CNFeat, INT_FX_RESULT_STRUCT *Results)" -->
 
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          <td class="memname">bool <a class="el" href="a00907.html#af18569f7217d37511e3900a20d803149">ExtractIntFeat</a> </td>
 
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          <td>(</td>
 
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          <td class="paramtype">const <a class="el" href="a00591.html">TBLOB</a> &amp;&#160;</td>
 
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          <td class="paramname"><em>blob</em>, </td>
 
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          <td class="paramtype">bool&#160;</td>
 
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          <td class="paramname"><em>nonlinear_norm</em>, </td>
 
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          <td></td>
 
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          <td class="paramtype"><a class="el" href="a00911.html#a544a6c7d78d215e9a4da202daecfeb52">INT_FEATURE_ARRAY</a>&#160;</td>
 
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          <td class="paramname"><em>BLFeat</em>, </td>
 
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          <td></td>
 
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          <td class="paramtype"><a class="el" href="a00911.html#a544a6c7d78d215e9a4da202daecfeb52">INT_FEATURE_ARRAY</a>&#160;</td>
 
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          <td class="paramname"><em>CNFeat</em>, </td>
 
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          <td class="paramtype"><a class="el" href="a00422.html">INT_FX_RESULT_STRUCT</a> *&#160;</td>
 
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          <td class="paramname"><em>Results</em>&#160;</td>
 
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          <td>)</td>
 
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<p>Definition at line <a class="el" href="a00906_source.html#l00513">513</a> of file <a class="el" href="a00906_source.html">intfx.cpp</a>.</p>
 
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<div class="fragment"><pre class="fragment">                                                   {
 
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  <a class="code" href="a00403.html">GenericVector&lt;INT_FEATURE_STRUCT&gt;</a> bl_features;
 
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  <a class="code" href="a00403.html">GenericVector&lt;INT_FEATURE_STRUCT&gt;</a> cn_features;
 
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  <a class="code" href="a00314.html#a2e861cf56ef6e2eb15a0f2a1544e738a">tesseract::Classify::ExtractFeatures</a>(blob, nonlinear_norm,
 
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                                       &amp;bl_features, &amp;cn_features, results,
 
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                                       NULL);
 
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  <span class="keywordflow">if</span> (bl_features.<a class="code" href="a00403.html#a111b51dd0bf1324cfb69ef70703d8e70">size</a>() == 0 || cn_features.<a class="code" href="a00403.html#a111b51dd0bf1324cfb69ef70703d8e70">size</a>() == 0 ||
 
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      bl_features.<a class="code" href="a00403.html#a111b51dd0bf1324cfb69ef70703d8e70">size</a>() &gt; <a class="code" href="a00911.html#a4f7caedc4bed99355cae19efa51ade51">MAX_NUM_INT_FEATURES</a> ||
 
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      cn_features.<a class="code" href="a00403.html#a111b51dd0bf1324cfb69ef70703d8e70">size</a>() &gt; <a class="code" href="a00911.html#a4f7caedc4bed99355cae19efa51ade51">MAX_NUM_INT_FEATURES</a>) {
 
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    <span class="keywordflow">return</span> <span class="keyword">false</span>;  <span class="comment">// Feature extraction failed.</span>
 
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  }
 
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  memcpy(baseline_features, &amp;bl_features[0],
 
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         bl_features.<a class="code" href="a00403.html#a111b51dd0bf1324cfb69ef70703d8e70">size</a>() * <span class="keyword">sizeof</span>(bl_features[0]));
 
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  memcpy(charnorm_features, &amp;cn_features[0],
 
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         cn_features.<a class="code" href="a00403.html#a111b51dd0bf1324cfb69ef70703d8e70">size</a>() * <span class="keyword">sizeof</span>(cn_features[0]));
 
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  <span class="keywordflow">return</span> <span class="keyword">true</span>;
 
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}
 
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</pre></div>
 
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</div>
 
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</div>
 
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<a class="anchor" id="a31bfe591242811378902d7342621a59b"></a><!-- doxytag: member="intfx.h::FeatureDirection" ref="a31bfe591242811378902d7342621a59b" args="(uinT8 theta)" -->
 
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<div class="memitem">
 
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          <td class="memname"><a class="el" href="a00375.html">FCOORD</a> <a class="el" href="a00907.html#a31bfe591242811378902d7342621a59b">FeatureDirection</a> </td>
 
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          <td>(</td>
 
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          <td class="paramtype"><a class="el" href="a00831.html#a458fe97f82495945f8071bb3c18d1783">uinT8</a>&#160;</td>
 
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          <td class="paramname"><em>theta</em></td><td>)</td>
 
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          <td></td>
 
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        </tr>
 
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</div>
 
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<div class="memdoc">
 
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<p>Definition at line <a class="el" href="a00906_source.html#l00070">70</a> of file <a class="el" href="a00906_source.html">intfx.cpp</a>.</p>
 
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<div class="fragment"><pre class="fragment">                                     {
 
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  <span class="keywordflow">return</span> <a class="code" href="a00375.html">FCOORD</a>(cos_table[theta], sin_table[theta]);
 
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}
 
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</pre></div>
 
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</div>
 
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</div>
 
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<a class="anchor" id="a1281b17b87e56c99d53fe6bb1f7c2d55"></a><!-- doxytag: member="intfx.h::InitIntegerFX" ref="a1281b17b87e56c99d53fe6bb1f7c2d55" args="()" -->
 
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<div class="memitem">
 
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<div class="memproto">
 
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          <td class="memname">void <a class="el" href="a00907.html#a1281b17b87e56c99d53fe6bb1f7c2d55">InitIntegerFX</a> </td>
 
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          <td>(</td>
 
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          <td class="paramname"></td><td>)</td>
 
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          <td></td>
 
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</div>
 
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<div class="memdoc">
 
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<p>---------------------------------------------------------------------------- Public Function Prototypes ----------------------------------------------------------------------------</p>
 
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<p>---------------------------------------------------------------------------- Public Code ---------------------------------------------------------------------------- </p>
 
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<p>Definition at line <a class="el" href="a00906_source.html#l00055">55</a> of file <a class="el" href="a00906_source.html">intfx.cpp</a>.</p>
 
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<div class="fragment"><pre class="fragment">                     {
 
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  <span class="keyword">static</span> <span class="keywordtype">bool</span> atan_table_init = <span class="keyword">false</span>;
 
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  <a class="code" href="a00906.html#ac4a1776ca13b7a287e68b1dcd590a240">atan_table_mutex</a>.<a class="code" href="a00296.html#a9b593dd73dc2510c71739841e37ee17c">Lock</a>();
 
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  <span class="keywordflow">if</span> (!atan_table_init) {
 
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    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; <a class="code" href="a00911.html#a5a763027f420d44c110f0887f297259c">INT_CHAR_NORM_RANGE</a>; ++i) {
 
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      cos_table[i] = cos(i * 2 * <a class="code" href="a01026.html#a598a3330b3c21701223ee0ca14316eca">PI</a> / INT_CHAR_NORM_RANGE + <a class="code" href="a01026.html#a598a3330b3c21701223ee0ca14316eca">PI</a>);
 
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      sin_table[i] = sin(i * 2 * <a class="code" href="a01026.html#a598a3330b3c21701223ee0ca14316eca">PI</a> / INT_CHAR_NORM_RANGE + <a class="code" href="a01026.html#a598a3330b3c21701223ee0ca14316eca">PI</a>);
 
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    }
 
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    atan_table_init = <span class="keyword">true</span>;
 
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  }
 
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  <a class="code" href="a00906.html#ac4a1776ca13b7a287e68b1dcd590a240">atan_table_mutex</a>.<a class="code" href="a00296.html#a0cc750edb4d5b9baca124ebee032c09b">Unlock</a>();
 
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}
 
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</pre></div>
 
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</div>
 
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</div>
 
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<hr/><h2>Variable Documentation</h2>
 
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<a class="anchor" id="a93b4cb1304560729fb942b6de45f12f7"></a><!-- doxytag: member="intfx.h::kStandardFeatureLength" ref="a93b4cb1304560729fb942b6de45f12f7" args="" -->
 
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          <td class="memname">const double <a class="el" href="a00907.html#a93b4cb1304560729fb942b6de45f12f7">kStandardFeatureLength</a> = 64.0 / 5</td>
 
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<div class="memdoc">
 
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<p>Definition at line <a class="el" href="a00907_source.html#l00046">46</a> of file <a class="el" href="a00907_source.html">intfx.h</a>.</p>
 
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