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<title>steghide: JpegSampleValue Class Reference</title>
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<h1>JpegSampleValue Class Reference</h1><!-- doxytag: class="JpegSampleValue" --><!-- doxytag: inherits="SampleValue" --><code>#include <<a class="el" href="JpegSampleValue_8h_source.html">JpegSampleValue.h</a>></code>
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Inheritance diagram for JpegSampleValue:</div>
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<p><center><img src="classJpegSampleValue.png" usemap="#JpegSampleValue_map" border="0" alt=""></center>
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<a href="classJpegSampleValue-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
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<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classJpegSampleValue.html#56c663648ba670a7e9dfe75326940227">JpegSampleValue</a> (int c)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classSampleValue.html">SampleValue</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classJpegSampleValue.html#d4e9adaf0f0de519ee06d6868dbd17dc">getNearestTargetSampleValue</a> (<a class="el" href="common_8h.html#cf820202f81f25eb00734eac0d7aed2d">EmbValue</a> t) const </td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="common_8h.html#6b8592979b076e06aa233e3f586ac999">UWORD32</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classJpegSampleValue.html#3d1c422d07e9d9644080313c92a21ea0">calcDistance</a> (const <a class="el" href="classSampleValue.html">SampleValue</a> *s) const </td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="classJpegSampleValue.html#dab7120fa72b4672200f5556062f77b0">getName</a> (void) const </td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="common_8h.html#75e993730bc2fad258c1f7becd24fec9">SWORD16</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classJpegSampleValue.html#6999704b4827cd487cdd8f6a5ac3ecfd">getDctCoeff</a> (void) const </td></tr>
<tr><td colspan="2"><br><h2>Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static <a class="el" href="common_8h.html#cf820202f81f25eb00734eac0d7aed2d">EmbValue</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classJpegSampleValue.html#06fbe97eb12bf1b5c5ad6f995973f2d2">calcEValue</a> (<a class="el" href="common_8h.html#75e993730bc2fad258c1f7becd24fec9">SWORD16</a> dctc)</td></tr>
<tr><td colspan="2"><br><h2>Private Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="common_8h.html#75e993730bc2fad258c1f7becd24fec9">SWORD16</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classJpegSampleValue.html#d51e8f0375dbb30b66ff3f83b4665a08">DctCoeff</a></td></tr>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="56c663648ba670a7e9dfe75326940227"></a><!-- doxytag: member="JpegSampleValue::JpegSampleValue" ref="56c663648ba670a7e9dfe75326940227" args="(int c)" -->
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<td class="memname">JpegSampleValue::JpegSampleValue </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>c</em> </td>
<td> ) </td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="3d1c422d07e9d9644080313c92a21ea0"></a><!-- doxytag: member="JpegSampleValue::calcDistance" ref="3d1c422d07e9d9644080313c92a21ea0" args="(const SampleValue *s) const " -->
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<td class="memname"><a class="el" href="common_8h.html#6b8592979b076e06aa233e3f586ac999">UWORD32</a> JpegSampleValue::calcDistance </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classSampleValue.html">SampleValue</a> * </td>
<td class="paramname"> <em>s</em> </td>
<td> ) </td>
<td> const<code> [virtual]</code></td>
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calculate the distance between the sample value s and this sample value <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>s</em> </td><td>a sample value of the same type as this </td></tr>
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<dl class="return" compact><dt><b>Returns:</b></dt><dd>the distance </dd></dl>
<p>Implements <a class="el" href="classSampleValue.html#a7e5d9b69203f6f6edf97c79319232dd">SampleValue</a>.</p>
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<a class="anchor" name="06fbe97eb12bf1b5c5ad6f995973f2d2"></a><!-- doxytag: member="JpegSampleValue::calcEValue" ref="06fbe97eb12bf1b5c5ad6f995973f2d2" args="(SWORD16 dctc)" -->
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<td class="memname">static <a class="el" href="common_8h.html#cf820202f81f25eb00734eac0d7aed2d">EmbValue</a> JpegSampleValue::calcEValue </td>
<td>(</td>
<td class="paramtype"><a class="el" href="common_8h.html#75e993730bc2fad258c1f7becd24fec9">SWORD16</a> </td>
<td class="paramname"> <em>dctc</em> </td>
<td> ) </td>
<td><code> [inline, static]</code></td>
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<a class="anchor" name="6999704b4827cd487cdd8f6a5ac3ecfd"></a><!-- doxytag: member="JpegSampleValue::getDctCoeff" ref="6999704b4827cd487cdd8f6a5ac3ecfd" args="(void) const " -->
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<td class="memname"><a class="el" href="common_8h.html#75e993730bc2fad258c1f7becd24fec9">SWORD16</a> JpegSampleValue::getDctCoeff </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"> </td>
<td> ) </td>
<td> const<code> [inline]</code></td>
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<a class="anchor" name="dab7120fa72b4672200f5556062f77b0"></a><!-- doxytag: member="JpegSampleValue::getName" ref="dab7120fa72b4672200f5556062f77b0" args="(void) const " -->
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<td class="memname">std::string JpegSampleValue::getName </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"> </td>
<td> ) </td>
<td> const<code> [virtual]</code></td>
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return a short name uniquely identifying this sample value
<p>Implements <a class="el" href="classSampleValue.html#eaf5c46ec6d023840e9773604b20d25c">SampleValue</a>.</p>
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<a class="anchor" name="d4e9adaf0f0de519ee06d6868dbd17dc"></a><!-- doxytag: member="JpegSampleValue::getNearestTargetSampleValue" ref="d4e9adaf0f0de519ee06d6868dbd17dc" args="(EmbValue t) const " -->
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<td class="memname"><a class="el" href="classSampleValue.html">SampleValue</a> * JpegSampleValue::getNearestTargetSampleValue </td>
<td>(</td>
<td class="paramtype"><a class="el" href="common_8h.html#cf820202f81f25eb00734eac0d7aed2d">EmbValue</a> </td>
<td class="paramname"> <em>t</em> </td>
<td> ) </td>
<td> const<code> [virtual]</code></td>
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get the nearest (with the least distance to this sample value) sample value whose embedded value equals the specified target <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>t</em> </td><td>the target embedded value</td></tr>
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If two or more target sample values have equal distance each of them should be returned with equal probability.<p>
The returned <a class="el" href="classSampleValue.html" title="the value of a sample in a CvrStgFile">SampleValue</a> object should be deleted by the callser.
<p>Implements <a class="el" href="classSampleValue.html#eca3fc1fd34c09d2244706b010935c2c">SampleValue</a>.</p>
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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="d51e8f0375dbb30b66ff3f83b4665a08"></a><!-- doxytag: member="JpegSampleValue::DctCoeff" ref="d51e8f0375dbb30b66ff3f83b4665a08" args="" -->
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<td class="memname"><a class="el" href="common_8h.html#75e993730bc2fad258c1f7becd24fec9">SWORD16</a> <a class="el" href="classJpegSampleValue.html#d51e8f0375dbb30b66ff3f83b4665a08">JpegSampleValue::DctCoeff</a><code> [private]</code> </td>
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<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="JpegSampleValue_8h_source.html">JpegSampleValue.h</a><li><a class="el" href="JpegSampleValue_8cc.html">JpegSampleValue.cc</a></ul>
</div>
<hr size="1"><address style="text-align: right;"><small>Generated on Mon Aug 17 10:58:32 2009 for steghide by
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