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A Framework in C# for Fingerprint Verification

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2 Jan 2019CPOL11 min read 1.6M   143.6K   672  
In this article, we introduce a framework in C# for fingerprint verification, we briefly explain how to perform fingerprint verification experiments and how to integrate your algorithms to the framework.
 
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<div class="header">
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<a href="#pub-methods">Public Member Functions</a> &#124;
<a href="#pub-static-methods">Static Public Member Functions</a> &#124;
<a href="#properties">Properties</a>  </div>
  <div class="headertitle">
<div class="title">PatternRecognition.FingerprintRecognition.Core.Minutia Class Reference</div>  </div>
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<p>Represents a minutia.  
 <a href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html#details">More...</a></p>

<p><a href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a9fbd2852a0d14c987a1588d34749bf42"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html#a9fbd2852a0d14c987a1588d34749bf42">Minutia</a> (Int16 x, Int16 y, double angle)</td></tr>
<tr class="memdesc:a9fbd2852a0d14c987a1588d34749bf42"><td class="mdescLeft">&#160;</td><td class="mdescRight">Initializes a new instance of the <a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html" title="Represents a minutia.">Minutia</a> class using the specified location and angle.  <a href="#a9fbd2852a0d14c987a1588d34749bf42"></a><br/></td></tr>
<tr class="memitem:a6440f6f1d8e552a0c69d7c071ad47a34"><td class="memItemLeft" align="right" valign="top">override int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html#a6440f6f1d8e552a0c69d7c071ad47a34">GetHashCode</a> ()</td></tr>
<tr class="memdesc:a6440f6f1d8e552a0c69d7c071ad47a34"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns a hash code for the current minutia.  <a href="#a6440f6f1d8e552a0c69d7c071ad47a34"></a><br/></td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:a14d75d06545dd8e557f050946052fc54"><td class="memItemLeft" align="right" valign="top">static bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html#a14d75d06545dd8e557f050946052fc54">operator==</a> (<a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html">Minutia</a> m1, <a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html">Minutia</a> m2)</td></tr>
<tr class="memdesc:a14d75d06545dd8e557f050946052fc54"><td class="mdescLeft">&#160;</td><td class="mdescRight">Determines whether two specified minutiae have the same property values.  <a href="#a14d75d06545dd8e557f050946052fc54"></a><br/></td></tr>
<tr class="memitem:a4b17a35e428fdf8034ec9eb731c5bf02"><td class="memItemLeft" align="right" valign="top">static bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html#a4b17a35e428fdf8034ec9eb731c5bf02">operator!=</a> (<a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html">Minutia</a> m1, <a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html">Minutia</a> m2)</td></tr>
<tr class="memdesc:a4b17a35e428fdf8034ec9eb731c5bf02"><td class="mdescLeft">&#160;</td><td class="mdescRight">Determines whether two specified minutiae have different property values.  <a href="#a4b17a35e428fdf8034ec9eb731c5bf02"></a><br/></td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2><a name="properties"></a>
Properties</h2></td></tr>
<tr class="memitem:a0c8bdca5256958838986c47a1c6630f9"><td class="memItemLeft" align="right" valign="top">Int16&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html#a0c8bdca5256958838986c47a1c6630f9">X</a><code> [get, set]</code></td></tr>
<tr class="memdesc:a0c8bdca5256958838986c47a1c6630f9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets or sets the horizontal position of the minutia.  <a href="#a0c8bdca5256958838986c47a1c6630f9"></a><br/></td></tr>
<tr class="memitem:a2d9934e52a6e0106b519b46ef07b46bf"><td class="memItemLeft" align="right" valign="top">Int16&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html#a2d9934e52a6e0106b519b46ef07b46bf">Y</a><code> [get, set]</code></td></tr>
<tr class="memdesc:a2d9934e52a6e0106b519b46ef07b46bf"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets or sets the vertical position of the minutia.  <a href="#a2d9934e52a6e0106b519b46ef07b46bf"></a><br/></td></tr>
<tr class="memitem:a8b8dba2de0b6f57beae29ec105576676"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html#a8b8dba2de0b6f57beae29ec105576676">Angle</a><code> [get, set]</code></td></tr>
<tr class="memdesc:a8b8dba2de0b6f57beae29ec105576676"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets or sets the angle of the minutia in radians.  <a href="#a8b8dba2de0b6f57beae29ec105576676"></a><br/></td></tr>
<tr class="memitem:ae1f7d377f35dbb5190800ae72993a89c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespace_pattern_recognition_1_1_fingerprint_recognition_1_1_core.html#a17740064fa94de0b99c95ea2998f2683">MinutiaType</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html#ae1f7d377f35dbb5190800ae72993a89c">MinutiaType</a><code> [get, set]</code></td></tr>
<tr class="memdesc:ae1f7d377f35dbb5190800ae72993a89c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets or sets the minutia type.  <a href="#ae1f7d377f35dbb5190800ae72993a89c"></a><br/></td></tr>
<tr class="memitem:a247d71e1dc34f3c2b1773f274ad73ddd"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html#a247d71e1dc34f3c2b1773f274ad73ddd">Flag</a><code> [get, set]</code></td></tr>
<tr class="memdesc:a247d71e1dc34f3c2b1773f274ad73ddd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Allows flagging the minutia;.  <a href="#a247d71e1dc34f3c2b1773f274ad73ddd"></a><br/></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>Represents a minutia. </p>
<p>This minutia representation assumes that the angle is represented in radians. </p>
<p>The hash code of these objects uses four bytes per minutia: <a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html#a0c8bdca5256958838986c47a1c6630f9" title="Gets or sets the horizontal position of the minutia.">Minutia.X</a> in the left most 11 bits; <a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html#a2d9934e52a6e0106b519b46ef07b46bf" title="Gets or sets the vertical position of the minutia.">Minutia.Y</a> in the next 11 bits; <a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html#a8b8dba2de0b6f57beae29ec105576676" title="Gets or sets the angle of the minutia in radians.">Minutia.Angle</a> in the next eight bits; and <a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html#ae1f7d377f35dbb5190800ae72993a89c" title="Gets or sets the minutia type.">Minutia.MinutiaType</a> in the last two bits. Therefore, this method is ineffective for values of <a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html#a0c8bdca5256958838986c47a1c6630f9" title="Gets or sets the horizontal position of the minutia.">Minutia.X</a> or <a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html#a2d9934e52a6e0106b519b46ef07b46bf" title="Gets or sets the vertical position of the minutia.">Minutia.Y</a> greater than 2047. </p>
</div><hr/><h2>Constructor &amp; Destructor Documentation</h2>
<a class="anchor" id="a9fbd2852a0d14c987a1588d34749bf42"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">PatternRecognition.FingerprintRecognition.Core.Minutia.Minutia </td>
          <td>(</td>
          <td class="paramtype">Int16&#160;</td>
          <td class="paramname"><em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">Int16&#160;</td>
          <td class="paramname"><em>y</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>angle</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Initializes a new instance of the <a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html" title="Represents a minutia.">Minutia</a> class using the specified location and angle. </p>
<pre class="fragment">The default value of &lt;see cref="MinutiaType"/&gt; is &lt;see cref="Core.MinutiaType.Unknown"/&gt;.
</pre><dl class="params"><dt>Parameters:</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>The horizontal position of the minutia. </td></tr>
    <tr><td class="paramname">y</td><td>The vertical position of the minutia. </td></tr>
    <tr><td class="paramname">angle</td><td>The angle of the minutia. </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a6440f6f1d8e552a0c69d7c071ad47a34"></a>
<div class="memitem">
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      <table class="memname">
        <tr>
          <td class="memname">override int PatternRecognition.FingerprintRecognition.Core.Minutia.GetHashCode </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Returns a hash code for the current minutia. </p>
<pre class="fragment">When building hash code, this method stores value X in the left most 11 bits; value Y, in the next 11 bits; value Angle, in the next 8 bits; and value MinutiaType, in the last 2 bits. Therefore, this method could be ineffective for values of X or Y greater than 2047.
</pre><dl class="section return"><dt>Returns:</dt><dd>A hash code for the current minutia. </dd></dl>

</div>
</div>
<a class="anchor" id="a4b17a35e428fdf8034ec9eb731c5bf02"></a>
<div class="memitem">
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  <td class="mlabels-left">
      <table class="memname">
        <tr>
          <td class="memname">static bool PatternRecognition.FingerprintRecognition.Core.Minutia.operator!= </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html">Minutia</a>&#160;</td>
          <td class="paramname"><em>m1</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html">Minutia</a>&#160;</td>
          <td class="paramname"><em>m2</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">static</span></span>  </td>
  </tr>
</table>
</div><div class="memdoc">

<p>Determines whether two specified minutiae have different property values. </p>
<dl class="params"><dt>Parameters:</dt><dd>
  <table class="params">
    <tr><td class="paramname">m1</td><td>A minutia.</td></tr>
    <tr><td class="paramname">m2</td><td>A minutia.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns:</dt><dd>True if every property value of <em>m1</em>  is different from the respective property value of <em>m2</em> ; otherwise, false. </dd></dl>

</div>
</div>
<a class="anchor" id="a14d75d06545dd8e557f050946052fc54"></a>
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  <td class="mlabels-left">
      <table class="memname">
        <tr>
          <td class="memname">static bool PatternRecognition.FingerprintRecognition.Core.Minutia.operator== </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html">Minutia</a>&#160;</td>
          <td class="paramname"><em>m1</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia.html">Minutia</a>&#160;</td>
          <td class="paramname"><em>m2</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">static</span></span>  </td>
  </tr>
</table>
</div><div class="memdoc">

<p>Determines whether two specified minutiae have the same property values. </p>
<dl class="params"><dt>Parameters:</dt><dd>
  <table class="params">
    <tr><td class="paramname">m1</td><td>A minutia.</td></tr>
    <tr><td class="paramname">m2</td><td>A minutia.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns:</dt><dd>True if every property value of <em>m1</em>  is equal to the respective property value of <em>m2</em> ; otherwise, false. </dd></dl>

</div>
</div>
<hr/><h2>Property Documentation</h2>
<a class="anchor" id="a8b8dba2de0b6f57beae29ec105576676"></a>
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      <table class="memname">
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          <td class="memname">double PatternRecognition.FingerprintRecognition.Core.Minutia.Angle</td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">get</span><span class="mlabel">set</span></span>  </td>
  </tr>
</table>
</div><div class="memdoc">

<p>Gets or sets the angle of the minutia in radians. </p>

</div>
</div>
<a class="anchor" id="a247d71e1dc34f3c2b1773f274ad73ddd"></a>
<div class="memitem">
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  <td class="mlabels-left">
      <table class="memname">
        <tr>
          <td class="memname">bool PatternRecognition.FingerprintRecognition.Core.Minutia.Flag</td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">get</span><span class="mlabel">set</span></span>  </td>
  </tr>
</table>
</div><div class="memdoc">

<p>Allows flagging the minutia;. </p>

</div>
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          <td class="memname"><a class="el" href="namespace_pattern_recognition_1_1_fingerprint_recognition_1_1_core.html#a17740064fa94de0b99c95ea2998f2683">MinutiaType</a> PatternRecognition.FingerprintRecognition.Core.Minutia.MinutiaType</td>
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<p>Gets or sets the minutia type. </p>

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<p>Gets or sets the horizontal position of the minutia. </p>

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<p>Gets or sets the vertical position of the minutia. </p>

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<hr/>The documentation for this class was generated from the following file:<ul>
<li>D:/Migue/Code/FingerprintRecognition/CodeProject/[2012-05-16] FingerprintRecognition/FingerprintRecognition/FR.Core/Minutia.cs</li>
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Written By
Miguel Angel Medina-Pérez
Tecnológico de Monterrey
Mexico Mexico
I received my B.S. and M.S. degrees from the University of Ciego de Ávila, Cuba, in 2007 and I received my PhD. degree in 2014 from the National Institute of Astrophysics, Optics and Electronics (INAOE), Mexico.

I have developed software to solve pattern recognition problems. A successful example is the algorithm DMC which is the most accurate (according to EER) among those which compare both fingerprints and palmprints in the international competition FVC-onGoing.

I have been involved in several research projects about pattern recognition and I have published tens of papers in referenced journals such as "Pattern Recognition," "Knowledge-Based Systems," "Information Sciences", and "IEEE Transactions on Information Forensics and Security."

Written By
Milton García Borroto
Cuba Cuba
Milton García-Borroto is graduated from Las Villas Central University, Cuba, in 2000. He received the M.S. degree in 2007 from the National Institute of Astrophisics, Optics and Electronics, Mexico, where he continues his studies toward a Ph.D. degree. His research interests are pattern recognition and biometry.

Relevant papers:
1. M. García-Borroto, J. F. Martinez Trinidad, J. A. Carrasco Ochoa, M. A. Medina-Pérez, and J. Ruiz-Shulcloper. LCMine: An efficient algorithm for mining discriminative regularities and its application in supervised classification. Pattern Recognition vol. 43, pp. 3025-3034, 2010.
2. M. García-Borroto, J. F. Martinez Trinidad, J. A. Carrasco Ochoa. A New Emerging Pattern Mining Algorithm and Its Application in Supervised Classification. M.J. Zaki et al. (Eds.): PAKDD 2010, Part I, Lecture Notes in Artificial Intelligence, vol. 6118, pp. 150–157, 2010.
3. M. A. Medina-Pérez, A. Gutiérrez-Rodríguez, and M. García-Borroto, "Improving Fingerprint Matching Using an Orientation-Based Minutia Descriptor," Lecture Notes in Computer Science, vol. 5856, pp. 121-128, 2009.
4. M. García-Borroto, Y. Villuendas-Rey, J. A. Carrasco-Ochoa, and J. F. Martínez-Trinidad, "Finding Small Consistent Subset for the Nearest Neighbor Classifier Based on Support Graphs," Lecture Notes in Computer Science, vol. 5856, pp. 465-472, 2009.
5. M. García-Borroto, Y. Villuendas-Rey, J. A. Carrasco-Ochoa, and J. F. Martínez-Trinidad, "Using Maximum Similarity Graphs to Edit Nearest Neighbor Classifiers," Lecture Notes in Computer Science, vol. 5856, pp. 489-496, 2009.
6. M. A. Medina-Pérez, M. García-Borroto, and J. Ruiz-Shulcloper, "Object Selection Based on Subclass Error Correcting for ALVOT," Lecture Notes in Computer Science, vol. 4756, pp. 496-505, 2007.

Andres Eduardo Gutierrez Rodriguez is graduated from Las Villas Central University, Cuba, in 2006. He received the M.S. degree in 2009 from the University of Ciego de Ávila, Cuba. His research interests are pattern recognition and biometry.

Relevant papers:

-M. A. Medina-Pérez, A. Gutiérrez-Rodríguez, and M. García-Borroto, "Improving Fingerprint Matching Using an Orientation-Based Minutia Descriptor," Lecture Notes in Computer Science, vol. 5856, pp. 121-128, 2009.
-A. E. Gutierrez-Rodriguez, M. A. Medina-Perez, J. F. Martinez-Trinidad, J. A. Carrasco-Ochoa, and M. Garcia-Borroto, "New Dissimilarity Measures for Ultraviolet Spectra Identification," Lecture Notes in Computer Science, vol. 6256, pp. 220-229, 2010.

Written By
Octavio Loyola-González
Program Manager
Spain Spain
Octavio Loyola-González received his PhD degree in Computer Science from the National Institute for Astrophysics, Optics, and Electronics, Mexico. He has won several awards from different institutions due to his research work on applied projects; consequently, he is a Member of the National System of Researchers in Mexico (Rank1). He worked as a distinguished professor and researcher at Tecnologico de Monterrey, Campus Puebla, for undergraduate and graduate programs of Computer Sciences. Currently, he is responsible for running Machine Learning & Artificial Intelligence practice inside Stratesys., where he is involved in the development and implementation using analytics and data mining. He has outstanding experience in the fields of big data & pattern recognition, cloud computing, IoT, and analytical tools to apply them in sectors where he has worked for as Banking & Insurance, Retail, Oil&Gas, Agriculture, Cybersecurity, Biotechnology, and Dactyloscopy. From these applied projects, Dr. Loyola-González has published several books and papers in well-known journals, and he has several ongoing patents as manager and researcher in Stratesys.

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Posted 30 Jul 2010

Article Copyright 2010 by Miguel Angel Medina-Pérez, Milton García Borroto, Andres Eduardo Gutierrez Rodriguez, Octavio Loyola-González
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