# CSJ2K.j2k.roi.encoder.ROIScaler.createInstance

## Content

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<h1 id="CSJ2K_j2k_roi_encoder_ROIScaler_createInstance_" data-uid="CSJ2K.j2k.roi.encoder.ROIScaler.createInstance*">createInstance Method
</h1>
<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="CSJ2K_j2k_roi_encoder_ROIScaler_createInstance_" data-uid="CSJ2K.j2k.roi.encoder.ROIScaler.createInstance*"></a>
<h4 id="CSJ2K_j2k_roi_encoder_ROIScaler_createInstance_CSJ2K_j2k_quantization_quantizer_Quantizer_CSJ2K_j2k_util_ParameterList_CSJ2K_j2k_encoder_EncoderSpecs_" data-uid="CSJ2K.j2k.roi.encoder.ROIScaler.createInstance(CSJ2K.j2k.quantization.quantizer.Quantizer,CSJ2K.j2k.util.ParameterList,CSJ2K.j2k.encoder.EncoderSpecs)">createInstance(Quantizer, ParameterList, EncoderSpecs)</h4>
<div class="markdown level1 summary"><p>Creates a ROIScaler object. The Quantizer is the source of data to
scale.</p>
<pre><code>       &lt;p&gt;The ROI Scaler creates a ROIMaskGenerator depending on what ROI
       information is in the ParameterList. If only rectangular ROI are used,
       the fast mask generator for rectangular ROI can be used.&lt;/p&gt;
</code></pre>
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<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">public static ROIScaler createInstance(Quantizer src, ParameterList pl, EncoderSpecs encSpec)</code></pre>
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<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">Public Shared Function createInstance(src As Quantizer, pl As ParameterList, encSpec As EncoderSpecs) As ROIScaler</code></pre>
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<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="CSJ2K.j2k.quantization.quantizer.Quantizer.html">Quantizer</a></td>
      <td><span class="parametername">src</span></td>
      <td><p>The source of data to scale</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="CSJ2K.j2k.util.ParameterList.html">ParameterList</a></td>
      <td><span class="parametername">pl</span></td>
      <td><p>The parameter list (or options).</p>
</td>
    </tr>
    <tr>
      <td><a class="xref" href="CSJ2K.j2k.encoder.EncoderSpecs.html">EncoderSpecs</a></td>
      <td><span class="parametername">encSpec</span></td>
      <td><p>The encoder specifications for addition of roi specs</p>
</td>
    </tr>
  </tbody>
</table>
<h5 class="returns">Returns</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="CSJ2K.j2k.roi.encoder.ROIScaler.html">ROIScaler</a></td>
      <td></td>
    </tr>
  </tbody>
</table>
</div>