# CSJ2K.Color.ChannelDefinitionMapper.getCompSubsY

## Content

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<h1 id="CSJ2K_Color_ChannelDefinitionMapper_getCompSubsY_" data-uid="CSJ2K.Color.ChannelDefinitionMapper.getCompSubsY*">getCompSubsY Method
</h1>
<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="CSJ2K_Color_ChannelDefinitionMapper_getCompSubsY_" data-uid="CSJ2K.Color.ChannelDefinitionMapper.getCompSubsY*"></a>
<h4 id="CSJ2K_Color_ChannelDefinitionMapper_getCompSubsY_System_Int32_" data-uid="CSJ2K.Color.ChannelDefinitionMapper.getCompSubsY(System.Int32)">getCompSubsY(int)</h4>
<div class="markdown level1 summary"><p>Returns the component subsampling factor in the vertical direction, for
the specified component. This is, approximately, the ratio of
dimensions between the reference grid and the component itself, see the
'ImgData' interface desription for details.</p>
<pre><code>       &lt;p&gt;This default implementation returns the value of the source.&lt;/p&gt;
</code></pre>
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<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
<div class="codewrapper">
  <pre><code class="lang-csharp hljs">public override int getCompSubsY(int c)</code></pre>
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<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">Public Overrides Function getCompSubsY(c As Integer) As Integer</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="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><span class="parametername">c</span></td>
      <td><p>The index of the component (between 0 and N-1)</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="https://learn.microsoft.com/dotnet/api/system.int32">int</a></td>
      <td><p>The vertical subsampling factor of component 'c'</p>
</td>
    </tr>
  </tbody>
</table>
<h5 class="overrides">Overrides</h5>
<div><a class="xref" href="CSJ2K.j2k.image.ImgDataAdapter.getCompSubsY.html#CSJ2K_j2k_image_ImgDataAdapter_getCompSubsY_System_Int32_">ImgDataAdapter.getCompSubsY(int)</a></div>
<h5 id="CSJ2K_Color_ChannelDefinitionMapper_getCompSubsY_System_Int32__seealso">See Also</h5>
<div class="seealso">
    <div><a class="xref" href="CSJ2K.j2k.image.ImgData.html">ImgData</a></div>
</div>
</div>