# CSJ2K.j2k.codestream.writer.HeaderEncoder.writeTileQCD

## Content

<div class="doc-site-dotnet-api-container">



<h1 id="CSJ2K_j2k_codestream_writer_HeaderEncoder_writeTileQCD_" data-uid="CSJ2K.j2k.codestream.writer.HeaderEncoder.writeTileQCD*">writeTileQCD Method
</h1>
<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="CSJ2K_j2k_codestream_writer_HeaderEncoder_writeTileQCD_" data-uid="CSJ2K.j2k.codestream.writer.HeaderEncoder.writeTileQCD*"></a>
<h4 id="CSJ2K_j2k_codestream_writer_HeaderEncoder_writeTileQCD_System_Int32_" data-uid="CSJ2K.j2k.codestream.writer.HeaderEncoder.writeTileQCD(System.Int32)">writeTileQCD(int)</h4>
<div class="markdown level1 summary"><p>Writes QCD marker segment in tile header. QCD is a functional marker
segment countaining the quantization default used for compressing all
the components in an image. The values can be overriden for an
individual component by a QCC marker in either the main or the tile
header.</p>
</div>
<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
<div class="codewrapper">
  <pre><code class="lang-csharp hljs">protected virtual void writeTileQCD(int tIdx)</code></pre>
</div>
<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">Protected Overridable Sub writeTileQCD(tIdx As Integer)</code></pre>
</div>
<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">tIdx</span></td>
      <td><p>Tile index</p>
</td>
    </tr>
  </tbody>
</table>
</div>