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<html>
<head>
<title>Camstream: CamStream API documentation</title>
<link rel="stylesheet" href="../../tech.css" type="text/css">
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<body>

<!-- Generated by Doxygen 1.2.6 -->
<center>
<a class="qindex" href="index.html">Main Page</a> &nbsp; <a class="qindex" href="hierarchy.html">Class Hierarchy</a> &nbsp; <a class="qindex" href="annotated.html">Compound List</a> &nbsp; <a class="qindex" href="files.html">File List</a> &nbsp; <a class="qindex" href="functions.html">Compound Members</a> &nbsp; <a class="qindex" href="globals.html">File Members</a> &nbsp; </center>
<hr><h1>CIntgPanel  Class Reference</h1>Integrator, reverse of Differentatior. 
<a href="#_details">More...</a>
<p>
<code>#include &lt;<a class="el" href="intgpanel_h-source.html">IntgPanel.h</a>&gt;</code>
<p>
<p>Inheritance diagram for CIntgPanel::
<p><center><img src="class_cintgpanel.gif" usemap="#CIntgPanel_map" border="0"></center>
<map name="CIntgPanel_map">
<area href="class_ccampanel.html" alt="CCamPanel" shape="rect" coords="0,56,78,80">
<area href="class_qwidget.html" alt="QWidget" shape="rect" coords="0,0,78,24">
</map>
<a href="class_cintgpanel-members.html">List of all members.</a><h2>Public Methods</h2>
<ul>
<li><a class="el" href="class_cintgpanel.html#a0">CIntgPanel</a> (<a class="el" href="class_ccampanel.html">CCamPanel</a> *yuv_panel, <a class="el" href="class_ccampanel.html">CCamPanel</a> *diff_panel, const char *name="intg.yuv", const char *desc="YUV Integrator")
<li>void <a class="el" href="class_cintgpanel.html#a1">SetRefresh</a> (int n)
</ul>
<h2>Protected Slots</h2>
<ul>
<li>virtual void <a class="el" href="class_cintgpanel.html#h0">UpdatePanel</a> ()
</ul>
<hr><a name="_details"></a><h2>Detailed Description</h2>
Integrator, reverse of Differentatior.
<p>

<p>
 This class is a panel that is the reverse of a Differentiator: it's an integrator, that is, it accumulates differences to reconstruct the original image. It's name is derived from the electronic equivalent with resistors, capacitors and coils.
<p>
Because of round-off errors, DCT (de)compression, bias, etc. (aka "noise") the integration is not perfect. So every once in a while a 'real' YUV image is needed to refresh the image. 
<p>
<hr><h2>Constructor &amp; Destructor Documentation</h2>
<a name="a0" doxytag="CIntgPanel::CIntgPanel"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
  <tr>
    <td class="md">
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          <td nowrap valign="top"><b> 
CIntgPanel::CIntgPanel (
          </b></td>
          <td valign="bottom"><b>
<a class="el" href="class_ccampanel.html">CCamPanel</a> * <em>yuv_panel</em>, 
          </b></td>
        </tr>
        <tr>
          <td></td>
          <td><b>
<a class="el" href="class_ccampanel.html">CCamPanel</a> * <em>diff_panel</em>, 
          </b></td>
        </tr>
        <tr>
          <td></td>
          <td><b>
const char * <em>name</em> = "intg.yuv", 
          </b></td>
        </tr>
        <tr>
          <td></td>
          <td><b>
const char * <em>desc</em> = "YUV Integrator"&nbsp;)
          </b></td>
        </tr>

      </table>
    </td>
  </tr>
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    <td>
      &nbsp;
    </td>
    <td>

<p>
Constructor.
<p>
<dl compact><dt>
<b>Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>yuv_panel</em>
&nbsp;</td><td>
The panel with unprocessed, 'real' YUV images. </td></tr>
<tr><td valign=top><em>diff_panel</em>
&nbsp;</td><td>
The panel with the differential images. </td></tr>
<tr><td valign=top><em>name</em>
&nbsp;</td><td>
The name of this panel; default "intg.yuv" </td></tr>
<tr><td valign=top><em>desc</em>
&nbsp;</td><td>
The description of this panel; default "YUV integrator" </td></tr>
</table>
</dl>    </td>
  </tr>
</table>
<hr><h2>Member Function Documentation</h2>
<a name="a1" doxytag="CIntgPanel::SetRefresh"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
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    <td class="md">
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          <td nowrap valign="top"><b> 
void CIntgPanel::SetRefresh (
          </b></td>
          <td valign="bottom"><b>
int <em>n</em>&nbsp;)
          </b></td>
        </tr>

      </table>
    </td>
  </tr>
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<table cellspacing=5 cellpadding=0 border=0>
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    <td>
      &nbsp;
    </td>
    <td>

<p>
Set new refresh rate.
<p>
<dl compact><dt>
<b>Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>n</em>
&nbsp;</td><td>
New refresh rate
<p>
</td></tr>
</table>
</dl>Every once in a while, a fresh image is needed because using a differential and then going back with an integrator causes all kinds of errors, like round off errors, drifts, etc. Every N frames, a 'real' image will be requested instead of a diff. This function sets this refresh rate.     </td>
  </tr>
</table>
<a name="h0" doxytag="CIntgPanel::UpdatePanel"></a><p>
<table width="100%" cellpadding="2" cellspacing="0" border="0">
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    <td class="md">
      <table cellpadding="0" cellspacing="0" border="0">
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virtual void CIntgPanel::UpdatePanel (
          </b></td>
          <td valign="bottom"><b>
)<code> [protected, virtual, slot]</code>
          </b></td>
        </tr>

      </table>
    </td>
  </tr>
</table>
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    <td>
      &nbsp;
    </td>
    <td>

<p>
    </td>
  </tr>
</table>
<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="intgpanel_cc.html">IntgPanel.cc</a><li><a class="el" href="intgpanel_h-source.html">IntgPanel.h</a></ul>
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width=110 height=53></a>1.2.6 written by <a href="mailto:dimitri@stack.nl">Dimitri van Heesch</a>,
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