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<html>
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<title>Camstream: CamStream API documentation</title>
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<div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Class List</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Class Members</a> | <a class="qindex" href="globals.html">File Members</a></div>
<h1>CIntgPanel Class Reference</h1>Integrator, reverse of Differentatior.
<a href="#_details">More...</a>
<p>
<code>#include <<a class="el" href="_intg_panel_8h-source.html">IntgPanel.h</a>></code>
<p>
<p>Inheritance diagram for CIntgPanel:
<p><center><img src="class_c_intg_panel.png" usemap="#CIntgPanel_map" border="0" alt=""></center>
<map name="CIntgPanel_map">
<area href="class_c_cam_panel.html" alt="CCamPanel" shape="rect" coords="0,0,78,24">
</map>
<a href="class_c_intg_panel-members.html">List of all members.</a><h2>Public Member Functions</h2>
<ul>
<li><a class="el" href="class_c_intg_panel.html#a0">CIntgPanel</a> (<a class="el" href="class_c_cam_panel.html">CCamPanel</a> *yuv_panel, <a class="el" href="class_c_cam_panel.html">CCamPanel</a> *diff_panel, const char *name="intg.yuv", const char *desc="YUV Integrator")
<li>void <a class="el" href="class_c_intg_panel.html#a1">SetRefresh</a> (int n)
</ul>
<h2>Protected Slots</h2>
<ul>
<li>virtual void <a class="el" href="class_c_intg_panel.html#j0">UpdatePanel</a> ()
</ul>
<hr><a name="_details"></a><h2>Detailed Description</h2>
Integrator, reverse of Differentatior.
<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 & Destructor Documentation</h2>
<a class="anchor" name="a0" doxytag="CIntgPanel::CIntgPanel" ></a><p>
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<td class="md" nowrap valign="top"> CIntgPanel::CIntgPanel </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="class_c_cam_panel.html">CCamPanel</a> * </td>
<td class="mdname" nowrap> <em>yuv_panel</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap><a class="el" href="class_c_cam_panel.html">CCamPanel</a> * </td>
<td class="mdname" nowrap> <em>diff_panel</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>const char * </td>
<td class="mdname" nowrap> <em>name</em> = <code>"intg.yuv"</code>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>const char * </td>
<td class="mdname" nowrap> <em>desc</em> = <code>"YUV Integrator"</code></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
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</td>
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<table cellspacing=5 cellpadding=0 border=0>
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<td>
</td>
<td>
<p>
Constructor.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>yuv_panel</em> </td><td>The panel with unprocessed, 'real' YUV images. </td></tr>
<tr><td></td><td valign=top><em>diff_panel</em> </td><td>The panel with the differential images. </td></tr>
<tr><td></td><td valign=top><em>name</em> </td><td>The name of this panel; default "intg.yuv" </td></tr>
<tr><td></td><td valign=top><em>desc</em> </td><td>The description of this panel; default "YUV integrator" </td></tr>
</table>
</dl>
</td>
</tr>
</table>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="a1" doxytag="CIntgPanel::SetRefresh" ></a><p>
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<td class="md" nowrap valign="top"> void CIntgPanel::SetRefresh </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">int </td>
<td class="mdname1" valign="top" nowrap> <em>n</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
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</td>
</tr>
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<table cellspacing=5 cellpadding=0 border=0>
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<td>
</td>
<td>
<p>
Set new refresh rate.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>n</em> </td><td>New refresh rate</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 class="anchor" name="j0" doxytag="CIntgPanel::UpdatePanel" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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<td class="md" nowrap valign="top"> void CIntgPanel::UpdatePanel </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [protected, virtual, slot]</code></td>
</tr>
</table>
</td>
</tr>
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<table cellspacing=5 cellpadding=0 border=0>
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<td>
</td>
<td>
<p>
</td>
</tr>
</table>
<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="_intg_panel_8h-source.html">IntgPanel.h</a><li><a class="el" href="_intg_panel_8cc.html">IntgPanel.cc</a></ul>
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