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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Leptonica: src/binexpand.c File Reference</title>
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<div id="projectname">Leptonica <span id="projectnumber">1.68</span></div>
<div id="projectbrief">C Image Processing Library</div>
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<h1>binexpand.c File Reference</h1> </div>
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<p>Integer upscaling of 1 bpp images by replicated expansion.
<a href="#_details">More...</a></p>
<div class="textblock"><code>#include <stdio.h></code><br/>
<code>#include <string.h></code><br/>
<code>#include <stdlib.h></code><br/>
<code>#include "<a class="el" href="allheaders_8h_source.html">allheaders.h</a>"</code><br/>
</div>
<p><a href="binexpand_8c_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="func-members"></a>
Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="struct_pix.html">PIX</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="binexpand_8c.html#ae6f4a9202647863c153f7ef19c216124">pixExpandBinaryReplicate</a> (<a class="el" href="struct_pix.html">PIX</a> *pixs, <a class="el" href="environ_8h.html#a9085c7874153c280a4171244aa052e4e">l_int32</a> factor)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="struct_pix.html">PIX</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="binexpand_8c.html#ad599ff281ba9ef9c94387a428170f870">pixExpandBinaryPower2</a> (<a class="el" href="struct_pix.html">PIX</a> *pixs, <a class="el" href="environ_8h.html#a9085c7874153c280a4171244aa052e4e">l_int32</a> factor)</td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>Integer upscaling of 1 bpp images by replicated expansion. </p>
<div class="fragment"><pre class="fragment"> Replicated expansion (integer scaling)
<a class="code" href="struct_pix.html">PIX</a> *<a class="code" href="binexpand_8c.html#ae6f4a9202647863c153f7ef19c216124">pixExpandBinaryReplicate</a>()
Special case: power of 2 replicated expansion
<a class="code" href="struct_pix.html">PIX</a> *<a class="code" href="binexpand_8c.html#ad599ff281ba9ef9c94387a428170f870">pixExpandBinaryPower2</a>()
</pre></div>
<p>Definition in file <a class="el" href="binexpand_8c_source.html">binexpand.c</a>.</p>
</div><hr/><h2>Function Documentation</h2>
<a class="anchor" id="ae6f4a9202647863c153f7ef19c216124"></a><!-- doxytag: member="binexpand.c::pixExpandBinaryReplicate" ref="ae6f4a9202647863c153f7ef19c216124" args="(PIX *pixs, l_int32 factor)" -->
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<td class="memname"><a class="el" href="struct_pix.html">PIX</a>* pixExpandBinaryReplicate </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_pix.html">PIX</a> * </td>
<td class="paramname"><em>pixs</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="environ_8h.html#a9085c7874153c280a4171244aa052e4e">l_int32</a> </td>
<td class="paramname"><em>factor</em> </td>
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<td>)</td>
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<p><a class="el" href="binexpand_8c.html#ae6f4a9202647863c153f7ef19c216124">pixExpandBinaryReplicate()</a></p>
<p>Input: pixs (1 bpp) factor (integer scale factor for replicative expansion) Return: pixd (scaled up), or null on error </p>
<p>Definition at line <a class="el" href="binexpand_8c_source.html#l00043">43</a> of file <a class="el" href="binexpand_8c_source.html">binexpand.c</a>.</p>
<p>References <a class="el" href="environ_8h_source.html#l00250">ERROR_PTR</a>, <a class="el" href="arrayaccess_8h_source.html#l00060">GET_DATA_BIT</a>, <a class="el" href="environ_8h_source.html#l00171">NULL</a>, <a class="el" href="pix1_8c_source.html#l00548">pixCopy()</a>, <a class="el" href="pix1_8c_source.html#l01114">pixCopyResolution()</a>, <a class="el" href="pix1_8c_source.html#l00269">pixCreate()</a>, <a class="el" href="binexpand_8c_source.html#l00105">pixExpandBinaryPower2()</a>, <a class="el" href="pix1_8c_source.html#l01358">pixGetData()</a>, <a class="el" href="pix1_8c_source.html#l00898">pixGetDimensions()</a>, <a class="el" href="pix1_8c_source.html#l00970">pixGetWpl()</a>, <a class="el" href="pix1_8c_source.html#l01133">pixScaleResolution()</a>, <a class="el" href="environ_8h_source.html#l00249">PROCNAME</a>, and <a class="el" href="arrayaccess_8h_source.html#l00063">SET_DATA_BIT</a>.</p>
<p>Referenced by <a class="el" href="adaptnorm__reg_8c_source.html#l00026">main()</a>, and <a class="el" href="scale_8c_source.html#l02173">pixExpandReplicate()</a>.</p>
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<a class="anchor" id="ad599ff281ba9ef9c94387a428170f870"></a><!-- doxytag: member="binexpand.c::pixExpandBinaryPower2" ref="ad599ff281ba9ef9c94387a428170f870" args="(PIX *pixs, l_int32 factor)" -->
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<div class="memproto">
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<td class="memname"><a class="el" href="struct_pix.html">PIX</a>* pixExpandBinaryPower2 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_pix.html">PIX</a> * </td>
<td class="paramname"><em>pixs</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="environ_8h.html#a9085c7874153c280a4171244aa052e4e">l_int32</a> </td>
<td class="paramname"><em>factor</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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<div class="memdoc">
<p><a class="el" href="binexpand_8c.html#ad599ff281ba9ef9c94387a428170f870">pixExpandBinaryPower2()</a></p>
<p>Input: pixs (1 bpp) factor (expansion factor: 1, 2, 4, 8, 16) Return: pixd (expanded 1 bpp by replication), or null on error </p>
<p>Definition at line <a class="el" href="binexpand_8c_source.html#l00105">105</a> of file <a class="el" href="binexpand_8c_source.html">binexpand.c</a>.</p>
<p>References <a class="el" href="environ_8h_source.html#l00250">ERROR_PTR</a>, <a class="el" href="binexpandlow_8c_source.html#l00046">expandBinaryPower2Low()</a>, <a class="el" href="environ_8h_source.html#l00171">NULL</a>, <a class="el" href="pix1_8c_source.html#l00548">pixCopy()</a>, <a class="el" href="pix1_8c_source.html#l01114">pixCopyResolution()</a>, <a class="el" href="pix1_8c_source.html#l00269">pixCreate()</a>, <a class="el" href="pix1_8c_source.html#l01358">pixGetData()</a>, <a class="el" href="pix1_8c_source.html#l00898">pixGetDimensions()</a>, <a class="el" href="pix1_8c_source.html#l00970">pixGetWpl()</a>, <a class="el" href="pix1_8c_source.html#l01133">pixScaleResolution()</a>, and <a class="el" href="environ_8h_source.html#l00249">PROCNAME</a>.</p>
<p>Referenced by <a class="el" href="livre__pageseg_8c_source.html#l00065">DoPageSegmentation()</a>, <a class="el" href="expand__reg_8c_source.html#l00035">main()</a>, and <a class="el" href="binexpand_8c_source.html#l00043">pixExpandBinaryReplicate()</a>.</p>
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