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<title>NVIDIA 2D Image And Signal Performance Primitives (NPP): FilterThresholdAdaptiveBoxBorder</title>
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<div id="projectname">NVIDIA 2D Image And Signal Performance Primitives (NPP)
 <span id="projectnumber">Version 10.1.1</span>
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<div class="header">
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<a href="#func-members">Functions</a> </div>
<div class="headertitle">
<div class="title">FilterThresholdAdaptiveBoxBorder<div class="ingroups"><a class="el" href="group__image__2_d__fixed__linear__filters.html">2D Fixed Linear Filters</a></div></div> </div>
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<div class="contents">
<p>Computes the average pixel values of the pixels under a square mask with border control.
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ga412afc9fec4407579a600f96426c48ac"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__image__filter__threshold__adaptive__box__border.html#ga412afc9fec4407579a600f96426c48ac">nppiFilterThresholdAdaptiveBoxBorder_8u_C1R_Ctx</a> (const <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pSrc, <a class="el" href="group__npp__basic__types.html#gafa3572058d57d93e2e5ebb9b21fbedb3">Npp32s</a> nSrcStep, <a class="el" href="struct_nppi_size.html">NppiSize</a> oSrcSize, <a class="el" href="struct_nppi_point.html">NppiPoint</a> oSrcOffset, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDst, <a class="el" href="group__npp__basic__types.html#gafa3572058d57d93e2e5ebb9b21fbedb3">Npp32s</a> nDstStep, <a class="el" href="struct_nppi_size.html">NppiSize</a> oSizeROI, <a class="el" href="struct_nppi_size.html">NppiSize</a> oMaskSize, <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> nDelta, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> nValGT, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> nValLE, <a class="el" href="group__typedefs__npp.html#ga7e1448936057e7401acf293d19278317">NppiBorderType</a> eBorderType, <a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> nppStreamCtx)</td></tr>
<tr class="memdesc:ga412afc9fec4407579a600f96426c48ac"><td class="mdescLeft"> </td><td class="mdescRight">Single channel 8-bit unsigned threshold adaptive box filter with border control. <a href="#ga412afc9fec4407579a600f96426c48ac">More...</a><br/></td></tr>
<tr class="separator:ga412afc9fec4407579a600f96426c48ac"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga348e9a08917a59200c17c30a51ddfd04"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__image__filter__threshold__adaptive__box__border.html#ga348e9a08917a59200c17c30a51ddfd04">nppiFilterThresholdAdaptiveBoxBorder_8u_C1R</a> (const <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pSrc, <a class="el" href="group__npp__basic__types.html#gafa3572058d57d93e2e5ebb9b21fbedb3">Npp32s</a> nSrcStep, <a class="el" href="struct_nppi_size.html">NppiSize</a> oSrcSize, <a class="el" href="struct_nppi_point.html">NppiPoint</a> oSrcOffset, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDst, <a class="el" href="group__npp__basic__types.html#gafa3572058d57d93e2e5ebb9b21fbedb3">Npp32s</a> nDstStep, <a class="el" href="struct_nppi_size.html">NppiSize</a> oSizeROI, <a class="el" href="struct_nppi_size.html">NppiSize</a> oMaskSize, <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> nDelta, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> nValGT, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> nValLE, <a class="el" href="group__typedefs__npp.html#ga7e1448936057e7401acf293d19278317">NppiBorderType</a> eBorderType)</td></tr>
<tr class="separator:ga348e9a08917a59200c17c30a51ddfd04"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>Computes the average pixel values of the pixels under a square mask with border control. </p>
<p>If any portion of the mask overlaps the source image boundary the requested border type operation is applied to all mask pixels which fall outside of the source image. Once the neighborhood average around a source pixel is determined the souce pixel is compared to the average - nDelta and if the source pixel is greater than that average the corresponding destination pixel is set to nValGT, otherwise nValLE.</p>
<p>Currently only the NPP_BORDER_REPLICATE border type operation is supported.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pSrc</td><td><a class="el" href="nppi_conventions_lb.html#source_image_pointer">Source-Image Pointer</a>. </td></tr>
<tr><td class="paramname">nSrcStep</td><td><a class="el" href="nppi_conventions_lb.html#source_image_line_step">Source-Image Line Step</a>. </td></tr>
<tr><td class="paramname">oSrcSize</td><td>Source image width and height in pixels relative to pSrc. </td></tr>
<tr><td class="paramname">oSrcOffset</td><td>The pixel offset that pSrc points to relative to the origin of the source image. </td></tr>
<tr><td class="paramname">pDst</td><td><a class="el" href="nppi_conventions_lb.html#destination_image_pointer">Destination-Image Pointer</a>. </td></tr>
<tr><td class="paramname">nDstStep</td><td><a class="el" href="nppi_conventions_lb.html#destination_image_line_step">Destination-Image Line Step</a>. </td></tr>
<tr><td class="paramname">oSizeROI</td><td><a class="el" href="nppi_conventions_lb.html#roi_specification">Region-of-Interest (ROI)</a>. </td></tr>
<tr><td class="paramname">oMaskSize</td><td>Width and Height of the neighborhood region for the local Avg operation, Width and Height must be equal and odd. </td></tr>
<tr><td class="paramname">nDelta</td><td>Neighborhood average adjustment value </td></tr>
<tr><td class="paramname">nValGT</td><td>Destination output value if source pixel is greater than average. </td></tr>
<tr><td class="paramname">nValLE</td><td>Destination output value if source pixel is less than or equal to average. </td></tr>
<tr><td class="paramname">eBorderType</td><td>The border type operation to be applied at source image border boundaries. </td></tr>
<tr><td class="paramname">nppStreamCtx</td><td><a class="el" href="index.html#application_managed_stream_context">Application Managed Stream Context</a>. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="nppi_conventions_lb.html#image_data_error_codes">Image Data Related Error Codes</a>, <a class="el" href="nppi_conventions_lb.html#roi_error_codes">ROI Related Error Codes</a> </dd></dl>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="ga348e9a08917a59200c17c30a51ddfd04"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppiFilterThresholdAdaptiveBoxBorder_8u_C1R </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#gafa3572058d57d93e2e5ebb9b21fbedb3">Npp32s</a> </td>
<td class="paramname"><em>nSrcStep</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_nppi_size.html">NppiSize</a> </td>
<td class="paramname"><em>oSrcSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_nppi_point.html">NppiPoint</a> </td>
<td class="paramname"><em>oSrcOffset</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> * </td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#gafa3572058d57d93e2e5ebb9b21fbedb3">Npp32s</a> </td>
<td class="paramname"><em>nDstStep</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_nppi_size.html">NppiSize</a> </td>
<td class="paramname"><em>oSizeROI</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_nppi_size.html">NppiSize</a> </td>
<td class="paramname"><em>oMaskSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> </td>
<td class="paramname"><em>nDelta</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> </td>
<td class="paramname"><em>nValGT</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> </td>
<td class="paramname"><em>nValLE</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__typedefs__npp.html#ga7e1448936057e7401acf293d19278317">NppiBorderType</a> </td>
<td class="paramname"><em>eBorderType</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
</div>
</div>
<a class="anchor" id="ga412afc9fec4407579a600f96426c48ac"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="group__typedefs__npp.html#ga1105a17b5e76381583c46ecd6a60fe21">NppStatus</a> nppiFilterThresholdAdaptiveBoxBorder_8u_C1R_Ctx </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#gafa3572058d57d93e2e5ebb9b21fbedb3">Npp32s</a> </td>
<td class="paramname"><em>nSrcStep</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_nppi_size.html">NppiSize</a> </td>
<td class="paramname"><em>oSrcSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_nppi_point.html">NppiPoint</a> </td>
<td class="paramname"><em>oSrcOffset</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> * </td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#gafa3572058d57d93e2e5ebb9b21fbedb3">Npp32s</a> </td>
<td class="paramname"><em>nDstStep</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_nppi_size.html">NppiSize</a> </td>
<td class="paramname"><em>oSizeROI</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_nppi_size.html">NppiSize</a> </td>
<td class="paramname"><em>oMaskSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> </td>
<td class="paramname"><em>nDelta</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> </td>
<td class="paramname"><em>nValGT</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> </td>
<td class="paramname"><em>nValLE</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__typedefs__npp.html#ga7e1448936057e7401acf293d19278317">NppiBorderType</a> </td>
<td class="paramname"><em>eBorderType</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> </td>
<td class="paramname"><em>nppStreamCtx</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Single channel 8-bit unsigned threshold adaptive box filter with border control. </p>
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