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<a href="#func-members">Functions</a> </div>
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<div class="title">Compare Image Difference With Constant Within Epsilon Operations<div class="ingroups"><a class="el" href="group__image__comparison__operations.html">Comparison Operations</a></div></div> </div>
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<p>Compare differences between image pixels and constant within an epsilon value and create a binary result image.
<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:gae6cfefef5a42f75e18935de0b089cfd6"><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__compare__image__difference__to__constant__with__epsilon__operations.html#gae6cfefef5a42f75e18935de0b089cfd6">nppiCompareEqualEpsC_32f_C1R_Ctx</a> (const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pSrc, int nSrcStep, const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> nConstant, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDst, int nDstStep, <a class="el" href="struct_nppi_size.html">NppiSize</a> oSizeROI, <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> nEpsilon, <a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> nppStreamCtx)</td></tr>
<tr class="memdesc:gae6cfefef5a42f75e18935de0b089cfd6"><td class="mdescLeft"> </td><td class="mdescRight">1 channel 32-bit floating point image compare whether image and constant are equal within epsilon. <a href="#gae6cfefef5a42f75e18935de0b089cfd6">More...</a><br/></td></tr>
<tr class="separator:gae6cfefef5a42f75e18935de0b089cfd6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gadeeb24bd62e72a2f8e9044fa709593f7"><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__compare__image__difference__to__constant__with__epsilon__operations.html#gadeeb24bd62e72a2f8e9044fa709593f7">nppiCompareEqualEpsC_32f_C1R</a> (const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pSrc, int nSrcStep, const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> nConstant, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDst, int nDstStep, <a class="el" href="struct_nppi_size.html">NppiSize</a> oSizeROI, <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> nEpsilon)</td></tr>
<tr class="separator:gadeeb24bd62e72a2f8e9044fa709593f7"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga23abf0f7e785ef642d07bf288ea65ba6"><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__compare__image__difference__to__constant__with__epsilon__operations.html#ga23abf0f7e785ef642d07bf288ea65ba6">nppiCompareEqualEpsC_32f_C3R_Ctx</a> (const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pSrc, int nSrcStep, const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pConstants, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDst, int nDstStep, <a class="el" href="struct_nppi_size.html">NppiSize</a> oSizeROI, <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> nEpsilon, <a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> nppStreamCtx)</td></tr>
<tr class="memdesc:ga23abf0f7e785ef642d07bf288ea65ba6"><td class="mdescLeft"> </td><td class="mdescRight">3 channel 32-bit floating point image compare whether image and constant are equal within epsilon. <a href="#ga23abf0f7e785ef642d07bf288ea65ba6">More...</a><br/></td></tr>
<tr class="separator:ga23abf0f7e785ef642d07bf288ea65ba6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga3369d0198f7fb1c92356ad29f098fb3e"><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__compare__image__difference__to__constant__with__epsilon__operations.html#ga3369d0198f7fb1c92356ad29f098fb3e">nppiCompareEqualEpsC_32f_C3R</a> (const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pSrc, int nSrcStep, const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pConstants, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDst, int nDstStep, <a class="el" href="struct_nppi_size.html">NppiSize</a> oSizeROI, <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> nEpsilon)</td></tr>
<tr class="separator:ga3369d0198f7fb1c92356ad29f098fb3e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga844eda8fe5d3a3e43d22e43aaa7259e5"><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__compare__image__difference__to__constant__with__epsilon__operations.html#ga844eda8fe5d3a3e43d22e43aaa7259e5">nppiCompareEqualEpsC_32f_C4R_Ctx</a> (const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pSrc, int nSrcStep, const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pConstants, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDst, int nDstStep, <a class="el" href="struct_nppi_size.html">NppiSize</a> oSizeROI, <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> nEpsilon, <a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> nppStreamCtx)</td></tr>
<tr class="memdesc:ga844eda8fe5d3a3e43d22e43aaa7259e5"><td class="mdescLeft"> </td><td class="mdescRight">4 channel 32-bit floating point image compare whether image and constant are equal within epsilon. <a href="#ga844eda8fe5d3a3e43d22e43aaa7259e5">More...</a><br/></td></tr>
<tr class="separator:ga844eda8fe5d3a3e43d22e43aaa7259e5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga68a58040022a15a458f034b09af4df94"><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__compare__image__difference__to__constant__with__epsilon__operations.html#ga68a58040022a15a458f034b09af4df94">nppiCompareEqualEpsC_32f_C4R</a> (const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pSrc, int nSrcStep, const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pConstants, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDst, int nDstStep, <a class="el" href="struct_nppi_size.html">NppiSize</a> oSizeROI, <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> nEpsilon)</td></tr>
<tr class="separator:ga68a58040022a15a458f034b09af4df94"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gadce7c9b2a59814d427939941066351a5"><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__compare__image__difference__to__constant__with__epsilon__operations.html#gadce7c9b2a59814d427939941066351a5">nppiCompareEqualEpsC_32f_AC4R_Ctx</a> (const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pSrc, int nSrcStep, const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pConstants, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDst, int nDstStep, <a class="el" href="struct_nppi_size.html">NppiSize</a> oSizeROI, <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> nEpsilon, <a class="el" href="struct_npp_stream_context.html">NppStreamContext</a> nppStreamCtx)</td></tr>
<tr class="memdesc:gadce7c9b2a59814d427939941066351a5"><td class="mdescLeft"> </td><td class="mdescRight">4 channel 32-bit signed floating point compare whether image and constant are equal within epsilon, not affecting Alpha. <a href="#gadce7c9b2a59814d427939941066351a5">More...</a><br/></td></tr>
<tr class="separator:gadce7c9b2a59814d427939941066351a5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga298617f507715372137d66b4a5281433"><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__compare__image__difference__to__constant__with__epsilon__operations.html#ga298617f507715372137d66b4a5281433">nppiCompareEqualEpsC_32f_AC4R</a> (const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pSrc, int nSrcStep, const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> *pConstants, <a class="el" href="group__npp__basic__types.html#ga29b502b6816fc0066fd59538483a5b62">Npp8u</a> *pDst, int nDstStep, <a class="el" href="struct_nppi_size.html">NppiSize</a> oSizeROI, <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> nEpsilon)</td></tr>
<tr class="separator:ga298617f507715372137d66b4a5281433"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>Compare differences between image pixels and constant within an epsilon value and create a binary result image. </p>
<p>In case of multi-channel image types, the condition must be fulfilled for all channels, otherwise the comparison is considered false. The "binary" result image is of type 8u_C1. False is represented by 0, true by NPP_MAX_8U.</p>
<h3><a class="anchor" id="CommonCompareImageDifferenceWithConstantWithinEpsilonParameters"></a>Common parameters for nppiCompareEqualEpsC functions include:</h3>
<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">nConstant</td><td>constant value for single channel functions. </td></tr>
<tr><td class="paramname">pConstants</td><td>pointer to a list of constants, one per color channel for multi-channel image functions. </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">nEpsilon</td><td>epsilon tolerance value to compare to per color channel pixel absolute differences </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="ga298617f507715372137d66b4a5281433"></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> nppiCompareEqualEpsC_32f_AC4R </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nSrcStep</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pConstants</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">int </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="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> </td>
<td class="paramname"><em>nEpsilon</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
</div>
</div>
<a class="anchor" id="gadce7c9b2a59814d427939941066351a5"></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> nppiCompareEqualEpsC_32f_AC4R_Ctx </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nSrcStep</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pConstants</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">int </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="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> </td>
<td class="paramname"><em>nEpsilon</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>4 channel 32-bit signed floating point compare whether image and constant are equal within epsilon, not affecting Alpha. </p>
<p>Compare pSrc's pixels with constant value to determine whether they are equal within a difference of epsilon.</p>
<p>For common parameter descriptions, see <a href="#CommonCompareImageDifferenceWithConstantWithinEpsilonParameters">Common parameters for nppiCompareEqualEpsC functions</a>. </p>
</div>
</div>
<a class="anchor" id="gadeeb24bd62e72a2f8e9044fa709593f7"></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> nppiCompareEqualEpsC_32f_C1R </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nSrcStep</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> </td>
<td class="paramname"><em>nConstant</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">int </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="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> </td>
<td class="paramname"><em>nEpsilon</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
</div>
</div>
<a class="anchor" id="gae6cfefef5a42f75e18935de0b089cfd6"></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> nppiCompareEqualEpsC_32f_C1R_Ctx </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nSrcStep</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> </td>
<td class="paramname"><em>nConstant</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">int </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="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> </td>
<td class="paramname"><em>nEpsilon</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>1 channel 32-bit floating point image compare whether image and constant are equal within epsilon. </p>
<p>Compare pSrc's pixels with constant value to determine whether they are equal within a difference of epsilon.</p>
<p>For common parameter descriptions, see <a href="#CommonCompareImageDifferenceWithConstantWithinEpsilonParameters">Common parameters for nppiCompareEqualEpsC functions</a>. </p>
</div>
</div>
<a class="anchor" id="ga3369d0198f7fb1c92356ad29f098fb3e"></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> nppiCompareEqualEpsC_32f_C3R </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nSrcStep</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pConstants</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">int </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="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> </td>
<td class="paramname"><em>nEpsilon</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
</div>
</div>
<a class="anchor" id="ga23abf0f7e785ef642d07bf288ea65ba6"></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> nppiCompareEqualEpsC_32f_C3R_Ctx </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nSrcStep</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pConstants</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">int </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="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> </td>
<td class="paramname"><em>nEpsilon</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>3 channel 32-bit floating point image compare whether image and constant are equal within epsilon. </p>
<p>Compare pSrc's pixels with constant value to determine whether they are equal within a difference of epsilon.</p>
<p>For common parameter descriptions, see <a href="#CommonCompareImageDifferenceWithConstantWithinEpsilonParameters">Common parameters for nppiCompareEqualEpsC functions</a>. </p>
</div>
</div>
<a class="anchor" id="ga68a58040022a15a458f034b09af4df94"></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> nppiCompareEqualEpsC_32f_C4R </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nSrcStep</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pConstants</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">int </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="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> </td>
<td class="paramname"><em>nEpsilon</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
</div>
</div>
<a class="anchor" id="ga844eda8fe5d3a3e43d22e43aaa7259e5"></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> nppiCompareEqualEpsC_32f_C4R_Ctx </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nSrcStep</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> * </td>
<td class="paramname"><em>pConstants</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">int </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="group__npp__basic__types.html#ga274ed0e3c4cbc89f644143f64e2391ee">Npp32f</a> </td>
<td class="paramname"><em>nEpsilon</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>4 channel 32-bit floating point image compare whether image and constant are equal within epsilon. </p>
<p>Compare pSrc's pixels with constant value to determine whether they are equal within a difference of epsilon.</p>
<p>For common parameter descriptions, see <a href="#CommonCompareImageDifferenceWithConstantWithinEpsilonParameters">Common parameters for nppiCompareEqualEpsC functions</a>. </p>
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