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<a href="#func-members">Functions</a> </div>
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<div class="title">Perspective Transform Utility Functions<div class="ingroups"><a class="el" href="group__image__perspective__transforms.html">Perspective Transform</a></div></div> </div>
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<div class="contents">
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:gaf48a94fe79a1cf564b95cfd4d409833d"><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__perspective__transform__utility__functions.html#gaf48a94fe79a1cf564b95cfd4d409833d">nppiGetPerspectiveTransform</a> (<a class="el" href="struct_nppi_rect.html">NppiRect</a> oSrcROI, const double quad[4][2], double aCoeffs[3][3])</td></tr>
<tr class="memdesc:gaf48a94fe79a1cf564b95cfd4d409833d"><td class="mdescLeft"> </td><td class="mdescRight">Calculates perspective transform coefficients given source rectangular ROI and its destination quadrangle projection. <a href="#gaf48a94fe79a1cf564b95cfd4d409833d">More...</a><br/></td></tr>
<tr class="separator:gaf48a94fe79a1cf564b95cfd4d409833d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga7c0dbc4041a7b51911a28f8741d35925"><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__perspective__transform__utility__functions.html#ga7c0dbc4041a7b51911a28f8741d35925">nppiGetPerspectiveQuad</a> (<a class="el" href="struct_nppi_rect.html">NppiRect</a> oSrcROI, double quad[4][2], const double aCoeffs[3][3])</td></tr>
<tr class="memdesc:ga7c0dbc4041a7b51911a28f8741d35925"><td class="mdescLeft"> </td><td class="mdescRight">Calculates perspective transform projection of given source rectangular ROI. <a href="#ga7c0dbc4041a7b51911a28f8741d35925">More...</a><br/></td></tr>
<tr class="separator:ga7c0dbc4041a7b51911a28f8741d35925"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga3dbfb7964cab75ccbd4e9ba9e83b66fc"><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__perspective__transform__utility__functions.html#ga3dbfb7964cab75ccbd4e9ba9e83b66fc">nppiGetPerspectiveBound</a> (<a class="el" href="struct_nppi_rect.html">NppiRect</a> oSrcROI, double bound[2][2], const double aCoeffs[3][3])</td></tr>
<tr class="memdesc:ga3dbfb7964cab75ccbd4e9ba9e83b66fc"><td class="mdescLeft"> </td><td class="mdescRight">Calculates bounding box of the perspective transform projection of the given source rectangular ROI. <a href="#ga3dbfb7964cab75ccbd4e9ba9e83b66fc">More...</a><br/></td></tr>
<tr class="separator:ga3dbfb7964cab75ccbd4e9ba9e83b66fc"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="ga3dbfb7964cab75ccbd4e9ba9e83b66fc"></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> nppiGetPerspectiveBound </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_nppi_rect.html">NppiRect</a> </td>
<td class="paramname"><em>oSrcROI</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>bound</em>[2][2], </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const double </td>
<td class="paramname"><em>aCoeffs</em>[3][3] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Calculates bounding box of the perspective transform projection of the given source rectangular ROI. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">oSrcROI</td><td>Source ROI </td></tr>
<tr><td class="paramname">bound</td><td>Bounding box of the transformed source ROI </td></tr>
<tr><td class="paramname">aCoeffs</td><td>Perspective transform coefficients </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Error codes:<ul>
<li><a class="el" href="group__typedefs__npp.html#gga1105a17b5e76381583c46ecd6a60fe21a63297527390b522fa2b47a4d82f71b4b">NPP_SIZE_ERROR</a> Indicates an error condition if any image dimension has zero or negative value</li>
<li><a class="el" href="group__typedefs__npp.html#gga1105a17b5e76381583c46ecd6a60fe21aba8db23ee8afb9f272c2b21768ea7fab" title="Size of the rectangle region is less than or equal to 1. ">NPP_RECTANGLE_ERROR</a> Indicates an error condition if width or height of the intersection of the oSrcROI and source image is less than or equal to 1</li>
<li><a class="el" href="group__typedefs__npp.html#gga1105a17b5e76381583c46ecd6a60fe21a37e7b555565366e78cffd58e2d51c305" title="Unallowable values of the transformation coefficients. ">NPP_COEFFICIENT_ERROR</a> Indicates an error condition if coefficient values are invalid </li>
</ul>
</dd></dl>
</div>
</div>
<a class="anchor" id="ga7c0dbc4041a7b51911a28f8741d35925"></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> nppiGetPerspectiveQuad </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_nppi_rect.html">NppiRect</a> </td>
<td class="paramname"><em>oSrcROI</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>quad</em>[4][2], </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const double </td>
<td class="paramname"><em>aCoeffs</em>[3][3] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Calculates perspective transform projection of given source rectangular ROI. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">oSrcROI</td><td>Source ROI </td></tr>
<tr><td class="paramname">quad</td><td>Destination quadrangle </td></tr>
<tr><td class="paramname">aCoeffs</td><td>Perspective transform coefficients </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Error codes:<ul>
<li><a class="el" href="group__typedefs__npp.html#gga1105a17b5e76381583c46ecd6a60fe21a63297527390b522fa2b47a4d82f71b4b">NPP_SIZE_ERROR</a> Indicates an error condition if any image dimension has zero or negative value</li>
<li><a class="el" href="group__typedefs__npp.html#gga1105a17b5e76381583c46ecd6a60fe21aba8db23ee8afb9f272c2b21768ea7fab" title="Size of the rectangle region is less than or equal to 1. ">NPP_RECTANGLE_ERROR</a> Indicates an error condition if width or height of the intersection of the oSrcROI and source image is less than or equal to 1</li>
<li><a class="el" href="group__typedefs__npp.html#gga1105a17b5e76381583c46ecd6a60fe21a37e7b555565366e78cffd58e2d51c305" title="Unallowable values of the transformation coefficients. ">NPP_COEFFICIENT_ERROR</a> Indicates an error condition if coefficient values are invalid </li>
</ul>
</dd></dl>
</div>
</div>
<a class="anchor" id="gaf48a94fe79a1cf564b95cfd4d409833d"></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> nppiGetPerspectiveTransform </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct_nppi_rect.html">NppiRect</a> </td>
<td class="paramname"><em>oSrcROI</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const double </td>
<td class="paramname"><em>quad</em>[4][2], </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>aCoeffs</em>[3][3] </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Calculates perspective transform coefficients given source rectangular ROI and its destination quadrangle projection. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">oSrcROI</td><td>Source ROI </td></tr>
<tr><td class="paramname">quad</td><td>Destination quadrangle </td></tr>
<tr><td class="paramname">aCoeffs</td><td>Perspective transform coefficients </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Error codes:<ul>
<li><a class="el" href="group__typedefs__npp.html#gga1105a17b5e76381583c46ecd6a60fe21a63297527390b522fa2b47a4d82f71b4b">NPP_SIZE_ERROR</a> Indicates an error condition if any image dimension has zero or negative value</li>
<li><a class="el" href="group__typedefs__npp.html#gga1105a17b5e76381583c46ecd6a60fe21aba8db23ee8afb9f272c2b21768ea7fab" title="Size of the rectangle region is less than or equal to 1. ">NPP_RECTANGLE_ERROR</a> Indicates an error condition if width or height of the intersection of the oSrcROI and source image is less than or equal to 1</li>
<li><a class="el" href="group__typedefs__npp.html#gga1105a17b5e76381583c46ecd6a60fe21a37e7b555565366e78cffd58e2d51c305" title="Unallowable values of the transformation coefficients. ">NPP_COEFFICIENT_ERROR</a> Indicates an error condition if coefficient values are invalid </li>
</ul>
</dd></dl>
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