https://community.intel.com/t5/Intel-Integrated-Performance/Using-ippiAlphaComp-16u-AC1R/m-p/1170111#M26901 <P>I am trying to use&nbsp;ippiAlphaComp_16u_AC1R for alpha composition with a grey scale image with an alpha channel</P> <P>What is the format of&nbsp;pSrc1,pSrc2 and&nbsp;pDst buffers?</P> <P>These are&nbsp;<SPAN style="font-size: 13.008px;">&nbsp;Ipp16u</SPAN> buffers - but is the format of these buffers &lt;image data pixel 0&gt;&lt;alpha data pixel 0&gt;,&lt;image data pixel 1&gt;&lt;alpha data pixel 1&gt;etc&nbsp; in consecutive&nbsp;Ipp16u values?</P> <P>If so shouldn't the the name of the function&nbsp;<SPAN style="font-size: 13.008px;">&nbsp;be&nbsp;</SPAN><SPAN style="font-size: 13.008px;">ippiAlphaComp_16u_AC2R????</SPAN></P> <P>(Isn't&nbsp;<SPAN style="font-size: 13.008px;">&nbsp;</SPAN><SPAN style="font-size: 13.008px;">AC4R format &lt;R pixel 0&gt;&lt;G pixel 0&gt;&lt;B pixel 0&gt;&lt;alpha pixel 0&gt;.&lt;R pixel 1&gt;,&lt;G pixel 1&gt;,&lt;B pixel 1&gt;&lt;alpha pixel 1&gt; etc)</SPAN></P> <P>&nbsp;</P> Mon, 13 Aug 2018 15:38:24 GMT simons__philip 2018-08-13T15:38:24Z https://community.intel.com/t5/Intel-Integrated-Performance/Using-ippiAlphaComp-16u-AC1R/m-p/1170111#M26901 <P>I am trying to use&nbsp;ippiAlphaComp_16u_AC1R for alpha composition with a grey scale image with an alpha channel</P> <P>What is the format of&nbsp;pSrc1,pSrc2 and&nbsp;pDst buffers?</P> <P>These are&nbsp;<SPAN style="font-size: 13.008px;">&nbsp;Ipp16u</SPAN> buffers - but is the format of these buffers &lt;image data pixel 0&gt;&lt;alpha data pixel 0&gt;,&lt;image data pixel 1&gt;&lt;alpha data pixel 1&gt;etc&nbsp; in consecutive&nbsp;Ipp16u values?</P> <P>If so shouldn't the the name of the function&nbsp;<SPAN style="font-size: 13.008px;">&nbsp;be&nbsp;</SPAN><SPAN style="font-size: 13.008px;">ippiAlphaComp_16u_AC2R????</SPAN></P> <P>(Isn't&nbsp;<SPAN style="font-size: 13.008px;">&nbsp;</SPAN><SPAN style="font-size: 13.008px;">AC4R format &lt;R pixel 0&gt;&lt;G pixel 0&gt;&lt;B pixel 0&gt;&lt;alpha pixel 0&gt;.&lt;R pixel 1&gt;,&lt;G pixel 1&gt;,&lt;B pixel 1&gt;&lt;alpha pixel 1&gt; etc)</SPAN></P> <P>&nbsp;</P> Mon, 13 Aug 2018 15:38:24 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Using-ippiAlphaComp-16u-AC1R/m-p/1170111#M26901 simons__philip 2018-08-13T15:38:24Z