ippiConv

dotrung_d_ — Fri, 03 Jul 2015 00:52:49 GMT

Hi. Can anybody help me with this problem. I have 2 images src1 and src2 of Mat type.

I want to use ippiConv to convolve but there was a problem of accessing memory.

Here is my code

Mat src1, src2, dest;

const IppiSize src1Size = { src1.size().width, src1.size().height };
   const IppiSize src2Size = { src2.size().width, src2.size().height};


   IppEnum funCfgFull = (IppEnum)(ippAlgAuto | ippiROIFull | ippiNormNone);
   IppEnum funCfgValid = (IppEnum)(ippAlgAuto | ippiROIValid | ippiNormNone);
   Ipp8u *pBuffer;
   int bufSizeFull, bufSizeValid, bufSizeMax;
   IppStatus status;

   status = ippiConvGetBufferSize(src1Size, src2Size, ipp32f, 1, funCfgFull, &bufSizeFull);

   status = ippiConvGetBufferSize(src1Size, src2Size, ipp32f, 1, funCfgValid, &bufSizeValid);

   bufSizeMax = IPP_MAX(bufSizeFull, bufSizeValid); // get max buffer size
   pBuffer = ippsMalloc_8u(bufSizeMax);

dest.create(src1.size(), CV_32F);
const IppiSize dstSize = { dest.size().width, dest.size().height };

ippiSet_32f_C1R(0, (Ipp32f*)dest.data, dest.step, dstSize);

ippiConv_32f_C1R((Ipp32f*)src1.data, src1.step, src1Size, (Ipp32f*)src2.data,
src2.step, src2Size, (Ipp32f*)&dest.data, dest.step, funCfgFull, pBuffer);

ippsFree(pBuffer);

Thank you in advance

Hello,

Chao_Y_Intel — Thu, 09 Jul 2015 05:32:54 GMT

Hello,

Could you provide the full test code for this problem? Also which version of IPP are you using now, and how IPP is linked there?

That will help us to reproduce this problem.

Thanks,
Chao

topic Hello, in Intel® Integrated Performance Primitives

ippiConv

Hello,