Problem with ippiVarMean8x8_8u32s_C1R

Rosen__Daniel — Thu, 02 Nov 2006 03:46:20 GMT

ippiVarMean8x8 seems to be returning the sum and not the mean. Am I doing something wrong or is this a problem? This is with the 5.1.1 library.

Here's a code sample:

Ipp32s iVar, iMean;
IppStatus rc;
unsigned char testarray[] =
{
9,9,9,9,9,9,9,9,
9,9,9,9,9,9,9,9,
9,9,9,9,9,9,9,9,
9,9,9,9,9,9,9,9,
1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1
};

rc = ippiVarMean8x8_8u32s_C1R( testarray, 8, &iVar, &iMean );

After the call: iVar = 16 and iMean = 320.

Re: Problem with ippiVarMean8x8_8u32s_C1R

Vladimir_Dudnik — Mon, 06 Nov 2006 22:22:29 GMT

Could you please take a look on ipp manual? It contain description of that function, I think it is good enough. If it is not, from your point of view, please submit your report to Intel Premier Support.

Regards,
Vladimir

topic Problem with ippiVarMean8x8_8u32s_C1R in Intel® Integrated Performance Primitives

Problem with ippiVarMean8x8_8u32s_C1R

Re: Problem with ippiVarMean8x8_8u32s_C1R