topic IPP_VERSION_STR "2019.0.2" in Intel® Integrated Performance Primitives

Bilateral filter performance issue

Gang_B_ — Sat, 16 Mar 2019 04:00:07 GMT

Hi, ExpertsI had test Bilateral filter in ipp with ippiFilterBilateralGauss and ippiFilterBilateralGaussFast option. But found the performance of ippiFilterBilateralGaussFast is slower than ippiFilterBilateralGauss.

For 1080p 3 channels image on i7-6700k CPU and the latest version of IPP, ippiFilterBilateralGauss cost 10ms to process 1 frame, but ippiFilterBilateralGaussFast cost 500ms to process 1 frame.

Why ippiFilterBilateralGaussFast is slower than ippiFilterBilateralGauss?

Code is as follows:

status = ippiFilterBilateralBorderGetBufferSize_L(filter, size, radius, dataType, channels, distMethod, &specSize, &tmpBufferSize);
status = ippiFilterBilateralBorderInit_L(filter, size, radius, dataType, channels, distMethod, valSquareSigma, posSquareSigma, pSpec);
status = ippiFilterBilateralBorder_8u_C3R_L((Ipp8u*)pSrc, srcStep, (Ipp8u*)pDst, dstStep, size, border, OWN_GET_BORDER_VALP(8u, 3), pSpec, pTmpBuffer);

which version of IPP do you

Gennady_F_Intel — Sat, 16 Mar 2019 04:51:29 GMT

which version of IPP do you use?

IPP_VERSION_STR "2019.0.2"

Gang_B_ — Sat, 16 Mar 2019 05:02:42 GMT

IPP_VERSION_STR "2019.0.2" Windows version.

Did you test the filter before? How about the performance?

Gennady F. (Intel) wrote:
which version of IPP do you use?

did you check the status

Gennady_F_Intel — Mon, 18 Mar 2019 11:39:49 GMT

did you check the status value after each of these function call?

Hi Gang,

Igor_A_Intel — Mon, 18 Mar 2019 16:04:02 GMT

Hi Gang,

why do you use " ippiFilterBilateralGaussFast"filter type? In the chapter (IPPI manual) devoted to Bilateral filter the only one possible value is described: " ippiFilterBilateralGauss". If you check IPP function status after initialization attempt with " ippiFilterBilateralGaussFast" - you'll see that it is not supported. I'm curious how you've obtained 500 ms per frame if the function does nothing in this case - you should get 0 ms (I guess).

regards, Igor

Hi, Igor

Gang_B_ — Tue, 19 Mar 2019 06:58:07 GMT

Hi, Igor

You are right. I checked the returned value, it's 14.

#define ippStsNotSupportedModeErr -14 /* The requested mode is currently not supported. */

And actually, it cost 500ms and then return this value.

Intel had defined ippiFilterBilateralGaussFast several years before, when Intel will support ippiFilterBilateralGaussFast?

Igor Astakhov (Intel) wrote:
Hi Gang,
why do you use " ippiFilterBilateralGaussFast"filter type? In the chapter (IPPI manual) devoted to Bilateral filter the only one possible value is described: " ippiFilterBilateralGauss". If you check IPP function status after initialization attempt with " ippiFilterBilateralGaussFast" - you'll see that it is not supported. I'm curious how you've obtained 500 ms per frame if the function does nothing in this case - you should get 0 ms (I guess).
regards, Igor

hi, Gennady

Gang_B_ — Tue, 19 Mar 2019 07:01:15 GMT

hi, Gennady

I checked the status, its -14.

#define ippStsNotSupportedModeErr -14 /* The requested mode is currently not supported. */

Intel had defined ippiFilterBilateralGaussFast for several years. When intel will implement it?

Gennady F. (Intel) wrote:
did you check the status value after each of these function call?