computing the SSD, ippi is not as good as opencv?

[Wynton]

Using the ippi library to compute the SSD in a 2D image, in many cases the benchmark performance is not as good as opencv?

In the ippi library, the operator used is

ippiSqrDistanceNorm_32f_C1R()

. The code sets

IppStatus status = ippiSqrDistanceNormGetBufferSize({length, 1}, {length - 2 * searchRange, 1}, (IppEnum)(ippAlgAuto | ippiROIValid | ippiNorm), &bufSize);.

In OpenCV, the function used is 

matchTemplate(refMatReal, tgtMat, nccMat, TM_SQDIFF_NORMED);

[Ruqiu_C_Intel]

Hello IPP users,

Thank you for posting question here. Can you share us a simple reproducer. As well as tell us your test environment, for example, OS, hardware platform, IPP version, openCV version, etc.