1 | initial version |
It looks like WITH_IPP=ON
did the trick.
2 | No.2 Revision |
It looks like WITH_IPP=ON
did the trick.
As a side note, padding can make a huge difference as well, as explained here: https://docs.opencv.org/2.4/doc/tutorials/core/discrete_fourier_transform/discrete_fourier_transform.html