Again, trying to transcode some matlab ideas to IPP based C++ : is there a similar function in IPP that
performs the fftshift operation, as in Matlab? (shift zero frequence to the center of the space). Or, if someone can confirm that the FFTFwd etc.
already result in transforms in this format, and that fftshift operation is not required.
When I check the fftshift function here: http://www.mathworks.com/help/matlab/ref/fftshift.html
For vectors, fftshift(X) swaps the left and right halves of X. For matrices, fftshift(X) swaps the first quadrant with the third and the second quadrant with the fourth.
Could you try to use the ippiCopy_xxx function to swaps these data one by one block?