I'm working on a DFT filter for images using a Real filter.
I forward transform the image using ippiDFTFwd_RToPack_32f_C1R(). The result is packed complex.
I then want to multiply my filter into the transform, but there is a problem: I don't know how to create a packed filter, and there is no variant of ippiMulPack_32f that takes an non-packed filter as source.
Of course, I could create a complex filter, then convert that to packed complex, but that extra step is costly.
Is there an ippiMulPack that takes unpacked real input?
Does anybody know how to write a packed complex image?
(w*h 32fc image array)