I need to make 2d convolution with FFT
So my plan is: iFFT( FFT(A) * FFT (B))
I have tried it and for some reason the FFT center is not on the right place (the image is devised in 4 part).
So I have try iFFT( FFT(A)) and iFFT( FFT(B)) and have well the good result a and B
If someone has an idée or explication!
Thanks in advance for your help.
PS : Sorry for my lame English, I hope you’ll understand my problems.