func TestFFT2(t *testing.T) {
for _, ft := range fft2Tests {
v := FFT2Real(ft.in)
if !dsputils.PrettyClose2(v, ft.out) {
t.Error("FFT2 error\ninput:", ft.in, "\noutput:", v, "\nexpected:", ft.out)
}
vi := IFFT2(ft.out)
if !dsputils.PrettyClose2(vi, dsputils.ToComplex2(ft.in)) {
t.Error("IFFT2 error\ninput:", ft.out, "\noutput:", vi, "\nexpected:", dsputils.ToComplex2(ft.in))
}
}
}
// IFFT2Real returns the 2-dimensional, inverse FFT of the real-valued matrix.
func IFFT2Real(x [][]float64) [][]complex128 {
return IFFT2(dsputils.ToComplex2(x))
}