Image A
Image B
log |FFT(A)|
log |FFT(B)|
Result C Phase B Mag A
Result D Phase A Mag B
Select a pair to begin
🔬 The Key Insight
Result C uses Magnitude from A + Phase from B. Notice how it looks geometrically like Image B — the edges, shapes, and structure all come from B's phase.
Result D uses Magnitude from B + Phase from A. It looks geometrically like Image A.
Conclusion: The Fourier Phase carries structural information (edges, geometry, spatial arrangement), while the Magnitude only carries energy distribution and texture. Phase is what matters for recognizing objects!