The magnitude spectrum tells you how strong are the harmonics in a image and the phase spectrum tells where this harmonic lies in space .
Read moreWhat is phase in frequency analysis?
The magnitude tells you the strength of the frequency components relative to other components. The phase tells you how all the frequency components align in time . Plot the magnitude and the phase components of the frequency spectrum of the signal. The magnitude is conveniently plotted in a logarithmic scale (dB).
Read moreWhat is FFT phase spectrum?
The FFT function computes the complex DFT and the hence the results in a sequence of complex numbers of form . The amplitude spectrum is obtained. For obtaining a double-sided plot, the ordered frequency axis (result of fftshift) is computed based on the sampling frequency and the amplitude spectrum is plotted.
Read moreWhat is the difference between the magnitude and the phase spectrum of the Fourier transform?
The magnitude is the square root of the sum of the squares of the real and imaginary parts and the phase is the arctan(Im/Re) , so you can plot these individually and see how the amplitude varies over frequency and also any phase shifts that may occur at different frequencies.2 Haz 2020
Read moreWhat is the magnitude of a wave?
Its magnitude is either the wavenumber or angular wavenumber of the wave (inversely proportional to the wavelength), and its direction is ordinarily the direction of wave propagation (but not always; see below).
Read more