Understanding Magnitude Spectrum of Images [closed]

1. What does a magnitude spectrum show?
2. What does the magnitude of Fourier transform tell us?
3. What is magnitude and phase spectrum?
4. What is the difference between the magnitude and the phase spectrum of the Fourier transform?

What does a magnitude spectrum show?

The Magnitude Spectrum of a signal describes a signal using frequency and amplitude. That is frequency components of a periodic signal are plotted using Frequency Domain - frequencies plotted in X-axis and amplitude plotted in Y-axis.

What does the magnitude of Fourier transform tell us?

For each frequency, the magnitude (absolute value) of the complex value represents the amplitude of a constituent complex sinusoid with that frequency, and the argument of the complex value represents that complex sinusoid's phase offset. If a frequency is not present, the transform has a value of 0 for that frequency.

What is magnitude and phase spectrum?

The magnitude and phase spectra are calculated from the complex output Xf using abs(Xf) and angle(Xf), respectively (see Example 3.3). Again, the angle routine gives phase in radians so as to convert to the more commonly used degrees scale by 360/(2π).

What is the difference between the magnitude and the phase spectrum of the Fourier transform?

Therefore, the amplitude spectrum of the exponential Fourier series is symmetrical about the vertical axis passing through the origin, i.e., the magnitude spectrum exhibits even symmetry and the phase spectrum is antisymmetrical about the vertical axis passing through the origin, i.e., the phase spectrum exhibits odd ...