Image Processing Reference
In-Depth Information
Time domain signals
Frequency domain spectra
Fcos
(
)
cos
(t)
t
(a) Cosine wave
(b) Fourier transform of cosine wave
g(t)
Fg(
ω
)
t
(c) Gaussian function
(d) Spectrum of Gaussian function
Delta (t, 0)
1
t
(e) Delta function
(f) Frequency content of delta function
many
d(t,
Ψ
)
1
manyd
,
t
(g) Sampling function in time domain
(h) Transform of sampling function
Figure 2.6
Fourier transform pairs
