Chapter6Time and Frequency CharacterizationThe auditory system is relative insensitivity to phase, but the phaseinformation is important in representing imagesA black-and-white picturex(t,t)<F>x(ja, ja,)X(j, jo,)= ft x(t,t,)e-iolie-jot dt,dt,Figure 6.2
Chapter 6 Time and Frequency Characterization A black-and-white picture ( ) ( ) F 1 2 1 2 x t t X j j , , ⎯→ ( ) ( ) 1 1 2 2 1 2 1 2 1 2 , , j t j t X j j x t t e e dt dt − + − − = Figure 6.2 The auditory system is relative insensitivity to phase, but the phase information is important in representing images
Chapter 6Time and Freguency Characterization[X(jo, jo,) IZx(jor, j,)(a)(b)(c)
1 2 | ( , ) | X j j 1 2 X j j ( , ) Chapter 6 Time and Frequency Characterization