Change of phase, Electrical Engineering

Assignment Help:

Write an m-file "myfourier.m" which takes two images, computes FFT, phase and amplitude and swaps the amplitudes between two images.

function myfourier
im1=imread('cameraman.png');
imd1=double(im1); 
im2=imread('class_f.png');
imd2=double(im2);

FI1=fft2(imd1);
phase1=angle(FI1);
amplitude1=abs(FI1);

FI2=fft2(imd2);
phase2=angle(FI2);
amplitude2=abs(FI2);

NFI1=amplitude1.*exp(i*phase1);
NFI2=amplitude2.*exp(i*phase2);
RI1=ifft2((NFI1));
RI2=ifft2((NFI2));

figure;imshow(real(RI1),[]);
figure;imshow(real(RI2),[]);

NFI1=amplitude1.*exp(i*phase2);
NFI2=amplitude2.*exp(i*phase1);
RI1=ifft2((NFI1));
RI2=ifft2((NFI2));
figure;imshow(real(RI1),[]);
figure;imshow(real(RI2),[]);

What information is encoded in the amplitude and phase?
How the change of phase and amplitude affects the transformed image?


Related Discussions:- Change of phase

Construct a truth table and get the minimum sop expression, Q. For the logi...

Q. For the logic circuit of Figure, construct a truth table and obtain the minimum SOP expression.

Stop and wait flow control protocol, (a) Explain what asynchronous transmis...

(a) Explain what asynchronous transmission is and give two advantages and two disadvantages of using this type of transmission. (b) One of the goals of multiplexing is efficienc

Determine the induced voltage at full load, A 100-kW, 250-V shunt generator...

A 100-kW, 250-V shunt generator has an armature-circuit resistance of 0.05  and a field- circuit resistance of 60 . With the generator operating at rated voltage, determine the i

Operation of zener diode, Operation of Zener Diode The Zener diode's o...

Operation of Zener Diode The Zener diode's operation depends upon the heavy doping of its p-n junction permitting electrons to tunnel from the valence band of the p-type mater

Analog Filters, Each of the following functions is abs(H(jw))^2 of a certai...

Each of the following functions is abs(H(jw))^2 of a certain network function H(s). Obtain all the possible H(s) for each given abs(H(jw))^2. [(w^4)+25]/[(w^4)+(12w^2)+49]

Pdc, disadvantages of shunt&series clippers

disadvantages of shunt&series clippers

Find the steady state values, Question: Consider the circuit shown in F...

Question: Consider the circuit shown in Figure. There is no initial energy stored in the circuit until time t=0 when the switch is closed. (i) Transform the given circ

Speed control of stepper motor by using microcontroller 89c5, Hello sir, m ...

Hello sir, m engineering final year student, we made a project as I mentioned above, I wanna add some extra feature on it, meant to modified it...want to add up some extra feature

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd