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

Explain atomic structure & energy band diagram of germanium, Explain Atom...

Explain Atomic structure and Energy Band Diagram of Germanium. Germanium : This is one of the most common semiconductor material utilized in the application in electronics.

Determine vc in given circuit, Q. Consider the circuit of Figure in which t...

Q. Consider the circuit of Figure in which the switch S has been open for a long time and is closed at t = 0. Determine v C (t) for t ≥ 0.

Critical rate of rise of voltage - thyristor , Critical Rate of Rise of Vol...

Critical Rate of Rise of Voltage It  depends on  the junction temperature higher  the junction  temperature lower  the critical rate of  rise of  voltage. It is also known  as

Explain the hysteresis loop of a magnetic material, Explain the hysteresis ...

Explain the hysteresis loop of a magnetic material. Hystereses loop-Below the Curie temperature all-ferromagnetic materials show the identified hysteresis in the B (i.e. flux

Alternator, How can I design alternator?

How can I design alternator?

Bjt, how do I find the ic and ve

how do I find the ic and ve

External frequency compensation of operational amplifier, Q. External Frequ...

Q. External Frequency Compensation of operational amplifier? For applications requiring a more extended high-frequency response, there are op amps with no internal compensation

A, A microstrip antenna system operating at 915MHz must be designed using R...

A microstrip antenna system operating at 915MHz must be designed using Rogers RO3010 substrate with the thickness of 0.635mm.

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