CODEWITHSUNDEEP
matlab
Jasmine Al-Qahtani
Jasmine Al-Qahtani

Reputation: 79

Discrete Fourier transformation

gauss=exp(-(x.^2+y.^2)/scale(i)^2);

gaus=gauss/sum(gauss(:));
x=fft2(gaus,size(image,1),size(image,2));

I want to ask about this part of codein MATLAB

  1. What is the meaning of colon here (gauss(:))
  2. I want to implement the Discrete Fourier transformation in ( x)
    by MAY OWN FUNCTION,Can I apply DFT to every three component independently and then add the result together?

Upvotes: 0

Views: 385

Answers (1)

nojka_kruva
nojka_kruva

Reputation: 1454

1) The colon operator reshapes the matrix into a vector.

2) You can transform each sample separately.

Upvotes: 1

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