The problem of noise removal after FFT of polygon mask
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I want to perform FFT on the polygon mask. The polygon mask data is `hexagon.mat`, and the image `star` is obtained after the following operation.
Y_starburst = abs(fftshift(fft2(hexagon))).^1.2;
Y_starburst = Y_starburst/255;
figure;
imshow(Y_starburst);
How to operate to get only six bright stripes and delete the surrounding messy stripes? Any help would be greatly appreciated.
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Accepted Answer
Matt J
on 14 Apr 2023
Edited: Matt J
on 15 Apr 2023
If you increase the sampling fineness, I expect the artifacts will diminish.
3 Comments
Matt J
on 17 Apr 2023
load hexagon
Y_starburst = abs(fftshift(fft2(X))).^1.2;
Y_starburst = Y_starburst/255;
figure;
imshow(Y_starburst); caxis([0,255]); axis([181.8347 339.7194 181.5928 339.4775])
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