What are the results of the two-dimensional Fourier transform of the image?
For an intuitive interpretation of the Fourier transform, refer to the link below. enter link description here
Why is the result of FFT different when we used the same image? In the image I converted to matlab, many peak points are created horizontally, not three peak points.
Only three peak points appear in the image described above.
Also, if the 'input(1)' image is represented as 'imshow', it appears like a different image from the original image (2).
Why does this result come out?
What is the correct result?