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Fixed Point
  • Member for 9 years, 5 months
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8 answers
140 votes
167k views
131 bookmarks
Why is the Fourier transform so important?
5 answers
125 votes
80k views
97 bookmarks
What does frequency domain denote in case of images?
6 answers
96 votes
185k views
77 bookmarks
Why should I zero-pad a signal before taking the Fourier transform?
2 answers
65 votes
32k views
84 bookmarks
Why so many methods of computing PSD?
10 answers
49 votes
16k views
25 bookmarks
What is the least JPG-compressible pattern? (camera shooting piece of cloth, scale/angle/lighting may vary)
7 answers
17 votes
6k views
8 bookmarks
What are some of the differences between DFT and FFT that make FFT so fast?
9 answers
16 votes
26k views
16 bookmarks
Why do we use window in time domain rather than do FFT modify the spectrum and than inverse FFT
3 answers
10 votes
6k views
4 bookmarks
Is it correct to subtract a low-pass filtered signal from the original signal and use the result as a "high-pass"?
2 answers
3 votes
342 views
2 bookmarks
Resources for learning about filters from scratch?