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• User Jonas

• Location: Montreal, Canada Age: [unknown] 1.6k

• About Jonas
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• Top 2 questions
• 6

  Why should I zero-pad a signal before taking the Fourier transform?

  In an answer to a previous question, it was stated that one should zero-pad the input signals (a…

  fft

• 1

  How do I determine whether I have pattern-free noise?

  For microscopy, we're frequently testing cameras. Since my applications involve very low signal-to-n…

  noisecamera

• Top 5 answers
• 0

  what is smoothing in very basic terms

  Others have mentioned how you do smoothing, I'd like to mention why smoothing works. If you properl…

• 4

  Anti-aliased boolean masks for integration of CCD images

  You're right: mathematically speaking, nothing would prevent you from defining a grayscale mask. Pra…

• 12

  Is this a correct method for fixed pattern noise correction?

  The black image is the sum of a fixed pattern and dark noise (which most likely follows a normal dis…

• 6

  interview questions for DSP engineer

  When I interview people, my questions depend a lot on the CV they've submitted. If they're fresh f…

• 6

  How do I reconstruct text from an image using only morphological operations?

  If you're willing to add/subtract etc. morphologically transformed images, you can count how many si…

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