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What is noise in cameras?

What is noise in cameras?


Noise is an unwanted signal, either contained in the relevant light signal or added to it by the imaging process. Noise prevents accurate measurement and evaluation of the light signal distribution (image). Noise usually comes from three main sources:

  1. Photon or shot noise
  2. CCD image sensor noise
  3. Read out or amplifier noise


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28 January 2024



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Imagination is more important than knowledge.

 Albert Einstein