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signal-to-noise ratio

In digital photography this is the amount of correct picture information to unwanted electrical interference. The S/N ratio should always be high so that good quality noise free pictures are produced.

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signal-to-noise ratio

Amount of noise in signal, expressed as ratio, measured in dB. Higher dB numbers are better.
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signal-to-noise ratio

Ratio between the value of a signal and the noise standard deviation.
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