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| sci.optics | Discussion relating to the science of op | 12,750 messages |
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| mc@uga.edu to All |
| Which definition of decibels in camera s |
| 20 Oct 16 19:36:57 |
When calculating the signal-to-noise ratio in a (linear) digital image, should one define the decibel as 10*log10 or 20*log10 ? The case for 10*log10 is that the values represent luminous intensity, which is power. The case for 20*log10 is that the values represent voltages in the CCD cells. I see some people doing it either way. Which is best? Is there a standard? --- SoupGate-Win32 v1.05 * Origin: you cannot sedate... all the things you hate (1:229/2) |
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