Matlab image acquisition exposure value

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matlab user guy
matlab user guy am 7 Dez. 2012
How is the exposure time calculated from the exposure value that you set? Right now I am setting it to -10, but I'm not sure what the actual exposure time is.
Thanks.

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Walter Roberson
Walter Roberson am 7 Dez. 2012
Exposure value does not indicate the exposure time directly. Rather, an EV of -10 means to expose the picture about 1024 times longer than would otherwise be the case. See http://en.wikipedia.org/wiki/Exposure_value

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