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16 bits should be enough for anybody?

16 bits should be enough for anybody?

Posted May 18, 2012 9:03 UTC (Fri) by alankila (subscriber, #47141)
In reply to: 16 bits should be enough for anybody? by rgmoore
Parent article: LGM: GIMP's new release, new über-core, and future

All you say sounds plausible to me. It's a pity that real scenes may easily have contrast ratios in excess of 1:10000, as that implies that a single snapshot will not capture them properly any time soon.


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16 bits should be enough for anybody?

Posted May 19, 2012 20:14 UTC (Sat) by rvfh (subscriber, #31018) [Link]

At the same time, I'm not sure our eye does better than that, so we may be asking a lot from ADCs when expecting to see all details in a high-contrast scene.

Bracketing

Posted May 22, 2012 1:43 UTC (Tue) by gmatht (guest, #58961) [Link]

Good auto exposure bracketing can give over 16bits of depth in something that behaves somewhat like a single snapshot. If there were cameras that could take a 1/4000 shot immediately prior to a 1/40 shot we'd get several extra bits essentially for free; unfortunately cameras tend to put 0.1s or more between burst shots, making this less useful for moving objects.

Bracketing

Posted May 22, 2012 9:14 UTC (Tue) by etienne (subscriber, #25256) [Link]

> If there were cameras that ... wide dynamic range

My oldish Sanyo HD2000 camera has a mode to do that automatically; obviously that mode disable flash and gives bad result when the subject moves extremely fast [so can be disabled] but in some cases result is impressive, without post-treatment needed.

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