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On Jan 3, 2012, at 2:20PM, Brendan Bolles wrote: > On Dec 31, 2011, at 11:13 AM, Dave Bittner wrote: > >> I've got some footage from a Photron high speed camera that's presented an interesting challenge to me. The camera records a sequence of images that have a 48 bit depth, which is a large dynamic range. On export to QuickTime, however, you are forced choose a bracketed range of 8 bits. After multiple exports, I'm left with a movie that's underexposed, one that's properly exposed, and one that's overexposed. I want to combine then, HDR-style, to show the details in the highlights. (The footage is a series of explosions, so there's a lot going in the highlights.) > > > This is interesting. So when you say bracketed range, do you mean that you're only able to choose 1/6 of the histogram, or that you set your white point and it crams everything from black to that point into an 8-bit file? The latter is essentially what you get from doing different exposures in a camera, the former would be unusual. Yes, I'm only able to choose 1/6 of the histogram for export. It's strange, and not something I've ever run across. |
