PanoTools:
Re: Real benefits to using 16bit images?
Ian Wood 2004-Nov-08 00:14:53
16-bit for most uses doesn't make much difference. Where it really
comes in to its own is when you make big alterations to the tone or
colour of an image, using the adjustment tools in Photoshop, e.g. a
really drastic highlight/shadow correction. In theory (and often in
practice) the 8-bit image will break up into distinct steps in tone
where the 16-bit image will still have a proper graduation.
I mostly shoot in RAW and convert to 8-bit because of time and file
sizes.
Ian
On 7 Nov 2004, at 21:23, joelbierling wrote:
>
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> I'm processing a few hundred images that make up panos using
> ptstitcher and enblend. My source images are Nikon D70 RAWs which I
> understand is a "lossless" (lossy depending on who you talk to)
> compressed 12bit format.
>
> I'm just wondering if there are any real benefits in converting the
> RAWs to 16bit tiffs vs. using 8bit tiffs. I know theoretically there
> are benefits but doing a few comparisons between images stitched using
> 16bit tiffs I don't see any difference from the 8bit variety.
> Ptstitcher and enblend do a great job with 8bit images. Are they
> supposed to do a better job with 16bit images?
>
> Am I missing a situation where 16bit is going to result in a higher
> quality image or am I just not looking at my test images with a
> critical enough eye? Obviously, the smaller 8bit images process
> faster and take up less storage space.
>
> Thanks,
> -Joel
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> Yahoo! Groups Links
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