Re: 16 bit scan vs. 8 bit scan/16 bit conversion
Re: 16 bit scan vs. 8 bit scan/16 bit conversion
- Subject: Re: 16 bit scan vs. 8 bit scan/16 bit conversion
- From: Boris Missirkov <email@hidden>
- Date: Sat, 25 Sep 2004 03:53:49 -0700 (PDT)
Hi James
I agree with Dave Scharf's advice: do "pre-processing" of each single image in 16
bit, then compose them together in 8 bit. I did pretty much the same lately,
assembling a series of 12 panos with 6-10 180Mb scans in each. (Even in 8 bit mode I
ended up with 2.5 Gb PSD files sometimes, which was quite a job for my G4.) I
sometimes upconvert the final flattened image to 16 bit for general or local
corrections (that does not add data, but reduces the risk of posterization -
especially in areas with slight gradations) and end up in 8 bit for print.
You might take a look at
http://www.radarlab.net/billboards.htm , if you're curious
to see the results.
Best:
Boris
=====
Boris Missirkov
Bulgarian Photographic Association
68 Budapesta str.
1202 Sofia - Bulgaria
tel./fax: +359.2.983.14.11, +359.2.983.19.29
mobile: +359.888.224.232
e-mail: email@hidden, email@hidden
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