Re: 16-bit vs 8-bit images
Re: 16-bit vs 8-bit images
- Subject: Re: 16-bit vs 8-bit images
- From: Todd Flashner <email@hidden>
- Date: Tue, 12 Feb 2002 02:38:44 -0500
on 2/11/02 10:19 PM, Marco Ugolini wrote:
>
We know that very rarely we end up using images without making any
>
modifications to them, sometime quite extensive; so, given the SAME image
>
scanned in 8 bits and in 16 bits with the SAME scanner (if it allows for
>
16-bit scans), which of the two scans can be altered more radically before
>
visible image deterioration occurs? That, to me, seems the question to be
>
asked, one based in real-life production scenarios, which are the ones I
>
face in my work every day.
Snip
>
Besides the difficulty of
>
establishing how truly "16-bit" our images are, the other substantial
>
problem to be overcome, for the time being, is that Photoshop's support of
>
16-bit workflow is still scant, although better than in the past. But the
>
day that editing truly 16-bit images in Photoshop is made as easy and
>
far-ranging as in 8 bits, do we doubt that professional work will be done in
>
16 bits?
Hi Marco
I think you've succinctly captured the 16-bit vs 8-bit scenario, but I see
the question a little bit differently. As you've stated, there's no doubt
that 16-bits of data gives you more room to maneuver without visible
detriment, and you've stated that in the future, when PS fully supports
16-bit data with all the tools we need, there'll be little reason not to use
16-bit data.
But in the meantime we are faced with the middle difference, the production
environment where highbit images are twice the size of 8-bit, and some
factor (2x, 4x?) more cumbersome/less flexible to manipulate than 8-bit
images, so when is the the extra effort and resources a highbit workflow
entails worthwhile, and when does the size, speed, convenience, and
flexibility, of 8-bit mode justify itself?
So often the bit depth conversation is discussed in absolute terms, as
though one mode is better than another, when I think the question is what
types of data, images, workflows, outputs, etc., justify the use of one mode
over the other.
Good seeing you here,
Todd Flashner
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