Re: Photoshop Lab encoding (was: Scanner profile "too good"?)
Re: Photoshop Lab encoding (was: Scanner profile "too good"?)
- Subject: Re: Photoshop Lab encoding (was: Scanner profile "too good"?)
- From: Chris Murphy <email@hidden>
- Date: Sun, 4 Jan 2004 11:46:33 -0700
ICC conversions in Photoshop have been through at least 20-bits/channel
precision since Photoshop 5 if I recall correctly. Photoshop 7 and
Photoshop CS both support 16-bits/channel LAB.
On Jan 3, 2004, at 1:42 PM, Roger Breton wrote:
I was reading up on Photoshop, TIFF and ICC Lab "Integer" encoding
scheme on
Bruce Lindbloom excellent web site. And in the course of my reading, I
was
wondering whether Photoshop CS still uses the same internal 8 bit
integer
Lab encoding scheme used in previous versions?
It didn't occur to me that because CS now boats extended support for
16 bit
workflow because of 16 bit layers that the heart of Photoshop -- Lab --
still only 8 bit. Unless I am missing something.
Which means that, if I start with a fresh 16 bit RGB document that I
later
to convert to Lab, for some reason, the particular Lab flavor that the
source color get converted into is still only 8 bit Lab?
I don't suppose that there are any signs of 16 bit Lab on the horizon?
Chris Murphy
Color Remedies (TM)
www.colorremedies.com/realworldcolor
---------------------------------------------------------
Co-author "Real World Color Management"
Published by PeachPit Press (ISBN 0-201-77340-6)
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