Re: Lab in Photoshop
Re: Lab in Photoshop
- Subject: Re: Lab in Photoshop
- From: Chris Cox <email@hidden>
- Date: Fri, 12 Jul 2002 11:39:52 -0700
At 6:40 AM +0200 7/12/02, neil snape wrote:
on 12/07/2002 04:05, Chris Cox at email@hidden wrote:
Unless you convert the image to LAB mode, the corners won't be clipped.
The encoding of the color mode and the encoding used by the CMM are
different -- the CMM doesn't clip.
Does this mean then that editing with Dan Margulis' techniques of doing some
trips to Lab for color corrections will have irreversible clipping from
Adobe 98?
Yes.
Plus, trips to LAB in 8 bit are bad because of increased quantization.
So the eyedropper readings show correctly the readings to X space
via the CMM (XYZ +/or Lab ) but converting will cause inevitable clipping?
The info palette will show the values as if they were converted
(using slightly lower precision preview tables). That means any
clipping will be reflected in the info palette values.
Chris
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