RE: ScannerRGB to WorkingSpaceRGB (rendering intents)
RE: ScannerRGB to WorkingSpaceRGB (rendering intents)
- Subject: RE: ScannerRGB to WorkingSpaceRGB (rendering intents)
- From: "Fred Bunting" <email@hidden>
- Date: Tue, 10 Jul 2001 14:16:39 -0700
- Thread-topic: ScannerRGB to WorkingSpaceRGB (rendering intents)
Joel wrote:
>
The thing that irks me most about perceptual is that
>
it performs gamut compression REGARDLESS of whether the
>
image has out of gamut colors or not.
Terry commented:
>
Simply another case to be made for the "Smart CMM".
Perhaps ... although one has to be careful.
Currently, the amount of gamut compression (from perceptual rendering)
depends entirely on the relative sizes of the source and destination
spaces.
If the amount of gamut compression varies depending on the image
content, this can lead to unpredictable behavior. One solitary pixel
could concievably change the amount of gamut compression *dramatically*.
Fred Bunting
>
-----Original Message-----
>
From: Terry Wyse [mailto:email@hidden]
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Sent: Tuesday, July 10, 2001 7:47 AM
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To: ColorSync User List
>
Subject: Re: ScannerRGB to WorkingSpaceRGB (rendering intents)
>
>
>
Simply another case to be made for the "Smart CMM".
>
>
TW
>
>
on 7/10/01 10:02 AM, Joel wrote:
>
>
>> I simply don't find perceptual rendering working for the
>
majority of images
>
>> that I've come across. The thing that irks me most about
>
perceptual is that
>
>> it performs gamut compression REGARDLESS of whether the
>
image has out of
>
>> gamut colors or not.
>
>>
>
>
>
> Hmmm. It would be interesting if one could choose separate intents
>
> for ranges of selected colors/hues. Another tool w/fuzzy control for
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> PS 7? That would help me with me red thread...
>
>
_____________________________
>
Terence L. Wyse
>
Color Geekus Emeritus
>
All Systems Integration, Inc.
>
http://www.allsystems.com
>
email@hidden
>
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