Re: On ProPhotoRGB
Re: On ProPhotoRGB
- Subject: Re: On ProPhotoRGB
- From: Busher Jr Richard C <email@hidden>
- Date: Tue, 28 Feb 2006 23:34:43 -0800
At 7:45 PM -0500 2/27/06, Roger Breton wrote:
I don't suppose there exists anything that can convert
"intelligently"
between RGB spaces, capable of compressing extremes while avoiding
dumb-type
of matrix clipping? Akin to B2A0 type of conversions for an output
profile?
Bruce Fraser wrote:
An intelligent human operator?
Ric Cohn wrote:
Aren't most of the colors we're talking about outside most (or all)
monitor's gamuts? Aren't many of the colors we're talking about
outside any current printer's gamut? I do want to avoid colors
blocking up due to gamut compression. I do want to be sure that my
RGB image will convert well to CMYK.
Question: How does an "intelligent human operator" use this color
data intelligently (in a way that leads to a better printed result)?
This appears to me to be an area (like monitor calibration) where I
might prefer a well written piece of color management code to my eyes.
Respectfully asked.
Ric Cohn
Dear Ric,
If there is a written piece of information that will tell you how to
convert all of the out-of-gamut colors (from whatever rgb color space)
to cmyk (in whatever output space) then I am out of business.
I am one of those "intelligent human operators". Over the course of
many years, and continuing today, I have learned how to convert
out-of-gamut rgb colors into "pleasing" cmyk colors.
I could tell you some of my methods, but unless I wrote a book I would
be cutting my own throat to do so.
I can tell you that the problem is to come up with "pleasing" colors.
That means maintaining "shape" in those troublesome colors, and coming
up with cmyk colors that "feel" like the rgb colors of your
transparencies or digital capture photos. It's not easy, and that's why
I still have clients.
Cheers,
Dick Busher
Cosgrove Editions
888-507-7375
email@hidden
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