RE: Custom Color Picker for Photoshop from external measurements
RE: Custom Color Picker for Photoshop from external measurements
- Subject: RE: Custom Color Picker for Photoshop from external measurements
- From: "Broudy, David" <email@hidden>
- Date: Wed, 28 Mar 2001 12:08:56 -0600
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-----Original Message-----
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From: Thomas Holm / Pixl ApS [mailto:email@hidden]
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Sent: Wednesday, March 28, 2001 10:01 AM
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To: Colorsync Users list
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Subject: Custom Color Picker for Photoshop from external measurements
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And suppose I for some reason measured the values in say
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Adobe RGB(1998),
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and entered the values as such, would they still be correct
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if I changed my
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Workingspace to say ColorMatch RGB? I guess what I'm asking is if the
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swatches palette always output "correct" color regardless of
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which workspace
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is chosen?
if you spec a Lab color in the color picker, or load a predefined swatch
table e.g. Pantone Coated, the lab (sometimes)/rgb/cmyk values in the picker
change according to your rgb/cmyk color settings. so it sounds like colors
in the swatch palette will change to reflect your current color setup.
what I don't get is why the Lab numbers change sometimes and not others
depending on the color type of the swatches e.g. if I pick Pantone Coated
494 the Lab numbers for that color seem to stay constant no matter how badly
I mangle my color settings, but if I pick Pantone Prosim 494, the Lab values
move around depending on my rgb/cmyk settings.
I can understand why the Lab numbers for a spot ink would not change as it
is a point of reference for simulation in rgb/cmyk, but I would think that
the same would apply to a process simulation of that spot ink, which has its
own reference Lab numbers that while different from those of the spot ink
are still a point of reference to a splotch of process color in a Pantone
book which is presumably the color I want to reproduce if I choose PMS
494CVP.
d easily confused, sometimes b.