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Re: "Visual Color Difference" chart [Re: (no subject)]
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Re: "Visual Color Difference" chart [Re: (no subject)]


  • Subject: Re: "Visual Color Difference" chart [Re: (no subject)]
  • From: Terry Wyse <email@hidden>
  • Date: Fri, 12 Jan 2007 08:17:50 -0500

That's about what I was going to suggest, creating Lab values with known delta distances from a reference Lab and simply converting that to CMYK. To keep things simple, I was thinking delta chroma going out from the center/reference color, delta hue going around the patch and then delta L* for luminance.

It would be awesome if someone could come up with a calculator that would calculate all the possibilities for a delta e of <x> away from a reference. Humm...I may have to do some poking around and see what can be done.

Terry


On Jan 12, 2007, at 3:57 AM, Klaus Karcher wrote:

Martin Orpen wrote:
Here's one to add a bit of colour to the list:

Nice script, but I think it's not at all what Rick expects. (Constant Delta E between the patches, patches along the a, b and L axes), maybe something like this:


http://digitalproof.info/colorsync-users/Lab.tif



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References: 
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 >"Visual Color Difference" chart [Re: (no subject)] (From: Klaus Karcher <email@hidden>)
 >Re: "Visual Color Difference" chart [Re: (no subject)] (From: Martin Orpen <email@hidden>)
 >Re: "Visual Color Difference" chart [Re: (no subject)] (From: Martin Orpen <email@hidden>)
 >Re: "Visual Color Difference" chart [Re: (no subject)] (From: Klaus Karcher <email@hidden>)

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