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Re: Delta H Comparison
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Re: Delta H Comparison


  • Subject: Re: Delta H Comparison
  • From: Lee Badham <email@hidden>
  • Date: Wed, 5 Aug 2009 10:37:18 +0100
  • Resent-date: Thu, 6 Aug 2009 17:19:29 +0100
  • Resent-from: Lee Badham <email@hidden>
  • Resent-message-id: <email@hidden>
  • Resent-to: ColorSync <email@hidden>

Hi,

We've got to be a little careful here in what we mean by dH because dH and dh are different.

The discussion has so far been about dh which is the difference in hue angle when using LCh

dH as used in the ISO 12647-7 proofing standard is a different formula

dH=da^2+db^2-dC^2

Lee Badham

On 4 Aug 2009, at 19:14, Jon Crook wrote:

Does anyone know of a software that give a good graphical representation of
Delta H? Is anyone using Delta H for quality assurance?
Thanks
--
Jonathan Crook
Director of Color Management
Corporate Image
www.corp-image.com
800.247.8194


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      • From: Mauro Boscarol <email@hidden>
References: 
 >Delta H Comparison (From: Jon Crook <email@hidden>)

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