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Re: spreadsheet for CIE-94?
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Re: spreadsheet for CIE-94?


  • Subject: Re: spreadsheet for CIE-94?
  • From: Graeme Gill <email@hidden>
  • Date: Thu, 29 Jul 2004 11:49:06 +1000
  • Organization: Color Technology Solutions

Randy Norian wrote:
I was able to plug in the equation for Delta-E 76 , but I was sort of taken aback at the size of the CIE-94 equation. It has a sort of recursive complexity that I fear I will mangle when entering the formula. I'm using the Graphic arts constants.

Just wondering if anyone has a spreadsheet that includes this formula (and might be willing to share) ?

CIE-94 isn't easily reducible to a "formula", at least not without
it ending up being huge (maybe someone has slogged through this exercise).
It's much simpler when intermediate variables are used in its calculation,
hence a "procedure" is a more natural way of doing it. In something like
Excel, this means using Visual Basic to create a custom function. (No,
I haven't tried to do this, as I'm not familiar with Visual Basic. My
CIE94 deleta E is coded in C).

Graeme Gill.
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    • Re: spreadsheet for CIE-94?
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 >spreadsheet for CIE-94? (From: Randy Norian <email@hidden>)

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