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From: "rubionelove " <rubionelove@gmail.com>
Newsgroups: comp.soft-sys.matlab
Subject: Lab color space issue
Date: Mon, 12 Oct 2009 13:15:21 +0000 (UTC)
Organization: Politecnico di Torino
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Dears all, 
I've a color in Lab format

L=69
a=30
b=71

if I fix L value  to 30. How can I find a and b values of the colour
since they do not change in a linear way?

thank you very much