Thread Subject: Lab color space issue

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

"rubionelove " <rubionelove@gmail.com> wrote in message <havbjt$n4a$1@fred.mathworks.com>...
> 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

I'm completely confused by this question.

In your example color, L is 69, not 30. So what do
you mean by "fix L value to 30" ?

John