Groups > comp.graphics.apps.gnuplot > #3462

Re: Overlapping/Merge two density plot red and green scale using gnuplot

From	dale <dale@dalekelly.org>
Newsgroups	comp.graphics.apps.gnuplot
Subject	Re: Overlapping/Merge two density plot red and green scale using gnuplot
Date	2016-11-15 21:45 -0500
Message-ID	<9sd6po.kd5.19.1@news.alt.net> (permalink)
References	<093d02c9-93e0-4d98-b0ab-3144692fdd0a@googlegroups.com> <9sd4sr.9c6.19.1@news.alt.net>

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On 11/15/2016 9:13 PM, dale wrote:
> simple mixing
> (R,G,B)= R/(R+G+B) + G/(R+G+B) + B/(R+G+B)

probably made the same err you did, you do need to add the secondary 
terms if you are mixing colorants and not mixing color, an equidistant 
color space like CIELUV you don't have the other terms

R=255*(R/(R+G+B) + R+G/(R+G+B) + R+B/(R+G+B))
G ...
B ...

if you had a reference medium metric like RIMM,ERIMM,ROMM , see 
www.color.org , "reference devices" or something that is close and fits 
its purpose, you might assume equidistance there




-- 
dale | http://www.dalekelly.org

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Thread

Overlapping/Merge two density plot red and green scale using gnuplot Graziani Candiotto <graz13@gmail.com> - 2016-11-14 11:59 -0800
  Re: Overlapping/Merge two density plot red and green scale using gnuplot dale <dale@dalekelly.org> - 2016-11-15 21:13 -0500
    Re: Overlapping/Merge two density plot red and green scale using gnuplot dale <dale@dalekelly.org> - 2016-11-15 21:45 -0500
      Re: Overlapping/Merge two density plot red and green scale using gnuplot dale <dale@dalekelly.org> - 2016-11-16 00:51 -0500
        Re: Overlapping/Merge two density plot red and green scale using gnuplot dale <dale@dalekelly.org> - 2016-11-16 07:41 -0500
  Re: Overlapping/Merge two density plot red and green scale using gnuplot dale <dale@dalekelly.org> - 2016-11-17 21:32 -0500
    Re: Overlapping/Merge two density plot red and green scale using gnuplot dale <dale@dalekelly.org> - 2016-11-18 00:42 -0500
      Re: Overlapping/Merge two density plot red and green scale using gnuplot dale <dale@dalekelly.org> - 2016-11-18 00:46 -0500
      Re: Overlapping/Merge two density plot red and green scale using gnuplot dale <dale@dalekelly.org> - 2016-11-18 21:57 -0500

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