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Re: Extending plot types - adding a CIE 1931 type diagram

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Hello, thanks for the ideas. 

> If it is merely plotting over a background image it is already possible,
> as Ethan said.

Plotting over an image will help a lot, I haven't noticed this feature.

> Or do you also intend some RGB to x-y(-Y) or even
> spectrum to x-y(-Y) conversion? This would require to include the RGB to
> XYZ matrices and/or the CIE colour matching functions.
> Another question would be whether it should be CIE 1931 2-deg standard
> observer only or also include the CIE 1964 10-deg standard observer. CIE
> 1931 seems to be outdated although it is still used for the definition
> of sRGB (the differences in the image would be small anyway).


I am doing the spectrum to CIE(x,y) processing in my PhD work, but the command 'splot ... with rgbimage' or 'splot ... with rgbalpha' will do all I need, and the data processing will be done separately, as well as the CIE diagram data generation can be.

To conclude, 'splot ... with rgbimage' is enough to do the job. 

Thanks again for the ideas.

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Extending plot types - adding a CIE 1931 type diagram hvezdny.cestovatel@gmail.com - 2013-08-07 13:24 -0700
  Re: Extending plot types - adding a CIE 1931 type diagram sfeam <sfeam@users.sourceforge.net> - 2013-08-07 18:51 -0700
  Re: Extending plot types - adding a CIE 1931 type diagram Ingo Thies <ingo.thies@gmx.de> - 2013-08-08 10:30 +0200
    Re: Extending plot types - adding a CIE 1931 type diagram hvezdny.cestovatel@gmail.com - 2013-08-16 02:47 -0700

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