[R] RGB -> CYMK, with consistent colors

[Derek M Jones]

Martin,

> Have you tried printed a few pages in CMYK?
> 
> A monitor is based on mixing light using Red-Green-Blue. So it is not
> possible for the monitor to show
> CMYK which must be printed on paper to view correctly.

Yes, I have printed some 'CMYK' pages.

The blue is very obviously not cyan, as compared to printing the
RGB version.

-- 
Derek M. Jones           Evidence-based software engineering
tel: +44 (0)1252 520667  blog:shape-of-code.coding-guidelines.com