On Mon, 5 Jun 2006, Michael Schindler apparently wrote: > The conversion of colors into grayscales is not quite > straightforward. On any reasonable Postscript device, > however, the conversion rule defined in the Postscript > standard should be applied. This means > RGB -> GRAY: > GRAY = 0.3*R + 0.59*G + 0.11*B
OK. Section 7.2.1 of the red book. > Similar things can be defined for CMYK -> GRAY. A good reference on > these things is the documentation for the LaTeX package xcolor.sty. http://www.tug.org/tex-archive/macros/latex/contrib/xcolor/xcolor.pdf Interesting discussions! > A good color palette has a linear dependence of the such defined gray > value on the parameter. This is not exactly the case with BlackYellow, > but nearly. You can play with differently defined palettes in the file > <PYX-SVN>/design/palettetest.py Thanks! Alan _______________________________________________ PyX-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/pyx-user
