Re: [Groff] Re: CMYK <-> RGB

[Larry Jones]

Keith Packard writes:
> 
> >   CMYK_ADOBE_COLORSPACE:
> > 
> >     r = (k*c)/maxval;
> >     g = (k*m)/maxval;
> >     b = (k*y)/maxval;
> 
> This one is clearly wrong -- CMYK is traditionally a subtractive space.

That's Adobe for you!  They really have used a CMYK color space where 0
is full ink rather than no ink (it really should be called RGBW).  I've
run across it in either JPG or TIFF files produced, I think, by old
versions of Photoshop.

-Larry Jones

I sure wish I could get my hands on some REAL dynamite. -- Calvin