On: PostScript’s sudden death in Sonoma

[TylerE]

Someone needs to do a "what computer scientists don't know about color" article.

Like, in CYMK is black <0,0,0,1> or <1,1,1,1>? Depends.

[j16sdiz → TylerE]

<1,1,1,1> exceeds the ink-limit, try <.4,.4,.4,1>

[TeMPOraL → TylerE]

Is this a graphics designers' equivalent to the difference between 0 and -0?

[TylerE → TeMPOraL]

No, on actual paper one is darker and more saturated than the other. Unlike RGB, CMYK is subtractive, so “all of everything” gives you black, not white.

https://www.rightbydelzer.com/standard-black-vs-rich-black

[TeMPOraL → TylerE]

Digitally these should be equivalent. Physically, I'd assume it's just as likely that adding CMY pigments would dilute the K and make it less purely black - but, per link you shared, it seems it's the opposite, and I didn't even realize this is an actual technique. Thanks for posting!

[TylerE → TeMPOraL]

They aren’t using water based ogments. Dilution isn’t a thing.