Date: Sat, 6 Sep 2008 13:53:46 +0200 From: Polytropon <freebsd@edvax.de> To: Gary Kline <kline@thought.org> Cc: FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: Re: which gray is best for print? Message-ID: <20080906135346.d16975e7.freebsd@edvax.de> In-Reply-To: <20080906033645.GA93841@thought.org> References: <20080903231439.GA98955@thought.org> <20080905170804.GB20329@melon.esperance-linux.co.uk> <20080905200601.GA81339@thought.org> <20080905223859.8ad56b37.freebsd@edvax.de> <20080906033645.GA93841@thought.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Fri, 5 Sep 2008 20:36:45 -0700, Gary Kline <kline@thought.org> wrote: > So you're saying that the "white" on my [monster] CRT is not the > same as on a future LCD Display? rats:) Exactly. And compare the "black", too, best way to differentiate with CRT and LCD side by side with a fullscreen color "black". > --I can't see much > difference in my new laserjet from my HP500 DeskJet, but then it > wasn't a main concern ... . Human perception is another thing. Just because *I* can't notice something, it doesn't imply that (1) others can't and (2) it isn't there. In order to make a human person *feel* the change of a sensory input is linear (e. g. the light intensity increases), you need to increase the actual input in a logarithmic way. http://www.neuro.uu.se/fysiologi/gu/nbb/lectures/WebFech.html > I took all 5 quarters of physics, like most of us, but never got > far into optics. Physics comes in 5 quarters? 5 * 0.25 = 1.25... :-) > And certainly, nothing like *this*. I learned about this when I studied psychology and computational visualistics, but the RGB vs. CMY stuff (additive and subtractive color combination) was part of the basal school education in the GDR. > the > quality of my writing is much more important that the colors of > typeface or background. I really applaud this attitude. You won't find them very often across the web, sadly, because "style is more important than content". I've seen things, man, ... > But this is an interesting side-bar. It's a very important topic to know about when you're doing DTP stuff. Exact color calibration is very important in this field. So you can understand why there's still a niche market for quality CRT monitors and quality printing devices. Of course, color temperatures and other settings like contrast and brightness are to be considered, too. > Really! So far, in my tests [staring at a CRT], I find an > off-white reads most easily against a very dark blue. 000033; > or whatever 333366 is. Still experimenting. it's very individual how colors are percepted. If someone with deuteranopia looks at certain color combinations where others may say: "Looks good!", they could say: "I don't see text there." At least for printed material, black on white is good, and it even can be used for projection media (beamer). When I was at university, some guys put up a presentation with black text on dark bluie background, 10pt serife font. Bah! Unreadable in the last row. -- Polytropon >From Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20080906135346.d16975e7.freebsd>