From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/3537 Path: main.gmane.org!not-for-mail From: Hans Hagen Newsgroups: gmane.comp.tex.context Subject: Re: Duotone Date: Thu, 07 Dec 2000 09:58:21 +0100 Sender: owner-ntg-context@let.uu.nl Message-ID: <3.0.6.32.20001207095821.01d7e910@pop.wxs.nl> References: <3A2E6D93.8303CF84@gmx.net> NNTP-Posting-Host: coloc-standby.netfonds.no Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-Trace: main.gmane.org 1035394269 17943 80.91.224.250 (23 Oct 2002 17:31:09 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Wed, 23 Oct 2002 17:31:09 +0000 (UTC) Cc: angerweit@gmx.net, ntg-context@ntg.nl Original-To: siep@elvenkind.com In-Reply-To: <200012070830.JAA00922@plane.elvenkind.com> Xref: main.gmane.org gmane.comp.tex.context:3537 X-Report-Spam: http://spam.gmane.org/gmane.comp.tex.context:3537 At 10:32 AM 12/7/00 +0100, siep@elvenkind.com wrote: >On 6 Dec, Hraban wrote: >> Taco Hoekwater wrote: >>> > > Well, I'm not sure this is the >>> > > right English word. With `duotone' I mean documents typeset in two >>> > I think you mean "duplex" or just spot color separation. >>> > I'm just working on a project with duplex photos, that is: >>> I thought the word was duotone for these images, and we just call it >>> two color printing here? Anyway, one of the easiest solutions for this >> >> I'm not really sure. I don't have a media dictionary. >> I use(d) the words that are usual with Photoshop. >> >> In German we say "Duoton(e)" only for black+grey (for better b+w photos), >> but "Duplex" (Triplex etc.) for other combinations. >> You can achieve an easy pseudo duplex effect (with QuarkXPress and >> perhaps other programs) if you define fore- and background colors for >> greyscale pictures. > >I read in a book on Photoshop that duotones let you bring out more tonal >detail: you pick response curves for the different channels that >exaggerate contrast in different tonal ranges. In contrast, a fake >duotone will just lose you tonal detail. Which doesn't mean that you >should never use it, but you are trading decorative effect against >quality of rendering. There is something written about this in the [latest] pdf ref manual p 193, there 's also quadtone. Hans ------------------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com -------------------------------------------------------------------------