From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/3531 Path: main.gmane.org!not-for-mail From: Hraban Newsgroups: gmane.comp.tex.context Subject: Re: Duotone Date: Tue, 05 Dec 2000 21:16:01 +0100 Sender: owner-ntg-context@let.uu.nl Message-ID: <3A2D4CFD.7A35B14E@gmx.net> References: <3A2CF5F6.CA774A57@econ.muni.cz> Reply-To: angerweit@gmx.net NNTP-Posting-Host: coloc-standby.netfonds.no Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Trace: main.gmane.org 1035394261 17843 80.91.224.250 (23 Oct 2002 17:31:01 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Wed, 23 Oct 2002 17:31:01 +0000 (UTC) Original-To: ConTeXt Xref: main.gmane.org gmane.comp.tex.context:3531 X-Report-Spam: http://spam.gmane.org/gmane.comp.tex.context:3531 Michal Kvasnicka wrote: > The color separation discussion reminds me to ask one more question: > how can I handle duotone with ConTeXt. > > 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: a greyscale picture with two different gradation curves for two colors, e.g. black and brown (to look "old") or black and grey (real duotone for artistical bw-photos). Photoshop can save such duplex pictures as EPS. But layout programs like QuarkXPress can't handle the two included gradations and spot colors, so that they give only a greyscale picture. For that purpose you must save such pictures as "multi channel", so that two separations are pre-defined. (CMYK would be a four-color- multichannel) My colleague told me, that such would be separatable by QXP (I never tried it myself). If you're not talking about photos but only text or vector graphics with two colors (black and a spot color), it's something different. With the mentioned "aurora" you can separate not only CMYK, but even such spot colors from a PS file. You must send the PS file once for every separation, every time with an other header file that changes all other colors to white. I tried it with my HP laserprinter, and it worked. That means not automatically, that it will work with a film typesetter / RIP. Grüßlis vom Hraban! --- http://angerweit.tikon.ch/lieder/ http://www.planet-interkom.de/fiee.visuelle/formelsammlung.html