You're going to save expensive color pigments (toner/ink). Depending on your printer, the print job can be done in one pass instead of 4 (up to 4 times faster). You're sure you won't get any color cast...
In short, your print will be better, faster and cheaper. 2007/3/13, Terence Chan <terence at onetel.com>: > > Excuse my ignorance but why is it important/deirable to have greyscale > images on the K plate only? I finished a book recently with lots > of greyscale images colour profiled in RGB/CMYK PDF (set to "printer"). > The page proofs from the printer look just like what I wanted, so what's > wrong with that? > > Terence > > On Tue, 13 Mar 2007, Vladimir Savic wrote: > > > > > Try! And prove you're wrong! Tested with Acrobar Pro from CS creative > suite. > > RGB input is not a bad solution at the first place. :) Output is color > > profiled CMYK PDF. (which means that fallowing my procedure, finally > applied > > color profile will only effect visual appearance of K plate, but not > it's > > nature - it will be grayscale (that is K only), not composite > grayscale.) > > > > BTW, I'm running linux, so I don't have anything other then The GIMP to > work > > with. Using PS on win boxes is much faster/natural way to make CMYK > images > > without that much pain, but never tried it... :( > > > > Vlada > > > > > Setting the image to CMYK does work for me. I don't know wich app you > > > use but if you convert > > > your image to CMYK you should make sure you delete all data from the > > > CMY channels and copy the original > > > K or Grayscale data only to K or try "maximum Black" conversion mode > > > (before you import them) > > > > > > Jon > > > > > > Am 12.03.2007 um 12:54 schrieb Vladimir Savic: > > > > On Monday 12 March 2007 17:43:36 Terence Chan wrote: > > > >> Yes, I believe this is normal behaviour for scribus - why is this > > > >> a problem? So long as you apply the appropriate icc input and > output > > > >> profiles the greyscale images should appear ok when printed and on > > > >> the screen. > > > >> > > > >> Terence > > > > > > > > Hmmm... > > > > I was doing something obviously wrong here too (talking about > > > > Scribus 1.3.3.x > > > > not 1.3.4cvs). "Appropriate profile" is a key point. No profile can > > > > ensure > > > > grayscale RGB (picture in RGB color space but completely > > > > constructed of r=g=b > > > > values pixels) picture to appear on K plate only when PDF gets > > > > token to > > > > prepress office. > > > > Right approach would be to ask of user if imported picture is > > > > composite > > > > grayscale picture or single color channel image. Fortunately, in > > > > 1.3.4 there > > > > is a simple solution: image effects -> apply colorize image and > > > > give that > > > > picture 'black' color colorization (Don't take further writing for > > > > granted > > > > but I think choosing 0%C 0%M 0%Y 100%K "in-Screibus hand made" > > > > color doesn't > > > > work correctly) > > > > > > > > Vlada > > > > > > > >> On Sun, 11 Mar 2007, Lila Pagola wrote: > > > >>> hi! > > > >>> I'm working with Scribus in a book, almost finished, because we > > > >>> are in > > > >>> press with everything except cover. > > > >>> > > > >>> Preparing the cover design for pre-press (I don't if in english > > > >>> it's said > > > >>> that way), I have found a rare behavoir of Scribus with grayscale > > > >>> images: > > > >>> they are considered as RGB files, in any format I try to import > them > > > >>> (PNG8, gif, tif). And If I import them as CMYK I have information > > > >>> in the > > > >>> 4 channels when the image is just black. > > > >>> > > > >>> Somebody has experiencied something similar? Am I doing something > > > >>> wrong? > > > >>> I did a quick search on the web and the list's archives and I > > > >>> didn't find > > > >>> any report of this problem. > > > >>> > > > >>> Our project has a wiki when we are uploading the problems and > > > >>> solutions > > > >>> we found, in spanish, sorry (and for my english sorry too) > > > >>> the url is http://nomade.liminar.com.ar/wakka.php?wakka=MaBI > > > >>> > > > >>> Thanks in advance for any clue ... > > > > _______________________________________________ > > Scribus mailing list > > Scribus at nashi.altmuehlnet.de > > http://nashi.altmuehlnet.de/mailman/listinfo/scribus > > > > > _______________________________________________ > Scribus mailing list > Scribus at nashi.altmuehlnet.de > http://nashi.altmuehlnet.de/mailman/listinfo/scribus > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://nashi.altmuehlnet.de/pipermail/scribus/attachments/20070314/bcf11e8a/attachment.html
