On Saturday 08 August 2009 11:58:40 am Gregory Pittman wrote: > On 08/08/2009 11:57 AM, John Culleton wrote: > > On Friday 07 August 2009 07:19:29 pm John Culleton wrote: > >> LSI is enforcing a rule that total ink coverage of any CMYK > >> color cannot exceed 240% The usual example is rich black. > >> > >> 1. Can this be a problem in Scribus? > >> 2. If so, how does one detect/fix such overcolored areas? > >> > >> I presume that none of the standard colors exceed this limit. > >> But I worry about graphics from e.g., Gimp which are RGB > >> converted to CMYK when Scribus writes the file. > > > > To further illuminate the question, these are the recommended > > values whan using Photoshop: > > ------------------------ > > Engine: Adobe (ACE) > > Intent: Relative Colorimetric > > Use Black Point Compensation: Yes > > Use Dither: Yes > > ------------------------------- > > and > > ----------------------------------- > > Ink Colors: SWOP (Newsprint) > > Dot Gain: 25% > > Separation Type: GCR > > Black Generation: Medium > > Black Ink Limit: 100% > > Total Ink Limit: 240% > > UCA Amount: 0% > > ------------------------------- > > for the custom CMYK settings. > > > > Perhaps there is an ICC profile that can take care of all this. > > I don't know that there are any color sets that come with Scribus > that will exceed this. Of course, we get some list questions from > some who think that they want all the CMYK saturated, but > obviously don't understand the printing issue. > > What it does suggest, though, is that one of the things the > Preflight Verifier could do would be to check for ink limits. > Maybe you could file an RFE. > > Not sure how they might imagine someone specifying > 100% > Black...seems that would be kicked out by the printing equipment. > > Greg > > _______________________________________________ > scribus mailing list > scribus at lists.scribus.info > http://lists.scribus.info/mailman/listinfo/scribus
Consider the image from Gimp that has black on it. That is RGB 0 0 0. What would Scribus change it to in CMYK? -- John Culleton Create Book Covers with Scribus/e-book $5.95 http://www.booklocker.com/books/4055.html
